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RE: Storing images in Hbase - HBase - [mail # user]
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...That's right, Memstore size , not flush size is increased. Filesize is 10G. Overall write cache is 60% of heap and read cache is 20%. Flush size is 15%. 64 maxlogs at 128MB...
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Author: Jack Levin,
2013-01-13, 16:17
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Re: Storing images in Hbase - HBase - [mail # user]
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...http://img338.imageshack.us/img338/6831/screenshot20130111at949.png this shows how often we flush, and how large are the region files. We do have bloomfilters turn up, that we do...
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Author: Jack Levin,
2013-01-11, 17:51
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Re: Storing images in Hbase - HBase - [mail # user]
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...We buffer all accesses to HBASE with Varnish SSD based caching layer. So the impact for reads is negligible. We have 70 node cluster, 8 GB of RAM per node, relatively weak nodes (intel...
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Author: Jack Levin,
2013-01-11, 17:47
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Re: Region number and allocation advice - HBase - [mail # user]
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...Please note that if you have fast growing datastore, you may end up with very large region files - if you limit the number of regions. If that happens (and you can tell by simply exami...
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Author: Jack Levin,
2012-07-06, 21:27
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Re: Storing extremely large size file - HBase - [mail # user]
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...Whats wrong with that size? We store > 15MB routinely into our image hbase. -Jack On Tue, Apr 17, 2012 at 10:46 AM, Jean-Daniel Cryans wrote:...
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Author: Jack Levin,
2012-04-17, 17:47
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Re: Speeding up HBase read response - HBase - [mail # user]
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...Yes, from %util you can see that your disks are working at 100% pretty much. Which means you can't push them go any faster. So the solution is to add more disks, add faste...
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Author: Jack Levin,
2012-04-09, 14:28
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Re: Speeding up HBase read response - HBase - [mail # user]
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...Please email iostat -xdm 1, run for one minute during load on each node Sent from my Android phone with K-9 Mail. Please excuse my brevity. ijanitran wrote: I have 4 nodes...
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Author: Jack Levin,
2012-04-06, 17:14
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Re: ideas for hbasecon 2012 - HBase - [mail # user]
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...I would do a panel session on the subject if there is interest. -Jack On Thu, Feb 23, 2012 at 11:50 AM, Andrew Purtell wrot e: ictly my personal opinion. a nuanced discussi...
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Author: Jack Levin,
2012-02-24, 00:56
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Re: Hbase Images - HBase - [mail # user]
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...images (jpgs) are bytes, there is no difference, you just need to add appropriate http headers using nginx or any other proxy of choice and put it on top of REST HBASE api. -Jack ...
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Author: Jack Levin,
2012-01-17, 21:12
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Re: Meta region hotspotting - HBase - [mail # user]
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...Some time ago, we had a situation where our REST server was slammed with queries that did not find any matches for rows in Hbase. When that happened we sustained 50k rpc/sec to META re...
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Author: Jack Levin,
2011-12-27, 01:32
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