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Suggestion
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Resolution: Fixed
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72
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41
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We believe at this point this problem is fixed, there were a number of changes in the recent version of Jira that improved the performance of reindexing.
Just to name a few:
- Upgrade to the recent Lucene version 7.x
- Optimization for the Custom Fields computation
- Increased number of Jira index threads to 20.
- If you have more powerful hardware, you can fine tune the number of Jira index threads.
That being said, we don't think the CPU is bottle-neck anymore and it can be properly utilized by Jira. Examples that we have some far, show problems related to slow DB performance or slow computation of specific user's Custom Fields, those are not related to Jira directly.
Initial Description
We have a big JIRA instance on a really good hardware:
- ~300k issues
- 48GB RAM
- 32 cores
- SSD in RAID
- PostgreSQL on localhsot
Still, reindexing does not increase the load above 4-5 (out of 32!), database is not under high load nor the filesystem.
Clearly this means that indexing is not properly using the resources in order to index rapidly.
Even with this configuration, a foreground reindex takes about one hour which is too much for a live system, in fact is too much even for a background reindex.
top - 11:57:30 up 50 days, 21:35, 2 users, load average: 4.43, 4.02, 3.79 Tasks: 413 total, 3 running, 410 sleeping, 0 stopped, 0 zombie Cpu(s): 14.3%us, 0.6%sy, 0.0%ni, 84.8%id, 0.1%wa, 0.0%hi, 0.1%si, 0.0%st Mem: 49415024k total, 48661932k used, 753092k free, 171160k buffers Swap: 2097148k total, 139576k used, 1957572k free, 21143064k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 18668 root 20 0 23.4g 3.0g 50m S 241 6.3 54145:22 java 13694 jira 20 0 25.2g 5.5g 496m S 110 11.6 108:55.12 java 14552 postgres 20 0 11.4g 896m 887m S 39 1.9 4:05.14 postgres 12496 postgres 20 0 11.4g 897m 890m R 24 1.9 2:07.22 postgres 14548 postgres 20 0 11.4g 947m 940m R 19 2.0 3:51.61 postgres 15014 confluen 20 0 16.9g 1.7g 8352 S 13 3.7 1196:28 java 14238 postgres 20 0 11.4g 1.0g 1.0g S 8 2.1 5:37.47 postgres 12499 postgres 20 0 11.4g 855m 850m S 8 1.8 2:06.02 postgres 30049 postgres 20 0 11.4g 78m 73m S 6 0.2 0:02.86 postgres 17921 postgres 20 0 11.4g 73m 66m S 2 0.2 0:03.98 postgres 4955 nginx 20 0 50924 17m 2168 S 1 0.0 107:41.21 nginx 47354 postgres 20 0 11.4g 4344 2168 S 1 0.0 6:24.91 postgres
Solution
By default, Jira uses 10 Reindexing threads. You can tune number of jira index threads.
- relates to
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- Closed
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- Closed
- was cloned as
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JDEV-29074 Loading...
