[jira] Reopened: (HADOOP-6281) HtmlQuoting throws NullPointerException

2009-09-25 Thread gary murry (JIRA)
[ https://issues.apache.org/jira/browse/HADOOP-6281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] gary murry reopened HADOOP-6281: HtmlQuoting throws NullPointerException ---

Re: different modes of inter process communication

2009-09-25 Thread Raghu Angadi
Steve Loughran wrote: Raghu Angadi wrote: A heartBeat is also an RPC. When you pause Namenode for 30 sec the datanode's heartbeat thread just waits for 30 sec for its heartbeat RPC to return. Note that when you pause Namenode, the RPCs to it don't fail immediately. During this wait, DNs can

Re: Towards Hadoop 1.0: Stronger API Compatibility from 0.21 onwards

2009-09-25 Thread Allen Wittenauer
On 9/25/09 10:13 AM, Dhruba Borthakur dhr...@gmail.com wrote: It is really nice to have wire-compatibility between clients and servers running different versions of hadoop. The reason we would like this is because we can allow the same client (Hive, etc) submit jobs to two different clusters

Re: Towards Hadoop 1.0: Stronger API Compatibility from 0.21 onwards

2009-09-25 Thread Sanjay Radia
On Sep 25, 2009, at 12:03 PM, Allen Wittenauer wrote: On 9/25/09 10:13 AM, Dhruba Borthakur dhr...@gmail.com wrote: It is really nice to have wire-compatibility between clients and servers running different versions of hadoop. The reason we would like this is because we can allow the

Re: Towards Hadoop 1.0: Stronger API Compatibility from 0.21 onwards

2009-09-25 Thread Allen Wittenauer
On 9/25/09 12:44 PM, Sanjay Radia sra...@yahoo-inc.com wrote: On Sep 25, 2009, at 12:03 PM, Allen Wittenauer wrote: On 9/25/09 10:13 AM, Dhruba Borthakur dhr...@gmail.com wrote: It is really nice to have wire-compatibility between clients and servers running different versions of