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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7165) Separate block metrics for files with replication count 1
Date Fri, 24 Oct 2014 15:13:36 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7165?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14182904#comment-14182904
] 

Hudson commented on HDFS-7165:
------------------------------

FAILURE: Integrated in Hadoop-Mapreduce-trunk #1936 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1936/])
HDFS-7165. Separate block metrics for files with replication count 1. (Zhe Zhang via wang)
(wang: rev 8c5b23b5473e447384f818d69d907d5c35ed6d6a)
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/metrics/TestNameNodeMetrics.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSClient.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/proto/ClientNamenodeProtocol.proto
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/UnderReplicatedBlocks.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/ClientProtocol.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/HeartbeatManager.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/DFSAdmin.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestUnderReplicatedBlockQueues.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelper.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestMissingBlocksAlert.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNodeMXBean.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DistributedFileSystem.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java


> Separate block metrics for files with replication count 1
> ---------------------------------------------------------
>
>                 Key: HDFS-7165
>                 URL: https://issues.apache.org/jira/browse/HDFS-7165
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>    Affects Versions: 2.5.1
>            Reporter: Andrew Wang
>            Assignee: Zhe Zhang
>             Fix For: 3.0.0
>
>         Attachments: HDFS-7165-20141003-v1.patch, HDFS-7165-20141009-v1.patch, HDFS-7165-20141010-v1.patch,
HDFS-7165-20141015-v1.patch, HDFS-7165-20141021-v1.patch, HDFS-7165-20141021-v2.patch
>
>
> We see a lot of escalations because someone has written teragen output with a replication
factor of 1, a DN goes down, and a bunch of missing blocks show up. These are normally false
positives, since teragen output is disposable, and generally speaking, users should understand
this is true for all repl=1 files.
> It'd be nice to be able to separate out these repl=1 missing blocks from missing blocks
with higher replication factors..



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