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[HDFS-8782] Upgrade to block ID-based DN storage layout delays DN registration
...We have seen multiple incidents at production sites that there are long delays for DNs to register to the NN when upgrading to post 2.6 release.Further investigation shows that the DN is blo...
, 2016-03-31, 10:05
[HDFS-7060] Avoid taking locks when sending heartbeats from the DataNode
...We're seeing the heartbeat is blocked by the monitor of FsDatasetImpl when the DN is under heavy load of writes: java.lang.Thread.State: BLOCKED (on object monitor) ...
, 2016-03-29, 05:28
[HDFS-9129] Move the safemode block count into BlockManager
...The SafeMode needs to track whether there are enough blocks so that the NN can get out of the safemode. These fields can moved to the BlockManager class....
, 2016-03-22, 12:30
[HDFS-10184] Introduce unit tests framework for HDFS UI
...The current HDFS UI is based on HTML5 and it does not have unit tests yet. Occasionally things break and we can't catch it. We should investigate and introduce unit test frameworks such as M...
, 2016-03-22, 10:14
[HDFS-9048] DistCp documentation is out-of-dated
...There are a couple issues with the current distcp document: It recommends hftp / hsftp filesystem to copy data between different hadoop version. hftp / hsftp have been deprecated in the flav...
, 2016-03-03, 10:14
[HDFS-9815] Move o.a.h.fs.Hdfs to hadoop-hdfs-client
...the o.a.h.fs.Hdfs is used by the FileContext API. It should belong to the hadoop-hdfs-client module....
, 2016-02-16, 19:01
Re: HDFS Abstract Filesystem and hadoop-client
- [mail # dev]
...Thanks for catching them. I think it should be moved as well. FiledHDFS-9815 to track the effort.~HaohuiOn Mon, Feb 15, 2016 at 4:01 AM, Steve Loughran wrote: ...
, 2016-02-16, 05:56
[HDFS-6200] Create a separate jar for hdfs-client
...Currently the hadoop-hdfs jar contain both the hdfs server and the hdfs client. As discussed in the hdfs-dev mailing list (http://mail-archives.apache.org/mod_mbox/hadoop-hdfs-dev/201404.mbo...
, 2016-02-16, 05:55
Re: Review HDFS-7588 please?
- [mail # dev]
...Thanks for the ping. I'll take a look at it.Regards,HaohuiOn Fri, Feb 12, 2016 at 3:56 PM, Ravi Prakash wrote: ...
, 2016-02-15, 06:23
[HDFS-6565] Use jackson instead jetty json in hdfs-client
...hdfs-client should use Jackson instead of jetty to parse JSON....
, 2016-01-30, 02:50
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