[jira] Created: (HADOOP-6280) Uniform way of setting default param for ToolRunner (like passing -Ddfs.umask)

Uniform way of setting default param for ToolRunner (like passing -Ddfs.umask) -- Key: HADOOP-6280 URL: https://issues.apache.org/jira/browse/HADOOP-6280 Project: Hadoop Commo

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

HtmlQuoting throws NullPointerException --- Key: HADOOP-6281 URL: https://issues.apache.org/jira/browse/HADOOP-6281 Project: Hadoop Common Issue Type: Bug Reporter: Tsz Wo (Nicholas), SZE {no

[jira] Created: (HADOOP-6282) test-patch should verify that FindBugs version used for verification is correct one

test-patch should verify that FindBugs version used for verification is correct one --- Key: HADOOP-6282 URL: https://issues.apache.org/jira/browse/HADOOP-6282 Project: H

[jira] Created: (HADOOP-6283) FileUtil$HardLink.getLinkCount(..) throws NumberFormatException

FileUtil$HardLink.getLinkCount(..) throws NumberFormatException --- Key: HADOOP-6283 URL: https://issues.apache.org/jira/browse/HADOOP-6283 Project: Hadoop Common Issue Type: Bug

[jira] Created: (HADOOP-6284) Any hadoop commands crashing jvm (SIGBUS) when /tmp (tmpfs) is full

Any hadoop commands crashing jvm (SIGBUS) when /tmp (tmpfs) is full Key: HADOOP-6284 URL: https://issues.apache.org/jira/browse/HADOOP-6284 Project: Hadoop Common Issue Ty

Re: different modes of inter process communication

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 perform other transactions like serving dat