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Memory setting recommendations for Accumulo / Hadoop - Accumulo - [mail # user]
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...Hello, I'm setting up accumulo on a small cluster where each node has 96GB of ram and 24 cores. Any recommendations on what memory settings to use for the accumulo processes, as ...
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Author: Mike Hugo,
2013-03-12, 17:35
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Re: Creating a Maven Archetype from Instamo - Accumulo - [mail # dev]
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...+1 for making the shell work with MiniAccumuloCluster We run a version of the MiniAccumuloCluster (forked from instamo and running with 1.4.2) as part of a webapp for simple developmen...
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Author: Mike Hugo,
2013-03-09, 04:51
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Re: Mappers for Accumulo - Accumulo - [mail # user]
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...See AccumuloInputFormat ArrayList ranges = new ArrayList();// populate array list of row ranges ...AccumuloInputFormat.setRanges(job, ranges); You should get one mapper per rang...
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Author: Mike Hugo,
2013-03-08, 18:17
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Re: Error replicating table - Accumulo - [mail # user]
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...Spot on Eric, You're right - I can't write anything to HDFS. Thanks for pointing me in the right direction!! Mike On Fri, Mar 8, 2013 at 9:13 AM, Eric Newton w...
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Author: Mike Hugo,
2013-03-08, 15:30
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Re: Error replicating table - Accumulo - [mail # user]
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...It doesn't appear to be down - I can hit http://server:50070/dfshealth.jsp- doesn't show any errors. Also scans work correctly and the system is returning data normally. Other th...
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Author: Mike Hugo,
2013-03-08, 15:04
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Error replicating table - Accumulo - [mail # user]
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...We have a test server that is just a single machine accumulo instance. This morning it began reporting the following error: java.io.IOException: File /accumulo/tables/!0/table_in...
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Author: Mike Hugo,
2013-03-08, 14:17
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Re: Cleanup of distcache after running map reduce jobs - Accumulo - [mail # user]
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...Thanks John! I ended up playing with some settings in mapred-site.xml, namely mapreduce.tasktracker.local.cache.numberdirectories and local.cache.size and that seems to have resolved o...
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Author: Mike Hugo,
2013-03-07, 20:18
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Cleanup of distcache after running map reduce jobs - Accumulo - [mail # user]
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...We noticed that after running several thousand map reduce jobs that our file system was filling up. The culprit is the libjars that are getting uploaded to the distributed cache for ea...
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Author: Mike Hugo,
2013-03-07, 17:37
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Re: Determining the cause of a tablet server failure - Accumulo - [mail # user]
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...I'm chalking this up to a mis-configured server. It looks like during the install on this server the accumulo-env.sh file was copied from the examples, but rather than setting editing ...
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Author: Mike Hugo,
2013-02-27, 20:17
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Determining the cause of a tablet server failure - Accumulo - [mail # user]
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...After running an ingest process via map reduce for about an hour or so, one of our tserver fails. It happens pretty consistently, we're able to replicate it without too much difficulty...
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Author: Mike Hugo,
2013-02-27, 17:10
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