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Re: Status of CheckpointNode and BackupNode - HDFS - [mail # dev]
...I'm also in favor of removing them. I've fielded many questions from users about their status, how they compare to other daemons that exist, etc. All I've seen them do is increase confusion ...
   Author: Aaron T. Myers, 2012-10-16, 23:51
[HDFS-3698] TestHftpFileSystem is failing in branch-1 due to changed default secure port - HDFS - [issue]
...This test is failing since the default secure port changed to the HTTP port upon the commit of HDFS-2617....
http://issues.apache.org/jira/browse/HDFS-3698    Author: Aaron T. Myers, 2012-09-29, 00:46
[HDFS-3026] HA: Handle failure during HA state transition - HDFS - [issue]
...This JIRA is to address a TODO in NameNode about handling the possibility of an incomplete HA state transition....
http://issues.apache.org/jira/browse/HDFS-3026    Author: Aaron T. Myers, 2012-09-25, 10:26
[HDFS-3878] Add an administrative command to download finalized edit log segments from the NN - HDFS - [issue]
...Similarly to the `hdfs dfsadmin -fetchImage' command added in HDFS-2941, it would be nice to have an admin command capable of fetching edit log segments. This could be useful, for example, f...
http://issues.apache.org/jira/browse/HDFS-3878    Author: Aaron T. Myers, 2012-09-24, 14:50
[HDFS-3926] QJM: Add user documentation for QJM - HDFS - [issue]
...We should add user-facing documentation for how to configure/use the QJM....
http://issues.apache.org/jira/browse/HDFS-3926    Author: Aaron T. Myers, 2012-09-14, 00:03
[HDFS-3433] GetImageServlet should allow administrative requestors when security is enabled - HDFS - [issue]
...Currently the GetImageServlet only allows the NN and checkpointing nodes to connect. Since we now have the fetchImage command in DFSAdmin, we should also allow administrative requests as wel...
http://issues.apache.org/jira/browse/HDFS-3433    Author: Aaron T. Myers, 2012-09-07, 22:09
[HDFS-3444] hdfs groups command doesn't work with security enabled - HDFS - [issue]
...When one tries to run `hdfs groups' with security enabled, you'll get an error like the following:java.io.IOException: Failed to specify server's Kerberos principal name;...
http://issues.apache.org/jira/browse/HDFS-3444    Author: Aaron T. Myers, 2012-09-07, 22:09
[HDFS-3852] TestHftpDelegationToken is broken after HADOOP-8225 - HDFS - [issue]
...It's been failing in all builds for the last 2 days or so. Git bisect indicates that it's due to HADOOP-8225....
http://issues.apache.org/jira/browse/HDFS-3852    Author: Aaron T. Myers, 2012-09-07, 22:02
[HDFS-2978] The NameNode should expose name dir statuses via JMX - HDFS - [issue]
...We currently display this info on the NN web UI, so users who wish to monitor this must either do it manually or parse HTML. We should publish this information via JMX....
http://issues.apache.org/jira/browse/HDFS-2978    Author: Aaron T. Myers, 2012-09-07, 22:02
[HDFS-3037] TestMulitipleNNDataBlockScanner#testBlockScannerAfterRestart is racy - HDFS - [issue]
...In this test, we restart a DN in a running cluster, call MiniDFS#waitActive, and then assert some things about the DN. Trouble is, MiniDFSCluster#waitActive won't wait any time at all, since...
http://issues.apache.org/jira/browse/HDFS-3037    Author: Aaron T. Myers, 2012-09-07, 22:02
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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