Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm
Precedence: bulk
Reply-To: user@cassandra.apache.org
Received-SPF: pass (athena.apache.org: domain of olek.stasiak@gmail.com
 designates 209.85.220.170 as permitted sender)
MIME-Version: 1.0
In-Reply-To: 
 <CAEDUwd0f6Rq70K4GrWrsXzY3ZQw1hbreRxJ3VRSowfsQfonHqA@mail.gmail.com>
References: 
 <CACUS8n35mAq3bSZ=egePzAt+kpyjE1LS=vaTxA_dU661DBsgQg@mail.gmail.com>
	<531F0457.4020701@gmail.com>
	<CACUS8n2MvPhQnSpfvJni+n-Hqe5xTJfuiWGqJMyOhmCUvqDepQ@mail.gmail.com>
	<531F0C47.4040003@gmail.com>
	<CACUS8n0dFYk=jr2JFea5eE+=u9OctptFDP-qQb-=2LajVjX=+w@mail.gmail.com>
	<CACUS8n19EPwpEEL2HCeKqbrtrJpC8Vp3KXMCOLsOB3HsFbvr5Q@mail.gmail.com>
	<CAEDUwd3XgD466_7Lke8NYkNcFZECLnp82jStsMYba2Pe9nqtbQ@mail.gmail.com>
	<CACUS8n16mT_w47kFXAVmmSNQDnxH2ODO7ufew7tKVx+4g5Rsdw@mail.gmail.com>
	<CAEDUwd230r3mhBvKJ1YtxGq17AzuiH=94u9bnDJ7RMuaQZX29w@mail.gmail.com>
	<CACUS8n2=+Z1S-09r_RWFuYGq8FSQOCtWFMdTncXzW2CoKSUY3w@mail.gmail.com>
	<CAEDUwd0f6Rq70K4GrWrsXzY3ZQw1hbreRxJ3VRSowfsQfonHqA@mail.gmail.com>
Date: Fri, 14 Mar 2014 18:28:09 +0100
Message-ID: 
 <CACUS8n3s4kwg8DqLMTevdUXRLxmLOyd=9EGqBzz_v3nQ7BUqQQ@mail.gmail.com>
Subject: Re: Problems with adding datacenter and schema version disagreement
From: "olek.stasiak@gmail.com" <olek.stasiak@gmail.com>
To: Emaillist for cass users <user@cassandra.apache.org>
Content-Type: multipart/alternative; boundary=001a1134a86ebe5e2f04f49464a6

--001a1134a86ebe5e2f04f49464a6
Content-Type: text/plain; charset=ISO-8859-2
Content-Transfer-Encoding: quoted-printable

Ok, I'll do this during the weekend, I'll give you a feedback on Monday.
Regards
Aleksander
14 mar 2014 18:15 "Robert Coli" <rcoli@eventbrite.com> napisa=B3(a):

> On Fri, Mar 14, 2014 at 12:40 AM, olek.stasiak@gmail.com <
> olek.stasiak@gmail.com> wrote:
>
>> OK, I see, so the data files stay in place, i have to just stop
>> cassandra on whole cluster, remove system schema and then start
>> cluster and recreate all keyspaces with all column families? Data will
>> be than loaded automatically from existing ssstables, right?
>>
>
> Right. If you have clients reading while loading the schema, they may get
> exceptions.
>
>
>> So one more question: what about KS system_traces? should it be
>> removed and recreted? What data it's holding?
>>
>
> It's holding data about tracing, a profiling feature. It's safe to nuke.
>
> =3DRob
>
>

--001a1134a86ebe5e2f04f49464a6
Content-Type: text/html; charset=ISO-8859-2
Content-Transfer-Encoding: quoted-printable

<p>Ok, I&#39;ll do this during the weekend, I&#39;ll give you a feedback on=
 Monday.<br>
Regards<br>
Aleksander</p>
<div class=3D"gmail_quote">14 mar 2014 18:15 &quot;Robert Coli&quot; &lt;<a=
 href=3D"mailto:rcoli@eventbrite.com">rcoli@eventbrite.com</a>&gt; napisa=
=B3(a):<br type=3D"attribution"><blockquote class=3D"gmail_quote" style=3D"=
margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir=3D"ltr"><div class=3D"gmail_extra"><div class=3D"gmail_quote">On F=
ri, Mar 14, 2014 at 12:40 AM, <a href=3D"mailto:olek.stasiak@gmail.com" tar=
get=3D"_blank">olek.stasiak@gmail.com</a> <span dir=3D"ltr">&lt;<a href=3D"=
mailto:olek.stasiak@gmail.com" target=3D"_blank">olek.stasiak@gmail.com</a>=
&gt;</span> wrote:<br>

<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">OK, I see, so the data files stay in place, =
i have to just stop<br>
cassandra on whole cluster, remove system schema and then start<br>
cluster and recreate all keyspaces with all column families? Data will<br>
be than loaded automatically from existing ssstables, right?<br></blockquot=
e><div><br></div><div>Right. If you have clients reading while loading the =
schema, they may get exceptions.</div><div>=A0</div><blockquote class=3D"gm=
ail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-le=
ft:1ex">


So one more question: what about KS system_traces? should it be<br>
removed and recreted? What data it&#39;s holding?<br></blockquote><div><br>=
</div><div>It&#39;s holding data about tracing, a profiling feature. It&#39=
;s safe to nuke.</div><div><br></div><div>=3DRob</div><div>=A0</div></div>

</div></div>
</blockquote></div>

--001a1134a86ebe5e2f04f49464a6--