[jira] [Assigned] (CASSANDRA-15043) Add heap dump inspections to sidecar

["Chris Lohfink (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-15043?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chris Lohfink reassigned CASSANDRA-15043:
-----------------------------------------

    Assignee: Chris Lohfink  (was: Chris Lohfink)

> Add heap dump inspections to sidecar
> ------------------------------------
>
>                 Key: CASSANDRA-15043
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-15043
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Sidecar
>            Reporter: Chris Lohfink
>            Assignee: Chris Lohfink
>            Priority: Normal
>
> Add to ui a tool to view heap dumps cassandra produces when OOM to identify the issue that caused it. Three views
> 1. C* inspections - useful inspections like a list of the largest partitions, most active partitions, largest (and most by table and partition) mutations.
> 2. Threads - their stack traces, heap size, and values of things in local processing scope (that can be clicked through and explored)
> 3. Metrics - view state of all the metrics at time of heap dump
> Additional requirement: since this runs on cassandra sidecar it should use very low memory (ie sub 100mb) and not consume massive cpu



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