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Re: Region server crash while syncing HLog - HBase - [mail # user]
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...Varun, I suspect there might be a FATAL or ERROR above that message? That message typically means the HLog can't write to HDFS, you may want to look at the DN logs around ...
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Author: Kevin O'dell,
2013-01-23, 17:59
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Re: write throughput in cassandra, understanding hbase - HBase - [mail # user]
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...Hi S Ahmed, How are you today? I wanted to echo what Lars said Most of these tests have an agenda. With that being said, have you done an of your own internal testin...
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Author: Kevin O'dell,
2013-01-22, 19:06
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Re: [ANNOUNCE] New Apache HBase PMC members: Jimmy Xiang and Nicolas Liochon - HBase - [mail # user]
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...Awesome work! On Mon, Jan 21, 2013 at 3:59 PM, Patrick Angeles wrote: Kevin O'Dell Customer Operations Engineer, Cloudera...
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Author: Kevin O'dell,
2013-01-21, 21:02
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Re: Just joined the user group and have a question - HBase - [mail # user]
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...Chalcy, Glad to have you aboard. One thing to look at is your max map and reduce slots that you are currently allowing. Typically, we look at the CPU architecture and say if it ...
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Author: Kevin O'dell,
2013-01-17, 17:32
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Re: Hbase hbck -repair slow - HBase - [mail # user]
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...If you have only lost your META, I would just use: hbase hbck -fixMeta -fixAssignments This will rebuild your META On Tue, Jan 15, 2013 at 10:53 AM, Lashing wrote: &n...
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Author: Kevin O'dell,
2013-01-15, 15:56
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Re: Hbase hbck -repair slow - HBase - [mail # user]
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...Lashing, Without knowning the exact errors you are seeing it would be hard to make recommendations. If it is just META that is messed up you can use: hbase hbck -fix...
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Author: Kevin O'dell,
2013-01-15, 15:20
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Re: MR missing lines - HBase - [mail # user]
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...Probably best to create some client side logging in the MR job to track this down. On Dec 16, 2012 7:52 AM, "Jean-Marc Spaggiari" wrote: ...
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Author: Kevin O'dell,
2012-12-16, 14:05
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Re: How to design a data warehouse in HBase? - HBase - [mail # user]
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...Correct, Impala relies on the Hive Metastore. On Thu, Dec 13, 2012 at 11:38 AM, Manoj Babu wrote: Kevin O'Dell Customer Operations Engineer, Cloudera...
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Author: Kevin O'dell,
2012-12-13, 16:42
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Re: How to design a data warehouse in HBase? - HBase - [mail # user]
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...Mohammad, I am not sure you are thinking about Impala correctly. It still uses HDFS so your data increasing over time is fine. You are not going to need to tune for ...
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Author: Kevin O'dell,
2012-12-13, 15:30
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Re: How to design a data warehouse in HBase? - HBase - [mail # user]
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...To Mohammad's point. You can use HBase for quick scans of the data. Hive for your longer running jobs. Impala over the two for quick adhoc searches. On Thu, Dec 13, 2...
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Author: Kevin O'dell,
2012-12-13, 14:47
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