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https://issues.apache.org/jira/browse/IGNITE-15568?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexey Scherbakov updated IGNITE-15568:
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Description:
The following scenario is broken:
# Two raft groups are started and mapped to the same stripe.
# Two LogEntryAndClosure events are added in quick succession so they form
distruptor batch: first for group 1, second for group 2.
First event is delivered to group 1 with endOfBatch=false, so it's cached in
org.apache.ignite.raft.jraft.core.NodeImpl.LogEntryAndClosureHandler#tasks and
is not processed.
Second event is delivered to group 2 with endOfBatch=true and processed, but
first event will remain in queue unprocessed forever, because
LogEntryAndClosureHandler are different instances per raft group.
The possible WA for this is to set
org.apache.ignite.raft.jraft.option.RaftOptions#applyBatch=1
.
was:
The following scenario is broken:
# Two raft groups are started and mapped to the same stripe.
# Two LogEntryAndClosure events are added in quick succession so they form
distruptor batch: first for group 1, second for group 2.
First event is delivered to group 1 with endOfBatch=false, so it's cached in
org.apache.ignite.raft.jraft.core.NodeImpl.LogEntryAndClosureHandler#tasks and
not processed.
Second event is delivered to group 2 with endOfBatch=true and processed, but
first event will remain in queue unprocessed forever, because
LogEntryAndClosureHandler are different instances per raft group.
The possible WA for this is to set
org.apache.ignite.raft.jraft.option.RaftOptions#applyBatch=1
.
> Striped Disruptror doesn't work with JRaft event handlers properly
> ------------------------------------------------------------------
>
> Key: IGNITE-15568
> URL: https://issues.apache.org/jira/browse/IGNITE-15568
> Project: Ignite
> Issue Type: Bug
> Reporter: Alexey Scherbakov
> Priority: Major
> Labels: ignite-3
> Fix For: 3.0.0-alpha3
>
>
> The following scenario is broken:
> # Two raft groups are started and mapped to the same stripe.
> # Two LogEntryAndClosure events are added in quick succession so they form
> distruptor batch: first for group 1, second for group 2.
> First event is delivered to group 1 with endOfBatch=false, so it's cached in
> org.apache.ignite.raft.jraft.core.NodeImpl.LogEntryAndClosureHandler#tasks
> and is not processed.
> Second event is delivered to group 2 with endOfBatch=true and processed, but
> first event will remain in queue unprocessed forever, because
> LogEntryAndClosureHandler are different instances per raft group.
> The possible WA for this is to set
> org.apache.ignite.raft.jraft.option.RaftOptions#applyBatch=1
> .
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