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[HBASE-13132] Improve RemoveColumn action debug message - HBase - [issue]
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...Trivial fix for this unsightly log message:2015-02-22 14:04:46,357 DEBUG [TwoConcurrentAction-1-thread-2] actions.Action: Performing action: Removing [B@64275127 from TestAcidGuarantees...
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Re: Timerange scan - HBase - [mail # user]
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...I was going to say something similar. But as soon as you have a majorcompaction you endup with a single file and everything into it. Sodepending on your key distribution you might still read...
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Re: Timerange scan - HBase - [mail # user]
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...A Scan without start and end rows will be issued to all regions in thetable -- a full table scan. Within each region, store files will beselected to participate in the scan based on on the m...
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Author: Nick Dimiduk,
2015-02-28, 23:27
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Re: Timerange scan - HBase - [mail # user]
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...If Scan.setTimeRange is a full table scan then it runs surprisingly fast ontables that host a few hundred million rows :-)On Sat, Feb 28, 2015 at 8:05 PM, Kristoffer Sjögren wrote: ...
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Author: Kristoffer Sjögren,
2015-02-28, 21:50
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Re: Timerange scan - HBase - [mail # user]
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...Hi Jean-MarcI was thinking of Scan.setTimeRange to only get the x latest rows, but Iwould like to avoid a full table scan.The alternative would be to use set the timestamp in the key and use...
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Author: Kristoffer Sjögren,
2015-02-28, 19:07
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Re: Timerange scan - HBase - [mail # user]
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...Hi Kristoffer,What do you mean by "timerange scans"? If you want to scan everything fromyour table, you will always end up with a full table scan, no?JM2015-02-28 13:41 GMT-05:00 Kristoffer ...
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Author: Jean-Marc Spaggiari,
2015-02-28, 18:47
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Timerange scan - HBase - [mail # user]
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...HiI want to understand the effectiveness of timerange scans without settingstart and stop keys? Will HBase do a full table scan or will the scan beoptimized in any way?Cheers,-Kristoffer&nbs...
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Author: Kristoffer Sjögren,
2015-02-28, 18:42
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[HBASE-12795] Backport HBASE-12429 (Add port to ClusterManager's actions) to 0.98 - HBase - [issue]
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...As of HBASE-12371 we are following along with improvements in the integration test module. Evaluate HBASE-12429 (Add port to ClusterManager's actions) for backport to 0.98. This improves tes...
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[HBASE-13053] Add support of Visibility Labels in PerformanceEvaluation - HBase - [issue]
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...Add support of Visibility Labels in PerformanceEvaluation:During write operations, support adding a visibility expression to KVs.During read/scan operations, support using visibility authori...
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[HBASE-13087] branch-1 isn't rolling upgradable from 0.98 - HBase - [issue]
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...org.apache.hadoop.hbase.client.RetriesExhaustedWithDetailsException: Failed 1 action: org.apache.hadoop.hbase.regionserver.NoSuchColumnFamilyException: Column family table does not exist in ...
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[HBASE-13131] ReplicationAdmin leaks connections if there's an error in the constructor - HBase - [issue]
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...We do some work in the ReplicationAdmin constructor after creating connections to ZK and the HBase cluster. If any part of that work throws an exception that we propagate out of the construc...
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[HBASE-13071] Hbase Streaming Scan Feature - HBase - [issue]
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...A scan operation iterates over all rows of a table or a subrange of the table. The synchronous nature in which the data is served at the client side hinders the speed the application travers...
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BucketCache Configuration Problem - HBase - [mail # user]
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...Hi, expertsI am using HBase0.98.10 and have 3 problems about BucketCache configuration.First:I read the reference guide of Apache HBase to learn how to config BucketCache. I find...
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[HBASE-13109] Make better SEEK vs SKIP decisions during scanning - HBase - [issue]
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...I'm re-purposing this issue to add a heuristic as to when to SEEK and when to SKIP Cells. This has come up in various issues, and I think I have a way to finally fix this now. HBASE-9778, HB...
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[HBASE-12748] RegionCoprocessorHost.execOperation creates too many iterator objects - HBase - [issue]
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...This is typical pattern of enhanced for ... loop usage in a hot code path. For every HBase operation it instantiates iterator for coprocessor list twice....
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