You need to stick the CephFS jar files in the hadoop lib folder. On Mon, Sep 23, 2013 at 2:02 PM, Rolando Martins <rolando.martins@xxxxxxxxx> wrote: > I tried to compile it, but the compilation failed. > The error log starts with: > compile-core-classes: > [taskdef] 2013-09-23 20:59:25,540 INFO mortbay.log > (Slf4jLog.java:info(67)) - Logging to > org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via > org.mortbay.log.Slf4jLog > [javac] /home/ubuntu/Projects/hadoop-common/build.xml:487: > warning: 'includeantruntime' was not set, defaulting to > build.sysclasspath=last; set to false for repeatable builds > [javac] Compiling 440 source files to > /home/ubuntu/Projects/hadoop-common/build/classes > [javac] /home/ubuntu/Projects/hadoop-common/src/core/org/apache/hadoop/fs/ceph/CephFS.java:31: > package com.ceph.fs does not exist > [javac] import com.ceph.fs.CephStat; > [javac] ^ > > What are the dependencies that I need to have installed? > > > On Mon, Sep 23, 2013 at 4:32 PM, Noah Watkins <noah.watkins@xxxxxxxxxxx> wrote: >> Ok thanks. That narrows things down a lot. It seems like the keyring >> property is not being recognized, and I don't see so I'm wondering if >> it is possible that the jar file is out of date and doesn't include >> these configuration features. >> >> If you clone http://github.com/ceph/hadoop-common/ and checkout the >> cephfs/branch-1.0 branch, you can run 'ant cephfs' to make a fresh jar >> file. >> >> On Mon, Sep 23, 2013 at 1:22 PM, Rolando Martins >> <rolando.martins@xxxxxxxxx> wrote: >>> My bad, I associated conf_read_file with conf_set. >>> No, it does not appear in the logs. >>> >>> On Mon, Sep 23, 2013 at 4:20 PM, Noah Watkins <noah.watkins@xxxxxxxxxxx> wrote: >>>> I'm not sure what you grepped for. Does this output mean that the >>>> string "conf_set" didn't show up in the log? >>>> >>>> On Mon, Sep 23, 2013 at 12:52 PM, Rolando Martins >>>> <rolando.martins@xxxxxxxxx> wrote: >>>>> 2013-09-23 19:42:22.515836 7f0b58de7700 10 jni: conf_read_file: exit ret 0 >>>>> 2013-09-23 19:42:22.515893 7f0b58de7700 10 jni: ceph_mount: / >>>>> 2013-09-23 19:42:22.516643 7f0b58de7700 -1 monclient(hunting): ERROR: >>>>> missing keyring, cannot use cephx for authentication >>>>> 2013-09-23 19:42:22.516969 7f0b58de7700 20 client.-1 trim_cache size 0 max 0 >>>>> 2013-09-23 19:42:22.517210 7f0b58de7700 10 jni: ceph_mount: exit ret -2 >>>>> 2013-09-23 19:42:23.520569 7f0b58de7700 10 jni: conf_read_file: exit ret 0 >>>>> 2013-09-23 19:42:23.520601 7f0b58de7700 10 jni: ceph_mount: / >>>>> .... >>>>> >>>>> >>>>> On Mon, Sep 23, 2013 at 3:47 PM, Noah Watkins <noah.watkins@xxxxxxxxxxx> wrote: >>>>>> In the log file that you showing, do you see where the keyring file is >>>>>> being set by Hadoop? You can find it by grepping for: "jni: conf_set" >>>>>> >>>>>> On Mon, Sep 23, 2013 at 12:43 PM, Rolando Martins >>>>>> <rolando.martins@xxxxxxxxx> wrote: >>>>>>> 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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