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https://issues.apache.org/jira/browse/IGNITE-3195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16879031#comment-16879031
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Stanilovsky Evgeny commented on IGNITE-3195:
--------------------------------------------
look like we clash the same problem on blt change:
{code:java}
2019-07-04 06:29:03.649[WARN
][sys-#328%DPL_GRID%DplGridNodeName%][o.a.i.i.p.c.p.pagemem.PageMemoryImpl]
Parking thread=sys-#328%DPL_GRID%DplGridNodeName% for timeout(ms)=16335
2019-07-04 06:29:03.649[WARN
][sys-#326%DPL_GRID%DplGridNodeName%][o.a.i.i.p.c.p.pagemem.PageMemoryImpl]
Parking thread=sys-#326%DPL_GRID%DplGridNodeName% for timeout(ms)=13438
2019-07-04 06:29:03.649[WARN
][sys-#277%DPL_GRID%DplGridNodeName%][o.a.i.i.p.c.p.pagemem.PageMemoryImpl]
Parking thread=sys-#277%DPL_GRID%DplGridNodeName% for timeout(ms)=11609
2019-07-04 06:29:03.649[WARN
][sys-#331%DPL_GRID%DplGridNodeName%][o.a.i.i.p.c.p.pagemem.PageMemoryImpl]
Parking thread=sys-#331%DPL_GRID%DplGridNodeName% for timeout(ms)=18009
2019-07-04 06:29:03.649[WARN
][sys-#321%DPL_GRID%DplGridNodeName%][o.a.i.i.p.c.p.pagemem.PageMemoryImpl]
Parking thread=sys-#321%DPL_GRID%DplGridNodeName% for timeout(ms)=15557
2019-07-04 06:29:03.650[WARN
][sys-#307%DPL_GRID%DplGridNodeName%][o.a.i.i.p.c.p.pagemem.PageMemoryImpl]
Parking thread=sys-#307%DPL_GRID%DplGridNodeName% for timeout(ms)=27938
2019-07-04 06:29:03.649[WARN
][sys-#316%DPL_GRID%DplGridNodeName%][o.a.i.i.p.c.p.pagemem.PageMemoryImpl]
Parking thread=sys-#316%DPL_GRID%DplGridNodeName% for timeout(ms)=12189
2019-07-04 06:29:03.649[WARN
][sys-#311%DPL_GRID%DplGridNodeName%][o.a.i.i.p.c.p.pagemem.PageMemoryImpl]
Parking thread=sys-#311%DPL_GRID%DplGridNodeName% for timeout(ms)=11056
2019-07-04 06:29:03.650[WARN
][sys-#295%DPL_GRID%DplGridNodeName%][o.a.i.i.p.c.p.pagemem.PageMemoryImpl]
Parking thread=sys-#295%DPL_GRID%DplGridNodeName% for timeout(ms)=20848
2019-07-04 06:29:03.649[WARN
][sys-#290%DPL_GRID%DplGridNodeName%][o.a.i.i.p.c.p.pagemem.PageMemoryImpl]
Parking thread=sys-#290%DPL_GRID%DplGridNodeName% for timeout(ms)=14816
2019-07-04 06:29:03.649[WARN
][sys-#332%DPL_GRID%DplGridNodeName%][o.a.i.i.p.c.p.pagemem.PageMemoryImpl]
Parking thread=sys-#332%DPL_GRID%DplGridNodeName% for timeout(ms)=14110
2019-07-04 06:29:03.649[WARN
][sys-#298%DPL_GRID%DplGridNodeName%][o.a.i.i.p.c.p.pagemem.PageMemoryImpl]
Parking thread=sys-#298%DPL_GRID%DplGridNodeName% for timeout(ms)=10028
2019-07-04 06:29:03.650[WARN
][sys-#304%DPL_GRID%DplGridNodeName%][o.a.i.i.p.c.p.pagemem.PageMemoryImpl]
Parking thread=sys-#304%DPL_GRID%DplGridNodeName% for timeout(ms)=19855
2019-07-04 06:29:03.650[WARN
][sys-#331%DPL_GRID%DplGridNodeName%][o.a.i.i.p.c.p.pagemem.PageMemoryImpl]
Parking thread=sys-#331%DPL_GRID%DplGridNodeName% for timeout(ms)=41277
... and so on
{code}
> Rebalancing: IgniteConfiguration.rebalanceThreadPoolSize is wrongly treated
> ---------------------------------------------------------------------------
>
> Key: IGNITE-3195
> URL: https://issues.apache.org/jira/browse/IGNITE-3195
> Project: Ignite
> Issue Type: Bug
> Components: cache
> Reporter: Denis Magda
> Assignee: Anton Vinogradov
> Priority: Major
> Labels: iep-16
> Fix For: 2.8
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Presently it's considered that the maximum number of threads that has to
> process all demand and supply messages coming from all the nodes must not be
> bigger than {{IgniteConfiguration.rebalanceThreadPoolSize}}.
> Current implementation relies on ordered messages functionality creating a
> number of topics equal to {{IgniteConfiguration.rebalanceThreadPoolSize}}.
> However, the implementation doesn't take into account that ordered messages,
> that correspond to a particular topic, are processed in parallel for
> different nodes. Refer to the implementation of
> {{GridIoManager.processOrderedMessage}} to see that for every topic there
> will be a unique {{GridCommunicationMessageSet}} for every node.
> Also to prove that this is true you can refer to this execution stack
> {noformat}
> java.lang.RuntimeException: HAPPENED DEMAND
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$5.apply(GridCachePartitionExchangeManager.java:378)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$5.apply(GridCachePartitionExchangeManager.java:364)
> at
> org.apache.ignite.internal.processors.cache.GridCacheIoManager.processMessage(GridCacheIoManager.java:622)
> at
> org.apache.ignite.internal.processors.cache.GridCacheIoManager.onMessage0(GridCacheIoManager.java:320)
> at
> org.apache.ignite.internal.processors.cache.GridCacheIoManager.access$300(GridCacheIoManager.java:81)
> at
> org.apache.ignite.internal.processors.cache.GridCacheIoManager$OrderedMessageListener.onMessage(GridCacheIoManager.java:1125)
> at
> org.apache.ignite.internal.managers.communication.GridIoManager.invokeListener(GridIoManager.java:1219)
> at
> org.apache.ignite.internal.managers.communication.GridIoManager.access$1600(GridIoManager.java:105)
> at
> org.apache.ignite.internal.managers.communication.GridIoManager$GridCommunicationMessageSet.unwind(GridIoManager.java:2456)
> at
> org.apache.ignite.internal.managers.communication.GridIoManager.unwindMessageSet(GridIoManager.java:1179)
> at
> org.apache.ignite.internal.managers.communication.GridIoManager.access$1900(GridIoManager.java:105)
> at
> org.apache.ignite.internal.managers.communication.GridIoManager$6.run(GridIoManager.java:1148)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> {noformat}
> All this means that in fact the number of threads that will be busy with
> replication activity will be equal to
> {{IgniteConfiguration.rebalanceThreadPoolSize}} x
> number_of_nodes_participated_in_rebalancing
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