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Re: Hbase configuration for large memory machine - HBase - [mail # user]
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...There are two choices: 1) Try to use memory file system, and build hdfs upon it. 2) Try to open multi-rs in each physical machine. Good luck. 2013/6/8 Nai Yan. &nb...
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Author: Bing Jiang,
2013-06-09, 04:40
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Re: Extending HBase Metrics Framework - HBase - [mail # user]
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...1) Metrics infos have been collected from HMaster\RS, and covering rpc, jvm, hbase functional module (like compaction\flush\request Count\DataBlock read &&write etc). 2) You can set me...
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Author: Bing Jiang,
2013-06-06, 07:42
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Re: Risk about RS logs clean ? - HBase - [mail # user]
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...Hi,Sergey. The version of hbase in our environment is 0.94.3, and the FSHLog.java comes from 0.95 or version above. And it adds such codes in FSHLog::cleanOldLogs, long oldestOutstandi...
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Author: Bing Jiang,
2013-05-23, 01:27
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Risk about RS logs clean ? - HBase - [mail # user]
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...Hi,all I want to know how RS eliminates the unnecessary hlogs. lastSeqNum stores and outputfiles stores So, how does rs guarantee that the kv in the hlog to be cleared hav...
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Author: Bing Jiang,
2013-05-22, 12:39
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Re: GET performance degrades over time - HBase - [mail # user]
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...Have you checked your HBase environment? I think it perhaps come from: 1) System uses more swap frequently when your continue to execute Gets operation? 2) check the setting "hfile.block.cac...
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Author: Bing Jiang,
2013-05-16, 10:49
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Re: Error about rs block seek - HBase - [mail # user]
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...hi, Anoop. I do not handle or change the hbase checksum. So I want to know if I set block size at the beginning of creating tables, does something make troubles? 2013/5/13 Anoop...
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Author: Bing Jiang,
2013-05-13, 08:06
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Re: Error about rs block seek - HBase - [mail # user]
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...Hi,all Before the exception stack, there is an Error log: 2013-05-13 00:00:14,491 ERROR org.apache.hadoop.hbase.io.hfile.HFileReaderV2: Current pos = 32651; currKeyLen = 45; currValLen = 80;...
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Author: Bing Jiang,
2013-05-13, 06:30
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Re: Error about rs block seek - HBase - [mail # user]
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...hi, Ted. No data block encoding, our table config below: User Table Description CrawlInfo {NAME => 'CrawlInfo', DEFERRED_LOG_FLUSH => 'true', MAX_FILESIZE => '3435973836...
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Author: Bing Jiang,
2013-05-13, 01:50
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Re: Error about rs block seek - HBase - [mail # user]
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...Hi, JM. Our jdk version is 1.6.0_38 2013/5/13 Jean-Marc Spaggiari Bing Jiang Tel：(86)134-2619-1361 weibo: http://weibo.com/jiangbinglover BLOG: http://blog.sina.co...
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Author: Bing Jiang,
2013-05-13, 01:47
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Re: Error about rs block seek - HBase - [mail # user]
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...Yes, we use hbase-0.94.3 , and we change block.size from 64k to 32k. 2013/5/13 Ted Yu Bing Jiang Tel：(86)134-2619-1361 weibo: http://weibo.com/jiangbinglover...
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Author: Bing Jiang,
2013-05-13, 01:38
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