Yes I had started the slaves as
service mesos-slave start
But had not done the correct way on the master, which is supposed to be:
service mesos-master start
The slaves do appear after having made that correction: thanks.
2015-09-05 14:55 GMT-07:00 Marco Massenzio <ma...@mesosphere.io>:
> Stephen:
>
> Klaus is correct, you are starting the Master in "standalone" mode, not
> with zookeeper support: it needs adding the --zk=zk://10.xx.xx.124:2181/mesos
> --quorum=1 options (at the very least).
>
> As you correctly noted, the contents of the /mesos znode is empty and thus
> the agent nodes cannot find elected Master leader (also, if you are running
> more than one Master, they won't 'know' about each other and won't be able
> to elect a leader).
>
> To check that your settings work, you can (a) look in Master logs (it will
> log a lot of info when connecting to ZK) and (b) see that under /mesos a
> number of json.info_0000nn nodes will appear (whose contents are JSON so
> you can double check that the contents make sense).
>
> You can find more info here[0].
>
> [0]
> http://codetrips.com/2015/08/16/apache-mesos-leader-master-discovery-using-zookeeper-part-2/
>
> *Marco Massenzio*
>
> *Distributed Systems Engineerhttp://codetrips.com <http://codetrips.com>*
>
> On Fri, Sep 4, 2015 at 5:33 PM, Stephen Boesch <java...@gmail.com> wrote:
>
>>
>> I installed using yum -y install mesos. That did work.
>>
>> Now the master and slaves do not see each other.
>>
>>
>> Here is the master:
>> $ ps -ef | grep mesos | grep -v grep
>> stack 30236 17902 0 00:09 pts/4 00:00:04
>> /mnt/mesos/build/src/.libs/lt-mesos-master --work_dir=/tmp/mesos
>> --ip=10.xx.xx.124
>>
>>
>> Here is one of the 20 slaves:
>>
>> ps -ef | grep mesos | grep -v grep
>> root 26086 1 0 00:10 ? 00:00:00 /usr/sbin/mesos-slave
>> --master=zk://10.xx.xx.124:2181/mesos --log_dir=/var/log/mesos
>> root 26092 26086 0 00:10 ? 00:00:00 logger -p user.info -t
>> mesos-slave[26086]
>> root 26093 26086 0 00:10 ? 00:00:00 logger -p user.err -t
>> mesos-slave[26086]
>>
>>
>> Note the slave and master are on correct same ip address
>>
>> The /etc/mesos/zk seems to be set properly : and I do see the /mesos node
>> in zookeeper is updated after restarting the master
>>
>> However the zookeeper node is empty:
>>
>> [zk: localhost:2181(CONNECTED) 10] ls /mesos
>> []
>>
>> The node is world accessible so no permission issue:
>>
>> [zk: localhost:2181(CONNECTED) 12] getAcl /mesos
>> 'world,'anyone
>> : cdrwa
>>
>> Why is the zookeeper node empty? Is this the reason the master and
>> slaves are not connecting?
>>
>> 2015-09-04 14:56 GMT-07:00 craig w <codecr...@gmail.com>:
>>
>>> No problem, they have a "downloads" link inn their menu:
>>> https://mesosphere.com/downloads/
>>> On Sep 4, 2015 5:43 PM, "Stephen Boesch" <java...@gmail.com> wrote:
>>>
>>>> @Craig . That is an incomplete answer - given that such links are not
>>>> presented in an obvious manner . Maybe you managed to find a link on
>>>> their site that provides prebuilt for Centos7: if so then please share it.
>>>>
>>>>
>>>> I had previously found a link on their site for prebuilt binaries but
>>>> is based on using CDH4 (which is not possible for my company). It is also
>>>> old.
>>>>
>>>> https://docs.mesosphere.com/tutorials/install_centos_rhel/
>>>>
>>>>
>>>> 2015-09-04 14:27 GMT-07:00 craig w <codecr...@gmail.com>:
>>>>
>>>>> Mesosphere has packages prebuilt, go to their site to find how to
>>>>> install
>>>>> On Sep 4, 2015 5:11 PM, "Stephen Boesch" <java...@gmail.com> wrote:
>>>>>
>>>>>>
>>>>>> After following the directions here:
>>>>>> http://mesos.apache.org/gettingstarted/
>>>>>>
>>>>>> Which for centos7 includes the following:
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> # Change working directory.
>>>>>> $ cd mesos
>>>>>>
>>>>>> # Bootstrap (Only required if building from git repository).
>>>>>> $ ./bootstrap
>>>>>>
>>>>>> # Configure and build.
>>>>>> $ mkdir build
>>>>>> $ cd build
>>>>>> $ ../configure
>>>>>> $ make
>>>>>>
>>>>>> In order to speed up the build and reduce verbosity of the logs, you
>>>>>> can append-j <number of cores> V=0 to make.
>>>>>>
>>>>>> # Run test suite.
>>>>>> $ make check
>>>>>>
>>>>>> # Install (Optional).
>>>>>> $ make install
>>>>>>
>>>>>>
>>>>>>
>>>>>> But the installation is not correct afterwards: here is the bin
>>>>>> directory:
>>>>>>
>>>>>> $ ll bin
>>>>>> total 92
>>>>>> -rw-r--r--. 1 stack stack 1769 Jul 17 23:14
>>>>>> valgrind-mesos-tests.sh.in
>>>>>> -rw-r--r--. 1 stack stack 1769 Jul 17 23:14
>>>>>> valgrind-mesos-slave.sh.in
>>>>>> -rw-r--r--. 1 stack stack 1772 Jul 17 23:14
>>>>>> valgrind-mesos-master.sh.in
>>>>>> -rw-r--r--. 1 stack stack 1769 Jul 17 23:14
>>>>>> valgrind-mesos-local.sh.in
>>>>>> -rw-r--r--. 1 stack stack 1026 Jul 17 23:14 mesos-tests.sh.in
>>>>>> -rw-r--r--. 1 stack stack 901 Jul 17 23:14 mesos-tests-flags.sh.in
>>>>>> -rw-r--r--. 1 stack stack 1019 Jul 17 23:14 mesos-slave.sh.in
>>>>>> -rw-r--r--. 1 stack stack 1721 Jul 17 23:14 mesos-slave-flags.sh.in
>>>>>> -rw-r--r--. 1 stack stack 1366 Jul 17 23:14 mesos.sh.in
>>>>>> -rw-r--r--. 1 stack stack 1026 Jul 17 23:14 mesos-master.sh.in
>>>>>> -rw-r--r--. 1 stack stack 858 Jul 17 23:14 mesos-master-flags.sh.in
>>>>>> -rw-r--r--. 1 stack stack 1023 Jul 17 23:14 mesos-local.sh.in
>>>>>> -rw-r--r--. 1 stack stack 935 Jul 17 23:14 mesos-local-flags.sh.in
>>>>>> -rw-r--r--. 1 stack stack 1466 Jul 17 23:14 lldb-mesos-tests.sh.in
>>>>>> -rw-r--r--. 1 stack stack 1489 Jul 17 23:14 lldb-mesos-slave.sh.in
>>>>>> -rw-r--r--. 1 stack stack 1492 Jul 17 23:14 lldb-mesos-master.sh.in
>>>>>> -rw-r--r--. 1 stack stack 1489 Jul 17 23:14 lldb-mesos-local.sh.in
>>>>>> -rw-r--r--. 1 stack stack 1498 Jul 17 23:14 gdb-mesos-tests.sh.in
>>>>>> -rw-r--r--. 1 stack stack 1527 Jul 17 23:14 gdb-mesos-slave.sh.in
>>>>>> -rw-r--r--. 1 stack stack 1530 Jul 17 23:14 gdb-mesos-master.sh.in
>>>>>> -rw-r--r--. 1 stack stack 1521 Jul 17 23:14 gdb-mesos-local.sh.in
>>>>>> drwxr-xr-x. 2 stack stack 4096 Jul 17 23:21 .
>>>>>> drwxr-xr-x. 11 stack stack 4096 Sep 4 20:08 ..
>>>>>>
>>>>>> So .. two things:
>>>>>>
>>>>>> (a) what is missing from the installation instructions?
>>>>>>
>>>>>> (b) Is there an *up to date *rpm/yum installation for centos7?
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>
>>
>
