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https://issues.apache.org/jira/browse/STORM-1999?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15391977#comment-15391977
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Satish Duggana commented on STORM-1999:
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[~kabhwan]
http://storm.apache.org/releases/1.0.0/Troubleshooting.html
http://storm.apache.org/releases/1.0.1/Troubleshooting.html
shows below info which needs to be corrected
{quote}
This is caused by having multiple threads issue methods on the OutputCollector.
All emits, acks, and fails must happen on the same thread. One subtle way this
can happen is if you make a IBasicBolt that emits on a separate thread.
IBasicBolt's automatically ack after execute is called, so this would cause
multiple threads to use the OutputCollector leading to this exception. When
using a basic bolt, all emits must happen in the same thread that runs execute.
{quote}
> Update docs with OutputCollector's threadsafety
> -----------------------------------------------
>
> Key: STORM-1999
> URL: https://issues.apache.org/jira/browse/STORM-1999
> Project: Apache Storm
> Issue Type: Bug
> Components: documentation
> Affects Versions: 1.0.0, 1.1.0
> Reporter: Satish Duggana
>
> From 1.x branch, Updated docs about OutputCollector;s threadsafety.
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