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Posted to hdfs-issues@hadoop.apache.org by "Huibo Peng (Jira)" <ji...@apache.org> on 2023/06/01 08:22:00 UTC
[jira] [Comment Edited] (HDFS-16535) SlotReleaser should reuse the domain socket based on socket paths
[ https://issues.apache.org/jira/browse/HDFS-16535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17728259#comment-17728259 ]
Huibo Peng edited comment on HDFS-16535 at 6/1/23 8:21 AM:
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Hello, [~stigahuang], [~weichiu]. I'm wondering if we restart DataNode will trigger this bug? Thanks.
was (Author: huibo peng):
Hello, I'm wondering if we restart DataNode will trigger this bug? Thanks.
> SlotReleaser should reuse the domain socket based on socket paths
> -----------------------------------------------------------------
>
> Key: HDFS-16535
> URL: https://issues.apache.org/jira/browse/HDFS-16535
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs-client
> Affects Versions: 3.3.1, 3.4.0
> Reporter: Quanlong Huang
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0, 3.3.3
>
> Time Spent: 2h
> Remaining Estimate: 0h
>
> HDFS-13639 improves the performance of short-circuit shm slot releasing by reusing the domain socket that the client previously used to send release request to the DataNode.
> This is good when there are only one DataNode locates with the client (truth in most of the production environment). However, if we launch multiple DataNodes on a machine (usually for testing, e.g. Impala's end-to-end tests), the request could be sent to the wrong DataNode. See an example in IMPALA-11234.
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