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[HDFS-6026] Fix TestDFSUpgrade and TestDataNodeRollingUpgrade - HDFS - [issue]
...These two unit tests failed after HDFS-6000 changes the expectation of SafeMode for non-HA setup: the NN now needs to be in SafeMode for rolling upgrade prepare....
http://issues.apache.org/jira/browse/HDFS-6026    Author: Jing Zhao, 2014-02-27, 03:11
[HDFS-6000] Avoid saving namespace when starting rolling upgrade - HDFS - [issue]
...Currently when administrator sends the "rollingUpgrade start" command to the active NN, the NN will trigger a checkpoint (the rollback fsimage). This will cause NN not able to serve for a pe...
http://issues.apache.org/jira/browse/HDFS-6000    Author: Jing Zhao, 2014-02-25, 22:01
[HDFS-5399] Revisit SafeModeException and corresponding retry policies - HDFS - [issue]
...Currently for NN SafeMode, we have the following corresponding retry policies: In non-HA setup, for certain API call ("create"), the client will retry if the NN is in SafeMode. Specifically,...
http://issues.apache.org/jira/browse/HDFS-5399    Author: Jing Zhao, 2014-02-24, 20:58
[HDFS-5999] Do not create rollback fsimage when it already exists - HDFS - [issue]
...Currently in FSEditLogLoader#applyEditLogOp, if the op is OP_START_LOG_SEGMENT, we do an extra rollback fsimage with condition "totalEdits > 1".This may cause some issue when we restart a...
http://issues.apache.org/jira/browse/HDFS-5999    Author: Jing Zhao, 2014-02-23, 21:36
[HDFS-5985] SimulatedFSDataset#disableAndPurgeTrashStorage should not throw UnsupportedOperationException - HDFS - [issue]
...Instead, we can let the method do nothing. This can fix part of the failed unit tests in https://issues.apache.org/jira/browse/HDFS-5535?focusedCommentId=13906717&page=com.atlassian.jira...
http://issues.apache.org/jira/browse/HDFS-5985    Author: Jing Zhao, 2014-02-20, 22:07
[HDFS-5984] Fix TestEditLog and TestStandbyCheckpoints - HDFS - [issue]
...This jira aims to fix current test failures in TestEditLog, TestStandbyCheckpoints, and TestBookKeeperHACheckpoints. These failures are caused by changes in the NameNode side....
http://issues.apache.org/jira/browse/HDFS-5984    Author: Jing Zhao, 2014-02-20, 21:42
[HDFS-5980] Rollback does not need to load edits - HDFS - [issue]
...Now with the special rollback fsimage we do not need to load edits while doing rollback of rolling upgrade....
http://issues.apache.org/jira/browse/HDFS-5980    Author: Jing Zhao, 2014-02-20, 03:58
[HDFS-5966] Fix rollback of rolling upgrade in NameNode HA setup - HDFS - [issue]
...This jira does the following:1. When do rollback for rolling upgrade, we should call FSEditLog#initJournalsForWrite when initializing editLog (just like Upgrade in HA setup).2. After the rol...
http://issues.apache.org/jira/browse/HDFS-5966    Author: Jing Zhao, 2014-02-19, 19:43
[HDFS-5968] Fix rollback of rolling upgrade in NameNode HA setup - HDFS - [issue]
...This jira does the following:1. When do rollback for rolling upgrade, we should call FSEditLog#initJournalsForWrite when initializing editLog (just like Upgrade in HA setup).2. After the rol...
http://issues.apache.org/jira/browse/HDFS-5968    Author: Jing Zhao, 2014-02-19, 00:49
[HDFS-5920] Support rollback of rolling upgrade in NameNode and JournalNodes - HDFS - [issue]
...This jira provides rollback functionality for NameNode and JournalNode in rolling upgrade.Currently the proposed rollback for rolling upgrade is:1. Shutdown both NN2. Start one of the NN usi...
http://issues.apache.org/jira/browse/HDFS-5920    Author: Jing Zhao, 2014-02-18, 21:29
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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