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[HDFS-7734] Class cast exception in NameNode#main - HDFS - [issue]
...NameNode hits the following exception immediately on startup.15/02/03 15:50:25 ERROR namenode.NameNode: Failed to start namenode.java.lang.ClassCastException: org.apache.log4j.Logger cannot ...
http://issues.apache.org/jira/browse/HDFS-7734    Author: Arpit Agarwal, 2015-02-05, 15:24
[HDFS-7733] NFS: readdir/readdirplus return null directory attribute on failure - HDFS - [issue]
...NFS readdir and readdirplus operations return a null directory attribute on some failure paths. This causes clients to get a 'Stale file handle' error which can only be fixed by unmounting a...
http://issues.apache.org/jira/browse/HDFS-7733    Author: Arpit Agarwal, 2015-02-05, 15:24
[HDFS-7643] Test case to ensure lazy persist files cannot be truncated - HDFS - [issue]
...Task to add test case for HDFS-7634. Ensure that an attempt to truncate a file created with LAZY_PERSIST policy is failed by the NameNode. For reference see TestLazyPersistFiles#testAppendIs...
http://issues.apache.org/jira/browse/HDFS-7643    Author: Arpit Agarwal, 2015-01-25, 01:58
[HDFS-5423] Verify initializations of LocatedBlock/RecoveringBlock - HDFS - [issue]
...Tracking Jira to make sure we verify initialization of LocatedBlock and RecoveringBlock, possibly reorg the constructors to make missing initialization of StorageIDs less likely....
http://issues.apache.org/jira/browse/HDFS-5423    Author: Arpit Agarwal, 2015-01-21, 19:53
[HDFS-5153] Datanode should send block reports for each storage in a separate message - HDFS - [issue]
...When the number of blocks on the DataNode grows large we start running into a few issues: Block reports take a long time to process on the NameNode. In testing we have seen that a block repo...
http://issues.apache.org/jira/browse/HDFS-5153    Author: Arpit Agarwal, 2015-01-08, 23:35
[HDFS-7572] TestLazyPersistFiles#testDnRestartWithSavedReplicas is flaky on Windows - HDFS - [issue]
...Error MessageExpected: is <DISK>     but: was <RAM_DISK>Stacktracejava.lang.AssertionError: Expected: is <DISK>     but: was <RAM_DISK> ...
http://issues.apache.org/jira/browse/HDFS-7572    Author: Arpit Agarwal, 2015-01-06, 21:12
[HDFS-6101] TestReplaceDatanodeOnFailure fails occasionally - HDFS - [issue]
...Exception details in a comment below.The failure repros on both OS X and Linux if I run the test ~10 times in a loop....
http://issues.apache.org/jira/browse/HDFS-6101    Author: Arpit Agarwal, 2014-12-16, 11:13
[HDFS-7514] TestTextCommand fails on Windows - HDFS - [issue]
...TestTextCommand fails on WindowsError MessagePathname /D:/w/hbk/hadoop-hdfs-project/hadoop-hdfs/target/test/data/testText/weather.avro from D:/w/hbk/hadoop-hdfs-project/hadoop-hdfs/target/te...
http://issues.apache.org/jira/browse/HDFS-7514    Author: Arpit Agarwal, 2014-12-13, 15:25
[HDFS-5960] Fix TestRollingUpgrade - HDFS - [issue]
...TestRollingUpgrade fails when restarting the NN because OP_ROLLING_UPGRADE_START and OP_ROLLING_UPGRADE_FINALIZE are not expected.The fix is to start/finalize rolling upgrade when the corres...
http://issues.apache.org/jira/browse/HDFS-5960    Author: Arpit Agarwal, 2014-12-05, 02:13
[HDFS-4961] BlockId and Generation Stamp code should be moved to the blockmanagement package - HDFS - [issue]
...While reviewing the fix for HDFS-4645, Nicholas mentioned    The block id and generation stamp code actually should be moved to the blockmanagement package. See if you want to...
http://issues.apache.org/jira/browse/HDFS-4961    Author: Arpit Agarwal, 2014-11-13, 21:51
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB