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Re: HBase Upgrade from 0.94.x to 0.98.x: How to do rollback? - HBase - [mail # user]
...Not sure many people have tried that here. Sounds like it should work, though.Any chance you could set up a single node cluster (i.e. run a single node HDFS and HBase on the same machine) an...
   Author: lars hofhansl, 2014-07-09, 21:26
[expand - 4 more] - Re: DISCUSSION: 1.0.0 - HBase - [mail # dev]
...And since they are both strictly additional we can add them at any time later without risking breaking anything existing.________________________________ From: Enis S√∂ztutar To: "[EMAIL...
   Author: lars hofhansl, 2014-07-08, 08:47
[expand - 1 more] - Re: FileNotFoundException in bulk load - HBase - [mail # user]
...HDFS in Hadoop 1.0 only times out a bad DataNodes after 20 minutes by default. Until that time the NameNode will happily direct requests to a bad DataNode and each request then has to time o...
   Author: lars hofhansl, 2014-07-08, 08:27
Re: Using HBase in standalone mode in production - HBase - [mail # user]
...Chiming in late here. You might be better served with a database that was designed to run on a single host.HBase will run in standalone mode for testing purposes, but then it uses a local wr...
   Author: lars hofhansl, 2014-07-08, 08:20
[expand - 1 more] - Re: How Hbase achieves efficient random access? - HBase - [mail # user]
...Yeah. A block is quickly located from a few index block that are always cached, the block itself can be cached.A block is quickly searched for the KV in question.____________________________...
   Author: lars hofhansl, 2014-07-05, 22:53
Re: Can 0.94.9 enable multi-thread for memstore flush - HBase - [mail # user]
...I closed it because nobody seemed to care.If there's rekindled interest for this in 0.94 I would not be opposed backporting that feature.________________________________ From: Ted Yu To...
   Author: lars hofhansl, 2014-07-05, 12:14
[expand - 3 more] - Re: [NOTICE] Branching for 1.0 - HBase - [mail # dev]
...Either way works. Personally I'd remove the 1.0.0 tag since it adds confusion.I guess if you want to distinguish between 0.99 and 1.0 we'd need it, but when would we want that?(I.e. when do ...
   Author: lars hofhansl, 2014-07-05, 11:56
[ANNOUNCE] HBase 0.94.21 is available for download - HBase - [mail # dev]
...The HBase Team is pleased to announce the immediate release of HBase 0.94.21.Download it from your favorite Apache mirror [1].This release has also been pushed to Apache's maven repository.A...
   Author: lars hofhansl, 2014-07-03, 16:36
[expand - 3 more] - Re: [VOTE] The 1st hbase 0.94.21 release candidate is available for download - HBase - [mail # dev]
...Note that in order to compare apples to apples the instances should be configured the same.0.98 increases the block cache to 40% by default, enables scanner caching by default, and disabled ...
   Author: lars hofhansl, 2014-07-03, 15:33
Re: Disk space leak when using HBase and HDFS ShortCircuit - HBase - [mail # user]
...Sounds scary!HDP 2.1 ships with Hadoop 2.4.0, right?Sounds like a serious HDFS bug with SSR.Maybe we need to at least document this behavior and recommend settings in the HBase book.From: Gi...
   Author: lars hofhansl, 2014-06-27, 21:35
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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