[
https://issues.apache.org/jira/browse/HDFS-11758?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
James Clampffer updated HDFS-11758:
-----------------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
Committed to HDFS-8707. Thanks for reviewing [~anatoli.shein].
> libhdfs++: Catch exceptions thrown by runtime hooks
> ---------------------------------------------------
>
> Key: HDFS-11758
> URL: https://issues.apache.org/jira/browse/HDFS-11758
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
> Reporter: James Clampffer
> Assignee: James Clampffer
> Attachments: HDFS-11758.HDFS-8707.000.patch,
> HDFS-11758.HDFS-8707.001.patch
>
>
> Right now there's nothing to stop a user supplied event callback from
> throwing and unwinding the stack on the asio worker thread. This can lead to
> async filesystem operations that never complete because the stack was unwound
> before setting up the next async io call.
> Best practice is to be really careful about what is done inside event hooks
> and callbacks: don't throw, sleep, or anything else that might block. I've
> seen a few issues pop up because a hook was made for monitoring purposes and
> later on stuff that was able to throw was added without realizing where the
> exception may end up.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
