Hi, What’s your Hadoop xml config file like?
Have you checked the permissions of the ceph.conf and keyring file? In case all good may be consider setting debug option in ceph.conf.options with Hadoop xml config file JC > On Jan 18, 2018, at 16:55, Bishoy Mikhael <b.s.mikh...@gmail.com> wrote: > > Hi All, > > I've a tiny Ceph 12.2.2 cluster setup with three nodes, 17 OSDs, 3 > MON,MDS,MGR (spanned across the three nodes). > Hadoop 2.7.3 is configured on only one of the three nodes as follows: > - Hadoop binaries was extracted to /opt/hadoop/bin/ > - Hadoop config files where at /opt/hadoop/etc/hadoop/ > - Hadoop-cephfs.jar was downloaded from http://download.ceph.com/tarballs/ > <http://download.ceph.com/tarballs/> to /opt/hadoop/lib/ which the last > update to it was on 12-Mar-2013 > - The following symbolic links have been done: > # ln -s /usr/lib64/libcephfs_jni.so.1.0.0 /usr/lib64/libcephfs_jni.so > # cp /usr/lib64/libcephfs_jni.so.1.0.0 /opt/hadoop/lib/native/ > # ln -s /opt/hadoop/lib/native/libcephfs_jni.so.1.0.0 > /opt/hadoop/lib/native/libcephfs_jni.so.1 > # ln -s /opt/hadoop/lib/native/libcephfs_jni.so.1.0.0 > /opt/hadoop/lib/native/libcephfs_jni.so > # ln -s /usr/share/java/libcephfs.jar /opt/hadoop/lib/ > The following modification to Hadoop-config.sh has been done: > /opt/hadoop/libexec/hadoop-config.sh > # CLASSPATH initially contains $HADOOP_CONF_DIR > CLASSPATH="${HADOOP_CONF_DIR}:/opt/hadoop/lib/libcephfs.jar:/opt/hadoop/lib/hadoop-cephfs.jar" > > So writes and reads to/from Ceph using HDFS CLI works fine, but when I use > hadoop Java library I get the following error: > > ERROR HdfsTraveller:58 - com.ceph.fs.CephNotMountedException: not mounted > > fileSystem.globStatus(path) > FileSystem.globStatus in hdfs api > ceph returns null pointer > > Any idea what's going on? is it a configuration problem? is it a Ceph > problem? Did anybody see that error before? > > > Regards, > Bishoy > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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