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[HDFS-4845] FSEditLogLoader gets NPE while accessing INodeMap in TestEditLogRace - HDFS - [issue]
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...TestEditLogRace fails occasionally because it gets NPE from manipulating INodeMap while loading edits....
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http://issues.apache.org/jira/browse/HDFS-4845
Author: Kihwal Lee,
2013-05-24, 19:56
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[HDFS-4780] Use the correct relogin method for services - HDFS - [issue]
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...A number of components call reloginFromKeytab() before making requests. For StandbyCheckpointer and SecondaryNameNode, where this can be called frequently, it generates many WARN messages li...
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http://issues.apache.org/jira/browse/HDFS-4780
Author: Kihwal Lee,
2013-05-24, 15:11
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[HDFS-4807] DFSOutputStream.createSocketForPipeline() should not include timeout extension on connect - HDFS - [issue]
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...In createSocketForPipeline(), connect() is called with a timeout set to (socket_timeout + read_extension * num_datanodes). Since it is simply connecting to a single node, it does not make se...
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http://issues.apache.org/jira/browse/HDFS-4807
Author: Kihwal Lee,
2013-05-24, 15:06
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[HDFS-4714] Log short messages in Namenode RPC server for exceptions meant for clients - HDFS - [issue]
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...Namenode can slow down significantly if a rogue client/job issues massive number of requests that will fail. E.g. permission denied, quota overage, etc. The major contributing factor i...
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http://issues.apache.org/jira/browse/HDFS-4714
Author: Kihwal Lee,
2013-05-24, 15:06
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[HDFS-4840] ReplicationMonitor gets NPE during shutdown - HDFS - [issue]
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...TestBlocksWithNotEnoughRacks occasionally fails during test tear down because RaplicationMonitor gets NPE.Seen at https://builds.apache.org/job/Hadoop-Hdfs-trunk/1406/....
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http://issues.apache.org/jira/browse/HDFS-4840
Author: Kihwal Lee,
2013-05-24, 01:18
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[HDFS-4477] Secondary namenode may retain old tokens - HDFS - [issue]
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...Upon inspection of a fsimage created by a secondary namenode, we've discovered it contains very old tokens. These are probably the ones that were not explicitly canceled. It may be rel...
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http://issues.apache.org/jira/browse/HDFS-4477
Author: Kihwal Lee,
2013-05-17, 13:41
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[HDFS-4786] WebHdfsFileSystem hangs on close() - HDFS - [issue]
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...When close() is called via fs shoutdown hook, the synchronized method, removeRenewAction() hangs. This is because DelegationTokenRenewer calls DelayQueue.take() inside a synchronized block. ...
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http://issues.apache.org/jira/browse/HDFS-4786
Author: Kihwal Lee,
2013-05-06, 14:48
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[HDFS-4713] Wrong server principal is used for rpc calls to namenode if HA is enabled - HDFS - [issue]
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...When various components are connecting to a namenode in a HA-enabled environment, a wrong server principal may be picked up. This result in SASL failure, since the client-side used a w...
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http://issues.apache.org/jira/browse/HDFS-4713
Author: Kihwal Lee,
2013-04-24, 20:50
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Re: [VOTE] Release Apache Hadoop 0.23.7 - HDFS - [mail # dev]
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...+1 I've checked out, built and deployed release-0.23.7-rc0 to a single node cluster. Ran a couple of sample jobs. Kihwal On 4/11/13 2:55 PM, "Thomas Graves" wrote: ...
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Author: Kihwal Lee,
2013-04-16, 19:45
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[HDFS-4185] Add a metric for number of active leases - HDFS - [issue]
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...We have seen cases of systematic open file leaks, which could have been detected if we have a metric that shows number of active leases....
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http://issues.apache.org/jira/browse/HDFS-4185
Author: Kihwal Lee,
2013-03-29, 15:27
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