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Re: Questions about HBase replication - HBase - [mail # user]
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...Hi Lars, Thanks for the response. Regarding #2 again, so if RS1 failed, then the following happens... 1) RS2 takes over its logs... 2) Master renames the log containing directory...
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Author: Varun Sharma,
2013-05-20, 07:35
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Questions about HBase replication - HBase - [mail # user]
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...Hi, I have a couple of questions about HBase replication... 1) When we ship edits to slave cluster - do we retain the timestamps in the edits - if we don't, I can imagine hitting...
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Author: Varun Sharma,
2013-05-19, 19:13
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Re: Question about HFile seeking - HBase - [mail # user]
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...Thanks Stack and Lars for the detailed answers - This question is not really motivated by performance problems... So the index indeed knows what part of the HFile key is the row and wh...
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Author: Varun Sharma,
2013-05-17, 07:22
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Re: Question about HFile seeking - HBase - [mail # user]
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...Referring to your comment above again "If you doing a prefix scan w/ row1c, we should be starting the scan at row1c, not row1 (or more correctly at the row that starts the block we bel...
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Author: Varun Sharma,
2013-05-16, 22:26
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Re: Question about HFile seeking - HBase - [mail # user]
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...Sorry I may have misunderstood what you meant. When you look for "row1c" in the HFile index - is it going to also match for "row1,col1" or only match "row1c". It all depends how the in...
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Author: Varun Sharma,
2013-05-16, 21:55
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Re: Question about HFile seeking - HBase - [mail # user]
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...Nothing, I am just curious... So, we will do a bunch of wasteful scanning - that's lets say row1 has col1 - col100000 - basically 100K columns, we will scan all those key values even t...
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Author: Varun Sharma,
2013-05-16, 21:42
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Re: Question about HFile seeking - HBase - [mail # user]
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...Or do we use some kind of demarcator b/w rows and columns and timestamps when building the HFile keys and the indices ? Thanks Varun On Thu, May 16, 2013 at 1:56 PM, Varun Sharm...
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Author: Varun Sharma,
2013-05-16, 21:03
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Question about HFile seeking - HBase - [mail # user]
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...Lets say I have the following in my table: col1 row1 v1 ------> HFile entry would be...
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Author: Varun Sharma,
2013-05-16, 20:56
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Key Value collision - HBase - [mail # user]
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...Hi, I am wondering what happens when we add the following: row, col, timestamp --> v1 A flush happens. Now, we add row, col, timestamp --> v2 A flush happ...
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Author: Varun Sharma,
2013-05-16, 18:49
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[HBASE-8554] Scan should seek to startRow within a region - HBase - [issue]
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...Currently Scan.startRow() is only used for determining which Region to look up the row into but we do not seek within the region to the start row. Since its not uncommon to run with large si...
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http://issues.apache.org/jira/browse/HBASE-8554
Author: Varun Sharma,
2013-05-16, 05:28
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