Hi Arun,
I downloaded bin-tar and deployed, then I ran a complicated MR jobs, it's
succeed.
But when I add the following entries [HDFS-347]:
<property>
<name>dfs.client.read.shortcircuit</name>
<value>true</value>
</property>
<property>
<name>dfs.domain.socket.path</name>
<value>/home/hadoop/dn_socket</value>
</property>
I cannot start HDFS, log as following:
2013-06-26 17:11:42,413 FATAL
org.apache.hadoop.hdfs.server.datanode.DataNode: Exception in secureMain
java.lang.RuntimeException: Although a UNIX domain socket path is
configured as /home/hadoop/dn_socket, we cannot start a
localDataXceiverServer because libhadoop cannot be loaded.
at
org.apache.hadoop.hdfs.server.datanode.DataNode.getDomainPeerServer(DataNode.java:597)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.initDataXceiver(DataNode.java:569)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:740)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:343)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1799)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1714)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1737)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:1909)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1930)
2013-06-26 17:11:42,425 INFO org.apache.hadoop.util.ExitUtil: Exiting with
status 1
On Wed, Jun 26, 2013 at 4:17 PM, Arun C Murthy <[email protected]> wrote:
> Folks,
>
> I've created a release candidate (rc0) for hadoop-2.1.0-beta that I would
> like to get released.
>
> This release represents a *huge* amount of work done by the community (639
> fixes) which includes several major advances including:
> # HDFS Snapshots
> # Windows support
> # YARN API stabilization
> # MapReduce Binary Compatibility with hadoop-1.x
> # Substantial amount of integration testing with rest of projects in the
> ecosystem
>
> The RC is available at:
> http://people.apache.org/~acmurthy/hadoop-2.1.0-beta-rc0/
> The RC tag in svn is here:
> http://svn.apache.org/repos/asf/hadoop/common/tags/release-2.1.0-beta-rc0
>
> The maven artifacts are available via repository.apache.org.
>
> Please try the release and vote; the vote will run for the usual 7 days.
>
> thanks,
> Arun
>
> --
> Arun C. Murthy
> Hortonworks Inc.
> http://hortonworks.com/
>
>
>
