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[HDFS-6747] Display the most recent GC info on NN webUI - HDFS - [issue]
...It will be handy if the recent GC information is available on NN webUI. admins don't need to dig out GC logs....
http://issues.apache.org/jira/browse/HDFS-6747    Author: Ming Ma, 2014-07-25, 08:45
[HDFS-6722] Display readable last contact time for dead nodes on NN webUI - HDFS - [issue]
...For dead node info on NN webUI, admins want to know when the nodes became dead, to troubleshoot missing block, etc. Currently the webUI displays the last contact as "the unit of seconds sinc...
http://issues.apache.org/jira/browse/HDFS-6722    Author: Ming Ma, 2014-07-25, 07:36
[HDFS-6746] Support datanode list pagination and filtering for big clusters on NN webUI - HDFS - [issue]
...This isn't a major issue yet. Still it might be good to add support for pagination at some point and maybe some filtering. For example, that is useful to filter out live nodes that belong to...
http://issues.apache.org/jira/browse/HDFS-6746    Author: Ming Ma, 2014-07-25, 07:35
[HDFS-6745] Display the list of "very-under-replicated blocks" as well as the files on NN webUI - HDFS - [issue]
...Sometimes admins want to know the list of "very-under-replicated blocks" before major actions such as decommission; as these blocks are more likely to turn into missing blocks. "very-under-r...
http://issues.apache.org/jira/browse/HDFS-6745    Author: Ming Ma, 2014-07-25, 07:34
[HDFS-6744] Improve decommissioning nodes and dead nodes access on the new NN webUI - HDFS - [issue]
...The new NN webUI lists live node at the top of the page, followed by dead node and decommissioning node. From admins point of view:1. Decommissioning nodes and dead nodes are more interestin...
http://issues.apache.org/jira/browse/HDFS-6744    Author: Ming Ma, 2014-07-25, 07:28
[HDFS-6743] Put IP address into a new column on the new NN webUI - HDFS - [issue]
...The new NN webUI combines hostname and IP into one column in datanode list. It is more convenient for admins if the IP address can be put to a separate column, as in the legacy NN webUI....
http://issues.apache.org/jira/browse/HDFS-6743    Author: Ming Ma, 2014-07-25, 07:27
[HDFS-6742] Support sorting datanode list on the new NN webUI - HDFS - [issue]
...The legacy webUI allows sorting datanode list based on specific column such as hostname. It is handy for admins can find pattern more quickly, especially for big clusters....
http://issues.apache.org/jira/browse/HDFS-6742    Author: Ming Ma, 2014-07-25, 07:25
[HDFS-6751] NN WebUI enhancements - HDFS - [issue]
...The umbrella jira for NN webUI enhancements....
http://issues.apache.org/jira/browse/HDFS-6751    Author: Ming Ma, 2014-07-25, 07:23
[HDFS-6723] New NN webUI no longer displays decommissioned state for dead node - HDFS - [issue]
...Somehow the new webUI doesn't show if a given dead node is decommissioned or not. JMX does return the correct info. Perhaps some bug in dfshealth.html?...
http://issues.apache.org/jira/browse/HDFS-6723    Author: Ming Ma, 2014-07-24, 19:06
[HDFS-6721] Handle the situation where SBN is in zombie state - HDFS - [issue]
...Issue:In HA setup, when the first NN in the service list is the SBN, RPC client will always try the first NN, get StandbyException and then failover to the second NN in the service list, whi...
http://issues.apache.org/jira/browse/HDFS-6721    Author: Ming Ma, 2014-07-22, 17:36
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