On 9/8/2021 6:32 AM, jay harkhani wrote:
We are using Solr 6.1.0 on our production environment. We have 2 shards and 2
replicas. On one shardreplica (shard2R) suddenly not response for around 18
sec. and went into recovery mode after that. Links to access Solr Logs, GC logs
and GC analysis graph image as below.
Pause server: shard2R
Pause time: 2021-08-16 06:56:40.580 to 2021-08-16 06:56:58.024.
shard1 :
https://drive.google.com/file/d/1OJgt6S0Q3aoeB-jMqO3CZVk4cTyGWBdR/view?usp=sharing
shard1R :
https://drive.google.com/file/d/1V2QVtAIfB5E2IrmeCkLiYKuOMvOMkq4Y/view?usp=sharing
shard2 :
https://drive.google.com/file/d/1fOl8HVl7ZsErs2lJOphqWxE0gM5aYVT4/view?usp=sharing
shard2R :
https://drive.google.com/file/d/1PugQqxTfvDOVuJieI8VuASwmZFx8UaJw/view?usp=sharing
shard2R GC :
https://drive.google.com/file/d/1iSaCCp9362xcAir54DIrVXqSVQSueeQb/view?usp=sharing
shard2R GC image :
https://drive.google.com/file/d/1_lfERtrzpNJLNUFudCc4N3gBAfU_bPgY/view?usp=sharing
Something interesting ... gceasy says the gc log covers 8 days, but the
graph only shows two hours. Did you cut part of the GC log out?
Line 4 of the log has timestamp 2021-08-08T06:20:32.407+0100
Line 5 of the log has timestamp 2021-08-16T05:55:21.263+0100
So eight days of log data is missing. It will be impossible to give you
useful recommendations without the entire log.
I was going to say that you should upgrade to Java 11 and switch to the
Shenandoah collector, but I don't think Solr 6.1.0 would work with Java
11. 6.1.0 is very ancient, and there were changes required to support
newer Java versions than Java 8 that were only done in 7.0 and later.
It probably would be advisable to upgrade to the newest Java 8 version
(currently 8u301) ... but that may not help in any way.
Thanks,
Shawn
