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Date: Fri, 18 Feb 2011 01:41:15 +0530
Message-ID: <AANLkTik2Ugj7rHVL3hD8E=6hf6dKcwyusxRbR7Z_cPFj@mail.gmail.com>
Subject: Updating/inserting into multiple column families using one mutator
 batch
From: Roshan Dawrani <roshandawrani@gmail.com>
To: hector-users@googlegroups.com, user@cassandra.apache.org
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Hi,

Is it ok to update / insert into multiple column families (some regular,
some related super column families) using in one batch?

I earlier had a few separates mutator.execute() calls hitting these CFs, but
I am trying to merge them into a bigger batch.

The issue I am facing is that the smaller batches used to get executed
perfectly, but with the combined one, the updates just hang !

I am not pin-pointing the issue anywhere at this time. I just want to know
if it is normal to update multiple CFs in a batch and if there is deadlock
situation that may arise if that is done.

-- 
Roshan
Blog: http://roshandawrani.wordpress.com/
Twitter: @roshandawrani <http://twitter.com/roshandawrani>
Skype: roshandawrani

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Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

Hi,<div><br></div><div>Is it ok to update / insert into multiple column fam=
ilies (some regular, some related super column families) using in one batch=
?<br clear=3D"all"><br></div><div>I earlier had a few separates mutator.exe=
cute() calls hitting these CFs, but I am trying to merge them into a bigger=
 batch.</div>
<div><br></div><div>The issue I am facing is that the smaller batches used =
to get executed perfectly, but with the combined one, the updates just hang=
 !</div><div><br></div><div>I am not pin-pointing the issue anywhere at thi=
s time. I just want to know if it is normal to update multiple CFs in a bat=
ch and if there is deadlock situation that may arise if that is done.</div>
<div><br>-- <br>Roshan<br>Blog: <a href=3D"http://roshandawrani.wordpress.c=
om/" target=3D"_blank">http://roshandawrani.wordpress.com/</a><br>Twitter: =
<a href=3D"http://twitter.com/roshandawrani" target=3D"_blank">@roshandawra=
ni</a><br>
Skype: roshandawrani<br><br>
</div>

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