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Re: persistence in Hbase - HBase - [mail # user]
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...Hi, Just for my own edification - isn't data loss always going to be possible due to caches present in HDDs and inability(?) for force them to flush. I believe I've read even fsy...
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Author: Otis Gospodnetic,
2013-01-15, 03:19
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Re: responsetooslow from regionserver - HBase - [mail # user]
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...For what it's worth, SPM for HBase may be of help here, as it graphs this sort of info - JVM GC, various server metrics, and a bunch of HBase metrics. Otis Solr & ElasticSearch Support...
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Author: Otis Gospodnetic,
2013-01-05, 03:40
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Re: H-Rider / HTable UI - HBase - [mail # user]
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...If this were to become a part of Apache HBase, HBase devs would have to maintain it. And I have a feeling nobody really wants to maintain this here.... :) Otis HBASE Performance ...
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Author: Otis Gospodnetic,
2012-12-12, 21:34
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How to pick which region(s) to major compact? - HBase - [mail # user]
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...Hi, If you want to do major compaction on a single region at a time (to minimize the impact on the cluster), how do you pick which region to compact? What should one look for in ...
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Author: Otis Gospodnetic,
2012-12-12, 20:19
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How to know it's time for a major compaction? - HBase - [mail # user]
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...Hello, What are the main metrics/signals people use/look at to say "OK, I really need to do a major compaction now", other than "hm, performance is not good, let's try major compaction...
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Author: Otis Gospodnetic,
2012-12-12, 20:15
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Re: 答复: how to store 100billion short text messages with hbase - HBase - [mail # user]
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...Hello, If you want to use Lucene....why not use Lucene, or one of the fancy search servers built on top of it - Solr(Cloud), ElasticSearch, or SenseiDB? You can easily shard the index ...
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Author: Otis Gospodnetic,
2012-12-06, 21:45
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Re: How to monitor total disk access in HBase? - HBase - [mail # user]
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...Hi, I was just trawling HBase JIRA for this info after one happy user of SPM for HBase asked if we could show read requests separately from write requests. See https://issues.apa...
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Author: Otis Gospodnetic,
2012-11-13, 02:01
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Re: How to check if a major_compact is done? - HBase - [mail # user]
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...Hi, https://github.com/aravind/hbase_compact may have what you need (thanks Jeremy) Otis Search Analytics - http://sematext.com/search-analytics/index.html Performance Monitoring...
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Author: Otis Gospodnetic,
2012-11-08, 22:03
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Re: How to check if a major_compact is done? - HBase - [mail # user]
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...Hi, I *think* SPM for HBase shows this. URL in signature. I'm guessing Cloudera Manager may also show this if you are using CDH. Otherwise, you can just read from JMX...
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Author: Otis Gospodnetic,
2012-11-08, 16:27
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Re: Compaction throttling and per-region compaction automation - HBase - [mail # user]
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...Thanks Jeremy (I see you everywhere I turn!) https://issues.apache.org/jira/browse/HBASE-5867 sounds like there is compaction throttling in 0.96.0, no? Lucene faces very similar ...
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Author: Otis Gospodnetic,
2012-11-06, 19:06
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