bin/hadoop fs -ls Bad connection to FS. command aborted. exception: (no other information is thrown) ceph log: 2013-09-23 19:42:27.545402 7f0b58de7700 -1 monclient(hunting): ERROR: missing keyring, cannot use cephx for authentication 2013-09-23 19:42:27.545619 7f0b58de7700 20 client.-1 trim_cache size 0 max 0 2013-09-23 19:42:27.545733 7f0b58de7700 10 jni: ceph_mount: exit ret -2 On Mon, Sep 23, 2013 at 3:39 PM, Noah Watkins <noah.watkins@xxxxxxxxxxx> wrote: > What happens when you run `bin/hadoop fs -ls` ? This is entirely > local, and a bit simpler and easier to grok. > > On Mon, Sep 23, 2013 at 12:23 PM, Rolando Martins > <rolando.martins@xxxxxxxxx> wrote: >> I am trying to start hadoop using bin/start-mapred.sh. >> In the HADOOP_HOME/lib, I have: >> lib/hadoop-cephfs.jar lib/libcephfs.jar lib/libcephfs_jni.so >> (the first I downloaded from >> http://ceph.com/docs/master/cephfs/hadoop/ and the other two, I copied >> from my system (after installing the ubuntu package for the ceph java >> client)) >> >> I added to conf/hadoop-env.sh: >> export LD_LIBRARY_PATH=/hyrax/hadoop-ceph/lib >> >> I confirmed using bin/hadoop classpath that both jar are in the classpath. >> >> On Mon, Sep 23, 2013 at 3:17 PM, Noah Watkins <noah.watkins@xxxxxxxxxxx> wrote: >>> How are you invoking Hadoop? Also, I forgot to ask, are you using the >>> wrappers located in github.com/ceph/hadoop-common (or the jar linked >>> to on http://ceph.com/docs/master/cephfs/hadoop/)? >>> >>> On Mon, Sep 23, 2013 at 12:05 PM, Rolando Martins >>> <rolando.martins@xxxxxxxxx> wrote: >>>> Hi Noah, >>>> I enabled the debugging and got: >>>> >>>> 2013-09-23 18:59:34.705894 7f0b58de7700 -1 monclient(hunting): ERROR: >>>> missing keyring, cannot use cephx for authentication >>>> 2013-09-23 18:59:34.706106 7f0b58de7700 20 client.-1 trim_cache size 0 max 0 >>>> 2013-09-23 18:59:34.706225 7f0b58de7700 10 jni: ceph_mount: exit ret -2 >>>> >>>> I have the ceph.client.admin.keyring file in /etc/ceph and I tried >>>> with and without the >>>> parameter in core-site.xml. Unfortunately without success:( >>>> >>>> Thanks, >>>> Rolando >>>> >>>> >>>> <property> >>>> <name>fs.ceph.impl</name> >>>> <value>org.apache.hadoop.fs.ceph.CephFileSystem</value> >>>> </property> >>>> >>>> <property> >>>> <name>fs.default.name</name> >>>> <value>ceph://hyrax1:6789/</value> >>>> </property> >>>> >>>> <property> >>>> <name>ceph.conf.file</name> >>>> <value>/hyrax/hadoop-ceph/ceph/ceph.conf</value> >>>> </property> >>>> >>>> <property> >>>> <name>ceph.root.dir</name> >>>> <value>/</value> >>>> </property> >>>> <property> >>>> <name>ceph.auth.keyring</name> >>>> <value>/hyrax/hadoop-ceph/ceph/ceph.client.admin.keyring</value> >>>> </property> >>>> >>>> On Mon, Sep 23, 2013 at 2:24 PM, Noah Watkins <noah.watkins@xxxxxxxxxxx> wrote: >>>>> Shoot, I thought I had it figured out :) >>>>> >>>>> There is a default admin user created when you first create your >>>>> cluster. After a typical install via ceph-deploy, there should be a >>>>> file called 'ceph.client.admin.keyring', usually sibling to ceph.conf. >>>>> If this is in a standard location (e.g. /etc/ceph) you shouldn't need >>>>> the keyring option, otherwise point 'ceph.auth.keyring' at that >>>>> keyring file. You shouldn't need both the keyring and the keyfile >>>>> options set, but it just depends on how your authentication / users >>>>> are all setup. >>>>> >>>>> The easiest thing to do if that doesn't solve your problem is probably >>>>> to turn on logging so we can see what is blowing up. >>>>> >>>>> In your ceph.conf you can add 'debug client = 20' and 'debug >>>>> javaclient = 20' to the client section. You may also need to set the >>>>> log file 'log file = /path/...'. You don't need to do this on all your >>>>> nodes, just one node where you get the failure. >>>>> >>>>> - Noah >>>>> >>>>>> Thanks, >>>>>> Rolando >>>>>> >>>>>> P.S.: I have the cephFS mounted locally, so the cluster is ok. >>>>>> >>>>>> cluster d9ca74d0-d9f4-436d-92de-762af67c6534 >>>>>> health HEALTH_OK >>>>>> monmap e1: 9 mons at >>>>>> {hyrax1=10.10.10.10:6789/0,hyrax2=10.10.10.12:6789/0,hyrax3=10.10.10.15:6789/0,hyrax4=10.10.10.13:6789/0,hyrax5=10.10.10.16:6789/0,hyrax6=10.10.10.14:6789/0,hyrax7=10.10.10.18:6789/0,hyrax8=10.10.10.17:6789/0,hyrax9=10.10.10.11:6789/0}, >>>>>> election epoch 6, quorum 0,1,2,3,4,5,6,7,8 >>>>>> hyrax1,hyrax2,hyrax3,hyrax4,hyrax5,hyrax6,hyrax7,hyrax8,hyrax9 >>>>>> osdmap e30: 9 osds: 9 up, 9 in >>>>>> pgmap v2457: 192 pgs: 192 active+clean; 10408 bytes data, 44312 MB >>>>>> used, 168 GB / 221 GB avail >>>>>> mdsmap e4: 1/1/1 up {0=hyrax1=up:active} >>>>>> >>>>>> >>>>>> <property> >>>>>> <name>fs.ceph.impl</name> >>>>>> <value>org.apache.hadoop.fs.ceph.CephFileSystem</value> >>>>>> </property> >>>>>> >>>>>> <property> >>>>>> <name>fs.default.name</name> >>>>>> <value>ceph://hyrax1:6789/</value> >>>>>> </property> >>>>>> >>>>>> <property> >>>>>> <name>ceph.conf.file</name> >>>>>> <value>/hyrax/hadoop-ceph/ceph/ceph.conf</value> >>>>>> </property> >>>>>> >>>>>> <property> >>>>>> <name>ceph.root.dir</name> >>>>>> <value>/</value> >>>>>> </property> >>>>>> >>>>>> <property> >>>>>> <name>ceph.auth.keyfile</name> >>>>>> <value>/hyrax/hadoop-ceph/ceph/admin.secret</value> >>>>>> </property> >>>>>> >>>>>> <property> >>>>>> <name>ceph.auth.keyring</name> >>>>>> <value>/hyrax/hadoop-ceph/ceph/ceph.mon.keyring</value> >>>>>> </property> >>>>>> >>>>>> On Mon, Sep 23, 2013 at 11:42 AM, Noah Watkins <noah.watkins@xxxxxxxxxxx> wrote: >>>>>>>> <property> >>>>>>>> <name>ceph.root.dir</name> >>>>>>>> <value>/mnt/mycephfs</value> >>>>>>>> </property> >>>>>>> >>>>>>> This is probably causing the issue. Is this meant to be a local mount >>>>>>> point? The 'ceph.root.dir' property specifies the root directory >>>>>>> /inside/ CephFS, and the Hadoop implementation doesn't require a local >>>>>>> CephFS mount--it uses a client library to interact with the file >>>>>>> system. >>>>>>> >>>>>>> The default value for this property is "/", so you can probably just >>>>>>> remove this from your config file unless your CephFS directory >>>>>>> structure is carved up in a special way. >>>>>>> >>>>>>>> <property> >>>>>>>> <name>ceph.conf.file</name> >>>>>>>> <value>/hyrax/hadoop-ceph/ceph/ceph.conf</value> >>>>>>>> </property> >>>>>>>> <property> >>>>>>>> <name>ceph.auth.keyfile</name> >>>>>>>> <value>/hyrax/hadoop-ceph/ceph/admin.secret</value> >>>>>>>> </property> >>>>>>>> >>>>>>>> <property> >>>>>>>> <name>ceph.auth.keyring</name> >>>>>>>> <value>/hyrax/hadoop-ceph/ceph/ceph.mon.keyring</value> >>>>>>>> </property> >>>>>>> >>>>>>> These files will need to be available locally on every node Hadoop >>>>>>> runs on. I think the error below will occur after these are loaded, so >>>>>>> it probably isn't your issue, though I don't recall exactly at which >>>>>>> point different configuration files are loaded. >>>>>>> >>>>>>>> <property> >>>>>>>> <name>fs.hdfs.impl</name> >>>>>>>> <value>org.apache.hadoop.fs.ceph.CephFileSystem</value> >>>>>>>> </property> >>>>>>> >>>>>>> I don't think this is part of the problem you are seeing, but this >>>>>>> 'fs.hdfs.impl' property should probably be removed. We aren't >>>>>>> overriding HDFS, just replacing it. >>>>>>> >>>>>>>> <property> >>>>>>>> <name>ceph.mon.address</name> >>>>>>>> <value>hyrax1:6789</value> >>>>>>>> </property> >>>>>>> >>>>>>> This was already specified in your 'fs.default.name' property. I don't >>>>>>> think that duplicating it is an issue, but I should probably update >>>>>>> the documentation to make it clear that the monitor only needs to be >>>>>>> listed once. >>>>>>> >>>>>>> Thanks! >>>>>>> Noah _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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