[ZBX-16489] Zabbix 4.2.5 with Elasticsearch 6.1.4 High utilization of History Syncer / LLD worker Created: 2019 Aug 09  Updated: 2019 Aug 19  Resolved: 2019 Aug 12

Status: Closed
Project: ZABBIX BUGS AND ISSUES
Component/s: Server (S)
Affects Version/s: 4.2.5
Fix Version/s: None

Type: Incident report Priority: Trivial
Reporter: Arman Zhankin Assignee: Zabbix Support Team
Resolution: Won't fix Votes: 0
Labels: LLD, elasticsearch, history
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified


 Description   

 

My setup:

Zabbix Server + 9 Proxy 
All devices SNMP
Backend Elasticsearch

  

High utilization of History Syncer Internal Processes, and Utilization of LLD worker 

 

zabbix.conf

  • name: ZBX_HISTORYSTORAGEURL
    value: http://es6-lb.elk-6:9200
  • name: ZBX_HISTORYSTORAGETYPES
    value: "uint,dbl,str,log,text"
  • name: ZBX_STARTDBSYNCERS
    value: "60"
  • name: ZBX_CACHESIZE
    value: 4G
  • name: ZBX_HISTORYCACHESIZE
    value: 2G
  • name: ZBX_HISTORYINDEXCACHESIZE
    value: 2G
  • name: ZBX_TRENDCACHESIZE
    value: 2G
  • name: ZBX_VALUECACHESIZE
    value: 4G
  • name: ZBX_HOUSEKEEPINGFREQUENCY
    value: "0"

 

I can't figure out how I can reduce the load, where to look for the problem



 Comments   
Comment by Arturs Lontons [ 2019 Aug 12 ]

Hi, 
It looks like there is some performance degradation, possibly caused by the amount of discovery rules being executed. This could affect the overall DB performance and, in turn, cause issues with the history syncing process at the same time.

Please be advised that this section of the tracker is for bug reports only. The case you have submitted can not be qualified as one, so please reach out to [email protected] for commercial support or consultancy services. Alternatively, you can also use our IRC channel or community forum (https://www.zabbix.com/forum) for assistance. With that said, we are closing this ticket. Thank you for understanding. 

 

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