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Re: Upgrading a coprocessor - HBase - [mail # user]
...Hi Hayden,We ran into the same thing & ended up going with a rudimentary cp deployscript for appending epoch to the cp name, placing on hdfs, anddisabling/modifying hbase table/enablingHeres...
   Author: iain wright, 2014-10-28, 23:52
[expand - 4 more] - Re: Trouble using copyTable to seed existing table to replication peer - HBase - [mail # user]
...It turned out our fs.defaultFS was in hdfs-site.xml and not core-site.xmlThis makes sense since the application manager was dumping the jobresources onto its local FS, also hdfs dfs -ls / wa...
   Author: iain wright, 2014-10-01, 10:30
Re: Shout-out for Misty - HBase - [mail # dev]
...As an admin constantly referring to these docs, Thank you!Iain WrightThis email message is confidential, intended only for the recipient(s)named above and may contain information that is pri...
   Author: iain wright, 2014-08-21, 01:28
Re: Are coprocessor really bad? - HBase - [mail # user]
...Pretty sure it depends on your implementation.Its powerful but you have the ability to shoot yourself in the foot.One example is, we tried watching post put on a table to increment valuesin ...
   Author: iain wright, 2014-03-15, 22:38
[HBASE-9046] Coprocessors can't be upgraded in service reliably - HBase - [issue]
...My team and another user from the mailing list have run into an issue where replacing the coprocessor jar in HDFS and reloading the table does not load the latest jar. It may load the latest...
http://issues.apache.org/jira/browse/HBASE-9046    Author: iain wright, 2014-01-16, 18:42
Namenode won't start after unclean shutdown of RS - HBase - [mail # user]
...Hi folks,  One of our RS/DN/TT nodes went down dirty (kernel panic). Users contacted about reports failing, and i saw wierd logs in the jobtracker for "pending shutdown" etc.  Proc...
   Author: iain wright, 2013-12-07, 01:38
[expand - 1 more] - Re: Some regions keep using an older version of coprocessor. - HBase - [mail # user]
...Filed bug report for confirmation: https://issues.apache.org/jira/browse/HBASE-9046  Happy to supply any additional info as requested  Best, iain  Iain Wright Cell: (562) 852-...
   Author: iain wright, 2013-07-26, 18:56
Re: how many severs in a hbase cluster - HBase - [mail # user]
...Hi Mohammad,  I am curious why you chose not to put the third ZK on the NN+JT? I was planning on doing that on a new cluster and want to confirm it would be okay.   Iain Wright Cel...
   Author: iain wright, 2013-06-22, 22:37
[expand - 1 more] - Re: flume+hbase+zookeeper, can't hang on to zookeeper session - HBase - [mail # user]
...Below is a debug level log of flume trying to connect. Could we experiencing this bug: https://issues.apache.org/jira/browse/ZOOKEEPER-1550  We are using openjdk version "1.7.0_02" Open...
   Author: iain wright, 2012-10-08, 22:56
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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