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https://issues.apache.org/jira/browse/HDFS-9754?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15145105#comment-15145105
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Hudson commented on HDFS-9754:
------------------------------
FAILURE: Integrated in Hadoop-trunk-Commit #9296 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/9296/])
HDFS-9754. Avoid unnecessary getBlockCollection calls in BlockManager. (jing9:
rev 972782d9568e0849484c027f27c1638ba50ec56e)
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeMetadataConsistency.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INode.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/Namesystem.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeFile.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlocksMap.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockInfo.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirTruncateOp.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/FileWithSnapshotFeature.java
> Avoid unnecessary getBlockCollection calls in BlockManager
> ----------------------------------------------------------
>
> Key: HDFS-9754
> URL: https://issues.apache.org/jira/browse/HDFS-9754
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: namenode
> Reporter: Jing Zhao
> Assignee: Jing Zhao
> Attachments: HDFS-9754.000.patch, HDFS-9754.001.patch,
> HDFS-9754.002.patch
>
>
> Currently BlockManager calls {{Namesystem#getBlockCollection}} in order to:
> 1. check if the block has already been abandoned
> 2. identify the storage policy of the block
> 3. meta save
> For #1 we can use BlockInfo's internal state instead of checking if the
> corresponding file still exists.
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