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Posted to issues@ignite.apache.org by "Alexey Goncharuk (JIRA)" <ji...@apache.org> on 2018/10/22 13:34:00 UTC
[jira] [Resolved] (IGNITE-8006) Starting multiple caches slows down
exchange process on joining node
[ https://issues.apache.org/jira/browse/IGNITE-8006?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexey Goncharuk resolved IGNITE-8006.
--------------------------------------
Resolution: Fixed
Merged to master.
> Starting multiple caches slows down exchange process on joining node
> --------------------------------------------------------------------
>
> Key: IGNITE-8006
> URL: https://issues.apache.org/jira/browse/IGNITE-8006
> Project: Ignite
> Issue Type: Improvement
> Reporter: Vladislav Pyatkov
> Assignee: Anton Kalashnikov
> Priority: Major
> Fix For: 2.8
>
>
> In some cases when we starts multiple caches (over 2K caches), we can get a stop on exchange when new node joining to the cluster.
> Coordinator-node wait to receive a single message from all other nodes, but last node (which want to joining to the cluster) stopped on starting caches:
>
> {noformat}
> Stack trace
> at java.lang.Thread.dumpStack(Thread.java:1329)
> at org.apache.ignite.internal.processors.cache.GridCacheProcessor.startCache(GridCacheProcessor.java:1159)
> at org.apache.ignite.internal.processors.cache.GridCacheProcessor.prepareCacheStart(GridCacheProcessor.java:1900)
> at org.apache.ignite.internal.processors.cache.GridCacheProcessor.startCachesOnLocalJoin(GridCacheProcessor.java:1764)
> at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.initCachesOnLocalJoin(GridDhtPartitionsExchangeFuture.java:740)
> at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.init(GridDhtPartitionsExchangeFuture.java:622)
> at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body(GridCachePartitionExchangeManager.java:2329)
> at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
> at java.lang.Thread.run(Thread.java:745)
> {noformat}
> It blocks cluster exchange process until all caches started on the last node.
> We should start caches in parallel threads or exclude the action from exchange init process.
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