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From "Yiqun Lin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-13962) Add null check for add-replica pool to avoid lock acquiring
Date Fri, 05 Oct 2018 09:18:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-13962?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yiqun Lin updated HDFS-13962:
-----------------------------
    Description: 
This is a follow-up work for HDFS-13768. Mainly two places needed to update:
 * Add null check for add-replica pool to avoid lock acquiring
 * In {{ReplicaMap#addAndGet}}, it would be better to use {{FoldedTreeSet#addOrReplace}} instead
of {{FoldedTreeSet#add}} for adding replica info. This is for the logic consistentency with
add operation

  was:
This is a follow-up work for HDFS-13768. Mainly two places needed to update:

* Add null check for add-replica pool to avoid lock acquiring
* In {{ReplicaMap#addAndGet}}, it would be better to use {{FoldedTreeSet#addOrReplace}} instead
of {{FoldedTreeSet#add}} for adding replica info.


> Add null check for add-replica pool to avoid lock acquiring
> -----------------------------------------------------------
>
>                 Key: HDFS-13962
>                 URL: https://issues.apache.org/jira/browse/HDFS-13962
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 3.1.1
>            Reporter: Yiqun Lin
>            Assignee: Surendra Singh Lilhore
>            Priority: Major
>
> This is a follow-up work for HDFS-13768. Mainly two places needed to update:
>  * Add null check for add-replica pool to avoid lock acquiring
>  * In {{ReplicaMap#addAndGet}}, it would be better to use {{FoldedTreeSet#addOrReplace}}
instead of {{FoldedTreeSet#add}} for adding replica info. This is for the logic consistentency
with add operation



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