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Re: HBase and Datawarehouse - HBase - [mail # user]
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...You wouldn't do that if colocating MR. It is one way to soak up "extra" RAM on a large RAM box, although I'm not sure I would recommend it (I have no personal experience trying it, yet). For...
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Author: Andrew Purtell,
2013-04-30, 18:30
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Re: HBase and Datawarehouse - HBase - [mail # user]
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...Rules of thumb for starting off safely and for easing support issues are really good to have, but there are no hard barriers or singular approaches: use Java 7 + G1GC, disable HBase blockcac...
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Author: Andrew Purtell,
2013-04-30, 17:38
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Re: HBase and Datawarehouse - HBase - [mail # user]
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...I don't wish to be rude, but you are making odd claims as fact as "mentioned in a couple of posts". It will be difficult to have a serious conversation. I encourage you to test your hypothes...
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Author: Andrew Purtell,
2013-04-30, 08:07
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Re: HBase and Datawarehouse - HBase - [mail # user]
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...Yes it is. This is why we have first class MapReduce integration and optimized scanners. Recent versions, like 0.94, also do pretty well with the 'O' part of OLAP. Urban Airship'...
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Author: Andrew Purtell,
2013-04-29, 18:08
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[HBASE-8209] Improve LoadTest extensibility - HBase - [issue]
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...This patch rolls up related changes: Allow classes extending TestMiniClusterLoadSequential to override how reader and writer threads are set up, including extending the reader and writers th...
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http://issues.apache.org/jira/browse/HBASE-8209
Author: Andrew Purtell,
2013-04-27, 16:55
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Re: [DISCUSS] Making hadoop 2 the default precommit for trunk ones we get green builds - HBase - [mail # dev]
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...+1 to Elliot's idea. On Thu, Apr 25, 2013 at 5:39 PM, Elliott Clark wrote: Best regards, - Andy Problems worthy of attack prove their worth by ...
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Author: Andrew Purtell,
2013-04-26, 03:47
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Re: All ok w/ thrift2 going away in trunk/0.95? - HBase - [mail # dev]
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...No. Consider KeyValue. A gateway could be a useful laboratory for experimenting with approaches like http://kentonv.github.io/capnproto/encoding.html . The difference is a gateway can ...
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Author: Andrew Purtell,
2013-04-25, 22:37
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[HBASE-6572] Tiered HFile storage - HBase - [issue]
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...Consider how we might enable tiered HFile storage. If HDFS has the capability, we could create certain files on solid state devices where they might be frequently accessed, especially for ra...
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http://issues.apache.org/jira/browse/HBASE-6572
Author: Andrew Purtell,
2013-04-25, 20:05
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Re: Compile does not work against Hadoop-1.0.0 - 1.0.2 - HBase - [mail # dev]
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...Sure. That's the question I have too: Is there anything about 1.0.3 or later which would be an incompatibility with 1.0.0 - 1.0.2 or prevent a rolling upgrade? On Thu, Apr 25, 2013 at...
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Author: Andrew Purtell,
2013-04-25, 18:28
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Re: All ok w/ thrift2 going away in trunk/0.95? - HBase - [mail # dev]
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...That's an interesting idea, although maybe not what you meant: If we had a PB only API gateway (e.g. no "PBUF" markers, no Writables anywhere, etc.) then this might be a way to evolve RPC to...
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Author: Andrew Purtell,
2013-04-25, 18:23
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