[BUG]org.opensearch.performanceanalyzer.collectors.CacheConfigMetricsCollector$CacheMaxSizeStatus

[coredump17]

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What is the bug? Since upgrading from 2.12 to 2.13 i see the below WARN messages spamming the logs Json Mapping Error: Cannot invoke “java.lang.Long.longValue()” because “this.cacheMaxSize” is null (through reference chain: org.opensearch.performanceanalyzer.collectors.CacheConfigMetricsCollector$CacheMaxSizeStatus[“Cache_MaxSize”])

How can one reproduce the bug? install 2.13

What is the expected behavior? no errors logged

What is your host/environment? opensearch 2.13 container

[timolow]

Having this issue too.

[guldil]

Same here.

[sarankup]

Same here

[Gradlon]

Same here.

[ComBin]

Me too

[geckiss]

Same here

[dxturner]

see this also.

[slayerjk]

same here(after update from 2.12 to 2.13)

[rtista]

Same here on after update from 2.12.0 to 2.13.0.

[22charud]

I have the same issue on 2.13

[TheHansam]

Same here on a fresh install on AlmaLinux 9.3.

[pmarjou22]

same here

[tdankers]

Same here :-( Version "2.13.0

cluster.name": "opensearch", "node.name": "ubuntu", "message": "Json Mapping Error: Cannot invoke "java.lang.Long.longValue()" because "this.cacheMaxSize" is null (through reference chain: org.opensearch.performanceanalyzer.collectors.CacheConfigMetricsCollector$CacheMaxSizeStatus["Cache_MaxSize"])", "cluster.uuid": "P6RyCh4KS5SObyb7k05akA", "node.id": "V9D7KQFqRgKoiNsOop8UzQ" }

[merlinz01]

Same here. Version 2.13.0 on Debian 12. Is there perhaps a setting that needs to be set?

Downgraded to 2.12.0 to bypass the issue for now.

[merlinz01]

I upgraded back to 2.13.0 and removed the Performance Analyzer plugin, and the errors aren't appearing for me.

Seems to be related to JSON marshaling of a performance metric perhaps?

v1.13.0 https://github.com/opensearch-project/performance-analyzer/blob/42889919319fb0a1f89c6e07b58cd9f7ee2d8718/src/main/java/com/amazon/opendistro/elasticsearch/performanceanalyzer/collectors/CacheConfigMetricsCollector.java#L113-L114

main https://github.com/opensearch-project/performance-analyzer/blob/4928231bed654a6d14c3d27668e1e50e29280a38/src/main/java/org/opensearch/performanceanalyzer/collectors/CacheConfigMetricsCollector.java#L145-L146

[cinhtau]

I just disable the Performance Analyzer on my cluster Version 2.14 today as described in https://opensearch.org/docs/latest/monitoring-your-cluster/pa/index/#disable-performance-analyzer. Was making the rolling upgrade troublesome.

[ansjcy]

There are some exceptions raised in the collectMetrics function in CacheConfigMetricsCollector. The current logic returns a CacheMaxSizeStatus with null cacheMaxSize if exception is raised, while we require it to be non-null.

@varunsrivathsav, @atharvasharma61, @psychbot, let's investigate this further to understand:

• What is causing the error to be thrown in 2.13?
• We should fix the above bug in the code to raise/log the exception, rather than returning an Object with null value.

[caothu159]

While waiting for the new upgrade, you can perform the following fixes: In debian or ubuntu, make opensearch.service auto restart on fail, crash or has an unclean exit:

• Edit service file, example /lib/systemd/system/opensearch.service
• In [Service] before [Install], add 2 lines:

Restart=on-failure
RestartSec=60s

• Run command systemctl daemon-reload to reload units
• Run systemctl restart opensearch anh see

Example results:

...
# Allow a slow startup before the systemd notifier module kicks in to extend the timeout
TimeoutStartSec=75

Restart=on-failure
RestartSec=60s

[Install]
WantedBy=multi-user.target
...

[borisdenis]

I have the same issue on 2.14 Ubuntu 22.04

{ "name" : "opensearch1", "cluster_name" : "graylog", "cluster_uuid" : "F71gNpV-TUSjVbscIkUSTg", "version" : { "distribution" : "opensearch", "number" : "2.14.0", "build_type" : "deb", "build_hash" : "aaa555453f4713d652b52436874e11ba258d8f03", "build_date" : "2024-05-09T18:50:48.052504416Z", "build_snapshot" : false, "lucene_version" : "9.10.0", "minimum_wire_compatibility_version" : "7.10.0", "minimum_index_compatibility_version" : "7.0.0" }, "tagline" : "The OpenSearch Project: https://opensearch.org/" }