stack created HBASE-16063:
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Summary: Race condition in new FIFO fastpath from HBASE-16023
Key: HBASE-16063
URL: https://issues.apache.org/jira/browse/HBASE-16063
Project: HBase
Issue Type: Sub-task
Affects Versions: 1.3.0
Reporter: stack
>From [~ikeda] over in HBASE-16023 at
>https://issues.apache.org/jira/browse/HBASE-16023?focusedCommentId=15331172&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15331172
{quote}
An concrete example of the race condition:
1. Worker checks no task.
2. Reader checks no ready handler.
3. Worker pushes itself as a ready handler and waits on the semaphore.
4. Reader queues a task to the queue, without directly passing it to the ready
handler nor releasing the semaphore.
(1,3) and (2,4) should be exclusively executed. That depends on luck, and it
might be not severe
{quote}
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