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Re: Get on a row with multiple columns - HBase - [mail # user]
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...The use case is like your twitter feed. Tweets from people u follow. When someone unfollows, you need to delete a bunch of his tweets from the following feed. So, its frequent, and we are es...
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Author: Varun Sharma,
2013-02-09, 06:45
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Re: Get on a row with multiple columns - HBase - [mail # user]
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...Using hbase 0.94.3. Tried that too, ran into performance issues with having to retrieve the entire row first (this was getting slow when one particular row is hammered) since row can be big ...
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Author: Varun Sharma,
2013-02-09, 06:16
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Re: Get on a row with multiple columns - HBase - [mail # user]
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...We are given a set of 300 columns to delete. I tested two cases: 1) deleteColumns() - with the 's' This function simply adds delete markers for 300 columns, in our case, typicall...
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Author: Varun Sharma,
2013-02-09, 06:05
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Re: Get on a row with multiple columns - HBase - [mail # user]
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...So a Get call with multiple columns on a single row should be much faster than independent Get(s) on each of those columns for that row. I am basically seeing severely poor performance (~ 15...
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Author: Varun Sharma,
2013-02-09, 05:44
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Re: Get on a row with multiple columns - HBase - [mail # user]
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...Sorry, I was a little unclear with my question. Lets say you have Get get = new Get(row) get.addColumn("1"); get.addColumn("2"); . . . When internally hbase executes the ba...
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Author: Varun Sharma,
2013-02-09, 05:22
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Re: Get on a row with multiple columns - HBase - [mail # dev]
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...+user On Fri, Feb 8, 2013 at 5:38 PM, Varun Sharma wrote: ...
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Author: Varun Sharma,
2013-02-09, 01:40
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Get on a row with multiple columns - HBase - [mail # dev]
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...Hi, When I do a Get on a row with multiple column qualifiers. Do we sort the column qualifers and make use of the sorted order when we get the results ? Thanks Varun...
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Author: Varun Sharma,
2013-02-09, 01:38
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Re: LRU stats - HBase - [mail # user]
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...Since i am using only 10 % of allocated cache, I think EvictionThread never ran - hence, I see the value 0. What's mysterious is who is calling evictBlock then, because there are non zero ev...
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Author: Varun Sharma,
2013-01-27, 09:04
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LRU stats - HBase - [mail # user]
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...Hi, I am running hbase 0.94.3 and I am trying to understand the LRU cache stats here: LRU Stats: total=428.75 MB, free=4.05 GB, max=4.46 GB, blocks=35961, accesses=23808283, hits...
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Author: Varun Sharma,
2013-01-27, 03:05
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Re: 答复: GC pause issues - HBase - [mail # user]
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...My total heap size is 12G and my young gen is 1G. I am getting 200ms pauses every few seconds - the machine has 4 cores (its m1.xlarge on ec2), if I set the young gen low. The one thing I no...
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Author: Varun Sharma,
2013-01-25, 17:55
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