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Major compactions and OS cache - HBase - [mail # user]
...Hi,  Over on http://www.larsgeorge.com/2010/05/hbase-file-locality-in-hdfs.html I saw  this bit:  "The most important factor is that HBase is not restarted frequently and that...
   Author: Otis Gospodnetic, 2011-02-16, 12:30
Tables "in memory", not cached, etc. - performance advice needed - HBase - [mail # user]
...Hi,  I've searched high and low (including on our own search-hadoop.com, Google,  HBase wiki), but could not find the details around marking a table as being "in  memory". &nb...
   Author: Otis Gospodnetic, 2011-01-19, 18:40
HBase performance metrics gotchas? - HBase - [mail # user]
...Hi,  Are there any gotchas around turning on HBase performance metrics  gathering/publishing (the stuff described on  http://hbase.apache.org/docs/current/metrics.html), such ...
   Author: Otis Gospodnetic, 2011-01-19, 17:30
Re: HTable.put(List<Put> puts) perform batch insert? - HBase - [mail # user]
...Hi,  Re HBaseHUT - Alex didn't mention it, but he did a really nice and clear writeup  of it in this post: http://blog.sematext.com/2010/12/16/deferring-processing-updates-to-incre...
   Author: Otis Gospodnetic, 2011-01-16, 10:17
[expand - 1 more] - Re: HBase / HDFS on EBS? - HBase - [mail # user]
...Hi,  I think this bit from Matt and the last bit from Phil about a drive-per-cpu-core  seem like strong arguments in favour of EBS. I don't have a good feel/experience for speed wh...
   Author: Otis Gospodnetic, 2011-01-05, 06:44
Re: Hbase/Hadoop cluster setup on AWS - HBase - [mail # user]
...Ah, Whirr and Hadoop/HBase on AWS.   Is this only applicable to using "raw"  HBase/Hadoop from ASF or can one use Whirr support for HBase/Hadoop deployment  to AWS with CDH? &...
   Author: Otis Gospodnetic, 2011-01-04, 03:31
Quick way to get last table row? - HBase - [mail # user]
...Hello,  What is the quickest way (a tool) to find the last or last N row in a table?  I'd love to be able to "tail -F a table" :)  Thanks, Otis Sematext :: http://sematext.com...
   Author: Otis Gospodnetic, 2010-12-26, 04:55
RS self-abort when DNs are down - HBase - [mail # user]
...Hello,  Is this normal:  2010-12-25 18:59:48,689 ERROR org.apache.hadoop.hdfs.DFSClient: Exception  closing file /hbase/.logs/example.com,60020,1293204828665/10.208.42.97%3A 6...
   Author: Otis Gospodnetic, 2010-12-25, 19:11
Re: Best strategy for row updates - HBase - [mail # user]
...Leo,  Maybe HBaseHUT can help, although you say "append", not "update" or "combine"...  See: http://blog.sematext.com/2010/12/16/deferring-processing-updates-to-increase-hbase-writ...
   Author: Otis Gospodnetic, 2010-12-24, 17:40
YCSB with 0.90 vs. old releases? - HBase - [mail # user]
...Hi,  With HBase 0.90 nearly out, I'm wondering if anyone has run YCSB recently, so we  can see how 0.90 compares to previous versions (not to mention other DBs)?  Thanks, Otis...
   Author: Otis Gospodnetic, 2010-12-24, 17:19
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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