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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 17:11:57 GMT
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 *

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