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increasing block cache size - HBase - [mail # user]
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...Hello All- We are running 5 node v0.94 cluster on machines w/ 32G of RAM. I'd like to utilize more of our memory for block cache. So I have a couple of questions. &...
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Author: Ted Tuttle,
2012-11-16, 18:31
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[HBASE-6254] deletes w/ many column qualifiers overwhelm Region Server - HBase - [issue]
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...Execution of Deletes constructed with thousands of calls to Delete.deleteColumn(family, qualifier) are very expensive and slow.On our (quiet) cluster, a Delete w/ 20k qualifiers took about 1...
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http://issues.apache.org/jira/browse/HBASE-6254
Author: Ted Tuttle,
2012-06-21, 18:47
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RE: RS unresponsive after series of deletes - HBase - [mail # user]
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...https://issues.apache.org/jira/browse/HBASE-6254 ...
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Author: Ted Tuttle,
2012-06-21, 18:16
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RE: RS unresponsive after series of deletes - HBase - [mail # user]
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...Working on the JIRA ticket now, btw. qual, ts) ? following the delete call may be masked by the above. We scan for KeyValues matching rows and columns matching cl...
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Author: Ted Tuttle,
2012-06-21, 18:00
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RE: RS unresponsive after series of deletes - HBase - [mail # user]
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...Good hint, Ted By calling Delete.deleteColumn(family, qual, ts) instead of deleteColumn w/o timestamp, the time to delete row keys is reduced by 95%. I am going to experiment w/ ...
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Author: Ted Tuttle,
2012-06-21, 14:02
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Re: RS unresponsive after series of deletes - HBase - [mail # user]
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... Our schema contains only one column family per table. So, each Delete contai ns cells from a single column family. I hope this answers your question. ...
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Author: Ted Tuttle,
2012-06-21, 04:54
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RE: RS unresponsive after series of deletes - HBase - [mail # user]
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...First off, J-D, thanks for helping me work through this. You've inspired some different angles and I think I've finally made it bleed in a controlled way. I manually compacted (...
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Author: Ted Tuttle,
2012-06-21, 00:07
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RE: RS unresponsive after series of deletes - HBase - [mail # user]
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...I've been having difficulty reproducing this behavior in controlled manner. While I haven't been able to get my client to hang up while doing deletes, I have found a query that when issued a...
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Author: Ted Tuttle,
2012-06-20, 20:49
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RE: RS unresponsive after series of deletes - HBase - [mail # user]
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...We had another of these delete-related RS hang ups. This time we are getting a different error on the client: java.io.IOException: Call queue is full, is ipc.server.max.callqueue...
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Author: Ted Tuttle,
2012-06-18, 22:08
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RE: RS unresponsive after series of deletes - HBase - [mail # user]
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...A mixture of row and cell deletes. Interestingly, the first 19 (successful) deletes were row deletes. The client got hung up while submitting its first batch of cell deletes. &nb...
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Author: Ted Tuttle,
2012-06-14, 19:36
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