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Re: the occasion of the major compact? - HBase - [mail # user]
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...Yong, Can you please explain why you want to disable major compactions? What are the problems that you're currently seeing or what are you worried will happen if a major compacti...
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Author: Nicolas Spiegelberg,
2012-01-26, 19:02
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Re: Major Compaction Concerns - HBase - [mail # dev]
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...When you have an IO problem, there are multiple pieces at play that you can adjust: Write: HLog, Flush, Compaction Read: Point Query, Scan If your writes are far more than your r...
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Author: Nicolas Spiegelberg,
2012-01-14, 02:06
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Re: Major Compaction Concerns - HBase - [mail # dev]
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...Mikael, I'm not sure about the production status of your system, but you sound like you have critical need for dozens of optimization features coming out in 0.92 and even some trunk p...
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Author: Nicolas Spiegelberg,
2012-01-12, 21:44
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Re: Changing our logo purple to International Orange (Engineering) - HBase - [mail # dev]
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...+1 It's much more visible and bold. I like the Golden Gate reference... On 1/11/12 8:42 AM, "Stack" wrote: ...
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Author: Nicolas Spiegelberg,
2012-01-11, 22:34
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Re: Question about HBase for OLTP - HBase - [mail # user]
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...1) Eventual Consistency isn't a problem here. HBase is a strict consistency system. Maybe you have us confused with other Dynamo-based Open Source projects? 2) MySQL and other tr...
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Author: Nicolas Spiegelberg,
2012-01-09, 23:18
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Re: Major Compaction Concerns - HBase - [mail # dev]
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...Significant compaction JIRAs: - HBASE-2462 : original formulation of current compaction algorithm - HBASE-3209 : implementation - HBASE-1476 : multithreaded compactions &nb...
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Author: Nicolas Spiegelberg,
2012-01-09, 19:42
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Re: Major Compaction Concerns - HBase - [mail # dev]
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...Mikael, Hi, I wrote the current compaction algorithm, so I should be able to answer most questions that you have about the feature. It sounds like you're creating quite a task li...
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Author: Nicolas Spiegelberg,
2012-01-09, 18:55
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Re: Code review request for hbase-4120 table priority - HBase - [mail # dev]
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...I think we should be really careful here because a laissez-fare attitude will keep the project from reaching a new level of maturity. There are a number of committers from various comp...
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Author: Nicolas Spiegelberg,
2011-12-13, 03:12
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Re: major compaction and regionserver failure... - HBase - [mail # user]
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...Andy, Some detail on the current compaction algorithm. Major compactions can be triggered in 3 ways: 1) User requested : e.g. From the shell 2) Size based : compact when fi...
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Author: Nicolas Spiegelberg,
2011-12-11, 20:46
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Re: Rename "book" to "manual", redux - HBase - [mail # dev]
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...+1 On 12/5/11 4:28 PM, "Doug Meil" wrote: ...
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Author: Nicolas Spiegelberg,
2011-12-06, 02:29
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