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Posted to issues@ignite.apache.org by "Denis Mekhanikov (JIRA)" <ji...@apache.org> on 2018/10/23 08:50:00 UTC
[jira] [Comment Edited] (IGNITE-9009) Local continuous query
listeners may be called on partition reassignment
[ https://issues.apache.org/jira/browse/IGNITE-9009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16603078#comment-16603078 ]
Denis Mekhanikov edited comment on IGNITE-9009 at 10/23/18 8:49 AM:
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[~agoncharuk], backups won't be notified, because they don't store the event queue. There are no ACKs sent to the backups.
I think, local continuous queries should work in isolation from each other.
If processing of cache events locally on all primary nodes is required, then [ContinuousQuery#remoteFilter|https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/cache/query/ContinuousQuery.html#setRemoteFilter-org.apache.ignite.cache.CacheEntryEventSerializableFilter-] should be used.
was (Author: dmekhanikov):
[~agoncharuk], backups won't be notified, because they don't store the event queue. There are no ACKs sent to the backups.
I think, local continuous queries should work in isolation from each other.
If processing of cache events locally on all primary nodes is required, then [Cache#registerCacheEntryListener|https://static.javadoc.io/javax.cache/cache-api/1.0.0/javax/cache/Cache.html#registerCacheEntryListener(javax.cache.configuration.CacheEntryListenerConfiguration)] should be used.
> Local continuous query listeners may be called on partition reassignment
> ------------------------------------------------------------------------
>
> Key: IGNITE-9009
> URL: https://issues.apache.org/jira/browse/IGNITE-9009
> Project: Ignite
> Issue Type: Bug
> Affects Versions: 2.5
> Reporter: Denis Mekhanikov
> Assignee: Denis Mekhanikov
> Priority: Major
> Fix For: 2.8
>
> Attachments: ContinuousQueryReassignmentTest.java
>
>
> When a node becomes primary for some partitions, then local continuous query listeners receive updates on entries from that partitions. Such invocations shouldn't happen.
> Attached test class demonstrates this behaviour.
> Dev list discussion: http://apache-ignite-developers.2346864.n4.nabble.com/Backup-queue-for-local-continuous-query-td33391.html
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