Big problem - What's going on!

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tman
Cacti User
Posts: 97
Joined: Thu Oct 14, 2004 4:14 pm

Big problem - What's going on!

Post by tman »

I've been running the latest Cacti for a few months now on a quad-core Win2k3 host. It's been working sweet, with no problems. I use cmd.php (not cactid). Cacti is configured for 8 cmd processes.

Early this morning, at around 4:30am graphs stopped being generated. All the polling still seems to be ok (checked the logs for this), but rra's are not updating. Nothing has changed on the box for this to happen, and no, I wasn't in at 4:30 this morning :-)

Looking more closely, the php-win process never completes, yet the end of the log file says that the process has completed in ~90s or so, but doesn't report any rra's being updated. I checked permissions, and they all look ok. I checked the database consistency, and that's fine. As I said, nothing has changed that might cause this. I can see php, cmd and perl processes still running in Task Manager, when the process should have completed ages before.

I'm struggling now to get the rra's updated. Some do, some don't. Graph debug mode always says 'Ok'. I replaced all the rrdtool files (just incase something got corrupted), and cmd.php from the Cacti source.

I've got no idea what the hell happened, but it ain't happy, and now it's not working as it should.
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BSOD2600
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Posts: 12171
Joined: Sat May 08, 2004 12:44 pm
Location: USA

Post by BSOD2600 »

What php version? 5.2.1 has issues with isaspi, upgrade to 5.2.3 (might still need to replace libmysql.dll with the one from 5.2.1 since 5.2.2 it was buggy).

Turn the logging level to debug for a few cycles and manually run the poller (php <cactipath>\poller.php). Any errors?
tman
Cacti User
Posts: 97
Joined: Thu Oct 14, 2004 4:14 pm

Post by tman »

Thanks BSOD.

PHP ver is 4.4.4 (been running this ver for ages). Running with debug enabled shows nothing obvious (although I can post if necessary). All polling looks like it's working ok.

Ran the poller manually, and other than a few 'ERROR: not enough arguments' and THOLD messages, everything else was OK. The poller got to 95s then just sat there, until it hit 293s when I got the 'max execution time exceeded' error. I checked the rra's after the manual run, and about half of them updated, the rest didn't.

I'm at a loss as to what could have caused this.
tman
Cacti User
Posts: 97
Joined: Thu Oct 14, 2004 4:14 pm

Post by tman »

Tried updating php to 4.4.7 (no change), removed Zend (no change). Rebuilt poller cache (no change).

Just so you know, I'm not running IIS (to unstable in ISAPI mode), so I've been running Apache 2.x for Win32. Has been fine with no problems.

If I run the poller manually, I can see the 8 processes being spawned, then they gradually close until only one is left, and that one process never closes until the execution time is exceeded, then I get the error;

Fatal error: Maximum execution time of 293 seconds exceeded in e:\inetpub\wwwroot\cacti\lib\database.php on line 153

Right now, no RRA's are updating at all. I can see one 'php' process with an rrdtool session running when the poller starts, and that has a healthy amount of CPU time allocated, so it must be doing something, but certainly not updating RRA's.

Looking at the log file, all hosts are polling ok, and values are being returned ok, but because the poller never finishes, I don't see the last entry in the log file showing the total run time and the amount of rra's updated.
mcutting
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Posts: 1884
Joined: Mon Oct 16, 2006 5:57 am
Location: United Kingdom
Contact:

Post by mcutting »

I had the same issue a while back as this, and it was actually a corrupt database. I dropped the existing one, and restored from the backup from the night before. After doing this, the RRA's started updating again.
Cacti Version 0.8.8b
Cacti OS Ubuntu LTS
RRDTool Version RRDTool 1.4.7
Poller Information
Type SPINE 0.8.8b
tman
Cacti User
Posts: 97
Joined: Thu Oct 14, 2004 4:14 pm

Post by tman »

I'd already checked the integrity of the database, and it seems ok. No errors reported at all.

I've been working on this all day so far, methodically stepping through the problem. I disabled every device being monitored, then gradually added them back in 5 at a time, then I re-ran the poller manually from the command line. I may have found a couple of devices that *might* have been causing polling problems, but I'm still not 100% sure. These are disabled at the moment.

Basically, if I run the poller from the command line, I see the poller process windows open, and then start to close as poller.php waits on the pollers to finish. I can now successfully see all the process windows finish, and then the rrd update cycle. Odd thing is though, that the first time I do this after enabling a bunch of hosts I see messages in the output similar to;

ERROR: illegal attempt to update using time 1181187635 when last update time is 1181231136 (minimum one second step).

When the poller finishes, I get a final message;

06/08/2007 12:52:10 PM - SYSTEM STATS: Time:84.1812 Method:cmd.php Processes:8 Threads:N/A Hosts:89 HostsPerProcess:12 DataSources:2138 RRDsProcessed:3657

If I run poller.php again straight afterwards, I don't see any of the ERROR messages, but the final message now says;

06/08/2007 12:53:39 PM - SYSTEM STATS: Time:64.8726 Method:cmd.php Processes:8 Threads:N/A Hosts:89 HostsPerProcess:12 DataSources:2138 RRDsProcessed:1440

Notice that the host count is the same, but the RRDsProcessed value is completely different second time round. Infact, the second run output is correct, as there are 1440 RRD's updated.

Also, every time I run the poller, a window stays open on the screen for a few seconds, echoing the following a few times;

06/08/2007 12:58:57 PM - PCOMMAND: Poller[0] Host[104] WARNING: Recache Event Detected for Host

So, although things are getting back to normal (sort of!), I still don't know exactly what went wrong, or how to stop it happening again.
mcutting
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Posts: 1884
Joined: Mon Oct 16, 2006 5:57 am
Location: United Kingdom
Contact:

Post by mcutting »

I know you said that you didn't make any changes, but have you by any chance updated RRDTOOL.exe recently, or has this process hung ?

Also, how many script servers are you running, and how much memory is allocated in php.ini to run scripts ? The default is 8Mb - if this has not been changed, raise it to 32Mb to see if this makes any difference.

For the device that is repeatedly being recached, see if you can walk the sysUptime OID to see if it increases or not.
Cacti Version 0.8.8b
Cacti OS Ubuntu LTS
RRDTool Version RRDTool 1.4.7
Poller Information
Type SPINE 0.8.8b
tman
Cacti User
Posts: 97
Joined: Thu Oct 14, 2004 4:14 pm

Post by tman »

Thanks for the feedback.

I definately haven't updated rrdtool, probably not for over a year now. I'm still running the cygwin v1.2.12 from 12/05.

I've checked on the hosts triggering the re-cache event. They're devices that have been added recently (network switches). SysUptime walk shows the values are increasing as expected.

As for the script servers, if you mean cmd processes, then the server runs 8 (max). I'd already increased the mem count in php.ini to 64M. It's been like that for a long, long time.
Last edited by tman on Fri Jun 08, 2007 8:51 am, edited 1 time in total.
mcutting
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Posts: 1884
Joined: Mon Oct 16, 2006 5:57 am
Location: United Kingdom
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Post by mcutting »

Hmmm.....could you try lowering the amount of pollers you have for cmd.php to 2 x the number of processors. How many script servers are you running ?

Does the poller "stall", and if it does, fire up task managager, and let me know how many php.exe processes there are (I'm assuming you're running Windows).

Could you also please post a copy of your php.ini file.
Cacti Version 0.8.8b
Cacti OS Ubuntu LTS
RRDTool Version RRDTool 1.4.7
Poller Information
Type SPINE 0.8.8b
tman
Cacti User
Posts: 97
Joined: Thu Oct 14, 2004 4:14 pm

Post by tman »

mcutting wrote:Hmmm.....could you try lowering the amount of pollers you have for cmd.php to 2 x the number of processors. How many script servers are you running ?

Does the poller "stall", and if it does, fire up task managager, and let me know how many php.exe processes there are (I'm assuming you're running Windows).
Thanks, I'd just edited my previous post with extra information.

As I've said, by trial and error I've now got about 70% of the devices enabled and polling again now. I'm working on the others.

The poller process stalls, but doesn't spawn more than 8 php subprocesses (with the settings configured for 8 concurrent cmd processes).

PHP.INI

[PHP]

;;;;;;;;;;;
; WARNING ;
;;;;;;;;;;;
; This is the default settings file for new PHP installations.
; By default, PHP installs itself with a configuration suitable for
; development purposes, and *NOT* for production purposes.
; For several security-oriented considerations that should be taken
; before going online with your site, please consult php.ini-recommended
; and http://php.net/manual/en/security.php.


;;;;;;;;;;;;;;;;;;;
; About this file ;
;;;;;;;;;;;;;;;;;;;
; This file controls many aspects of PHP's behavior. In order for PHP to
; read it, it must be named 'php.ini'. PHP looks for it in the current
; working directory, in the path designated by the environment variable
; PHPRC, and in the path that was defined in compile time (in that order).
; Under Windows, the compile-time path is the Windows directory. The
; path in which the php.ini file is looked for can be overridden using
; the -c argument in command line mode.
;
; The syntax of the file is extremely simple. Whitespace and Lines
; beginning with a semicolon are silently ignored (as you probably guessed).
; Section headers (e.g. [Foo]) are also silently ignored, even though
; they might mean something in the future.
;
; Directives are specified using the following syntax:
; directive = value
; Directive names are *case sensitive* - foo=bar is different from FOO=bar.
;
; The value can be a string, a number, a PHP constant (e.g. E_ALL or M_PI), one
; of the INI constants (On, Off, True, False, Yes, No and None) or an expression
; (e.g. E_ALL & ~E_NOTICE), or a quoted string ("foo").
;
; Expressions in the INI file are limited to bitwise operators and parentheses:
; | bitwise OR
; & bitwise AND
; ~ bitwise NOT
; ! boolean NOT
;
; Boolean flags can be turned on using the values 1, On, True or Yes.
; They can be turned off using the values 0, Off, False or No.
;
; An empty string can be denoted by simply not writing anything after the equal
; sign, or by using the None keyword:
;
; foo = ; sets foo to an empty string
; foo = none ; sets foo to an empty string
; foo = "none" ; sets foo to the string 'none'
;
; If you use constants in your value, and these constants belong to a
; dynamically loaded extension (either a PHP extension or a Zend extension),
; you may only use these constants *after* the line that loads the extension.
;
; All the values in the php.ini-dist file correspond to the builtin
; defaults (that is, if no php.ini is used, or if you delete these lines,
; the builtin defaults will be identical).


;;;;;;;;;;;;;;;;;;;;
; Language Options ;
;;;;;;;;;;;;;;;;;;;;

; Enable the PHP scripting language engine under Apache.
engine = On

; Allow the <? tag. Otherwise, only <?php and <script> tags are recognized.
; NOTE: Using short tags should be avoided when developing applications or
; libraries that are meant for redistribution, or deployment on PHP
; servers which are not under your control, because short tags may not
; be supported on the target server. For portable, redistributable code,
; be sure not to use short tags.
short_open_tag = On

; Allow ASP-style <% %> tags.
asp_tags = Off

; The number of significant digits displayed in floating point numbers.
precision = 12

; Enforce year 2000 compliance (will cause problems with non-compliant browsers)
y2k_compliance = On

; Output buffering allows you to send header lines (including cookies) even
; after you send body content, at the price of slowing PHP's output layer a
; bit. You can enable output buffering during runtime by calling the output
; buffering functions. You can also enable output buffering for all files by
; setting this directive to On. If you wish to limit the size of the buffer
; to a certain size - you can use a maximum number of bytes instead of 'On', as
; a value for this directive (e.g., output_buffering=4096).
output_buffering = Off

; You can redirect all of the output of your scripts to a function. For
; example, if you set output_handler to "mb_output_handler", character
; encoding will be transparently converted to the specified encoding.
; Setting any output handler automatically turns on output buffering.
; Note: People who wrote portable scripts should not depend on this ini
; directive. Instead, explicitly set the output handler using ob_start().
; Using this ini directive may cause problems unless you know what script
; is doing.
; Note: You cannot use both "mb_output_handler" with "ob_iconv_handler"
; and you cannot use both "ob_gzhandler" and "zlib.output_compression".
;output_handler =

; Transparent output compression using the zlib library
; Valid values for this option are 'off', 'on', or a specific buffer size
; to be used for compression (default is 4KB)
; Note: Resulting chunk size may vary due to nature of compression. PHP
; outputs chunks that are few hundreds bytes each as a result of
; compression. If you prefer a larger chunk size for better
; performance, enable output_buffering in addition.
; Note: You need to use zlib.output_handler instead of the standard
; output_handler, or otherwise the output will be corrupted.
zlib.output_compression = Off

; You cannot specify additional output handlers if zlib.output_compression
; is activated here. This setting does the same as output_handler but in
; a different order.
;zlib.output_handler =

; Implicit flush tells PHP to tell the output layer to flush itself
; automatically after every output block. This is equivalent to calling the
; PHP function flush() after each and every call to print() or echo() and each
; and every HTML block. Turning this option on has serious performance
; implications and is generally recommended for debugging purposes only.
implicit_flush = Off

; The unserialize callback function will be called (with the undefined class'
; name as parameter), if the unserializer finds an undefined class
; which should be instanciated.
; A warning appears if the specified function is not defined, or if the
; function doesn't include/implement the missing class.
; So only set this entry, if you really want to implement such a
; callback-function.
unserialize_callback_func=

; When floats & doubles are serialized store serialize_precision significant
; digits after the floating point. The default value ensures that when floats
; are decoded with unserialize, the data will remain the same.
serialize_precision = 100

; Whether to enable the ability to force arguments to be passed by reference
; at function call time. This method is deprecated and is likely to be
; unsupported in future versions of PHP/Zend. The encouraged method of
; specifying which arguments should be passed by reference is in the function
; declaration. You're encouraged to try and turn this option Off and make
; sure your scripts work properly with it in order to ensure they will work
; with future versions of the language (you will receive a warning each time
; you use this feature, and the argument will be passed by value instead of by
; reference).
allow_call_time_pass_reference = On

; Safe Mode
;
safe_mode = Off

; By default, Safe Mode does a UID compare check when
; opening files. If you want to relax this to a GID compare,
; then turn on safe_mode_gid.
safe_mode_gid = Off

; When safe_mode is on, UID/GID checks are bypassed when
; including files from this directory and its subdirectories.
; (directory must also be in include_path or full path must
; be used when including)
safe_mode_include_dir =

; When safe_mode is on, only executables located in the safe_mode_exec_dir
; will be allowed to be executed via the exec family of functions.
safe_mode_exec_dir =

; Setting certain environment variables may be a potential security breach.
; This directive contains a comma-delimited list of prefixes. In Safe Mode,
; the user may only alter environment variables whose names begin with the
; prefixes supplied here. By default, users will only be able to set
; environment variables that begin with PHP_ (e.g. PHP_FOO=BAR).
;
; Note: If this directive is empty, PHP will let the user modify ANY
; environment variable!
safe_mode_allowed_env_vars = PHP_

; This directive contains a comma-delimited list of environment variables that
; the end user won't be able to change using putenv(). These variables will be
; protected even if safe_mode_allowed_env_vars is set to allow to change them.
safe_mode_protected_env_vars = LD_LIBRARY_PATH

; open_basedir, if set, limits all file operations to the defined directory
; and below. This directive makes most sense if used in a per-directory
; or per-virtualhost web server configuration file. This directive is
; *NOT* affected by whether Safe Mode is turned On or Off.
;open_basedir =

; This directive allows you to disable certain functions for security reasons.
; It receives a comma-delimited list of function names. This directive is
; *NOT* affected by whether Safe Mode is turned On or Off.
disable_functions =

; This directive allows you to disable certain classes for security reasons.
; It receives a comma-delimited list of class names. This directive is
; *NOT* affected by whether Safe Mode is turned On or Off.
disable_classes =

; Colors for Syntax Highlighting mode. Anything that's acceptable in
; <font color="??????"> would work.
;highlight.string = #DD0000
;highlight.comment = #FF9900
;highlight.keyword = #007700
;highlight.bg = #FFFFFF
;highlight.default = #0000BB
;highlight.html = #000000


;
; Misc
;
; Decides whether PHP may expose the fact that it is installed on the server
; (e.g. by adding its signature to the Web server header). It is no security
; threat in any way, but it makes it possible to determine whether you use PHP
; on your server or not.
expose_php = On


;;;;;;;;;;;;;;;;;;;
; Resource Limits ;
;;;;;;;;;;;;;;;;;;;

max_execution_time = 60 ; Maximum execution time of each script, in seconds
max_input_time = 60 ; Maximum amount of time each script may spend parsing request data
memory_limit = 64M ; Maximum amount of memory a script may consume (8MB)

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Error handling and logging ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

; error_reporting is a bit-field. Or each number up to get desired error
; reporting level
; E_ALL - All errors and warnings
; E_ERROR - fatal run-time errors
; E_WARNING - run-time warnings (non-fatal errors)
; E_PARSE - compile-time parse errors
; E_NOTICE - run-time notices (these are warnings which often result
; from a bug in your code, but it's possible that it was
; intentional (e.g., using an uninitialized variable and
; relying on the fact it's automatically initialized to an
; empty string)
; E_CORE_ERROR - fatal errors that occur during PHP's initial startup
; E_CORE_WARNING - warnings (non-fatal errors) that occur during PHP's
; initial startup
; E_COMPILE_ERROR - fatal compile-time errors
; E_COMPILE_WARNING - compile-time warnings (non-fatal errors)
; E_USER_ERROR - user-generated error message
; E_USER_WARNING - user-generated warning message
; E_USER_NOTICE - user-generated notice message
;
; Examples:
;
; - Show all errors, except for notices
;
;error_reporting = E_ALL & ~E_NOTICE
;
; - Show only errors
;
;error_reporting = E_COMPILE_ERROR|E_ERROR|E_CORE_ERROR
;
; - Show all errors except for notices
;
error_reporting = E_ALL & ~E_NOTICE

; Print out errors (as a part of the output). For production web sites,
; you're strongly encouraged to turn this feature off, and use error logging
; instead (see below). Keeping display_errors enabled on a production web site
; may reveal security information to end users, such as file paths on your Web
; server, your database schema or other information.
display_errors = On

; Even when display_errors is on, errors that occur during PHP's startup
; sequence are not displayed. It's strongly recommended to keep
; display_startup_errors off, except for when debugging.
display_startup_errors = Off

; Log errors into a log file (server-specific log, stderr, or error_log (below))
; As stated above, you're strongly advised to use error logging in place of
; error displaying on production web sites.
log_errors = Off

; Set maximum length of log_errors. In error_log information about the source is
; added. The default is 1024 and 0 allows to not apply any maximum length at all.
log_errors_max_len = 1024

; Do not log repeated messages. Repeated errors must occur in same file on same
; line until ignore_repeated_source is set true.
ignore_repeated_errors = Off

; Ignore source of message when ignoring repeated messages. When this setting
; is On you will not log errors with repeated messages from different files or
; sourcelines.
ignore_repeated_source = Off

; If this parameter is set to Off, then memory leaks will not be shown (on
; stdout or in the log). This has only effect in a debug compile, and if
; error reporting includes E_WARNING in the allowed list
report_memleaks = On

; Store the last error/warning message in $php_errormsg (boolean).
track_errors = Off

; Disable the inclusion of HTML tags in error messages.
;html_errors = Off

; If html_errors is set On PHP produces clickable error messages that direct
; to a page describing the error or function causing the error in detail.
; You can download a copy of the PHP manual from http://www.php.net/docs.php
; and change docref_root to the base URL of your local copy including the
; leading '/'. You must also specify the file extension being used including
; the dot.
;docref_root = "/phpmanual/"
;docref_ext = .html

; String to output before an error message.
;error_prepend_string = "<font color=ff0000>"

; String to output after an error message.
;error_append_string = "</font>"

; Log errors to specified file.
;error_log = filename

; Log errors to syslog (Event Log on NT, not valid in Windows 95).
;error_log = syslog


;;;;;;;;;;;;;;;;;
; Data Handling ;
;;;;;;;;;;;;;;;;;
;
; Note - track_vars is ALWAYS enabled as of PHP 4.0.3

; The separator used in PHP generated URLs to separate arguments.
; Default is "&".
;arg_separator.output = "&"

; List of separator(s) used by PHP to parse input URLs into variables.
; Default is "&".
; NOTE: Every character in this directive is considered as separator!
;arg_separator.input = ";&"

; This directive describes the order in which PHP registers GET, POST, Cookie,
; Environment and Built-in variables (G, P, C, E & S respectively, often
; referred to as EGPCS or GPC). Registration is done from left to right, newer
; values override older values.
variables_order = "EGPCS"

; Whether or not to register the EGPCS variables as global variables. You may
; want to turn this off if you don't want to clutter your scripts' global scope
; with user data. This makes most sense when coupled with track_vars - in which
; case you can access all of the GPC variables through the $HTTP_*_VARS[],
; variables.
;
; You should do your best to write your scripts so that they do not require
; register_globals to be on; Using form variables as globals can easily lead
; to possible security problems, if the code is not very well thought of.
register_globals = Off

; This directive tells PHP whether to declare the argv&argc variables (that
; would contain the GET information). If you don't use these variables, you
; should turn it off for increased performance.
register_argc_argv = On

; Maximum size of POST data that PHP will accept.
post_max_size = 16M

; This directive is deprecated. Use variables_order instead.
gpc_order = "GPC"

; Magic quotes
;

; Magic quotes for incoming GET/POST/Cookie data.
magic_quotes_gpc = On

; Magic quotes for runtime-generated data, e.g. data from SQL, from exec(), etc.
magic_quotes_runtime = Off

; Use Sybase-style magic quotes (escape ' with '' instead of \').
magic_quotes_sybase = Off

; Automatically add files before or after any PHP document.
auto_prepend_file =
auto_append_file =

; As of 4.0b4, PHP always outputs a character encoding by default in
; the Content-type: header. To disable sending of the charset, simply
; set it to be empty.
;
; PHP's built-in default is text/html
default_mimetype = "text/html"
;default_charset = "iso-8859-1"

; Always populate the $HTTP_RAW_POST_DATA variable.
;always_populate_raw_post_data = On


;;;;;;;;;;;;;;;;;;;;;;;;;
; Paths and Directories ;
;;;;;;;;;;;;;;;;;;;;;;;;;

; UNIX: "/path1:/path2"
;include_path = ".:/php/includes"
;
; Windows: "\path1;\path2"
;include_path = ".;c:\php\includes"

; The root of the PHP pages, used only if nonempty.
; if PHP was not compiled with FORCE_REDIRECT, you SHOULD set doc_root
; if you are running php as a CGI under any web server (other than IIS)
; see documentation for security issues. The alternate is to use the
; cgi.force_redirect configuration below
doc_root =

; The directory under which PHP opens the script using /~username used only
; if nonempty.
user_dir =

; Directory in which the loadable extensions (modules) reside.
extension_dir = "c:\php\extensions"

; Whether or not to enable the dl() function. The dl() function does NOT work
; properly in multithreaded servers, such as IIS or Zeus, and is automatically
; disabled on them.
enable_dl = On

; cgi.force_redirect is necessary to provide security running PHP as a CGI under
; most web servers. Left undefined, PHP turns this on by default. You can
; turn it off here AT YOUR OWN RISK
; **You CAN safely turn this off for IIS, in fact, you MUST.**
cgi.force_redirect = 0

; if cgi.nph is enabled it will force cgi to always sent Status: 200 with
; every request.
; cgi.nph = 1

; if cgi.force_redirect is turned on, and you are not running under Apache or Netscape
; (iPlanet) web servers, you MAY need to set an environment variable name that PHP
; will look for to know it is OK to continue execution. Setting this variable MAY
; cause security issues, KNOW WHAT YOU ARE DOING FIRST.
; cgi.redirect_status_env = ;

; cgi.fix_pathinfo provides *real* PATH_INFO/PATH_TRANSLATED support for CGI. PHP's
; previous behaviour was to set PATH_TRANSLATED to SCRIPT_FILENAME, and to not grok
; what PATH_INFO is. For more information on PATH_INFO, see the cgi specs. Setting
; this to 1 will cause PHP CGI to fix it's paths to conform to the spec. A setting
; of zero causes PHP to behave as before. Default is zero. You should fix your scripts
; to use SCRIPT_FILENAME rather than PATH_TRANSLATED.
; cgi.fix_pathinfo=0

; FastCGI under IIS (on WINNT based OS) supports the ability to impersonate
; security tokens of the calling client. This allows IIS to define the
; security context that the request runs under. mod_fastcgi under Apache
; does not currently support this feature (03/17/2002)
; Set to 1 if running under IIS. Default is zero.
; fastcgi.impersonate = 1;

; cgi.rfc2616_headers configuration option tells PHP what type of headers to
; use when sending HTTP response code. If it's set 0 PHP sends Status: header that
; is supported by Apache. When this option is set to 1 PHP will send
; RFC2616 compliant header.
; Default is zero.
;cgi.rfc2616_headers = 0


;;;;;;;;;;;;;;;;
; File Uploads ;
;;;;;;;;;;;;;;;;

; Whether to allow HTTP file uploads.
file_uploads = On

; Temporary directory for HTTP uploaded files (will use system default if not
; specified).
;upload_tmp_dir =

; Maximum allowed size for uploaded files.
upload_max_filesize = 2M


;;;;;;;;;;;;;;;;;;
; Fopen wrappers ;
;;;;;;;;;;;;;;;;;;

; Whether to allow the treatment of URLs (like http:// or ftp://) as files.
allow_url_fopen = On

; Define the anonymous ftp password (your email address)
;from="john@doe.com"

; Define the User-Agent string
; user_agent="PHP"

; Default timeout for socket based streams (seconds)
default_socket_timeout = 120

; If your scripts have to deal with files from Macintosh systems,
; or you are running on a Mac and need to deal with files from
; unix or win32 systems, setting this flag will cause PHP to
; automatically detect the EOL character in those files so that
; fgets() and file() will work regardless of the source of the file.
; auto_detect_line_endings = Off


;;;;;;;;;;;;;;;;;;;;;;
; Dynamic Extensions ;
;;;;;;;;;;;;;;;;;;;;;;
;
; If you wish to have an extension loaded automatically, use the following
; syntax:
;
; extension=modulename.extension
;
; For example, on Windows:
;
; extension=msql.dll
;
; ... or under UNIX:
;
; extension=msql.so
;
; Note that it should be the name of the module only; no directory information
; needs to go here. Specify the location of the extension with the
; extension_dir directive above.


;Windows Extensions
;Note that MySQL and ODBC support is now built in, so no dll is needed for it.
;
;extension=php_bz2.dll
;extension=php_cpdf.dll
;extension=php_crack.dll
;extension=php_curl.dll
;extension=php_db.dll
;extension=php_dba.dll
;extension=php_dbase.dll
;extension=php_dbx.dll
;extension=php_domxml.dll
;extension=php_fdf.dll
;extension=php_filepro.dll
extension=php_gd2.dll
;extension=php_gettext.dll
;extension=php_hyperwave.dll
;extension=php_iconv.dll
;extension=php_ifx.dll
;extension=php_iisfunc.dll
;extension=php_imap.dll
;extension=php_interbase.dll
;extension=php_java.dll
;extension=php_ldap.dll
extension=php_mbstring.dll
extension=php_exif.dll
;extension=php_mcrypt.dll
;extension=php_mhash.dll
;extension=php_mime_magic.dll
;extension=php_ming.dll
;extension=php_mssql.dll
extension=php_msql.dll
;extension=php_oci8.dll
;extension=php_openssl.dll
;extension=php_oracle.dll
;extension=php_pdf.dll
;extension=php_pgsql.dll
;extension=php_printer.dll
;extension=php_shmop.dll
extension=php_snmp.dll
extension=php_sockets.dll
;extension=php_sybase_ct.dll
;extension=php_w32api.dll
;extension=php_xmlrpc.dll
;extension=php_xslt.dll
;extension=php_yaz.dll
;extension=php_zip.dll


;;;;;;;;;;;;;;;;;;;
; Module Settings ;
;;;;;;;;;;;;;;;;;;;

[Syslog]
; Whether or not to define the various syslog variables (e.g. $LOG_PID,
; $LOG_CRON, etc.). Turning it off is a good idea performance-wise. In
; runtime, you can define these variables by calling define_syslog_variables().
define_syslog_variables = Off

[mail function]
; For Win32 only.
SMTP = smtp.comm.ad.roke.co.uk
smtp_port = 25

; For Win32 only.
sendmail_from = cacti@buffalo

; For Unix only. You may supply arguments as well (default: "sendmail -t -i").
;sendmail_path =

[Java]
;java.class.path = .\php_java.jar
;java.home = c:\jdk
;java.library = c:\jdk\jre\bin\hotspot\jvm.dll
;java.library.path = .\

[SQL]
sql.safe_mode = Off

[ODBC]
;odbc.default_db = Not yet implemented
;odbc.default_user = Not yet implemented
;odbc.default_pw = Not yet implemented

; Allow or prevent persistent links.
odbc.allow_persistent = On

; Check that a connection is still valid before reuse.
odbc.check_persistent = On

; Maximum number of persistent links. -1 means no limit.
odbc.max_persistent = -1

; Maximum number of links (persistent + non-persistent). -1 means no limit.
odbc.max_links = -1

; Handling of LONG fields. Returns number of bytes to variables. 0 means
; passthru.
odbc.defaultlrl = 4096

; Handling of binary data. 0 means passthru, 1 return as is, 2 convert to char.
; See the documentation on odbc_binmode and odbc_longreadlen for an explanation
; of uodbc.defaultlrl and uodbc.defaultbinmode
odbc.defaultbinmode = 1

[MySQL]
; Allow or prevent persistent links.
mysql.allow_persistent = On

; Maximum number of persistent links. -1 means no limit.
mysql.max_persistent = -1

; Maximum number of links (persistent + non-persistent). -1 means no limit.
mysql.max_links = -1

; Default port number for mysql_connect(). If unset, mysql_connect() will use
; the $MYSQL_TCP_PORT or the mysql-tcp entry in /etc/services or the
; compile-time value defined MYSQL_PORT (in that order). Win32 will only look
; at MYSQL_PORT.
mysql.default_port =

; Default socket name for local MySQL connects. If empty, uses the built-in
; MySQL defaults.
mysql.default_socket =

; Default host for mysql_connect() (doesn't apply in safe mode).
mysql.default_host =

; Default user for mysql_connect() (doesn't apply in safe mode).
mysql.default_user =

; Default password for mysql_connect() (doesn't apply in safe mode).
; Note that this is generally a *bad* idea to store passwords in this file.
; *Any* user with PHP access can run 'echo get_cfg_var("mysql.default_password")
; and reveal this password! And of course, any users with read access to this
; file will be able to reveal the password as well.
mysql.default_password =

; Maximum time (in seconds) for connect timeout. -1 means no limit
mysql.connect_timeout = 60

; Trace mode. When trace_mode is active (=On), warnings for table/index scans and
; SQL-Errors will be displayed.
mysql.trace_mode = Off

[mSQL]
; Allow or prevent persistent links.
msql.allow_persistent = On

; Maximum number of persistent links. -1 means no limit.
msql.max_persistent = -1

; Maximum number of links (persistent+non persistent). -1 means no limit.
msql.max_links = -1

[PostgresSQL]
; Allow or prevent persistent links.
pgsql.allow_persistent = On

; Detect broken persistent links always with pg_pconnect(). Need a little overhead.
pgsql.auto_reset_persistent = Off

; Maximum number of persistent links. -1 means no limit.
pgsql.max_persistent = -1

; Maximum number of links (persistent+non persistent). -1 means no limit.
pgsql.max_links = -1

; Ignore PostgreSQL backends Notice message or not.
pgsql.ignore_notice = 0

; Log PostgreSQL backends Noitce message or not.
; Unless pgsql.ignore_notice=0, module cannot log notice message.
pgsql.log_notice = 0

[Sybase]
; Allow or prevent persistent links.
sybase.allow_persistent = On

; Maximum number of persistent links. -1 means no limit.
sybase.max_persistent = -1

; Maximum number of links (persistent + non-persistent). -1 means no limit.
sybase.max_links = -1

;sybase.interface_file = "/usr/sybase/interfaces"

; Minimum error severity to display.
sybase.min_error_severity = 10

; Minimum message severity to display.
sybase.min_message_severity = 10

; Compatability mode with old versions of PHP 3.0.
; If on, this will cause PHP to automatically assign types to results according
; to their Sybase type, instead of treating them all as strings. This
; compatibility mode will probably not stay around forever, so try applying
; whatever necessary changes to your code, and turn it off.
sybase.compatability_mode = Off

[Sybase-CT]
; Allow or prevent persistent links.
sybct.allow_persistent = On

; Maximum number of persistent links. -1 means no limit.
sybct.max_persistent = -1

; Maximum number of links (persistent + non-persistent). -1 means no limit.
sybct.max_links = -1

; Minimum server message severity to display.
sybct.min_server_severity = 10

; Minimum client message severity to display.
sybct.min_client_severity = 10

[dbx]
; returned column names can be converted for compatibility reasons
; possible values for dbx.colnames_case are
; "unchanged" (default, if not set)
; "lowercase"
; "uppercase"
; the recommended default is either upper- or lowercase, but
; unchanged is currently set for backwards compatibility
dbx.colnames_case = "unchanged"

[bcmath]
; Number of decimal digits for all bcmath functions.
bcmath.scale = 0

[browscap]
;browscap = extra/browscap.ini

[Informix]
; Default host for ifx_connect() (doesn't apply in safe mode).
ifx.default_host =

; Default user for ifx_connect() (doesn't apply in safe mode).
ifx.default_user =

; Default password for ifx_connect() (doesn't apply in safe mode).
ifx.default_password =

; Allow or prevent persistent links.
ifx.allow_persistent = On

; Maximum number of persistent links. -1 means no limit.
ifx.max_persistent = -1

; Maximum number of links (persistent + non-persistent). -1 means no limit.
ifx.max_links = -1

; If on, select statements return the contents of a text blob instead of its id.
ifx.textasvarchar = 0

; If on, select statements return the contents of a byte blob instead of its id.
ifx.byteasvarchar = 0

; Trailing blanks are stripped from fixed-length char columns. May help the
; life of Informix SE users.
ifx.charasvarchar = 0

; If on, the contents of text and byte blobs are dumped to a file instead of
; keeping them in memory.
ifx.blobinfile = 0

; NULL's are returned as empty strings, unless this is set to 1. In that case,
; NULL's are returned as string 'NULL'.
ifx.nullformat = 0

[Session]
; Handler used to store/retrieve data.
session.save_handler = files

; Argument passed to save_handler. In the case of files, this is the path
; where data files are stored. Note: Windows users have to change this
; variable in order to use PHP's session functions.
; As of PHP 4.0.1, you can define the path as:
; session.save_path = "N;/path"
; where N is an integer. Instead of storing all the session files in
; /path, what this will do is use subdirectories N-levels deep, and
; store the session data in those directories. This is useful if you
; or your OS have problems with lots of files in one directory, and is
; a more efficient layout for servers that handle lots of sessions.
; NOTE 1: PHP will not create this directory structure automatically.
; You can use the script in the ext/session dir for that purpose.
; NOTE 2: See the section on garbage collection below if you choose to
; use subdirectories for session storage
;session.save_path = c:/temp

; Whether to use cookies.
session.use_cookies = 1

; This option enables administrators to make their users invulnerable to
; attacks which involve passing session ids in URLs; defaults to 0.
; session.use_only_cookies = 1

; Name of the session (used as cookie name).
session.name = PHPSESSID

; Initialize session on request startup.
session.auto_start = 0

; Lifetime in seconds of cookie or, if 0, until browser is restarted.
session.cookie_lifetime = 0

; The path for which the cookie is valid.
session.cookie_path = /

; The domain for which the cookie is valid.
session.cookie_domain =

; Handler used to serialize data. php is the standard serializer of PHP.
session.serialize_handler = php

; Define the probability that the 'garbage collection' process is started
; on every session initialization.
; The probability is calculated by using gc_probability/gc_divisor,
; e.g. 1/100 means there is a 1% chance that the GC process starts
; on each request.

session.gc_probability = 1
session.gc_divisor = 100

; After this number of seconds, stored data will be seen as 'garbage' and
; cleaned up by the garbage collection process.
session.gc_maxlifetime = 1440

; NOTE: If you are using the subdirectory option for storing session files
; (see session.save_path above), then garbage collection does *not*
; happen automatically. You will need to do your own garbage
; collection through a shell script, cron entry, or some other method.
; For example, the following script would is the equivalent of
; setting session.gc_maxlifetime to 1440 (1440 seconds = 24 minutes):
; cd /path/to/sessions; find -cmin +24 | xargs rm

; PHP 4.2 and less have an undocumented feature/bug that allows you to
; to initialize a session variable in the global scope, albeit register_globals
; is disabled. PHP 4.3 and later will warn you, if this feature is used.
; You can disable the feature and the warning separately. At this time,
; the warning is only displayed, if bug_compat_42 is enabled.

session.bug_compat_42 = 1
session.bug_compat_warn = 1

; Check HTTP Referer to invalidate externally stored URLs containing ids.
; HTTP_REFERER has to contain this substring for the session to be
; considered as valid.
session.referer_check =

; How many bytes to read from the file.
session.entropy_length = 0

; Specified here to create the session id.
session.entropy_file =

;session.entropy_length = 16

;session.entropy_file = /dev/urandom

; Set to {nocache,private,public,} to determine HTTP caching aspects
; or leave this empty to avoid sending anti-caching headers.
session.cache_limiter = nocache

; Document expires after n minutes.
session.cache_expire = 180

; trans sid support is disabled by default.
; Use of trans sid may risk your users security.
; Use this option with caution.
; - User may send URL contains active session ID
; to other person via. email/irc/etc.
; - URL that contains active session ID may be stored
; in publically accessible computer.
; - User may access your site with the same session ID
; always using URL stored in browser's history or bookmarks.
session.use_trans_sid = 0

; The URL rewriter will look for URLs in a defined set of HTML tags.
; form/fieldset are special; if you include them here, the rewriter will
; add a hidden <input> field with the info which is otherwise appended
; to URLs. If you want XHTML conformity, remove the form entry.
; Note that all valid entries require a "=", even if no value follows.
url_rewriter.tags = "a=href,area=href,frame=src,input=src,form=,fieldset="

[MSSQL]
; Allow or prevent persistent links.
mssql.allow_persistent = On

; Maximum number of persistent links. -1 means no limit.
mssql.max_persistent = -1

; Maximum number of links (persistent+non persistent). -1 means no limit.
mssql.max_links = -1

; Minimum error severity to display.
mssql.min_error_severity = 10

; Minimum message severity to display.
mssql.min_message_severity = 10

; Compatability mode with old versions of PHP 3.0.
mssql.compatability_mode = Off

; Connect timeout
;mssql.connect_timeout = 5

; Query timeout
;mssql.timeout = 60

; Valid range 0 - 2147483647. Default = 4096.
;mssql.textlimit = 4096

; Valid range 0 - 2147483647. Default = 4096.
;mssql.textsize = 4096

; Limits the number of records in each batch. 0 = all records in one batch.
;mssql.batchsize = 0

; Specify how datetime and datetim4 columns are returned
; On => Returns data converted to SQL server settings
; Off => Returns values as YYYY-MM-DD hh:mm:ss
;mssql.datetimeconvert = On

; Use NT authentication when connecting to the server
mssql.secure_connection = Off

; Specify max number of processes. Default = 25
;mssql.max_procs = 25

[Assertion]
; Assert(expr); active by default.
;assert.active = On

; Issue a PHP warning for each failed assertion.
;assert.warning = On

; Don't bail out by default.
;assert.bail = Off

; User-function to be called if an assertion fails.
;assert.callback = 0

; Eval the expression with current error_reporting(). Set to true if you want
; error_reporting(0) around the eval().
;assert.quiet_eval = 0

[Ingres II]
; Allow or prevent persistent links.
ingres.allow_persistent = On

; Maximum number of persistent links. -1 means no limit.
ingres.max_persistent = -1

; Maximum number of links, including persistents. -1 means no limit.
ingres.max_links = -1

; Default database (format: [node_id::]dbname[/srv_class]).
ingres.default_database =

; Default user.
ingres.default_user =

; Default password.
ingres.default_password =

[Verisign Payflow Pro]
; Default Payflow Pro server.
pfpro.defaulthost = "test-payflow.verisign.com"

; Default port to connect to.
pfpro.defaultport = 443

; Default timeout in seconds.
pfpro.defaulttimeout = 30

; Default proxy IP address (if required).
;pfpro.proxyaddress =

; Default proxy port.
;pfpro.proxyport =

; Default proxy logon.
;pfpro.proxylogon =

; Default proxy password.
;pfpro.proxypassword =

[com]
; path to a file containing GUIDs, IIDs or filenames of files with TypeLibs
;com.typelib_file =
; allow Distributed-COM calls
;com.allow_dcom = true
; autoregister constants of a components typlib on com_load()
;com.autoregister_typelib = true
; register constants casesensitive
;com.autoregister_casesensitive = false
; show warnings on duplicate constat registrations
;com.autoregister_verbose = true

[Printer]
;printer.default_printer = ""

[mbstring]
; language for internal character representation.
;mbstring.language = Japanese

; internal/script encoding.
; Some encoding cannot work as internal encoding.
; (e.g. SJIS, BIG5, ISO-2022-*)
;mbstring.internal_encoding = EUC-JP

; http input encoding.
;mbstring.http_input = auto

; http output encoding. mb_output_handler must be
; registered as output buffer to function
;mbstring.http_output = SJIS

; enable automatic encoding translation accoding to
; mbstring.internal_encoding setting. Input chars are
; converted to internal encoding by setting this to On.
; Note: Do _not_ use automatic encoding translation for
; portable libs/applications.
;mbstring.encoding_translation = Off

; automatic encoding detection order.
; auto means
;mbstring.detect_order = auto

; substitute_character used when character cannot be converted
; one from another
;mbstring.substitute_character = none;

; overload(replace) single byte functions by mbstring functions.
; mail(), ereg(), etc are overloaded by mb_send_mail(), mb_ereg(),
; etc. Possible values are 0,1,2,4 or combination of them.
; For example, 7 for overload everything.
; 0: No overload
; 1: Overload mail() function
; 2: Overload str*() functions
; 4: Overload ereg*() functions
;mbstring.func_overload = 0

[FrontBase]
;fbsql.allow_persistent = On
;fbsql.autocommit = On
;fbsql.default_database =
;fbsql.default_database_password =
;fbsql.default_host =
;fbsql.default_password =
;fbsql.default_user = "_SYSTEM"
;fbsql.generate_warnings = Off
;fbsql.max_connections = 128
;fbsql.max_links = 128
;fbsql.max_persistent = -1
;fbsql.max_results = 128
;fbsql.batchSize = 1000

[Crack]
; Modify the setting below to match the directory location of the cracklib
; dictionary files. Include the base filename, but not the file extension.
; crack.default_dictionary = "c:\php\lib\cracklib_dict"

[exif]
; Exif UNICODE user comments are handled as UCS-2BE/UCS-2LE and JIS as JIS.
; With mbstring support this will automatically be converted into the encoding
; given by corresponding encode setting. When empty mbstring.internal_encoding
; is used. For the decode settings you can distinguish between motorola and
; intel byte order. A decode setting cannot be empty.
;exif.encode_unicode = ISO-8859-15
;exif.decode_unicode_motorola = UCS-2BE
;exif.decode_unicode_intel = UCS-2LE
;exif.encode_jis =
;exif.decode_jis_motorola = JIS
;exif.decode_jis_intel = JIS

; Local Variables:
; tab-width: 4
; End:

cgi.force_redirect = 0

file_uploads = On

[Zend]
;zend_extension_manager.optimizer_ts="C:\Program Files\Zend\ZendOptimizer-3.2.6\lib\Optimizer-3.2.6"
;zend_extension_ts="C:\Program Files\Zend\ZendOptimizer-3.2.6\lib\ZendExtensionManager.dll"
;zend_optimizer.optimization_level=15
mcutting
Cacti Guru User
Posts: 1884
Joined: Mon Oct 16, 2006 5:57 am
Location: United Kingdom
Contact:

Post by mcutting »

Nothing untoward in the php.ini file. Do you have the MIBS=ALL setting in your environment variables, and is the MIBDIRS path correct ?
Cacti Version 0.8.8b
Cacti OS Ubuntu LTS
RRDTool Version RRDTool 1.4.7
Poller Information
Type SPINE 0.8.8b
User avatar
TheWitness
Developer
Posts: 17007
Joined: Tue May 14, 2002 5:08 pm
Location: MI, USA
Contact:

Post by TheWitness »

A couple observations for me from reviewing this post:

1) If you are running cmd.php and scripts, and they don't have their own timeouts, they can hose completely your polling if they don't timeout.
2) You illegal update is/was likely caused by a time change on the server, or multiple pollers. However, the timestamp that I saw would indicate that somehow the servers time changed. This can be devistating to a RRD based system. So play close attention to that.
3) I set the PHP memory higher than 32mbytes, to more like 128mbytes. Who can't afford that these days.

If case 2 sounds familiar, all graphing would be restored after you have eclipsed that time period.

TheWitness
True understanding begins only when we realize how little we truly understand...

Life is an adventure, let yours begin with Cacti!

Author of dozens of Cacti plugins and customization's. Advocate of LAMP, MariaDB, IBM Spectrum LSF and the world of batch. Creator of IBM Spectrum RTM, author of quite a bit of unpublished work and most of Cacti's bugs.
_________________
Official Cacti Documentation
GitHub Repository with Supported Plugins
Percona Device Packages (no support)
Interesting Device Packages


For those wondering, I'm still here, but lost in the shadows. Yearning for less bugs. Who want's a Cacti 1.3/2.0? Streams anyone?
tman
Cacti User
Posts: 97
Joined: Thu Oct 14, 2004 4:14 pm

Post by tman »

mcutting wrote:Nothing untoward in the php.ini file. Do you have the MIBS=ALL setting in your environment variables, and is the MIBDIRS path correct
MIBS=ALL was not set (but is now)
MIBDIRS=c:\php\mibs;c:\net-snmp\share\snmp\mibs
thewitness wrote:1) If you are running cmd.php and scripts, and they don't have their own timeouts, they can hose completely your polling if they don't timeout.
2) You illegal update is/was likely caused by a time change on the server, or multiple pollers. However, the timestamp that I saw would indicate that somehow the servers time changed. This can be devistating to a RRD based system. So play close attention to that.
3) I set the PHP memory higher than 32mbytes, to more like 128mbytes. Who can't afford that these days.
I checked into your idea about a time issue, and I think there was a problem around the time everything went haywire. Another Windows machine on the network suddenly became the preferred time server, which although didn't cause the Cacti server to change time, caused it to believe it's time source wasn't trusted, and stopped syncing. If there was a small change in time during a poll (<1s), is this enough to cause problems like this?

I've now set PHP memory to 128M. The Cacti server has 2Gb, so should be enough.
User avatar
TheWitness
Developer
Posts: 17007
Joined: Tue May 14, 2002 5:08 pm
Location: MI, USA
Contact:

Post by TheWitness »

Edit your php.ini file
True understanding begins only when we realize how little we truly understand...

Life is an adventure, let yours begin with Cacti!

Author of dozens of Cacti plugins and customization's. Advocate of LAMP, MariaDB, IBM Spectrum LSF and the world of batch. Creator of IBM Spectrum RTM, author of quite a bit of unpublished work and most of Cacti's bugs.
_________________
Official Cacti Documentation
GitHub Repository with Supported Plugins
Percona Device Packages (no support)
Interesting Device Packages


For those wondering, I'm still here, but lost in the shadows. Yearning for less bugs. Who want's a Cacti 1.3/2.0? Streams anyone?
Cain
Posts: 16
Joined: Wed Sep 22, 2004 12:05 pm
Location: Cleveland, OH

Post by Cain »

I am having a similar issue. I was out of town last week, so no one was touching the cacti server. Last Thursday morning around 5:45 am the rrd files stopped being updated. The poller is still running normally every 5 minutes but no data is being updated in the graphs. I have used Cacti for several years now at different companies. I have never run into this before and am curiuos what else I can check. I am running cacti-0.8.6j-1 on Centos 4.4., php version 5.0.4, rrdtool version 1.2.15.

It believe we may have had a DNS issue that day but it cleared up soon after. Could that have caused the database to become corrupt? Or there a way to verify if the database is clean?

I appreciate your help. I am at a loss.

Matthew
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