Re: NameNode Zookeeper Integration

2011-01-12 Thread Hong Tang
I think mac fang means to use ZooKeeper to implement multi-master pattern for NN and JT. On Wed, Jan 12, 2011 at 8:23 AM, Koji Noguchi wrote: > Hi. > > If you subscribe to zookeeper mailinglist, you would see a hdfs developer > working on bookeeper recently. > https://issues.apache.org/jira/brows

Re: NameNode Zookeeper Integration

2011-01-12 Thread Koji Noguchi
Hi. If you subscribe to zookeeper mailinglist, you would see a hdfs developer working on bookeeper recently. https://issues.apache.org/jira/browse/ZOOKEEPER-465 https://issues.apache.org/jira/browse/ZOOKEEPER-959 Probably related. https://issues.apache.org/jira/browse/HDFS-234 Koji On 1/11/11

NameNode Zookeeper Integration

2011-01-11 Thread mac fang
Hi, all, I am NOT sure if there any plan or issues of integrating Zookeeper and NameNode to resolve the Single Point issue of NameNode. With it, the DataNodes dont need to be restarted. I think this can improve the availability of the whole cluster. I heard there is a plan for JobTracker and Task