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From Anshu Vajpayee <anshu.vajpa...@gmail.com>
Subject Re: Why there is no native shutdown command in cassandra
Date Mon, 13 Jun 2016 19:28:04 GMT
https://issues.apache.org/jira/browse/CASSANDRA-12001 for your reference.

On Mon, Jun 13, 2016 at 11:55 PM, Jake Luciani <jakers@gmail.com> wrote:

> If that's true it's a bug then. can you open a ticket and include the
> logs? https://issues.apache.org/jira/browse/CASSANDRA
>
> On Mon, Jun 13, 2016 at 2:19 PM, Anshu Vajpayee <anshu.vajpayee@gmail.com>
> wrote:
>
>> I just tested. It doesn't flush memtables like nodetool drain/flush
>> command. Means it only does crash for the node, no graceful shutdown.
>>
>>
>>
>> On Mon, Jun 13, 2016 at 10:51 PM, Jake Luciani <jakers@gmail.com> wrote:
>>
>>> Yeah same as drain.  Just exits at the end.
>>>
>>> On Mon, Jun 13, 2016 at 1:11 PM, Anshu Vajpayee <
>>> anshu.vajpayee@gmail.com> wrote:
>>>
>>>> Thanks for information.
>>>>
>>>> Does stopdaemon also flush memtables  and stop trift and CQL interface
>>>> before shutting down the daemon ?  does node also announce  shutting down
>>>> message  in ring  ?
>>>>
>>>>
>>>> On Mon, Jun 13, 2016 at 10:14 PM, Jake Luciani <jakers@gmail.com>
>>>> wrote:
>>>>
>>>>> If you want to understand why, it's because C* was designed to be
>>>>> crash-only.
>>>>>
>>>>> https://www.usenix.org/conference/hotos-ix/crash-only-software
>>>>>
>>>>> Since this is great for the project but bad for operators experience
>>>>> we have later added this stopdaemon command.
>>>>>
>>>>> On Mon, Jun 13, 2016 at 12:37 PM, Anshu Vajpayee <
>>>>> anshu.vajpayee@gmail.com> wrote:
>>>>>
>>>>>> As per Documentation(pasted as below), It does not stop Daemon .
I
>>>>>> tested also.I was looking for graceful shutdown  for Cassandra
>>>>>> Daemon.Description
>>>>>> <https://docs.datastax.com/en/cassandra/2.1/cassandra/tools/toolsDrain.html?scroll=toolsDrain__description_unique_11>
>>>>>>
>>>>>> Flushes all memtables from the node to SSTables on disk. Cassandra
>>>>>> stops listening for connections from the client and other nodes.
You need
>>>>>> to restart Cassandra after running nodetool drain. You typically
use
>>>>>> this command before upgrading a node to a new version of Cassandra.
To
>>>>>> simply flush memtables to disk, use nodetool flush.
>>>>>>
>>>>>> On Mon, Jun 13, 2016 at 10:00 PM, Jeff Jirsa <
>>>>>> jeff.jirsa@crowdstrike.com> wrote:
>>>>>>
>>>>>>> `nodetool drain`
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> *From: *Anshu Vajpayee <anshu.vajpayee@gmail.com>
>>>>>>> *Reply-To: *"user@cassandra.apache.org" <user@cassandra.apache.org>
>>>>>>> *Date: *Monday, June 13, 2016 at 9:28 AM
>>>>>>> *To: *"user@cassandra.apache.org" <user@cassandra.apache.org>
>>>>>>> *Subject: *Why there is no native shutdown command in cassandra
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Hi All
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Why we dont have native shutdown command in Cassandra ?
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Every software provides graceful shutdown command.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> ​Regards,
>>>>>>>
>>>>>>> Anshu​
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> *Regards,*
>>>>>> *Anshu *
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> http://twitter.com/tjake
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> *Regards,*
>>>> *Anshu *
>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> http://twitter.com/tjake
>>>
>>
>>
>>
>> --
>> *Regards,*
>> *Anshu *
>>
>>
>>
>
>
> --
> http://twitter.com/tjake
>



-- 
*Regards,*
*Anshu *

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