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[HDFS-2256] we should add a wait for non-safe mode and call dfsadmin -report in start-dfs - HDFS - [issue]
...I think we should add a call to wait for safe mode exit and print the dfs report to show upgrades that are in progress....
http://issues.apache.org/jira/browse/HDFS-2256    Author: Owen OMalley, 2014-12-15, 18:35
[HDFS-3749] Disable check for jsvc on windows - HDFS - [issue]
...Jsvc doesn't make sense on windows and thus we should not require the datanode to start up under it on that platform....
http://issues.apache.org/jira/browse/HDFS-3749    Author: Owen OMalley, 2014-11-15, 00:51
[HDFS-2856] Fix block protocol so that Datanodes don't require root or jsvc - HDFS - [issue]
...Since we send the block tokens unencrypted to the datanode, we currently start the datanode as root using jsvc and get a secure (< 1024) port.If we have the datanode generate a nonce and ...
http://issues.apache.org/jira/browse/HDFS-2856    Author: Owen OMalley, 2014-11-15, 00:45
[HDFS-779] Automatic move to safe-mode when cluster size drops - HDFS - [issue]
...As part of looking at using Kerberos, we want to avoid the case where both the primary (and optional secondary) KDC go offline causing a replication storm as the DataNodes' service tickets t...
http://issues.apache.org/jira/browse/HDFS-779    Author: Owen OMalley, 2014-07-31, 00:04
[HDFS-43] Ignoring IOExceptions on close - HDFS - [issue]
...Currently in HDFS there are a lot of calls to IOUtils.closeStream that are from finally blocks. I'm worried that this can lead to data corruption in the file system. Take the first instance ...
http://issues.apache.org/jira/browse/HDFS-43    Author: Owen OMalley, 2014-07-17, 22:26
[HDFS-247] A tool to plot the locations of the blocks of a directory - HDFS - [issue]
...It would be very useful to have a command that we could give a hdfs directory to, that would use fsck to find the block locations of the data files in that directory and group them by host a...
http://issues.apache.org/jira/browse/HDFS-247    Author: Owen OMalley, 2014-07-17, 21:29
[HDFS-180] namenode -format does not reset version - HDFS - [issue]
...If I have a name node with layout version -8 and do "bin/hadoop namenode -format" it does not reset the version to -7....
http://issues.apache.org/jira/browse/HDFS-180    Author: Owen OMalley, 2014-07-17, 18:49
[HDFS-261] Side classes should be moved to separate files - HDFS - [issue]
...The following classes are "side" classes that aren't in files with the same name. This caused problems last night because ant compiled things in the wrong order and couldn't find one of the ...
http://issues.apache.org/jira/browse/HDFS-261    Author: Owen OMalley, 2014-07-17, 18:48
[HDFS-25] The FSDirectory should not have waitForReady - HDFS - [issue]
...The Name Node should lock the entire namesystem while the image is being loaded rather than using waitForReady in each method in the FSDirectory....
http://issues.apache.org/jira/browse/HDFS-25    Author: Owen OMalley, 2014-07-17, 17:53
Re: Moving to JDK7, JDK8 and new major releases - HDFS - [mail # dev]
...On Tue, Jun 24, 2014 at 4:44 PM, Alejandro Abdelnur wrote:I agree with Alejandro. Changing minimum JDKs is not an incompatible changeand is fine in the 2 branch. (Although I think it is woul...
   Author: Owen OMalley, 2014-06-25, 16:48
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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