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[expand - 2 more] - Re: Check if a region is compacting or not - HBase - [mail # user]
...Search the reagion name in regionserver logs, if there are starting compaction messages but no matched finishing messages, the region is compacting.      Frank Chow  From: Sandeep L Date...
...: 2013-09-04 13:32 To: [EMAIL PROTECTED] Subject: Check if a region is compacting or not Hi, I would like to check if a region is compacting or not. Can some please let me know how check this...
   Author: Frank Chow, 2013-09-04, 12:26
[expand - 5 more] - Will compaction block memstore flush to disk - HBase - [mail # user]
...Hi ,   Will compaction(minor or major) block memstore flush to disk(or HDFS)? That's, when region server is doing compaction,  is it allowed to flush memstore to HDFS?  Let's base...
... the answer in HBase 0.94. Here are some info I dig out, but I'm not sure of the anwser: hbase.hstore.compactionThreshold:(0.89)     If more than this number of HStoreFiles in any one HStore (one...
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   Author: vito, 2014-07-14, 03:57
[expand - 1 more] - Major vs Minor compactions - HBase - [mail # user]
...Hi,  I am working on some compaction coprocessors for a column family with versions set to 1. I am using the preCompact hook to wrap a scanner around the compaction scanner.  I wanted...
... to know what to expect from the minor compaction output. Can I assume the following: 1) Versions for each cell will be 1 2) Delete markers will be retained 3) Corresponding versions older than...
   Author: Varun Sharma, 2013-05-29, 20:27
[expand - 2 more] - HBase (Compaction and Region) Event Listeners - HBase - [mail # user]
... that would allow one to listen for thing like compactions.... or any other important HBase events? Thanks, Otis Performance Monitoring * Log Analytics * Search Analytics Solr & Elasticsearch Support...
   Author: Otis Gospodnetic, 2014-05-29, 03:40
[expand - 4 more] - Re: Question about compactions - HBase - [mail # user]
...Hi,  A few pointers: http://search-hadoop.com/m/heoc617XV29/otis+compactions&subj=Re+How+to+check+if+a+major_compact+is+done+ http://search-hadoop.com/m/BDx4S1jMjF92/otis+compactions&subj=How+to+know+it+s+time+for+a+major+compaction...
...+ http://search-hadoop.com/m/9oN1DqPx2R1/otis+compactions&subj=Compaction+throttling+and+per+region+compaction+automation http://search-hadoop.com/m/u0hsW82Vcr/otis+compactions&subj=How+to+pick+which+region+s+to+major+compact...
   Author: Otis Gospodnetic, 2013-03-22, 01:13
[expand - 13 more] - Re: HBase without compactions? - HBase - [mail # user]
...He asked for a compactionless version.  You still have compactions w a stripe compaction.    On Feb 18, 2013, at 10:54 PM, Ted Yu  wrote:  ...
   Author: Michael Segel, 2013-02-19, 05:46
[expand - 3 more] - Problem In Understanding Compaction Process - HBase - [mail # user]
...Hi: Guys        I have some problem in understanding the compaction process, Can someone shed some light on me, much appreciate. Here is the problem:        Region Server after successfully...
... generate the final compacted file, it going through two steps:        1. move the above compacted file into region's directory        2. delete replaced files.         the above two steps...
   Author: Anty, 2013-02-20, 03:10
[expand - 5 more] - Never ending major compaction? - HBase - [mail # user]
..., and there is a lot of horsepower behind it.  I asked a major_compaction few hours ago. Let's say, about 5 hours ago. and it's still compacting! But all servers activities seems to be null. CPU usage...
... is almost 0.  There is nothing on the master logs.  How can I see what's going on? Is there a way to see the compaction queue?  JM ...
   Author: Jean-Marc Spaggiari, 2013-01-01, 19:42
[expand - 8 more] - Checking major compaction - HBase - [mail # user]
...Hi all,  Is there a way to check if major compaction is running or not on a table.  Thank you Kiran Sarvabhotla  ...
   Author: kiran, 2012-10-18, 06:12
[expand - 2 more] - Reducing compaction queue more efficiently - HBase - [mail # user]
... entries in my compaction queue (~ 200 per regionserver). Unfortunately, HBase now is slow when pushing new data into it and it just compacts with 0.02 per second (getting also "WARN org...
....apache.hadoop.ipc.HBaseServer: (operationTooSlow)" in log files). If I want to trigger the compaction manually, there's nothing happening: hbase(main):001:0> compact 'images' 0 row(s) in 1.3690 seconds hbase(main):002:0> major_compact...
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   Author: Sven Herzky, 2014-03-27, 11:37
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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