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Posted to commits@cassandra.apache.org by "Ling Mao (Jira)" <ji...@apache.org> on 2024/06/05 02:31:00 UTC
[jira] [Commented] (CASSANDRA-19022) Nodetool gcstats correctly displays Direct Memory usage and supports printing in table format
[ https://issues.apache.org/jira/browse/CASSANDRA-19022?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17852247#comment-17852247 ]
Ling Mao commented on CASSANDRA-19022:
--------------------------------------
It's a bug. I'll create a PR tonight.
> Nodetool gcstats correctly displays Direct Memory usage and supports printing in table format
> ---------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-19022
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19022
> Project: Cassandra
> Issue Type: Bug
> Components: Tool/nodetool
> Reporter: Brad Schoening
> Priority: Normal
>
> If {{io.netty.maxDirectMemory}} is not specified, Netty defaults the limit to the max heap size. Thus, direct memory in use can be significant.
> However, trying this on two different platform and the result returned in gcstats is always -1:
> {noformat}
> Interval (ms) Max GC Elapsed (ms)Total GC Elapsed (ms)Stdev GC Elapsed (ms) GC Reclaimed (MB) Collections Direct Memory Bytes
> 2792770717 274 665186 54 41276288089024 6120 -1{noformat}
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