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https://issues.apache.org/jira/browse/CASSANDRA-15013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16883581#comment-16883581
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Sumanth Pasupuleti edited comment on CASSANDRA-15013 at 7/12/19 6:57 AM:
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Sure [~benedict]. Here are the patches:
*3.0*
Patch: [^15013-3.0.txt]
Passing UTs and DTests
https://circleci.com/workflow-run/c7889003-9c58-4099-9530-0439bf241238
Github:
https://github.com/apache/cassandra/compare/cassandra-3.0...sumanth-pasupuleti:15013_3.0?expand=1
*3.11*
Patch: [^15013-3.11.txt]
Passing UTs and DTests
https://circleci.com/workflow-run/46de0958-850a-4531-a15f-fd1df0c65aac
Github:
https://github.com/apache/cassandra/compare/cassandra-3.11...sumanth-pasupuleti:15013_3.11?expand=1
*trunk*
Patch: [^15013-trunk.txt]
Passing UTs and DTests
https://circleci.com/workflow-run/67e43b0b-7f13-4de2-8fbd-7cab3d72b607
Github:
https://github.com/apache/cassandra/compare/trunk...sumanth-pasupuleti:15013_trunk?expand=1
was (Author: sumanth.pasupuleti):
Sure [~benedict]. Here are the patches:
*3.0*
Patch: [^15013-3.0.txt]
Passing UTs and DTests
https://circleci.com/workflow-run/c7889003-9c58-4099-9530-0439bf241238
Github branch:
https://github.com/apache/cassandra/compare/cassandra-3.0...sumanth-pasupuleti:15013_3.0?expand=1
*3.11*
Patch: [^15013-3.11.txt]
Passing UTs and DTests
https://circleci.com/workflow-run/46de0958-850a-4531-a15f-fd1df0c65aac
Github branch:
https://github.com/apache/cassandra/compare/cassandra-3.11...sumanth-pasupuleti:15013_3.11?expand=1
*trunk*
Patch: [^15013-trunk.txt]
Passing UTs and DTests
https://circleci.com/workflow-run/67e43b0b-7f13-4de2-8fbd-7cab3d72b607
Github branch:
https://github.com/apache/cassandra/compare/trunk...sumanth-pasupuleti:15013_trunk?expand=1
> Message Flusher queue can grow unbounded, potentially running JVM out of
> memory
> -------------------------------------------------------------------------------
>
> Key: CASSANDRA-15013
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15013
> Project: Cassandra
> Issue Type: Bug
> Components: Messaging/Client
> Reporter: Sumanth Pasupuleti
> Assignee: Sumanth Pasupuleti
> Priority: Normal
> Labels: pull-request-available
> Fix For: 4.0, 3.0.x, 3.11.x
>
> Attachments: 15013-3.0.txt, 15013-3.11.txt, 15013-trunk.txt,
> BlockedEpollEventLoopFromHeapDump.png,
> BlockedEpollEventLoopFromThreadDump.png, RequestExecutorQueueFull.png, heap
> dump showing each ImmediateFlusher taking upto 600MB.png,
> perftest2_15013_base_flamegraph.svg, perftest2_15013_patch_flamegraph.svg,
> perftest2_blocked_threadpool.png, perftest2_cpu_usage.png,
> perftest2_heap.png, perftest2_read_latency_99th.png,
> perftest2_read_latency_avg.png, perftest2_readops.png,
> perftest2_write_latency_99th.png, perftest2_write_latency_avg.png,
> perftest2_writeops.png, perftest_blockedthreads.png,
> perftest_connections_count.png, perftest_cpu_usage.png,
> perftest_heap_usage.png, perftest_readlatency_99th.png,
> perftest_readlatency_avg.png, perftest_readops.png,
> perftest_writelatency_99th.png, perftest_writelatency_avg.png,
> perftest_writeops.png
>
>
> This is a follow-up ticket out of CASSANDRA-14855, to make the Flusher queue
> bounded, since, in the current state, items get added to the queue without
> any checks on queue size, nor with any checks on netty outbound buffer to
> check the isWritable state.
> We are seeing this issue hit our production 3.0 clusters quite often.
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