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List:       cassandra-user
Subject:    Re: Hbase vs Cassandra
From:       Cem Cayiroglu <cayiroglu () gmail ! com>
Date:       2015-05-31 14:30:54
Message-ID: F4E2862D-9A4A-4BBC-B640-39F88E1BCBF5 () gmail ! com
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I think the links provided are general comparison. I will try to explain the \
difference as I implemented time series with both Cassandra and HBase. We migrated \
                from Cassandra to HBase. 
Reasons: 
Scan is fast with HBase. It fits better with time series data model. Please look at \
opentsdb. Cassandra models it with large rows.  Server side filtering. You can use to \
filter some of your time series data on the server side.  Hbase has a better \
integration with hadoop in general. We had to write our own bulk loader using \
mapreduce for cassandra. hbase has already had a tool for that. There is a nice \
integration with flume and kite.  High availability didnet matter for us. 10 secs \
down is fine for our use cases.HBase started to support eventually consistent reads.  \


Cem


Sent from my iPhone

> On May 30, 2015, at 4:24 PM, Brady Gentile <brady@datastax.com> wrote:
> 
> Hey Ajay,
> 
> Here are some use cases from PlanetCassandra.org of companies who chose Cassandra \
> over HBase after evaluation, or migrated to Cassandra from HBase. 
> The eComNext interview cited on the page touches on time-series data; if you're \
> interested in talking with Miguel Coira, I'd be happy to make that connection. 
> http://planetcassandra.org/hbase-to-cassandra-migration/
> 
> Brady Gentile
> Program Manager
> 480.735.1133
> 
> 
> > On May 29, 2015, at 12:09 PM, Ajay <ajay.garga@gmail.com> wrote:
> > 
> > Hi,
> > 
> > I need some info on Hbase vs Cassandra as a data store (in general plus specific \
> > to time series data). 
> > The comparison in the following helps:
> > 1: features 
> > 2: deployment and monitoring 
> > 3: performance 
> > 4: anything else
> > 
> > Thanks 
> > Ajay


[Attachment #3 (text/html)]

<html><head><meta http-equiv="content-type" content="text/html; \
charset=utf-8"></head><body dir="auto"><div><br>I think the links provided are \
general comparison. I will try to explain the difference as I implemented time series \
with both Cassandra and HBase. We migrated from Cassandra to \
HBase.&nbsp;</div><div>Reasons:&nbsp;</div><div>Scan is fast with HBase. It fits \
better with time series data model. Please look at opentsdb. Cassandra models it with \
large rows.&nbsp;</div><div>Server side filtering. You can use to filter some of your \
time series data on the server side.&nbsp;</div><div>Hbase has a better integration \
with hadoop in general. We had to write our own bulk loader using mapreduce for \
cassandra. hbase has already had a tool for that. There is a nice integration with \
flume and kite.&nbsp;</div><div>High availability didnet matter for us. 10 secs down \
is fine for our use cases.HBase started to support eventually consistent reads. \
&nbsp;</div><div><br></div><div>Cem</div><div><br></div><div><br></div><div>Sent from \
my iPhone</div><div><br>On May 30, 2015, at 4:24 PM, Brady Gentile &lt;<a \
href="mailto:brady@datastax.com">brady@datastax.com</a>&gt; \
wrote:<br><br></div><blockquote type="cite"><div><meta http-equiv="content-type" \
content="text/html; charset=utf-8"><div>Hey Ajay,</div><div><br></div><div>Here are \
some use cases from <a href="http://PlanetCassandra.org">PlanetCassandra.org</a> of \
companies who chose Cassandra over HBase after evaluation, or migrated to Cassandra \
from HBase.</div><div><br></div><div>The eComNext interview cited on the page touches \
on time-series data; if you're interested in talking with Miguel Coira, I'd be happy \
to make that connection.</div><div><br></div><div><a \
href="http://planetcassandra.org/hbase-to-cassandra-migration/">http://planetcassandra.org/hbase-to-cassandra-migration/</a><br><br>Brady \
Gentile<div>Program Manager</div><div>480.735.1133</div><div><div><br></div></div></div><div><br>On \
May 29, 2015, at 12:09 PM, Ajay &lt;<a \
href="mailto:ajay.garga@gmail.com">ajay.garga@gmail.com</a>&gt; \
wrote:<br><br></div><blockquote type="cite"><div><p dir="ltr">Hi, </p> <p dir="ltr">I \
need some info on Hbase vs Cassandra as a data store (in general plus specific to \
time series data). </p> <p dir="ltr">The comparison in the following helps:<br>
1: features <br>
2: deployment and monitoring <br>
3: performance <br>
4: anything else </p>
<p dir="ltr">Thanks <br>
Ajay </p>
</div></blockquote></div></blockquote></body></html>



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