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https://issues.apache.org/jira/browse/HDFS-15255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17076104#comment-17076104
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Lisheng Sun commented on HDFS-15255:
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{quote}FindBugs:Call to
org.apache.hadoop.hdfs.protocol.DatanodeInfoWithStorage.equals(org.apache.hadoop.hdfs.server.blockmanagement.DatanodeDescriptor)
in
org.apache.hadoop.hdfs.server.namenode.CacheManager.setCachedLocations(LocatedBlock)
At CacheManager.java: At CacheManager.java:[line 955]
Bug type EC_UNRELATED_TYPES (click for details)
{quote}
About this error, I do n’t know where the problem is.
DatanodeInfoWithStorage and DatanodeDescriptor also extend DatanodeInfo and
overwrite equals().
i runTestCacheDirectives#testNoLookupsWhenNotUsed that call
CacheManager#setCachedLocations in local successfully.
i use the jdk is openjdk version "1.8.0_242"
hi [~elgoiri] [~sodonnell] [~weichiu] [~ayushtkn] Could you have time help
review this patch? Thank you.
> Consider StorageType when DatanodeManager#sortLocatedBlock()
> ------------------------------------------------------------
>
> Key: HDFS-15255
> URL: https://issues.apache.org/jira/browse/HDFS-15255
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Lisheng Sun
> Assignee: Lisheng Sun
> Priority: Major
> Attachments: HDFS-15255.001.patch
>
>
> When only one replica of a block is SDD, the others are HDD.
> When the client reads the data, the current logic is that it considers the
> distance between the client and the dn. I think it should also consider the
> StorageType of the replica. Priority to return a replica of the specified
> StorageType
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