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[HDFS-1137] Name node is using the write-ahead log improperly - HDFS - [issue]
...The Name node is doing the write-ahead log (WAL) (aka edit log) improperly. Usually when using WAL, changes are written to the log before they are applied to the state. Currently the Namenod...
http://issues.apache.org/jira/browse/HDFS-1137    Author: Benjamin Reed, 2014-07-30, 20:29
[ZOOKEEPER-328] We need to test the code that uses DNS lookups that return multiple results to enumerate the zookeeper servers - Zookeeper - [issue]
...Our client code uses the list of addresses returned from DNS as separate servers, so a zookeeper installation can have a single host name resolve to the addresses of all the zookeeper server...
http://issues.apache.org/jira/browse/ZOOKEEPER-328    Author: Benjamin Reed, 2014-07-29, 19:59
[ZOOKEEPER-102] Need to replace Jute with supported code - Zookeeper - [issue]
...ZooKeeper currently uses Jute to serialize objects to put on the wire and on disk. We pulled Jute out of Hadoop and added a C binding. Both versions of Jute have evolved (although Hadoop sti...
http://issues.apache.org/jira/browse/ZOOKEEPER-102    Author: Benjamin Reed, 2014-07-11, 08:28
[expand - 2 more] - Re: entire cluster dies with EOFException - Zookeeper - [mail # user]
...the log files seem very large to me. is the snap count really large? or doyou have a lot of data in each znode? you might try reducing the snap countto make the log files smaller.On Jul 6, 2...
   Author: Benjamin Reed, 2014-07-06, 21:34
Re: zookeeper watch limitation - Zookeeper - [mail # user]
...in the section you are referring to we are pointing out that sometimes youcan reduce the load on ZooKeeper if you avoid waking up the herd when youdon't have to. waking up 1000 processes so ...
   Author: Benjamin Reed, 2014-06-07, 15:06
[ZOOKEEPER-685] make C system tests use multiple servers - Zookeeper - [issue]
...the C system tests run against a single server. we really need to use a multiple server configuration....
http://issues.apache.org/jira/browse/ZOOKEEPER-685    Author: Benjamin Reed, 2014-04-23, 23:33
[ZOOKEEPER-366] Session timeout detection can go wrong if the leader system time changes - Zookeeper - [issue]
...the leader tracks session expirations by calculating when a session will timeout and then periodically checking to see what needs to be timed out based on the current time. this works great ...
http://issues.apache.org/jira/browse/ZOOKEEPER-366    Author: Benjamin Reed, 2014-04-23, 21:46
[ZOOKEEPER-414] zkServer.sh is duplicated in a couple of places - Zookeeper - [issue]
...we have zkServer.sh in 4 different places. some differ only in whitespace. it would be much more maintainable if there were only one version that everything used....
http://issues.apache.org/jira/browse/ZOOKEEPER-414    Author: Benjamin Reed, 2014-04-23, 21:28
[ZOOKEEPER-723] ephemeral parent znodes - Zookeeper - [issue]
...ephemeral znodes have the nice property of automatically cleaning up after themselves when the creator goes away, but since they can't have children it is hard to build subtrees that will cl...
http://issues.apache.org/jira/browse/ZOOKEEPER-723    Author: Benjamin Reed, 2014-04-22, 15:52
[ZOOKEEPER-442] need a way to remove watches that are no longer of interest - Zookeeper - [issue]
...currently the only way a watch cleared is to trigger it. we need a way to enumerate the outstanding watch objects, find watch events the objects are watching for, and remove interests in an ...
http://issues.apache.org/jira/browse/ZOOKEEPER-442    Author: Benjamin Reed, 2014-01-25, 11:09
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