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Re: [DISCUSS] Resolving the divergences for web-related code between branch-2 and trunk - HDFS - [mail # dev]
...+1 on removing the old JSP UI.  Thanks.Tsz-WoOn Wednesday, October 1, 2014 3:34 PM, Haohui Mai  wrote:  ...
   Author: Tsz Wo, 2014-10-01, 23:04
Re: Thinking ahead to hadoop-2.6 - HDFS - [mail # dev]
...Hi,I am worry about KMS and transparent encryption since there are quite many bugs discovered after it got merged to branch-2.  It gives us an impression that the feature is not yet wel...
   Author: Tsz Wo, 2014-09-24, 02:30
[HDFS-6042] Fix rolling upgrade documentation and error messges - HDFS - [issue]
...Fix some minor bugs in the user documentation and exception messages: When the layout version is mismatched, mention the new "-rollingUpgrade started" option in the exception message. For th...
http://issues.apache.org/jira/browse/HDFS-6042    Author: Tsz Wo, 2014-03-03, 22:31
[HDFS-6004] Change DFSAdmin for rolling upgrade commands - HDFS - [issue]
...When rolling upgrade is initiated, a image is created for rollback.  We propose the following changes for the DFSAdmin for rolling upgrade commands: change "dfsadmin -rollingUpgrade sta...
http://issues.apache.org/jira/browse/HDFS-6004    Author: Tsz Wo, 2014-02-24, 22:05
[HDFS-5992] Fix TestOfflineEditsViewer and NPE in MD5FileUtils - HDFS - [issue]
...MD5FileUtils.readStoredMd5(File md5File)  may return null but the callers may not check it.TestOfflineEditsViewer needs new editsStored files....
http://issues.apache.org/jira/browse/HDFS-5992    Author: Tsz Wo, 2014-02-22, 22:32
[HDFS-5987] Fix findbugs warnings in Rolling Upgrade branch - HDFS - [issue]
...RV org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceStorage.restoreBlockFilesFromTrash(File) ignores exceptional return value of java.io.File.mkdirs()RV org.apache.hadoop.hdfs.server.d...
http://issues.apache.org/jira/browse/HDFS-5987    Author: Tsz Wo, 2014-02-20, 23:21
[HDFS-5974] Fix compilation error after merge - HDFS - [issue]
...[ERROR] COMPILATION ERROR : [INFO] -------------------------------------------------------------[ERROR] /Users/szetszwo/hadoop/commit-HDFS-5535/hadoop-hdfs-project/hadoop-hdfs/src/main/java/...
http://issues.apache.org/jira/browse/HDFS-5974    Author: Tsz Wo, 2014-02-19, 21:44
[HDFS-5889] When rolling upgrade is in progress, standby NN should create checkpoint for downgrade. - HDFS - [issue]
...After rolling upgrade is started and checkpoint is disabled, the edit log may grow to a huge size.  It is not a problem if rolling upgrade is finalized normally since NN keeps the curre...
http://issues.apache.org/jira/browse/HDFS-5889    Author: Tsz Wo, 2014-02-18, 20:47
[HDFS-5945] Add rolling upgrade information to fsimage - HDFS - [issue]
...When rolling upgrade is in progress, the standby namenode may create checkpoint.  The rolling upgrade information should be added to fsimage in order to support namenode restart and con...
http://issues.apache.org/jira/browse/HDFS-5945    Author: Tsz Wo, 2014-02-18, 20:15
[HDFS-5905] Upgrade and rolling upgrade should not be allowed simultaneously - HDFS - [issue]
...The existing upgrade/finalize mechanism and the new rolling upgrade mechanism are two distinct features for upgrading the HDFS software.  They cannot be executed simultaneously....
http://issues.apache.org/jira/browse/HDFS-5905    Author: Tsz Wo, 2014-02-18, 20:15
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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