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Re: Performance measurement for ZooKeeper 3.5.0 - Zookeeper - [mail # dev]
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...I am surprised by that drop too. I believe synchronize read/write behavior on the clients amplified the bottleneck on the server side. I did an experiment where write are going through...
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Author: Thawan Kooburat,
2013-01-13, 00:11
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Review Request: ZOOKEEPER-1147: Add support for local sessions - Zookeeper - [mail # dev]
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...This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/8935/ Review request for zookeeper, Patrick Hunt and Mahadev Konar. Description Th...
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Author: Thawan Kooburat,
2013-01-12, 04:27
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Re: Performance measurement for ZooKeeper 3.5.0 - Zookeeper - [mail # dev]
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...In short, I believe is it because write request is blocking the entire pipeline, so read request cannot go through. We are planing to work on ZOOKEEPER-1609 to fix this problem Thawan ...
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Author: Thawan Kooburat,
2013-01-11, 20:43
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Re: force snapshot - Zookeeper - [mail # user]
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...If you have multiple machines in the ensemble you can restart one of the machine. When the follower restarts and join the quorum it will create a new snapshot that you can use to troubleshoo...
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Author: Thawan Kooburat,
2013-01-11, 08:48
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Performance measurement for ZooKeeper 3.5.0 - Zookeeper - [mail # dev]
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...Hi folks, As promised, below is the performance measurement of 3.5.0 branch with and without NIO(ZOOKEEPER-1504) and CommitProcessor(ZOOKEEPER-1505) The experiment is simi...
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Author: Thawan Kooburat,
2013-01-11, 00:30
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[ZOOKEEPER-1607] Read-only Observer - Zookeeper - [issue]
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...This feature reused some of the mechanism already provided by ReadOnlyZooKeeper (ZOOKEEPER-704) but implemented in a different wayGoal: read-only clients should be able to connect to the obs...
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http://issues.apache.org/jira/browse/ZOOKEEPER-1607
Author: Thawan Kooburat,
2012-12-22, 04:40
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[ZOOKEEPER-1573] Unable to load database due to missing parent node - Zookeeper - [issue]
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...While replaying txnlog on data tree, the server has a code to detect missing parent node. This code block was last modified as part of ZOOKEEPER-1333. In our production, we found a case wher...
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http://issues.apache.org/jira/browse/ZOOKEEPER-1573
Author: Thawan Kooburat,
2012-11-01, 23:13
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Re: ZooKeeper Scale - Zookeeper - [mail # user]
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...You can add more observers to scale the number of watches that the ensemble can handle. Znode count will depend on how much RAM you have and how much data are in each znode. Our last b...
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Author: Thawan Kooburat,
2012-10-16, 22:55
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[ZOOKEEPER-1462] Read-only server does not initialize database properly - Zookeeper - [issue]
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...Brief Description:When a participant or observer get partitioned and restart as Read-only server. ZkDb doesn't get reinitialized. This causes the RO server to drop any incoming request with ...
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http://issues.apache.org/jira/browse/ZOOKEEPER-1462
Author: Thawan Kooburat,
2012-09-28, 17:26
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[ZOOKEEPER-1445] Add support for binary data for zktreeutil - Zookeeper - [issue]
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...zktreeutil does not support binary data. The program will fail to import/export znode's data which are in binary format. We are going to use OpenSSL library to perform Base64 encoding so tha...
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http://issues.apache.org/jira/browse/ZOOKEEPER-1445
Author: Thawan Kooburat,
2012-08-30, 06:00
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