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[HDFS-5526] Datanode cannot roll back to previous layout version - HDFS - [issue]
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...Current trunk layout version is -48.Hadoop v2.2.0 layout version is -47.If a cluster is upgraded from v2.2.0 (-47) to trunk (-48), the datanodes cannot start with -rollback. It will fa...
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http://issues.apache.org/jira/browse/HDFS-5526
Author: Tsz Wo,
2013-12-02, 20:46
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[HDFS-5557] Write pipeline recovery for the last packet in the block may cause rejection of valid replicas - HDFS - [issue]
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...When a block is reported from a data node while the block is under construction (i.e. not committed or completed), BlockManager calls BlockInfoUnderConstruction.addReplicaIfNotPresent() to u...
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http://issues.apache.org/jira/browse/HDFS-5557
Author: Kihwal Lee,
2013-12-02, 20:36
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[HDFS-5588] Incorrect values of trash configuration and trash emptier state in namenode log - HDFS - [issue]
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...Values of trash configuration and trash emptier state in namenode log are displayed in milliseconds (but it should be seconds). This is very confusing because it makes you feel that Trash do...
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http://issues.apache.org/jira/browse/HDFS-5588
Author: Adam Kawa,
2013-12-02, 19:56
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[HDFS-5564] Refactor tests in TestCacheDirectives - HDFS - [issue]
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...Some of the tests in TestCacheDirectives start their own MiniDFSCluster to get a new config, even though we already start a cluster in the @Before function. This contributes to longer test r...
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http://issues.apache.org/jira/browse/HDFS-5564
Author: Andrew Wang,
2013-12-02, 19:39
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[HDFS-5589] Namenode loops caching and uncaching when data should be uncached - HDFS - [issue]
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...This was reported by Chris Nauroth and Brandon Li, and Stephen Chu repro'd it too.If you add a new caching directive then remove it, the Namenode will sometimes get stuck in a loop where it ...
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http://issues.apache.org/jira/browse/HDFS-5589
Author: Andrew Wang,
2013-12-02, 19:33
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[HDFS-4881] fine tune "Access token verification failed" error msg in datanode log - HDFS - [issue]
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...I'd like to issue this ticket is due to we suffered a datanode access token verification failure issue recently. The client is HBase who is accessing the local datanode via DFSClient. The de...
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http://issues.apache.org/jira/browse/HDFS-4881
Author: takeshi.miao,
2013-12-02, 18:54
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[HDFS-5586] Add quick-restart option for datanode - HDFS - [issue]
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...This feature, combined with the graceful shutdown feature, will enable data nodes to come back up and start serving quickly. This is likely a command line option for data node, which t...
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http://issues.apache.org/jira/browse/HDFS-5586
Author: Kihwal Lee,
2013-12-02, 17:31
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[HDFS-4949] Centralized cache management in HDFS - HDFS - [issue]
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...HDFS currently has no support for managing or exposing in-memory caches at datanodes. This makes it harder for higher level application frameworks like Hive, Pig, and Impala to effectively u...
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http://issues.apache.org/jira/browse/HDFS-4949
Author: Andrew Wang,
2013-12-02, 17:02
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[HDFS-5585] Provide admin commands for data node upgrade - HDFS - [issue]
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...Several new methods to ClientDatanodeProtocol may need to be added to support querying version, initiating upgrade, etc. The admin CLI needs to be added as well. This primary use case ...
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http://issues.apache.org/jira/browse/HDFS-5585
Author: Kihwal Lee,
2013-12-02, 16:52
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[HDFS-5584] Add OOB upgrade response and client-side logic for reads - HDFS - [issue]
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...Similarly to HDFS-5583, readers can also benefit from the knowledge that a data node failure is caused by an upgrade restart. Instead of permanently removing from the potential data so...
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http://issues.apache.org/jira/browse/HDFS-5584
Author: Kihwal Lee,
2013-12-02, 16:46
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