You can list multiple DataFileDirectories, and Cassandra will scatter files
across all of them. Use 1 disk for the commitlog, and 3 disks for data
directories.
See http://wiki.apache.org/cassandra/CassandraHardware#Disk
Thanks,
Stu
-Original Message-
From: Eric Rosenberry
Anyone can edit any page once they have an account: click the Login link at
the top right next to the search box to create an account.
Thanks,
Stu
-Original Message-
From: Eric Rosenberry e...@rosenberry.org
Sent: Wednesday, March 10, 2010 2:52am
To: cassandra-user@incubator.apache.org
all the data ends up on one disk. If
you need the additional io, you will want raid0. But simply listing multiple
DataFileDirectories will not work.
-Anthony
On Wed, Mar 10, 2010 at 02:08:13AM -0600, Stu Hood wrote:
You can list multiple DataFileDirectories, and Cassandra will scatter files
Definitely on board!
-Original Message-
From: Dan Di Spaltro dan.dispal...@gmail.com
Sent: Tuesday, March 9, 2010 8:05pm
To: cassandra-user@incubator.apache.org
Subject: Re: Hackathon?!?
Alright guys, we have settled on a date for the Cassandra meetup on...
April 15th, better known as,
Run `ant clean` before building. A few files moved around.
-Original Message-
From: Cool BSD c...@coolbsd.com
Sent: Monday, March 8, 2010 5:18pm
To: cassandra-user cassandra-user@incubator.apache.org
Subject: Latest check-in to trunk/ is broken
version info:
$ svn info
Path: .
URL:
But rather than switching, you should definitely try the 'loadbalance' approach
first, and see whether OrderPP works out for you.
-Original Message-
From: Chris Goffinet goffi...@digg.com
Sent: Friday, March 5, 2010 1:43pm
To: cassandra-user@incubator.apache.org
Subject: Re: Dynamically
You are probably in the portion of bootstrap where data to be transferred is
split out to disk, which can take a while: see
https://issues.apache.org/jira/browse/CASSANDRA-579
Look for a 'streaming' subdirectory in your data directories to confirm.
-Original Message-
From: Brian Frank
In HBase you have table:row:family:key:val:version, which some people
might consider richer
Cassandra is actually table:family:row:key:val[:subval], where subvals are the
columns stored in a supercolumn (which can be easily arranged by timestamp to
give the versioned approach).
-Original
Ran,
There are bounds to how large your data directory will grow, relative to the
actual data. Please read up on compaction:
http://wiki.apache.org/cassandra/MemtableSSTable , and if you have a
significant number of deletes occuring, also read
After I ran nodeprobe compact on node B its read latency went up to 150ms.
The compaction process can take a while to finish... in 0.5 you need to watch
the logs to figure out when it has actually finished, and then you should start
seeing the improvement in read latency.
Is there any way to
The combination of 'too many open files' and lots of memtable flushes could
mean you have tons and tons of sstables on disk. This can make reads especially
slow.
If you are seeing the timeouts on reads a lot more often than on writes, then
this explanation might make sense, and you should
PS: If this turns out to actually be the problem, I'll open a ticket for it.
Thanks,
Stu
-Original Message-
From: Stu Hood stuart.h...@rackspace.com
Sent: Sunday, December 13, 2009 12:28pm
To: cassandra-user@incubator.apache.org
Subject: Re: OOM Exception
With 248G per box, you probably
You need a quorum relative to your replication factor. You mentioned in the
first e-mail that you have RF=2, so you need a quorum of 2. If you use RF=3,
then you need a quorum of 2 as well.
-Original Message-
From: B. Todd Burruss bburr...@real.com
Sent: Friday, November 20, 2009 4:14pm
Hey Ted,
Would you mind creating a ticket for this issue in JIRA? A lot of discussion
has gone on, and a place to collect the design and feedback would be a good
start.
Thanks,
Stu
-Original Message-
From: Ted Zlatanov t...@lifelogs.com
Sent: Wednesday, November 11, 2009 3:28pm
To:
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