Return-Path: X-Original-To: apmail-cassandra-user-archive@www.apache.org Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 9F178DB21 for ; Tue, 4 Sep 2012 19:12:56 +0000 (UTC) Received: (qmail 10340 invoked by uid 500); 4 Sep 2012 19:12:54 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 10313 invoked by uid 500); 4 Sep 2012 19:12:54 -0000 Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@cassandra.apache.org Delivered-To: mailing list user@cassandra.apache.org Received: (qmail 10298 invoked by uid 99); 4 Sep 2012 19:12:54 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 04 Sep 2012 19:12:54 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=FSL_RCVD_USER,HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of chipitsine@gmail.com designates 209.85.160.44 as permitted sender) Received: from [209.85.160.44] (HELO mail-pb0-f44.google.com) (209.85.160.44) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 04 Sep 2012 19:12:49 +0000 Received: by pbbrr4 with SMTP id rr4so9615936pbb.31 for ; Tue, 04 Sep 2012 12:12:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=JJORnMM1n9g5HUNa1sNhS9n116W6Iqq9N4vx9aIzY6Y=; b=Ba9owEeQgvj6lrkhNirwEI8trPgziltyApsbVc2lWNxIsA53B3uGVyNtcKApGT/Xd4 pftAP9kuI9g3Q+QMPHoPXTUGUZB34OQDJZb1QINpgQSkFbVQZ3qIWn379rEoP7EGsZ2G At/qEcxKIyPRWulso6w6s0TQR9aBxOSzUu9C7+1E2wigIEJ60VSsf6SkM6uLK7BtI5s1 ginsfoZUKqIejLbzxab2DP7/XeVCiewZ+Ayflwv5p3aaWrG7V2ZZ82FIiaf/hjMkBk1P pN3fuXUDtaOexje907NkHFjS9iO7Y90f4DsIGp/Non7LBUM4kuzh+XHWybGZUCSH/8cL eg5w== MIME-Version: 1.0 Received: by 10.68.116.37 with SMTP id jt5mr48281774pbb.6.1346785949246; Tue, 04 Sep 2012 12:12:29 -0700 (PDT) Received: by 10.68.239.232 with HTTP; Tue, 4 Sep 2012 12:12:29 -0700 (PDT) In-Reply-To: References: Date: Wed, 5 Sep 2012 01:12:29 +0600 Message-ID: Subject: Re: are asynchronous schema updates possible ? From: =?KOI8-R?B?6czY0SD7ydDJw8nO?= To: user@cassandra.apache.org Content-Type: multipart/alternative; boundary=e89a8ff24d0f17e5c704c8e50a40 X-Virus-Checked: Checked by ClamAV on apache.org --e89a8ff24d0f17e5c704c8e50a40 Content-Type: text/plain; charset=KOI8-R Content-Transfer-Encoding: quoted-printable what kind of problems? "nodes do not agree about schema" exception on later node ? something worse= ? 2012/9/5 Sylvain Lebresne > On Tue, Sep 4, 2012 at 8:23 PM, =E9=CC=D8=D1 =FB=C9=D0=C9=C3=C9=CE wrote: > > Is it ok multiple servers will create/update the same CF at once ? I'm > > looking into dynamic schema update during application deploy/update. > > As said above, it is ok for update the same CF concurrently in 1.1 but > *not* for creation (if you create CF concurrently, whether that is the > same CF or not, you might have problem). The last part will be fixed > in 1.2 however. > > -- > Sylvain > > > > > =D7=D4=CF=D2=CE=C9=CB, 4 =D3=C5=CE=D4=D1=C2=D2=D1 2012 =C7. =D0=CF=CC= =D8=DA=CF=D7=C1=D4=C5=CC=D8 Sylvain Lebresne =D0=C9=D3=C1=CC: > > > >> To add to Aaron response, you can update a CF concurrently in 1.1 > >> already. However, you cannot create multiple CF concurrently just yet, > >> but that will be fixed in 1.2. > >> > >> -- > >> Sylvain > >> > >> On Sun, Aug 26, 2012 at 11:04 PM, aaron morton > > >> wrote: > >> > Concurrent schema changes are coming in 1.2. > >> > > >> > I could not find a single issue that covered it, that may be my bad > >> > search > >> > fu. The issues for 1.2 are here > >> > > https://issues.apache.org/jira/browse/CASSANDRA/fixforversion/12319262 > >> > > >> > Cheers > >> > > >> > ----------------- > >> > Aaron Morton > >> > Freelance Developer > >> > @aaronmorton > >> > http://www.thelastpickle.com > >> > > >> > On 24/08/2012, at 7:06 PM, =E9=CC=D8=D1 =FB=C9=D0=C9=C3=C9=CE wrote: > >> > > >> > Hello! > >> > > >> > we are looking into concurent schema updates (when multiple instance= s > of > >> > application create CFs at once. > >> > > >> > at the http://wiki.apache.org/cassandra/MultiTenant there's open > ticket > >> > 1391, it is said it is still open. > >> > however, in jura is said "1.1.0 is fixed" > >> > > >> > can schema be updated asynchrously on 1.1.x ? or not ? > >> > if multiple server create the same CF ? > >> > > >> > Cheers, > >> > Ilya Shipitsin > >> > > >> > > --e89a8ff24d0f17e5c704c8e50a40 Content-Type: text/html; charset=KOI8-R Content-Transfer-Encoding: quoted-printable
what kind of =9Aproblems?

"nodes do not agree a= bout schema" exception on later node ? something worse?

=
2012/9/5 Sylvain Lebresne <= sylvain@datastax.= com>
On Tue, Sep 4, 2012 at 8:2= 3 PM, =E9=CC=D8=D1 =FB=C9=D0=C9=C3=C9=CE <chipitsine@gmail.com> wrote:
> Is it ok multiple servers will create/update the same CF at once ? I&#= 39;m
> looking into dynamic schema update during application deploy/update.
As said above, it is ok for update the same CF concurrently in 1.1 bu= t
*not* for creation (if you create CF concurrently, whether that is the
same CF or not, you might have problem). The last part will be fixed
in 1.2 however.

--
Sylvain

>
> =D7=D4=CF=D2=CE=C9=CB, 4 =D3=C5=CE=D4=D1=C2=D2=D1 2012 =C7. =D0=CF=CC= =D8=DA=CF=D7=C1=D4=C5=CC=D8 Sylvain Lebresne =D0=C9=D3=C1=CC:
>
>> To add to Aaron response, you can update a CF concurrently in 1.1<= br> >> already. However, you cannot create multiple CF concurrently just = yet,
>> but that will be fixed in 1.2.
>>
>> --
>> Sylvain
>>
>> On Sun, Aug 26, 2012 at 11:04 PM, aaron morton <aaron@thelastpickle.com>
>> wrote:
>> > Concurrent schema changes are coming in 1.2.
>> >
>> > I could not find a single issue that covered it, that may be = my bad
>> > search
>> > fu. The issues for 1.2 are here
>> > https://issues.apache.org/jira/brow= se/CASSANDRA/fixforversion/12319262
>> >
>> > Cheers
>> >
>> > -----------------
>> > Aaron Morton
>> > Freelance Developer
>> > @aaronmorton
>> > ht= tp://www.thelastpickle.com
>> >
>> > On 24/08/2012, at 7:06 PM, =E9=CC=D8=D1 =FB=C9=D0=C9=C3=C9=CE= <chipitsine@gmail.com> w= rote:
>> >
>> > Hello!
>> >
>> > we are looking into concurent schema updates (when multiple i= nstances of
>> > application create CFs at once.
>> >
>> > at the http://wiki.apache.org/cassandra/MultiTenant there= 's open ticket
>> > 1391, it is said it is still open.
>> > however, in jura is said "1.1.0 is fixed"
>> >
>> > can schema be updated asynchrously on 1.1.x ? or not ?
>> > if multiple server create the same CF ?
>> >
>> > Cheers,
>> > Ilya Shipitsin
>> >
>> >

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