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 it is possible that the jar file is out of date and doesn't include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
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