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Posted to user@zookeeper.apache.org by harish lohar <hk...@gmail.com> on 2018/06/18 12:57:07 UTC
How to new quorum leader in ZK Cluster ( except from stat command)
Hi,
Is there a way to query on any follower node and find out about the leader
of the ZK cluster.
Thanks
Harish
Re: How to new quorum leader in ZK Cluster ( except from stat command)
Posted by Enrico Olivelli <eo...@gmail.com>.
FYI the patch has been merged to master (3,6) e to 3.5 branch, and it will
be available from 3.5.5 onwards
https://issues.apache.org/jira/browse/ZOOKEEPER-3066
Enrico
Il giorno mar 19 giu 2018 alle ore 15:47 Enrico Olivelli <
eolivelli@gmail.com> ha scritto:
> I have logged a JIRA
> https://issues.apache.org/jira/browse/ZOOKEEPER-3066
>
> Feel free to add comments to the issue
>
> Enrico
>
> Il giorno mar 19 giu 2018 alle ore 15:04 Enrico Olivelli <
> eolivelli@gmail.com> ha scritto:
>
>> I am going to work on this issue and to provide a patch. For me it is
>> really important. But I will start working on it as soon as I have time.
>>
>> There is already a discussion on the dev@ list about this topic, if
>> anyone has cycles we can continue the discussion there.
>>
>> - Enrico
>>
>>
>> Il giorno lun 18 giu 2018 alle ore 17:14 Ansel Zandegran <
>> Ansel.Zandegran@infor.com> ha scritto:
>>
>>> Hi All,
>>> It would be really nice to have some other way. We have been using
>>> 4Letter (stat) command so far. It’s gonna be deprecated and we are going to
>>> be out of options.
>>> We are running in embedded mode in a environment where JMX and Jetty
>>> server are not allowed.
>>>
>>> It would be really nice if we could get these from QuorumPeer objects or
>>> some other way.
>>>
>>> Best regards,
>>> Ansel
>>>
>>> On 18 Jun 2018, at 15:45, Norbert Kalmar <nkalmar@cloudera.com.INVALID
>>> <ma...@cloudera.com.INVALID>> wrote:
>>>
>>> Sorry, Enrico is right, the two methods I mentioned only gives
>>> information
>>> on themself, just checked.
>>>
>>> Regards,
>>> Norbert
>>>
>>> On Mon, Jun 18, 2018 at 3:37 PM Norbert Kalmar <nkalmar@cloudera.com
>>> <ma...@cloudera.com>> wrote:
>>>
>>> Hi,
>>>
>>> You can also use AdminServer - jetty (unless you are using 3.4 - see
>>>
>>> https://zookeeper.apache.org/doc/r3.5.0-alpha/zookeeperAdmin.html#sc_adminserver
>>> ) or JMX (
>>>
>>> http://zookeeper.apache.org/doc/r3.5.4-beta/zookeeperJMX.html#ch_reference
>>> ).
>>>
>>> (It can also be found in the logs of each instance)
>>>
>>> Regards,
>>> Norbert
>>>
>>> On Mon, Jun 18, 2018 at 2:57 PM harish lohar <hk...@gmail.com> wrote:
>>>
>>> Hi,
>>>
>>> Is there a way to query on any follower node and find out about the
>>> leader
>>> of the ZK cluster.
>>>
>>>
>>> Thanks
>>> Harish
>>>
>>>
>>>
>>>
Re: How to new quorum leader in ZK Cluster ( except from stat command)
Posted by Enrico Olivelli <eo...@gmail.com>.
I have logged a JIRA
https://issues.apache.org/jira/browse/ZOOKEEPER-3066
Feel free to add comments to the issue
Enrico
Il giorno mar 19 giu 2018 alle ore 15:04 Enrico Olivelli <
eolivelli@gmail.com> ha scritto:
> I am going to work on this issue and to provide a patch. For me it is
> really important. But I will start working on it as soon as I have time.
>
> There is already a discussion on the dev@ list about this topic, if
> anyone has cycles we can continue the discussion there.
>
> - Enrico
>
>
> Il giorno lun 18 giu 2018 alle ore 17:14 Ansel Zandegran <
> Ansel.Zandegran@infor.com> ha scritto:
>
>> Hi All,
>> It would be really nice to have some other way. We have been using
>> 4Letter (stat) command so far. It’s gonna be deprecated and we are going to
>> be out of options.
>> We are running in embedded mode in a environment where JMX and Jetty
>> server are not allowed.
>>
>> It would be really nice if we could get these from QuorumPeer objects or
>> some other way.
>>
>> Best regards,
>> Ansel
>>
>> On 18 Jun 2018, at 15:45, Norbert Kalmar <nkalmar@cloudera.com.INVALID
>> <ma...@cloudera.com.INVALID>> wrote:
>>
>> Sorry, Enrico is right, the two methods I mentioned only gives information
>> on themself, just checked.
>>
>> Regards,
>> Norbert
>>
>> On Mon, Jun 18, 2018 at 3:37 PM Norbert Kalmar <nkalmar@cloudera.com
>> <ma...@cloudera.com>> wrote:
>>
>> Hi,
>>
>> You can also use AdminServer - jetty (unless you are using 3.4 - see
>>
>> https://zookeeper.apache.org/doc/r3.5.0-alpha/zookeeperAdmin.html#sc_adminserver
>> ) or JMX (
>> http://zookeeper.apache.org/doc/r3.5.4-beta/zookeeperJMX.html#ch_reference
>> ).
>>
>> (It can also be found in the logs of each instance)
>>
>> Regards,
>> Norbert
>>
>> On Mon, Jun 18, 2018 at 2:57 PM harish lohar <hk...@gmail.com> wrote:
>>
>> Hi,
>>
>> Is there a way to query on any follower node and find out about the leader
>> of the ZK cluster.
>>
>>
>> Thanks
>> Harish
>>
>>
>>
>>
Re: How to new quorum leader in ZK Cluster ( except from stat command)
Posted by Enrico Olivelli <eo...@gmail.com>.
I am going to work on this issue and to provide a patch. For me it is
really important. But I will start working on it as soon as I have time.
There is already a discussion on the dev@ list about this topic, if anyone
has cycles we can continue the discussion there.
- Enrico
Il giorno lun 18 giu 2018 alle ore 17:14 Ansel Zandegran <
Ansel.Zandegran@infor.com> ha scritto:
> Hi All,
> It would be really nice to have some other way. We have been using 4Letter
> (stat) command so far. It’s gonna be deprecated and we are going to be out
> of options.
> We are running in embedded mode in a environment where JMX and Jetty
> server are not allowed.
>
> It would be really nice if we could get these from QuorumPeer objects or
> some other way.
>
> Best regards,
> Ansel
>
> On 18 Jun 2018, at 15:45, Norbert Kalmar <nkalmar@cloudera.com.INVALID
> <ma...@cloudera.com.INVALID>> wrote:
>
> Sorry, Enrico is right, the two methods I mentioned only gives information
> on themself, just checked.
>
> Regards,
> Norbert
>
> On Mon, Jun 18, 2018 at 3:37 PM Norbert Kalmar <nkalmar@cloudera.com
> <ma...@cloudera.com>> wrote:
>
> Hi,
>
> You can also use AdminServer - jetty (unless you are using 3.4 - see
>
> https://zookeeper.apache.org/doc/r3.5.0-alpha/zookeeperAdmin.html#sc_adminserver
> ) or JMX (
> http://zookeeper.apache.org/doc/r3.5.4-beta/zookeeperJMX.html#ch_reference
> ).
>
> (It can also be found in the logs of each instance)
>
> Regards,
> Norbert
>
> On Mon, Jun 18, 2018 at 2:57 PM harish lohar <hk...@gmail.com> wrote:
>
> Hi,
>
> Is there a way to query on any follower node and find out about the leader
> of the ZK cluster.
>
>
> Thanks
> Harish
>
>
>
>
Re: How to new quorum leader in ZK Cluster ( except from stat
command)
Posted by Ansel Zandegran <An...@infor.com>.
Hi All,
It would be really nice to have some other way. We have been using 4Letter (stat) command so far. It’s gonna be deprecated and we are going to be out of options.
We are running in embedded mode in a environment where JMX and Jetty server are not allowed.
It would be really nice if we could get these from QuorumPeer objects or some other way.
Best regards,
Ansel
On 18 Jun 2018, at 15:45, Norbert Kalmar <nk...@cloudera.com.INVALID>> wrote:
Sorry, Enrico is right, the two methods I mentioned only gives information
on themself, just checked.
Regards,
Norbert
On Mon, Jun 18, 2018 at 3:37 PM Norbert Kalmar <nk...@cloudera.com>> wrote:
Hi,
You can also use AdminServer - jetty (unless you are using 3.4 - see
https://zookeeper.apache.org/doc/r3.5.0-alpha/zookeeperAdmin.html#sc_adminserver
) or JMX (
http://zookeeper.apache.org/doc/r3.5.4-beta/zookeeperJMX.html#ch_reference
).
(It can also be found in the logs of each instance)
Regards,
Norbert
On Mon, Jun 18, 2018 at 2:57 PM harish lohar <hk...@gmail.com> wrote:
Hi,
Is there a way to query on any follower node and find out about the leader
of the ZK cluster.
Thanks
Harish
Re: How to new quorum leader in ZK Cluster ( except from stat command)
Posted by Norbert Kalmar <nk...@cloudera.com.INVALID>.
Sorry, Enrico is right, the two methods I mentioned only gives information
on themself, just checked.
Regards,
Norbert
On Mon, Jun 18, 2018 at 3:37 PM Norbert Kalmar <nk...@cloudera.com> wrote:
> Hi,
>
> You can also use AdminServer - jetty (unless you are using 3.4 - see
> https://zookeeper.apache.org/doc/r3.5.0-alpha/zookeeperAdmin.html#sc_adminserver
> ) or JMX (
> http://zookeeper.apache.org/doc/r3.5.4-beta/zookeeperJMX.html#ch_reference
> ).
>
> (It can also be found in the logs of each instance)
>
> Regards,
> Norbert
>
> On Mon, Jun 18, 2018 at 2:57 PM harish lohar <hk...@gmail.com> wrote:
>
>> Hi,
>>
>> Is there a way to query on any follower node and find out about the leader
>> of the ZK cluster.
>>
>>
>> Thanks
>> Harish
>>
>
Re: How to new quorum leader in ZK Cluster ( except from stat command)
Posted by Norbert Kalmar <nk...@cloudera.com.INVALID>.
Hi,
You can also use AdminServer - jetty (unless you are using 3.4 - see
https://zookeeper.apache.org/doc/r3.5.0-alpha/zookeeperAdmin.html#sc_adminserver
) or JMX (
http://zookeeper.apache.org/doc/r3.5.4-beta/zookeeperJMX.html#ch_reference
).
(It can also be found in the logs of each instance)
Regards,
Norbert
On Mon, Jun 18, 2018 at 2:57 PM harish lohar <hk...@gmail.com> wrote:
> Hi,
>
> Is there a way to query on any follower node and find out about the leader
> of the ZK cluster.
>
>
> Thanks
> Harish
>
Re: How to new quorum leader in ZK Cluster ( except from stat command)
Posted by Enrico Olivelli <eo...@gmail.com>.
Hi,
Unfortunately not, I need this feature as well.
As soon as I have time I will work on patch, it will not be so difficult.
Enrico
Il giorno lun 18 giu 2018 alle ore 14:57 harish lohar <hk...@gmail.com>
ha scritto:
> Hi,
>
> Is there a way to query on any follower node and find out about the leader
> of the ZK cluster.
>
>
> Thanks
> Harish
>