On Sun, Apr 18, 2010 at 9:14 AM, dir dir wrote:
> Hi Gary,
>
>>The main reason is that the compaction operation (removing deleted
>>values) currently requires that an entire row be read into memory.
>
> Thank you for your explanation. But I still do not understand what do you
> mean.
Do you have
With the 0.6.0 release, the windows cassandra.bat file errors out. There's a
bug filed for this already. There's a README or something similar in the
install directory, that tells you the basic CLI operations and explains the
basic data model.
On Sun, Apr 18, 2010 at 11:23 PM, S Ahmed wrote:
> I
Interesting, I'm just finding windows to be a pain, particular starting up
java apps. (I guess I just need to learn!)
How exactly would you startup Cassandra on a windows machine? i.e when the
server reboots, how will it run the java -jar cassandar ?
On Sun, Apr 18, 2010 at 7:35 PM, Joe Stump
Cheers
On Mon, Apr 19, 2010 at 10:04 AM, Jeff Hodges wrote:
> It does, however, include a change the networking layout[1]. It's not
> a simple rolling deploy. You will have to do a full cluster restart to
> upgrade.
>
> [1] https://issues.apache.org/jira/browse/CASSANDRA-969
> --
> Jeff
>
> On S
It does, however, include a change the networking layout[1]. It's not
a simple rolling deploy. You will have to do a full cluster restart to
upgrade.
[1] https://issues.apache.org/jira/browse/CASSANDRA-969
--
Jeff
On Sun, Apr 18, 2010 at 6:58 PM, Eric Evans wrote:
>
> Hot on the trails of 0.6.0
Hot on the trails of 0.6.0 comes our latest, 0.6.1. This stable point
release contains a number of important bugfixes[1] and is a painless
upgrade from 0.6.0.
Enjoy!
[1]: http://bit.ly/9NqwAb (changelog)
--
Eric Evans
eev...@rackspace.com
> commitlog must be pointed to a directory that _only_ has commitlog data in
it
This was exactly it.. I was outputting log4j.properties log on /log
directory which I have created to store commitlog - also. I apologize if
this is documented in the tutorial somewhere!
On Sun, Apr 18, 2010 at 9:07 P
Ha! Nice catch.
Yes, commitlog must be pointed to a directory that _only_ has
commitlog data in it.
On Sun, Apr 18, 2010 at 7:27 PM, Brandon Williams wrote:
> On Sun, Apr 18, 2010 at 4:30 PM, Soichi Hayashi
> wrote:
>>
>> INFO 21:27:29,482 Replaying
>> /home/hayashis/app/apache-cassandra-0.6.
I did regenerate the thrift bindings. What I have found in testing is that
the batch_mutate command occasionally sends bad data to thrift when i try to
insert a set of items with too many columns. I don't know if this is a
problem with PHP, or the thrift PHP library. I have found that a limit of
On Sun, Apr 18, 2010 at 4:30 PM, Soichi Hayashi wrote:
> INFO 21:27:29,482 Replaying
> /home/hayashis/app/apache-cassandra-0.6.0/log/log.txt
> java.lang.OutOfMemoryError: Java heap space
>
I'm not sure what log.txt might be, but based on the filename it is not a
Cassandra commitlog. You can pro
You have a corrupt commitlogheader. The easiest fix is deleting the
commitlog segment in question.
I created https://issues.apache.org/jira/browse/CASSANDRA-999 to add
checksumming to the commitlog headers (to detect log segments that
didn't fsync cleanly), but that wouldn't help in your case bec
Ah.. Thanks for the great tip!
I tried decreasing it and tried various combination (including the one you
have suggested) but I am still getting the same error message. Following is
the /prop/meminfo on the machine that I am using.
2010-04-18 23:56:54 UTC [r...@data-itb:/usr/local/apache-cassandr
On Fri, Apr 16, 2010 at 12:50 PM, Lee Parker wrote:
> This process is running on two clients each working on a separate part of
> the mysql data which totals to about 70G. Each time I start it up, it will
> work fine for about 1 hour and then it will crash the servers. The error
> message on th
If you are trying to run on machines with less than 1GB of memory, or
OS resource limits that prevent allocation of 1GB of memory, that is
what happens. You shouldn't be increasing -Xms, you should be
decreasing -Xmx. Try -Xms16M -Xmx500M.
b
On Sun, Apr 18, 2010 at 2:30 PM, Soichi Hayashi wro
On Apr 18, 2010, at 5:33 PM, S Ahmed wrote:
> Obviously if you run asp.net on windows, it is probably a VERY good idea to
> be running cassandra on a linux box.
Actually, I'm not sure this is true. A few people have found Windows performs
fairly well with Cassandra, if I recall correctly. Obvi
Just want to be clear, is it true that it really makes no difference if my
web application is asp.net or java or python, since the way we communicate
to Cassandra is via the Thrift generated interface?
Obviously if you run asp.net on windows, it is probably a VERY good idea to
be running cassandra
In 0.6.0 and trunk, it is located at
src/java/org/apache/cassandra/hadoop/ColumnFamilyInputFormat.java
You might be using a pre-release version of 0.6 if you are seeing a fat client
based InputFormat.
-Original Message-
From: "Joost Ouwerkerk"
Sent: Sunday, April 18, 2010 4:53pm
To: u
Where is the ColumnFamilyInputFormat that uses Thrift? I don't actually
have a preference about client, I just want to be consistent with
ColumnInputFormat.
On Sun, Apr 18, 2010 at 5:37 PM, Stu Hood wrote:
> ColumnFamilyInputFormat no longer uses the fat client API, and instead uses
> Thrift. T
ColumnFamilyInputFormat no longer uses the fat client API, and instead uses
Thrift. There are still some significant problems with the fat client, so it
shouldn't be used without a good understanding of those problems.
If you still want to use it, check out contrib/bmt_example, but I'd recommend
When I made that statement, we were expecting to have fixed the issue within a
month or two... the fix has been dragged out significantly due to some
disagreements around implementation, but it is a problem that will still be
fixed in the near future.
-Original Message-
From: "Mason Ha
Hi.
I just downloaded Cassandra 0.6.0 and followed "Getting Started" tutorial.
When I try to start up Cassandra, I get following error message.
2010-04-18 20:53:39 UTC [hayas...@data-itb:~/app/apache-cassandra-0.6.0]$
./bin/cassandra -f
INFO 21:27:29,127 Auto DiskAccessMode determined to be mma
I'm a Cassandra noob trying to validate Cassandra as a viable alternative to
HBase (which we've been using for over a year) for our application. So far,
I've had no success getting Cassandra working with MapReduce.
My first step is inserting data into Cassandra. I've created a MapRed job
based u
I'm a Cassandra noob trying to validate Cassandra as a viable alternative to
HBase (which we've been using for over a year) for our application. So far,
I've had no success getting Cassandra working with MapReduce.
My first step is inserting data into Cassandra. I've created a MapRed job
based u
Hi Gary,
>The main reason is that the compaction operation (removing deleted
>values) currently requires that an entire row be read into memory.
Thank you for your explanation. But I still do not understand what do you
mean.
in my opinion, Actually the row contents must fit in available memory.
thanks
- Reply message -
From: "Charlie Mason"
Date: 周日, 4 月 18, 2010 11:03 下午
Subject: OCM 0.6 Released
To:
Hi All,
This is a just quick post to announce OCM 0.6.0.
This release provides compatibility with Hector 0.6 and therefore
Cassandra 0.6. The API hasn't changed so all you need
Hi All,
This is a just quick post to announce OCM 0.6.0.
This release provides compatibility with Hector 0.6 and therefore
Cassandra 0.6. The API hasn't changed so all you need to do is
recompile your OCM Spec files using the latest version of the compiler
and use the latest version of the Base L
On Sun, Apr 18, 2010 at 8:26 AM, Brandon Williams wrote:
>
> On Sun, Apr 18, 2010 at 8:00 AM, Mason Hale wrote:
>
>> This is a statement I wish I had run across sooner. Our first
>> implementation (which we're changing now) included some very big rows. We
>> ran into trouble with compaction and
On Sun, Apr 18, 2010 at 8:00 AM, Mason Hale wrote:
> This is a statement I wish I had run across sooner. Our first
> implementation (which we're changing now) included some very big rows. We
> ran into trouble with compaction and during hinted hand-off operations
> (which also deals with data a f
sounds like http://wiki.apache.org/cassandra/FAQ#slows_down_after_lotso_inserts
On Sun, Apr 18, 2010 at 3:05 AM, Schubert Zhang wrote:
> Thanks Jonathan and Chris,
>
> I am using 6u19 in above test:
>
> [cassan...@nd1-rack0-cloud cassandra]$ java -version
> java version "1.6.0_19"
> Java(TM) SE R
On Sun, Apr 18, 2010 at 7:41 AM, Gary Dusbabek wrote:
> On Sat, Apr 17, 2010 at 10:50, dir dir wrote:
> >
> > What problems can’t it solve?
> >
> > No flexible indices
> > No querying on non PK values
> > Not good for binary data (>64mb) unless you chunck
> > Row contents must fit in available m
On Sat, Apr 17, 2010 at 10:50, dir dir wrote:
>
> What problems can’t it solve?
>
> No flexible indices
> No querying on non PK values
> Not good for binary data (>64mb) unless you chunck
> Row contents must fit in available memory
>
> Gary Dusbabek say: Row contents must fit in available memory.
Forgive me if I send this email in the wrong place.
When I send email to cassandra mail list, gmail always block me. And who
should I contact for this problem.
This following is the response message:
Delivery to the following recipient failed permanently:
d...@cassandra.apache.org
Technica
Thanks Jonathan and Chris,
I am using 6u19 in above test:
[cassan...@nd1-rack0-cloud cassandra]$ java -version
java version "1.6.0_19"
Java(TM) SE Runtime Environment (build 1.6.0_19-b04)
Java HotSpot(TM) 64-Bit Server VM (build 16.2-b04, mixed mode)
On Sun, Apr 18, 2010 at 12:56 PM, Jonathan E
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