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From: Jonathan Ellis <jbellis@gmail.com>
Date: Wed, 13 Jan 2010 20:59:01 -0600
Message-ID: <e06563881001131859s430bfb2ekc302ebf3e71d5c3d@mail.gmail.com>
Subject: Re: Tuning and upgrades
To: cassandra-user@incubator.apache.org
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Good question. :)

On Wed, Jan 13, 2010 at 6:19 PM, Anthony Molinaro
<anthonym@alumni.caltech.edu> wrote:
> Also, I notice in 0.5.0 cassandra.in.sh you have
>
> =A0-XX:SurvivorRatio=3D8 \
>
> then further down in the file
>
> =A0-XX:SurvivorRatio=3D128 \
>
> Does the second end up winning? =A0Or is there some magic here.
>
> -Anthony
>
> On Wed, Jan 13, 2010 at 04:02:48PM -0800, Anthony Molinaro wrote:
>> So the answer is java handles it fine. =A0However, I unfortunately wasn'=
t
>> able to do a rolling restart, for whatever reason the first node caused
>> all the other nodes to start throwing exceptions, so I had to take
>> everything down for a little bit. =A0However, 0.4.2 seems to start faste=
r
>> than 0.4.1, so that was cool.
>>
>> So is the thrift interface for 0.5.0 compatible with that of 0.4.x or
>> do I need to upgrade clients for that upgrade?
>>
>> -Anthony
>>
>> On Wed, Jan 13, 2010 at 04:27:32PM -0600, Jonathan Ellis wrote:
>> > On Wed, Jan 13, 2010 at 4:19 PM, Anthony Molinaro
>> > <anthonym@alumni.caltech.edu> wrote:
>> > > Hi Jonathon,
>> > >
>> > > =A0Thanks for all the information.
>> > >
>> > > =A0I just noticed one difference in the .thrift file between 0.4.1 a=
nd
>> > > 0.4.2, the call to get_slice had an exception removed. =A0Does this
>> > > mean I have to have all my clients rebuilt? =A0(I'm not excactly sur=
e
>> > > of what sorts of things are backwards compatible with thrift).
>> >
>> > Not 100% sure -- python will be fine with it, that is the one I am
>> > most familiar with. =A0Not sure about other clients. =A0Should be easy=
 to
>> > test.
>> >
>> > -Jonathan
>>
>> --
>> ------------------------------------------------------------------------
>> Anthony Molinaro =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 <an=
thonym@alumni.caltech.edu>
>
> --
> ------------------------------------------------------------------------
> Anthony Molinaro =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 <ant=
honym@alumni.caltech.edu>
>