GAPS in some Graphs but others not

[jhariti]

Hello everybody,
I have a serious problem with my cacti it's seems to be I have a delay or polling issue for some graphs which contain many gaps.
See below snapshot. How to solve this issue.
Thanks in advance for your help & advise.

[Jason.S]

What is the load on the server? I had a problem somewhat like that.

[jhariti]

At this point (HW) I have no problem

top - 17:09:27 up 2 days, 1:19, 2 users, load average: 0.01, 0.14, 0.15
Tasks: 216 total, 1 running, 215 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.3%us, 0.2%sy, 0.0%ni, 99.5%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 8177308k total, 2646428k used, 5530880k free, 267112k buffers
Swap: 10223608k total, 0k used, 10223608k free, 1788276k cached

[root@rptsrv ~]# uptime
17:09:49 up 2 days, 1:19, 2 users, load average: 0.00, 0.13, 0.15
[root@rptsrv ~]#

Cacti Version - 0.8.7e
Plugin Architecture - 2.6
Poller Type - CMD.php
Server Info - Linux 2.6.18-164.9.1.el5
Web Server - Apache/2.2.3 (CentOS)
PHP - 5.1.6
PHP Extensions - libxml, xml, wddx, tokenizer, sysvshm, sysvsem, sysvmsg, standard, SimpleXML, sockets, SPL, shmop, session, Reflection, pspell, posix, mime_magic, iconv, hash, gmp, gettext, ftp, exif, date, curl, ctype, calendar, bz2, zlib, pcre, openssl, apache2handler, SourceGuardian, dbase, gd, ldap, mbstring, mysql, mysqli, odbc, PDO, pdo_mysql, PDO_ODBC, pdo_pgsql, pdo_sqlite, pgsql, snmp
MySQL - 5.0.77
RRDTool - 1.4.2
SNMP - 5.3.2.2
Plugins

• Global Plugin Settings (settings - v0.5)
  Cacti Log View (CLog - v1.3)
  Data Sources Statistics (DSStats - v1.1)
  FlowView (flowview - v0.6)
  RRD File Cleaner (RRD Cleaner - v0.38)
  SuperLinks (superlinks - v0.
  Create Aggregate Graphs (aggregate - v0.71)
  Thresholds (thold - v0.4.1)
  Cacti-ReportIt (reportit - v0.7.1)
  Host Info (hostinfo - v0.2)
  NTop Viewer (ntop - v0.1)
  Cycle Graphs (Cycle Graphs - v0.7)
  SSL Redirector (ssl - v0.1)
  Send Graphs via EMail (nectar - v0.1)
  Realtime Graph Viewer (realtime - v0.4)
  Watermark (watermark - v0.1)
  Update Checker (update - v0.4)
  NMID CreatePDF Plugin (nmidCreatePDF - v0.7)
  NMID WebService Plugin (nmidWebService - v0.3.9a U2)
  QuickTree (quicktree - v0.1)
  Notices (Notices - v0.2c)
  Automate Cacti Tasks (autom8 - v0.31)
  WMI Query (wmi - v0.1)
  Network Tools (tools - v0.3)
  Data Sources Statistics (DSStats - v1.1)
  Nagios plugin for Cacti (npc - v2.0.4)

[gandalf]

Please see 2nd link of my sig for debugging. E.g. an SNMP timeout problem may cause such a behaviour
R.

[jhariti]

I have no snmp time out in my cacti.log file.
Because of for another devices cacti can populate the same type of graphs correctly. (see below an example).

Another point my "memory_limit " at php.ini is set to 16M I want to increase it to 128M but I don't know the real impact at graphs and cacti functionality.

Message that I receive from:
Console -> Utilities -> Technical Support -> memory_limit = 16M

It is highly suggested that you alter you php.ini memory_limit to 72M or higher. This suggested memory value is calculated based on the number of data source present and is only to be used as a suggestion, actual values may vary system to system based on requirements.

Thanks.

[Howie]

I have no snmp time out in my cacti.log file.
Because of for another devices cacti can populate the same type of graphs correctly. (see below an example).

Another point my "memory_limit " at php.ini is set to 16M I want to increase it to 128M but I don't know the real impact at graphs and cacti functionality.

Since you seem t have 5G of unused RAM, it's unlikely to have a negative impact.

[jhariti]

Hello Everybody,

Now my "memory_limit" at php.ini has been adapted or increased to 128M.
But still have an error regarding the RRDTool version:
"ERROR: Installed RRDTool version does not match configured version.
Please visit the Configuration Settings and select the correct RRDTool Utility Version."

[root@rptsrv rra]# which rrdtool
/opt/rrdtool-1.4.2/bin/rrdtool
[root@rptsrv rra]#


My RRDTool installed version is 1.4.2 but at -> Console -> Cacti Settings -> Required Tool Versions -> RRDTool Utility Version : I can choose only RRDTool 1.0.x or RRDTool 1.2.x or RRDTool 1.3.x not RRDTool 1.4.x. How can I fix this issue.

Thanks in advance

[jhariti]

-> Console -> Cacti Settings -> Required Tool Versions -> RRDTool Utility Version :

[jhariti]

[1] I make some changes at CACTI SETTINGS:
=> Console -> Cacti Settings -> Poller:

Maximum Concurrent Poller Processes= 1 -> 10
Maximum Threads per Process= 1 -> 20
Number of PHP Script Servers=1
Script and Script Server Timeout Value= 25 -> 60
The Maximum SNMP OID's Per SNMP Get Request= 10 -> 15

[2] Now I saw that my CACTI consume more memory (RAM) and no more practically available memory:



IS MY POLLER SETTING CORRECT ? or I need to adapted it ?

top - 17:32:56 up 3 days, 1:43, 1 user, load average: 0.09, 0.17, 0.21
Tasks: 239 total, 1 running, 238 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0%us, 0.0%sy, 0.0%ni, 99.9%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 8177308k total, 7906780k used, 270528k free, 274340k buffers
Swap: 10223608k total, 0k used, 10223608k free, 6957732k cached

[gandalf]

My RRDTool installed version is 1.4.2 but at -> Console -> Cacti Settings -> Required Tool Versions -> RRDTool Utility Version : I can choose only RRDTool 1.0.x or RRDTool 1.2.x or RRDTool 1.3.x not RRDTool 1.4.x. How can I fix this issue.

Currently, there is no explicit 1.4.x support. This will be part of 088. Use 1.3.x settings until then (it will not support 1.4.x features, of course)
R.

[gandalf]

[1] I make some changes at CACTI SETTINGS:
=> Console -> Cacti Settings -> Poller:

Maximum Concurrent Poller Processes= 1 -> 10
Maximum Threads per Process= 1 -> 20
Number of PHP Script Servers=1
Script and Script Server Timeout Value= 25 -> 60
The Maximum SNMP OID's Per SNMP Get Request= 10 -> 15

[2] Now I saw that my CACTI consume more memory (RAM) and no more practically available memory:



IS MY POLLER SETTING CORRECT ? or I need to adapted it ?

top - 17:32:56 up 3 days, 1:43, 1 user, load average: 0.09, 0.17, 0.21
Tasks: 239 total, 1 running, 238 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0%us, 0.0%sy, 0.0%ni, 99.9%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 8177308k total, 7906780k used, 270528k free, 274340k buffers
Swap: 10223608k total, 0k used, 10223608k free, 6957732k cached

When using spine, recommended settings are
- processes: 1-2 times the number of available cores
- threads: 10-15
These are rough values to strat from
R.

[meralias]

[1]

[2] Now I saw that my CACTI consume more memory (RAM) and no more practically available memory:


IS MY POLLER SETTING CORRECT ? or I need to adapted it ?

top - 17:32:56 up 3 days, 1:43, 1 user, load average: 0.09, 0.17, 0.21
Tasks: 239 total, 1 running, 238 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0%us, 0.0%sy, 0.0%ni, 99.9%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 8177308k total, 7906780k used, 270528k free, 274340k buffers
Swap: 10223608k total, 0k used, 10223608k free, 6957732k cached

Actually, your system has a large amount of memory available - When dealing with memory information under Linux, you have to remember that Linux will utilize most of the unused memory for buffers and disk caching. Typically, to work out the total available memory, add together the values for "free", "buffers" and "cached"