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Re: leader election length - Zookeeper - [mail # user]
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...If your snapshot size wasn't big. You can increase the snapshot frequency (Java prop: zookeeper.snapCount) This may help a bit in reducing the size of txnlog, so it take less tim...
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Author: Thawan Kooburat,
2013-06-13, 21:28
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[ZOOKEEPER-1413] Use on-disk transaction log for learner sync up - Zookeeper - [issue]
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...Motivation:The learner syncs up with leader by retrieving committed log from the leader. Currently, the leader only keeps 500 entries of recently committed log in memory. If the learner fall...
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http://issues.apache.org/jira/browse/ZOOKEEPER-1413
Author: Thawan Kooburat,
2013-06-10, 22:10
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Re: Features that depends on txnlog lookup and its integrity - Zookeeper - [mail # dev]
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...On 6/3/13 9:54 AM, "Flavio Junqueira" wrote: I believe the problem you are describing here is essentially the fact that we have more failure than we can tolerate. Ideally, if S1...
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Author: Thawan Kooburat,
2013-06-04, 20:22
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Re: Features that depends on txnlog lookup and its integrity - Zookeeper - [mail # dev]
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...validating all the data before loading it in to memory. Disk-related errors on one of the machine won't affect the correctness of the ensemble since we are serving client or peer request fro...
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Author: Thawan Kooburat,
2013-06-02, 22:41
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Features that depends on txnlog lookup and its integrity - Zookeeper - [mail # dev]
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...Hi, I just want to start a discussion about the usage of txnlog. Here is the list of features that need to lookup information from txnlog. Theses feature need to ensure the integrity o...
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Author: Thawan Kooburat,
2013-06-01, 00:26
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Re: Review Request: ZOOKEEPER-1413: Use on-disk transaction log for learner sync up - Zookeeper - [mail # dev]
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... Ok, we can discuss about this in ZOOKEEPER-1710 - Thawan This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/11231/#review2094...
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Author: Thawan Kooburat,
2013-06-01, 00:08
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[ZOOKEEPER-1710] Leader should not use txnlog for synchronization if txnlog is corrupted or missing - Zookeeper - [issue]
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...It is possible that a human error caused some txnlog files to be remove from the log dir. The leader should not use txnlog to synchronize with the learner if it found that there is a missing...
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http://issues.apache.org/jira/browse/ZOOKEEPER-1710
Author: Thawan Kooburat,
2013-05-31, 23:52
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Re: Clarification regarding maxClientCnxns parameter - Zookeeper - [mail # user]
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...Client automatically, failover to other machines when it detect problem. maxClientCnxn is maintained by each server (a simple IP to connection count map) If you only have m...
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Author: Thawan Kooburat,
2013-05-31, 02:01
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Re: Review Request: ZOOKEEPER-1413: Use on-disk transaction log for learner sync up - Zookeeper - [mail # dev]
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... Yes, your understanding is correct This depends on how we decide to handle the error. With the current code, it will be easier but slower to verify the integrity of...
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Author: Thawan Kooburat,
2013-05-30, 18:41
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Re: Review Request: ZOOKEEPER-1413: Use on-disk transaction log for learner sync up - Zookeeper - [mail # dev]
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... The txnlog facility need to be able to guarantee there properties but i don't think we have that yet. I think we only do per-entry checksum and throws IOexception because ...
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Author: Thawan Kooburat,
2013-05-29, 19:11
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