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https://issues.apache.org/jira/browse/HBASE-4298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13143331#comment-13143331
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stack commented on HBASE-4298:
------------------------------
I ran TestLogRolling locally and can't get it to fail. It failed with 'Cannot
lock storage
/home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/trunk/target/test-data/7f164eb7-a297-40fb-89ff-6bd9a0e331db/dfscluster_e7b1f239-5bca-46c6-abfb-f8237c09a7ce/dfs/data/data3.
The directory is already locked.'
TestDistributedLogSplitting fails with too many open files but ulimit for files
says 32k?
{code}
asf011.sp2.ygridcore.net
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 20
file size (blocks, -f) unlimited
pending signals (-i) 16382
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 32768
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 2048
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
32768
Running in Jenkins mode
{code}
This is good to go I'd say.
> Support to drain RS nodes through ZK
> ------------------------------------
>
> Key: HBASE-4298
> URL: https://issues.apache.org/jira/browse/HBASE-4298
> Project: HBase
> Issue Type: Improvement
> Components: master
> Affects Versions: 0.90.4
> Environment: all
> Reporter: Aravind Gottipati
> Priority: Critical
> Labels: patch
> Fix For: 0.92.0, 0.90.5
>
> Attachments: 4298-trunk-v2.txt, 4298-trunk-v3.txt, 90_hbase.patch,
> drainingservertest-v2.txt, drainingservertest.txt, trunk_hbase.patch
>
>
> HDFS currently has a way to exclude certain datanodes and prevent them from
> getting new blocks. HDFS goes one step further and even drains these nodes
> for you. This enhancement is a step in that direction.
> The idea is that we mark nodes in zookeeper as draining nodes. This means
> that they don't get any more new regions. These draining nodes look exactly
> the same as the corresponding nodes in /rs, except they live under /draining.
> Eventually, support for draining them can be added. I am submitting two
> patches for review - one for the 0.90 branch and one for trunk (in git).
> Here are the two patches
> 0.90 -
> https://github.com/aravind/hbase/commit/181041e72e7ffe6a4da6d82b431ef7f8c99e62d2
> trunk -
> https://github.com/aravind/hbase/commit/e127b25ae3b4034103b185d8380f3b7267bc67d5
> I have tested both these patches and they work as advertised.
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