That certainly is odd. Does it work if you list both old and new properties (perhaps the CLI tools are looking at an older property.. but that seems unlikely)? Sorry I don't have more answers, I haven't yet deploying Hadoop 2.x.. On Wed, Mar 19, 2014 at 9:30 AM, Gurvinder Singh <gurvindersinghdahiya@xxxxxxxxx> wrote: > On 03/19/2014 05:18 PM, Noah Watkins wrote: >> Err, obviously switching things out for Ceph rather than Gluster. >> >> On Wed, Mar 19, 2014 at 9:18 AM, Noah Watkins <noah.watkins@xxxxxxxxxxx> wrote: >>> Looks like this is a configuration issue that has popped up with other >>> 3rd party file systems in Hadoop 2.x with YARN. >>> >>> http://mail-archives.apache.org/mod_mbox/hadoop-yarn-dev/201306.mbox/%3C1023550423.3137743.1371825668412.JavaMail.root@xxxxxxxxxx%3E >>> >>> Says use this: >>> >>> <property> >>> <name>fs.AbstractFileSystem.glusterfs.impl</name> >>> <value>org.apache.hadoop.fs.glusterfs.GlusterFS</value> >>> </property> > Interestingly this solves the mapred history server issue. It created > the history folder and started. > > <property> > <name>fs.AbstractFileSystem.ceph.impl</name> > <value>org.apache.hadoop.fs.ceph.CephHadoop2FileSystem</value> > <description> > </description> > </property> > > But now this fails as > > hadoop fs -ls / > ls: No FileSystem for scheme: ceph > > - Gurvinder >>> >>> Apparently rather than the `fs.ceph.impl` property in 2.x >>> >>> >>> On Wed, Mar 19, 2014 at 9:06 AM, Gurvinder Singh >>> <gurvindersinghdahiya@xxxxxxxxx> wrote: >>>> On 03/19/2014 04:50 PM, Noah Watkins wrote: >>>>> Since `hadoop -fs ls /` seems to work on your local node, can you >>>>> verify that (1) it is in fact listing the contents of CephFS, and (2) >>>>> that on your worker nodes where the error is occuring that the >>>>> relevant dependencies (naming the Ceph hadoop bindings) are installed >>>>> and in the classpath? >>>> 1) yes it is listing the cephfs contents. >>>> 2) Currently the setup is to start the yarn manager and mapreduce >>>> history server on the same node and then setup the worker nodes. Yarn >>>> starts up fine, but the mapreduce history server gives me the error. The >>>> dependency lib are loaded in the mapreduce history server startup. Here >>>> is the link to start up message which shows that the libcephfs and >>>> cephfs-hadoop jar are loaded. >>>> >>>> http://pastebin.com/wED7nMMT >>>> >>>> I am wondering if this property value is correct >>>> >>>> <property> >>>> <name>fs.ceph.impl</name> >>>> <value>org.apache.hadoop.fs.ceph.CephFileSystem</value> >>>> </property> >>>> >>>> or should I set it to something for hadoop 2.x I have tried setting it up as >>>> >>>> org.apache.hadoop.fs.ceph.CephHadoop2FileSystem, then I get this error as >>>> >>>> # hadoop fs -ls / >>>> -ls: Fatal internal error >>>> java.lang.RuntimeException: java.lang.NoSuchMethodException: >>>> org.apache.hadoop.fs.ceph.CephHadoop2FileSystem.<init>() >>>> at >>>> org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:131) >>>> at >>>> org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2315) >>>> at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:90) >>>> at >>>> org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2350) >>>> at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2332) >>>> at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:369) >>>> at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:168) >>>> at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:353) >>>> at org.apache.hadoop.fs.Path.getFileSystem(Path.java:296) >>>> at >>>> org.apache.hadoop.fs.shell.PathData.expandAsGlob(PathData.java:325) >>>> at >>>> org.apache.hadoop.fs.shell.Command.expandArgument(Command.java:224) >>>> at >>>> org.apache.hadoop.fs.shell.Command.expandArguments(Command.java:207) >>>> at >>>> org.apache.hadoop.fs.shell.Command.processRawArguments(Command.java:190) >>>> at org.apache.hadoop.fs.shell.Command.run(Command.java:154) >>>> at org.apache.hadoop.fs.FsShell.run(FsShell.java:255) >>>> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70) >>>> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84) >>>> at org.apache.hadoop.fs.FsShell.main(FsShell.java:308) >>>> Caused by: java.lang.NoSuchMethodException: >>>> org.apache.hadoop.fs.ceph.CephHadoop2FileSystem.<init>() >>>> at java.lang.Class.getConstructor0(Class.java:2800) >>>> at java.lang.Class.getDeclaredConstructor(Class.java:2043) >>>> at >>>> org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:125) >>>> ... 17 more >>>> >>>> Regards, >>>> Gurvinder >>>> >>>>> >>>>> The error itself looks like a missing dependency, but that exception >>>>> being thrown might also be tirggered by other problems while loading >>>>> the bindings. >>>>> >>>>> On Wed, Mar 19, 2014 at 8:43 AM, Gurvinder Singh >>>>> <gurvindersinghdahiya@xxxxxxxxx> wrote: >>>>>> On 03/19/2014 03:51 PM, Noah Watkins wrote: >>>>>>> On Wed, Mar 19, 2014 at 4:28 AM, Gurvinder Singh >>>>>>> <gurvindersinghdahiya@xxxxxxxxx> wrote: >>>>>>>> Hi, >>>>>>>> >>>>>>>> I have ceph 0.72.2 running on debian wheezy with cloudera 5.0 beta 2 >>>>>>>> hadoop. I have installed the ceph hadoop binding with hadoop 2.x >>>>>>>> support. I am able to run the command such as >>>>>>> >>>>>>> From github.com/noahdesu/cephfs-hadoop patched with the pull request PR#1? >>>>>>> >>>>>> Yes. >>>>>>> Can you paste your core-site.xml? >>>>>> >>>>>> Below is the relevant part for ceph conf >>>>>> >>>>>> <property> >>>>>> <name>fs.defaultFS</name> >>>>>> <value>ceph://xxxxxxxxxxxx:6789/</value> >>>>>> </property> >>>>>> >>>>>> <property> >>>>>> <name>ceph.conf.file</name> >>>>>> <value>/etc/ceph/ceph.conf</value> >>>>>> </property> >>>>>> >>>>>> <property> >>>>>> <name>ceph.auth.id</name> >>>>>> <value>admin</value> >>>>>> </property> >>>>>> >>>>>> <property> >>>>>> <name>ceph.auth.keyfile</name> >>>>>> <value>/etc/hadoop/conf/admin.secret</value> >>>>>> </property> >>>>>> >>>>>> <property> >>>>>> <name>fs.ceph.impl</name> >>>>>> <value>org.apache.hadoop.fs.ceph.CephFileSystem</value> >>>>>> </property> >>>>>> >>>>>> >>>>>>> >>>>>> >>>> > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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