Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm
Precedence: bulk
Reply-To: user@cassandra.apache.org
Received-SPF: pass (nike.apache.org: domain of comomore@gmail.com designates
 209.85.212.47 as permitted sender)
MIME-Version: 1.0
In-Reply-To: 
 <CANN9sNpkzvTDFHVO1bW+Hor8AbZLreRAs-8KJDcWSqCuP14+vw@mail.gmail.com>
References: 
 <CANN9sNpkzvTDFHVO1bW+Hor8AbZLreRAs-8KJDcWSqCuP14+vw@mail.gmail.com>
Date: Mon, 9 Sep 2013 22:24:12 -0500
Message-ID: 
 <CAP7WDFWKw5+vudJJKyf6z-w+m7BMKMByHAWB5ChSLYbDLMttpg@mail.gmail.com>
Subject: Re: Best way to track backups/delays for cross DC replication
From: srmore <comomore@gmail.com>
To: user@cassandra.apache.org
Content-Type: multipart/alternative; boundary=20cf3071c9fceb9e5a04e5ff0932

--20cf3071c9fceb9e5a04e5ff0932
Content-Type: text/plain; charset=ISO-8859-1

I would be interested to know that too, it would be great if anyone can
share how they do (or do not) track or monitor cross datacenter migrations.

Thanks !


On Wed, Sep 4, 2013 at 10:13 AM, Anand Somani <meatforums@gmail.com> wrote:

> Hi,
>
> Scenario is a cluster spanning across datacenters and we use Local_quorum
> and want to know when things are not getting replicated across data
> centers. What is the best way to track/alert on that?
>
> I was planning on using the HintedHandOffManager (JMX)
> => org.apache.cassandra.db:type=HintedHandoffManager countPendingHints. Are
> there other metrics (maybe exposed via nodetool) I should be looking at. At
> this point we are on 1.1.6 cassandra.
>
> Thanks
> Anand
>

--20cf3071c9fceb9e5a04e5ff0932
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>I would be interested to know that too, it would be g=
reat if anyone can share how they do (or do not) track or monitor cross dat=
acenter migrations.<br><br></div>Thanks !<br></div><div class=3D"gmail_extr=
a">
<br><br><div class=3D"gmail_quote">On Wed, Sep 4, 2013 at 10:13 AM, Anand S=
omani <span dir=3D"ltr">&lt;<a href=3D"mailto:meatforums@gmail.com" target=
=3D"_blank">meatforums@gmail.com</a>&gt;</span> wrote:<br><blockquote class=
=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padd=
ing-left:1ex">
<div dir=3D"ltr">Hi,<div><br></div><div>Scenario is a cluster spanning acro=
ss datacenters and we use Local_quorum and want to know when things are not=
 getting replicated across data centers. What is the best way to track/aler=
t on that?=A0</div>

<div><br></div><div>I was planning on using the HintedHandOffManager (JMX) =
=3D&gt;=A0org.apache.cassandra.db:type=3DHintedHandoffManager countPendingH=
ints. Are there other metrics (maybe exposed via nodetool) I should be look=
ing at. At this point we are on 1.1.6 cassandra.</div>

<div><br></div><div>Thanks</div><span class=3D"HOEnZb"><font color=3D"#8888=
88"><div>Anand</div></font></span></div>
</blockquote></div><br></div>

--20cf3071c9fceb9e5a04e5ff0932--