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From Raúl Gutiérrez Segalés <...@itevenworks.net>
Subject Re: Read-Only Mode server
Date Mon, 21 Jul 2014 17:03:31 GMT
Hi Ivar,


On 20 July 2014 10:35, Ivar <ivarconr@gmail.com> wrote:

> Hi all,
>
> I have a questions related to the 'Read Only Mode', introduced in zookeeper
> 3.4.x.
>
> 1) Is this option considered safe to run in production at full scale? (If
> not, are there plans to make it safe?)
>

Not sure how others run it in production, but we use the patch proposed at
https://issues.apache.org/jira/browse/ZOOKEEPER-1607.


> 2) Any plans to move it from a JVM System Property to an official
> configuration possible to define via the "zoo.conf"?
>
> 3) Will the java-client automatically check whether quorum, and thereby
> write-mode, exists with other zookeeper-servers? Or do you have to write
> that yourself (looks like the curator clients does probably stick with that
> anyway.)
>

Yeah, the current implementation starts a background thread for to look for
write-enabled servers once
it hits read-only mode.


Cheers,
-rgs

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