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Re: Reconfig without quorum - Zookeeper - [mail # user]
...Hi Martin,Yes, reconfig like other ZooKeeper operations works only when there's aquorum. Although you're sayingthat zone 1 failed, it may be the case that the link between zone 1 andzone 2 f...
   Author: Alexander Shraer, 2014-09-18, 04:57
[ZOOKEEPER-2017] New tests for reconfig failure cases - Zookeeper - [issue]
...1) New test file with some reconfig failure cases. 2) Moved testLeaderTimesoutOnNewQuorum from ReconfigTest to the new file3) Added a check to standaloneDisabledTest.java...
http://issues.apache.org/jira/browse/ZOOKEEPER-2017    Author: Alexander Shraer, 2014-08-30, 18:56
[expand - 1 more] - Re: zookeeper server close connection unexpected - Zookeeper - [mail # user]
...Looks like your new server is started from scratch. The client can'tconnect to it since it has seen data that is more up-to-date. This is notsomething we introduced in 3.5.0. When a client l...
   Author: Alexander Shraer, 2014-08-24, 03:43
Re: is 3.5.0-rc1 client compatible with 3.4.6 server? - Zookeeper - [mail # user]
...w.r.t. updateServerList itself, I think it should work. However you'll haveto get newServerList from somewhere - I don't think you can get it from theAPI in 3.4.6. The client has the new get...
   Author: Alexander Shraer, 2014-08-21, 23:24
Re: Data loss scenario - Zookeeper - [mail # user]
...I think its:src/java/main/org/apache/zookeeper/server/quorum/Leader.java,waitForEpochAck throws exception if the follower is ahead of the leader interms of data, like in your examplesrc/java...
   Author: Alexander Shraer, 2014-08-20, 21:57
Re: Write throughput is low !! - Zookeeper - [mail # user]
...Hi,I'd expect the throughput with 5 servers to be around 10K ops/sec for 100%writes.The graph Jordan sent shows smaller numbers than in the ZK paper (Figure 6:https://www.usenix.org/legacy/e...
   Author: Alexander Shraer, 2014-08-14, 17:27
[expand - 10 more] - Re: ZooKeeper 3.5.0-alpha planning - Zookeeper - [mail # dev]
...Looking at the log Patrick sent:https://builds.apache.org/job/ZooKeeper-trunk/2386/testReport/junit/org.apache.zookeeper.server.quorum/ReconfigRecoveryTest/testCurrentObserverIsParticipantIn...
   Author: Alexander Shraer, 2014-07-26, 00:01
[ZOOKEEPER-1967] Eliminate the temp dynamic config file, find last proposed config in transaction log. - Zookeeper - [issue]
...The .next temporary config file is created when a server acks a reconfig proposal.During reconfig commit this file becomes the permanent dynamic config file.This temp file is read (if exists...
http://issues.apache.org/jira/browse/ZOOKEEPER-1967    Author: Alexander Shraer, 2014-07-18, 18:56
[ZOOKEEPER-1947] Implement a better way to specify joiners - Zookeeper - [issue]
...Currently a server must appear in its own config when it starts up. One of the reasons is that the server spec has LE ports through which it can connect to the leader. This means that when c...
http://issues.apache.org/jira/browse/ZOOKEEPER-1947    Author: Alexander Shraer, 2014-06-26, 19:48
[expand - 3 more] - Re: Dynamic reconfiguration: New participant server opens wrong ports - Zookeeper - [mail # user]
...no problem. yes - the leader only counts acks from followers in the config.AlexOn Wed, Jun 25, 2014 at 12:37 PM, Niko Vuokko  wrote: ...
   Author: Alexander Shraer, 2014-06-25, 19:47
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB