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https://issues.apache.org/jira/browse/CASSANDRA-12662?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15501465#comment-15501465
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Maxim Podkolzine commented on CASSANDRA-12662:
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Got it, thanks a lot!
We don't use SSD right now, I need to check what the actual storage is.
I'll try to get as much CPU and RAM as possible and get back with the results.
> OOM when using SASI index
> -------------------------
>
> Key: CASSANDRA-12662
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12662
> Project: Cassandra
> Issue Type: Bug
> Environment: Linux, 4 CPU cores, 16Gb RAM, Cassandra process utilizes
> ~8Gb, of which ~4Gb is Java heap
> Reporter: Maxim Podkolzine
> Priority: Critical
> Fix For: 3.6
>
> Attachments: memory-dump.png
>
>
> 2.8Gb of the heap is taken by the index data, pending for flush (see the
> screenshot). As a result the node fails with OOM.
> Questions:
> - Why can't Cassandra keep up with the inserted data and flush it?
> - What resources/configuration should be changed to improve the performance?
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