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[expand - 1 more] - Re: Cascading failure leads to loss of all region servers - HBase - [mail # user]
...Hi Stack,  Thanks for the reply.  Unfortunately, our first instinct was to restart the region servers and when they came up it appears the compaction was able to succeed (perhaps b...
   Author: Bryan Beaudreault, 2012-04-12, 01:17
[expand - 1 more] - Re: NotServingRegionException during memstore flush - HBase - [mail # user]
...By tailing the HMaster logs while our attempted flush was being run, I noticed that the region it fails to get is actually referenced as being deleted shortly after a split is received: &nbs...
   Author: Bryan Beaudreault, 2012-04-07, 07:06
[expand - 1 more] - Re: Search by name - HBase - [mail # user]
...You could use a prefix on the rowkey.  I imagine there are multiple different field types, so just have an enum or something that enumerates the different field types you have, such as ...
   Author: Bryan Beaudreault, 2012-04-02, 21:04
[expand - 1 more] - Re: Dealing with large data sets in client - HBase - [mail # user]
...Thanks Stack, that's correct.  It is kind of hard to describe, though I guess it's easiest to think of it as a 2d array where the 2nd dimension is sorted.  I think your idea would ...
   Author: Bryan Beaudreault, 2012-03-28, 17:47
[expand - 1 more] - Re: HBase Region move() and Data Locality - HBase - [mail # user]
...Thanks for the response!  We are currently migrating analytics data from an old mysql setup to a new hbase-backed architecture.  We have a bunch of versions of the data running at ...
   Author: Bryan Beaudreault, 2012-03-05, 18:45
Scans and Bloom Filter - HBase - [mail # user]
...Hello,  We are looking at Bloom Filters and wondering if they are helpful when doing a sequential read (multi-row scan) or only when doing a Get for a single row.  It logically mak...
   Author: Bryan Beaudreault, 2012-02-16, 02:18
Re: One table or multiple tables? - HBase - [mail # user]
...At the risk of sounding contrary, I'll actually give voice to the opposite.  Like Jean said, you haven't said much about your read patterns.  I'd say understanding that is the firs...
   Author: Bryan Beaudreault, 2012-02-03, 00:47
Re: Could an EC2 machine to 4 times slower than local dev workstation? - HBase - [mail # user]
...We have also seen this in our testing, though we focused mainly on MR more than HBase.  Keep in mind that EC2 Compute Units are defined as follows:  The amount of CPU that is alloc...
   Author: Bryan Beaudreault, 2011-12-30, 16:54
Re: Data management strategy - HBase - [mail # user]
...The TTL is per column family, but I think you could still manipulate it further.  I have no idea if this will work in practice, but I've had success using versions/timestamps for other ...
   Author: Bryan Beaudreault, 2011-12-22, 06:41
Re: new to HBase/NoSQL, need some help with database design - HBase - [mail # user]
...Disclaimer: I'm not a master at HBase schema design, so someone more knowledgable feel free to refute the below.  I'd say the first thing you should do is take a step back; jumping into...
   Author: Bryan Beaudreault, 2011-12-16, 19:17
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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