Consistency is no longer query level but now session level in 1.2.0+.
Change the consistency first.
Then issue your select/update/insert query.
Cheers,
Michael
On May 29, 2013, at 7:06 AM, Chandana Tummala chandana.tumm...@wipro.com
wrote:
Hi Team,
I am using datastax cassandra
The best way would be to chunk your binary blobs into 1/2MB chunks.
You could store
Key (md5 of entire blob) = part1, part2, part3 etc
BytesType Validation
Then if you want the entire image just grab the key (md5)..obviously you'll
need a index somewhere with a filename = md5
Best,
Michael
Repair is slow.
On Mar 4, 2013, at 8:07 PM, Matt Kap matvey1...@gmail.com wrote:
I am looking to get a second opinion about disabling hinted-handoffs. I
have an application that can tolerate a fair amount of inconsistency
(advertising domain), and so I'm weighting the pros and cons of hinted
memory usage?
Thanks.
-Wei
Sent from my Samsung smartphone on ATT
Original message
Subject: Re: hinted handoff disabling trade-offs
From: Michael Kjellman mkjell...@barracuda.commailto:mkjell...@barracuda.com
To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user
Dean,
I think if you look back through previous mailing list items you'll find
answers to this already but to summarize:
Tables created prior to 1.2 will continue to work after upgrade. New
tables created are not exposed by the Thrift API. It is up to client
developers to upgrade the client to
When is the last time you did a cleanup on the cf?
On Mar 2, 2013, at 9:48 AM, Víctor Hugo Oliveira Molinar
vhmoli...@gmail.com wrote:
Hello guys.
I'm investigating the reasons of performance degradation for my case scenario
which follows:
- I do have a column family which is filled of
are started(when are only few deleted
columns), the performance looks pretty well.
Unfortunately it is degraded along the day.
On Sat, Mar 2, 2013 at 2:54 PM, Michael Kjellman
mkjell...@barracuda.commailto:mkjell...@barracuda.com wrote:
When is the last time you did a cleanup on the cf?
On Mar 2
lower the min_compaction_threshold for this
column family. Right?
What does realy mean this threeshold value?
Guys, thanks for the help so far.
On Sat, Mar 2, 2013 at 3:42 PM, Michael Kjellman
mkjell...@barracuda.commailto:mkjell...@barracuda.com wrote:
What is your gc_grace set to? Sounds like
No. I've actually found performance is better. Sounds like a timeout somewhere.
On Mar 1, 2013, at 10:18 AM, Hiller, Dean dean.hil...@nrel.gov wrote:
I setup a QA system copying our production system which was accidentally
SimpleSnitch I found out but we are only in one datacenter right now
before I rejoin the
ring?
Quote from Aaron...
In pre 1.2 add these jvm startup params
-Dcassandra.join_ring=false
-Dcassandra.start_rpc=false
Thanks,
Dean
On 2/27/13 12:00 PM, Michael Kjellman mkjell...@barracuda.com wrote:
Yes, it's required between majors. Which your upgrade
There is no overall repair progress currently.
You can use some awk/grep hackery to try and figure it out from the logs. (This
works best for a cleanup, less so for a repair because ranges are skipped and
merkel trees take a long time to compare/generate/validate)
Remember, things might be
this.
https://github.com/apache/cassandra/blob/trunk/CHANGES.txt
https://issues.apache.org/jira/browse/CASSANDRA-4767
Alain
2013/2/28 Michael Kjellman
mkjell...@barracuda.commailto:mkjell...@barracuda.com
There is no overall repair progress currently.
You can use some awk/grep
Is your goal to rebuild a cf from scratch?
On Feb 28, 2013, at 11:24 AM, Hiller, Dean dean.hil...@nrel.gov wrote:
Title says it all. Anyone know?
Thanks,
Dean
Copy, by Barracuda, helps you store, protect, and share all your amazing
things. Start today: www.copy.com.
Yes, it's required between majors. Which your upgrade would be.
On 2/27/13 10:54 AM, Hiller, Dean dean.hil...@nrel.gov wrote:
My script to upgrade our first node in QA is thus (basically, snapshot,
drain, stop, then switch over then start)Š
#!/bin/bash
export NODE=$1
export VERSION=1.1.4
How big will each mutation be roughly? 1MB, 5MB, 16MB?
On 2/25/13 3:32 PM, Chris Dean ctd...@sokitomi.com wrote:
I've been away from Cassandra for a while and wondered what the
consensus is on using 1.2.2 as a primary data store?
Our app has a typical OLTP workload but we have high availability
an issue with network in
your DC
Netflix actually has support for chunking binary blobs in Astyanax.
I'd say you'll be fine if you plan to have 1MB mutations and only 1-2TB of
total load across your cluster.
On 2/25/13 3:37 PM, Chris Dean ctd...@sokitomi.com wrote:
Michael Kjellman mkjell
This was a bug with 1.2.0 but resolved in 1.2.1. Did you take a capture of
nodetool gossipinfo and nodetool ring by chance?
On Feb 23, 2013, at 12:26 AM, Arya Goudarzi gouda...@gmail.com wrote:
Hi C* users,
I just upgrade a 12 node test cluster from 1.1.6 to 1.2.1. What I noticed
from
Yes, this is a thrift error returned by C*. You can use Data::Dumper to grab
what's in that hash ref to see if there are more clues. Throw your object in an
eval{} block and then print Dumper($@)
If you file a bug on github I can work with you there more so we don't bother
everyone on the
Couldn't you just disable thrift and leave gossip active?
On 2/22/13 9:01 AM, Hiller, Dean dean.hil...@nrel.gov wrote:
We would like to take a node out of the ring and upgradesstables while it
is not doing any writes nor reads with the ring. Is this possible?
I am thinking from the
Just to add though- compactionstats on an upgradesstables will only show the
currently running sstable being upgraded. Overall progress on a upgradesstables
isn't exposed anywhere yet but you can figure out how much there is to go thru
the log lines.
From: aaron morton
No, this is a really really bad idea and C* was not designed for this, in fact,
it was designed so you don't need to have a large expensive SAN.
Don't be tempted by the shiny expensive SAN. :)
If money is no object instead throw SSD's in your nodes and run 10G between
racks
From: Kanwar
would be the drawbacks :)
From: Michael Kjellman [mailto:mkjell...@barracuda.com]
Sent: 21 February 2013 17:12
To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
Subject: Re: Cassandra with SAN
No, this is a really really bad idea and C* was not designed for this, in fact
http://www.miraclelinux.com/jp/online-service/labs/pdf/zabbix-write-performance
is a recent one that comes to mind
But that was just write performance..
If you are really doing a case study you might want to do it yourself, in which
case you can use the stress tool distributed with Cassandra
This is very normal (unfortunately). Are you doing a repair –pr or a straight
up repair?
Does nodetool netstats show anything? I frequently see repair hang in 1.2.1,
and I haven't been able to figure out why yet though. Feel free to take a stack
dump with jstack on the node doing the repair
There is this:
http://www.datastax.com/dev/blog/whats-new-in-cassandra-1-1-flexible-data-file-placement
But you'll need to design your data model around the fact that this is only as
granular as 1 column family
Best,
michael
From: Kanwar Sangha kan...@mavenir.commailto:kan...@mavenir.com
Please see the Mailing Lists section of the home page.
http://cassandra.apache.org
user-unsubscr...@cassandra.apache.org
From: James Wong jwong...@gmail.commailto:jwong...@gmail.com
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
Why do you feel that link is unprofessional? Just wondering. I actually quite
like the abbreviation personally.
On Feb 17, 2013, at 1:37 PM, Boris Solovyov
boris.solov...@gmail.commailto:boris.solov...@gmail.com wrote:
Thanks. I don't know if anyone cares my opinion, but as a newcomer to the
That bug is kinda wrong though. 1.0.x is current for like a year now and C*
works great with it :)
On Feb 15, 2013, at 7:38 PM, Dave Brosius
dbros...@mebigfatguy.commailto:dbros...@mebigfatguy.com wrote:
see https://issues.apache.org/jira/browse/CASSANDRA-5201
On 02/15/2013 10:05 PM, Yang
Sorry. I meant to say even though there *wasnt* a major change between 1.0.x
and 0.22. The big change was 0.20 to 0.22. Sorry for the confusion.
On Feb 15, 2013, at 9:53 PM, Michael Kjellman
mkjell...@barracuda.commailto:mkjell...@barracuda.com wrote:
There were pretty big changes in Hadoop
I'm confused what you are looking to do.
CQL3 syntax (SELECT * FROM keyspace.cf WHERE user = 'cooldude') has
nothing to do with thrift client calls (such as multiget_slice)
What is your goal here?
Best,
michael
On 2/14/13 5:57 PM, Drew Kutcharian d...@venarc.com wrote:
Hi Guys,
What's the
Sigh. Google please
On Feb 8, 2013, at 11:00 AM, Rudy Jahchan r...@carbonfive.com wrote:
--
Rudy Jahchan
You need to move the node to the new token you would like. Take care to only do
one move operation at a time in the ring and also do a repair –pr and cleanup
after the move operation.
See nodetool move for more information
Best,
michael
From: S C as...@outlook.commailto:as...@outlook.com
Not sure why you would need to do that...And regardless you will need to move
the data to change the tokens.
On Feb 8, 2013, at 7:01 PM, S C as...@outlook.commailto:as...@outlook.com
wrote:
I have a scenario where I have to swap the tokens of the two nodes in a three
node cluster.
Thanks,
SC
It's a really great library and definitely recommended by me and many who are
reading this.
And if you are just starting out on 1.2.1 with C* you might also want to
evaluate https://github.com/datastax/java-driver and the new binary protocol.
Best,
michael
From: Cassa L
There have been tons of threads/convos on this.
In the early days of Java 7 it was pretty unstable and there was pretty much no
convincing reason to use Java 7 over Java 6.
Now that Java 7 has stabilized and Java 6 is EOL it's a reasonable decision to
use Java 7 and we do it in production with
Are you using execute_cql3_query() ?
On Jan 30, 2013, at 7:31 AM, Oleksandr Petrov oleksandr.pet...@gmail.com
wrote:
Hi,
I'm creating a table via cql3 query like:
CREATE TABLE posts (
userid text,
blog_name text,
entry_title text,
posted_at text,
PRIMARY KEY (userid,
, Michael Kjellman
mkjell...@barracuda.commailto:mkjell...@barracuda.com wrote:
Are you using execute_cql3_query() ?
On Jan 30, 2013, at 7:31 AM, Oleksandr Petrov
oleksandr.pet...@gmail.commailto:oleksandr.pet...@gmail.com wrote:
Hi,
I'm creating a table via cql3 query like:
CREATE TABLE posts
* allows to query everything that is greater than 3foo.getBytes(), but
* not 3foo.getBytes() itself.
*/
Or am I missing the fact that you are inserting with cql3 as well?
From: Michael Kjellman mkjell...@barracuda.commailto:mkjell...@barracuda.com
Reply-To: user@cassandra.apache.orgmailto:user
Pretty sure you are looking for something like:
// thrift input job settings
ConfigHelper.setInputRpcPort(job.getConfiguration(), 9160);
ConfigHelper.setInputInitialAddress(job.getConfiguration(), 127.0.0.1);
ConfigHelper.setInputPartitioner(job.getConfiguration(), RandomPartitioner);
// thrift
Do get started look at:
HintedHandoff: http://wiki.apache.org/cassandra/HintedHandoff
Operations: http://wiki.apache.org/cassandra/Operations (specifically repair
and repair –pr operations)
There should be a ton of information on this you can easily Google.
Best,
Michael
From: dong.yajun
How often do you need to do this? How many rows in your column families?
If it's not a frequent operation you can just page the data n number of rows at
a time using nothing special but C* and a driver.
Or another option is you can write a map/reduce job if you need an entire cf to
be an input
is to purge the bombstones, another option is using the map/reduce job
to do the purging things without major compactions.
Best
Rick.
On Wed, Jan 30, 2013 at 1:15 PM, Michael Kjellman
mkjell...@barracuda.commailto:mkjell...@barracuda.com wrote:
How often do you need to do this? How many rows
from Datastax:
http://www.datastax.com/docs/1.1/cluster_architecture/hadoop_integration
From: Michael Kjellman mkjell...@barracuda.commailto:mkjell...@barracuda.com
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Date
What is your gc_grace set to?
Are your findings before or after this time after the deletion?
From: Kasun Weranga kas...@wso2.commailto:kas...@wso2.com
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Date: Saturday,
More nodes!
On Jan 25, 2013, at 7:21 AM, Alain RODRIGUEZ
arodr...@gmail.commailto:arodr...@gmail.com wrote:
fwiw, I have a mixed ubuntu 11.10 / 12.04 6 node cluster (AWS m1.xlarge).
The load average is always between 0 and 5 for 11.10 nodes while 12.04 nodes
shows all the time a load between
http://wiki.apache.org/cassandra/ArchitectureInternals
From: Radek Gruchalski
radek.gruchal...@portico.iomailto:radek.gruchal...@portico.io
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Date: Tuesday, January 22,
https://issues.apache.org/jira/browse/CASSANDRA-4813
Fixed in 1.2.0
Best,
michael
From: chandra Varahala
hadoopandcassan...@gmail.commailto:hadoopandcassan...@gmail.com
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
chandra
On Thu, Jan 17, 2013 at 1:50 PM, Michael Kjellman
mkjell...@barracuda.commailto:mkjell...@barracuda.com wrote:
https://issues.apache.org/jira/browse/CASSANDRA-4813
Fixed in 1.2.0
Best,
michael
From: chandra Varahala
hadoopandcassan...@gmail.commailto:hadoopandcassan...@gmail.com
Reply
upgradesstables is safe, but it is essentially compaction (because sstables are
immutable it rewrites the sstable in the new format) so you'll want to do it
when traffic is low to avoid IO issues.
upgradesstables always needs to be done between majors. While 1.1.2 - 1.1.8 is
not a major, due
Writing to the list user@cassandra.apache.org
Subscription addressuser-subscr...@cassandra.apache.org
Digest subscription address user-digest-subscr...@cassandra.apache.org
Unsubscription addressesuser-unsubscr...@cassandra.apache.org
Getting help with the list
Brisk is pretty much stagnant. I think someone forked it to work with 1.0
but not sure how that is going. You'll need to pay for DSE to get CFS
(which is essentially Brisk) if you want to use any modern version of C*.
Best,
Michael
On 1/16/13 11:17 AM, cscetbon@orange.com
https://issues.apache.org/jira/browse/CASSANDRA-4916
Fixed for 1.2.1!
From: Tim Dunphy bluethu...@gmail.commailto:bluethu...@gmail.com
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Date: Saturday, January 12, 2013
There is no migration path from RandomPartitioner to Murmur3
On Jan 11, 2013, at 11:12 AM, Tim Dunphy
bluethu...@gmail.commailto:bluethu...@gmail.com wrote:
Hello,
Will I have to recreate my schema in order to use the Murmur3Partitioner ?
Thanks
Tim
--
GPG me!!
gpg --keyserver
I've seen this with OpenJDK 7.
Grab Java 7 u10 from Oracle and you should be good to go.
From: Alain RODRIGUEZ arodr...@gmail.commailto:arodr...@gmail.com
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Date:
I found that overall Hadoop input/output from Cassandra could use a little more
QA and input from the community. (Especially with large datasets). There were
some serious BOF bugs in 1.1 that have been resolved in 1.2. (Yay!) But, the
problems in 1.1 weren't immediately apparent. Testing in my
ElasticSearch is a nice option for ordered lists. In 2.0 triggers would fit
updates to elastic search much easier as right now it's in your application
logic to detect changes and update.
On Jan 9, 2013, at 7:55 AM,
stephen.m.thomp...@wellsfargo.commailto:stephen.m.thomp...@wellsfargo.com
I think Arron meant /var/lib/cassandra (by default)
Check there (unless you changed you data directories in your cassandra.yaml)
On Jan 9, 2013, at 7:36 PM, Tim Dunphy
bluethu...@gmail.commailto:bluethu...@gmail.com wrote:
Hello,
And thanks for your reply! Well so far it's just a single node.
I thought this was to load between separate clusters not to upgrade within the
same cluster. No?
On Jan 8, 2013, at 11:29 AM, Rob Coli rc...@palominodb.com wrote:
On Tue, Jan 8, 2013 at 8:41 AM, Todd Nine todd.n...@gmail.com wrote:
I have recently been trying to restore backups from a v1.0.x
Size tiered or leveled compaction?
From: Brian Tarbox tar...@cabotresearch.commailto:tar...@cabotresearch.com
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Date: Monday, January 7, 2013 12:03 PM
To:
) insert once, ready
many, update-never.
Brian
On Mon, Jan 7, 2013 at 3:13 PM, Michael Kjellman
mkjell...@barracuda.commailto:mkjell...@barracuda.com wrote:
Size tiered or leveled compaction?
From: Brian Tarbox tar...@cabotresearch.commailto:tar...@cabotresearch.com
Reply-To: user
in detail.
Thanks.
Brain
On Mon, Jan 7, 2013 at 4:13 PM, Michael Kjellman
mkjell...@barracuda.commailto:mkjell...@barracuda.com wrote:
http://www.datastax.com/dev/blog/when-to-use-leveled-compaction
If you perform at least twice as many reads as you do writes, leveled
compaction may actually save
I know one outstanding issue is that CQL3 created column families won't be
listed as CQL3 column families aren't exposed by the old thrift calls.
I know work is in progress to fix this...
On Jan 6, 2013, at 8:01 PM, aaron morton
aa...@thelastpickle.commailto:aa...@thelastpickle.com wrote:
I'm
http://www.mail-archive.com/user@cassandra.apache.org/msg26528.html
From: Alain RODRIGUEZ arodr...@gmail.commailto:arodr...@gmail.com
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Date: Friday, January 4, 2013 6:00
Murmur3 != MD5 (RandomPartitioner)
From: Dwight Smith
dwight.sm...@genesyslab.commailto:dwight.sm...@genesyslab.com
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Date: Friday, January 4, 2013 8:36 AM
To:
token method supported?
If so – how should these be generated, the token-generator seems to only apply
to RandomPartitioner.
Thanks again
From: Michael Kjellman [mailto:mkjell...@barracuda.com]
Sent: Friday, January 04, 2013 8:39 AM
To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
Use linux ;)
More seriously, I'm wondering if it is binding to the IPV6 address? Is that
enabled on that NIC? You could try disabling IPv6 and seeing if RPC binds
correctly..
From:
stephen.m.thomp...@wellsfargo.commailto:stephen.m.thomp...@wellsfargo.com
I'm having huge upgrade issues from 1.1.7 - 1.2.0 atm but in a 12 node cluster
which I am slowly massaging into a good state I haven't seen this in 15+ hours
of operation…
This looks related to JNA?
From: Alain RODRIGUEZ arodr...@gmail.commailto:arodr...@gmail.com
Reply-To:
?
Does it ? The only thing logged about JNA is the following : JNA mlockall
successful.
What does this line *** java.lang.instrument ASSERTION FAILED ***:
!errorOutstanding with message transform method call failed at
../../../src/share/instrument/JPLISAgent.c line: 806 means?
2013/1/3 Michael
I've found that if you drop a column family, the data is still
there/snapshotted. If you recreate the column family as expected the data will
repopulate the cf.
From: Charles Lamanna char...@metricshub.commailto:char...@metricshub.com
Reply-To:
This was asked as recently as one month + 1 day btw:
http://grokbase.com/t/cassandra/user/12bve4d8e8/java-high-level-client if you
weren't subscribed to the group to see the messages to see a longer discussion.
From: Baskar Sikkayan techba...@gmail.commailto:techba...@gmail.com
Reply-To:
You could make a column family for each period of time and then drop the column
family when you want to destroy it. Before you drop it you could use the
sstabletojson converter and write the json files out to tape.
Might make your life difficult however if you need an input split for map
a secondary index for that, I would assume.
From: Michael Kjellman [mailto:mkjell...@barracuda.com]
Sent: Tuesday, December 18, 2012 11:15 AM
To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
Subject: Re: Partition maintenance
You could make a column family for each period of time
netstat + cron is your friend at this point in time
On Dec 18, 2012, at 8:25 PM, aaron morton
aa...@thelastpickle.commailto:aa...@thelastpickle.com wrote:
AFAIK the count connections is not exposed.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
:54 AM, Sylvain Lebresne sylv...@datastax.com
wrote:
On Sat, Dec 15, 2012 at 7:12 PM, Michael Kjellman mkjell...@barracuda.com
wrote:
What issues have you ran into? Actually curious because we push 1.1.5-7
really hard and have no issues whatsoever.
A related question is which which
What issues have you ran into? Actually curious because we push 1.1.5-7
really hard and have no issues whatsoever.
On Dec 15, 2012, at 7:51 AM, Brian Tarbox
tar...@cabotresearch.commailto:tar...@cabotresearch.com wrote:
We've reverted all machines back to Java 6 after running into numerous
Works just fine for us.
On 12/13/12 11:43 AM, Drew Kutcharian d...@venarc.com wrote:
Hey Guys,
With Java 6 begin EOL-ed soon
(https://blogs.oracle.com/java/entry/end_of_public_updates_for), what's
the status of Cassandra's Java 7 support? Anyone using it in production?
Any outstanding *known*
ranges around to migrate to vnodes.
Richard.
On 11 December 2012 08:47, Michael Kjellman
mkjell...@barracuda.commailto:mkjell...@barracuda.com wrote:
So I'm wondering if anyone has given thought to their migration path to Vnodes.
Other than having a separate cluster and migrating the data from
+1
On Dec 6, 2012, at 10:06 PM, Wei Zhu wz1...@yahoo.com wrote:
I think Aaron meant 300-400GB instead of 300-400MB.
Thanks.
-Wei
- Original Message -
From: Wade L Poziombka wade.l.poziom...@intel.com
To: user@cassandra.apache.org
Sent: Thursday, December 6, 2012 6:53:53 AM
I know there is very little insight currently into long running JMX operations
but has anyone figured out any way clever to determine approximate progress on
cleanup operations? Merci.
Best,
Michael
'Like' us on Facebook for exclusive content and other resources on all
Barracuda Networks
operation, so you would estimate in terms of how long it would take to go
through all of those.
On Nov 29, 2012, at 10:37 AM, Michael Kjellman mkjell...@barracuda.com
wrote:
I know there is very little insight currently into long running JMX
operations but has anyone figured out any way clever
that to the number of total sstables in
your data dir for that cf for a rough percentage of sstables that have
been processed.
Thoughts?
On 11/29/12 10:36 AM, Michael Kjellman mkjell...@barracuda.com wrote:
compactionstats does not show the overall progress it has made on cleanup
operations
-level client
+1
On Tue, Nov 27, 2012 at 10:10 AM, Michael Kjellman
mkjell...@barracuda.commailto:mkjell...@barracuda.com wrote:
Netflix has a great client
https://github.com/Netflix/astyanax
'Like' us on Facebook for exclusive content and other resources on all
Barracuda Networks
at 2:51 PM, Michael Kjellman
mkjell...@barracuda.commailto:mkjell...@barracuda.com wrote:
Lots of example code, nice api, good performance as the first things that come
to mind why I like Astyanax better than Hector
From: Andrey Ilinykh ailin...@gmail.commailto:ailin...@gmail.com
Reply-To: user
Netflix has a great client
https://github.com/Netflix/astyanax
On 11/27/12 7:40 AM, Peter Lin wool...@gmail.com wrote:
I use hector-client master, which is pretty stable right now.
It uses the latest thrift, so you can use hector with thrift 0.9.0.
That's assuming you don't mind using the
*because
*which
*be
*with
Please see:
http://en.wikipedia.org/wiki/Codd's_12_rules
http://wiki.apache.org/cassandra/DataModel
That should get you going for your school report. If you have more
specific questions about terms on the wiki please feel free to ask.
On 11/27/12 4:02 AM,
Are you writing with QUORUM consistency or ONE?
On 11/27/12 9:52 AM, Sergey Olefir solf.li...@gmail.com wrote:
Hi Juan,
thanks for your input!
In my case, however, I doubt this is the case -- clients are able to push
many more updates than I need to saturate replication_factor=2 case (e.g.
I'm
Some people (myself included) have seen issues when upgrading from 1.1.2
to 1.1.6 with tombstoned rows in the HintsColumnFamily
Some (mysql included) have fixed this by doing a
nodetool scrub system HintsColumnFamily
-mike
On 11/24/12 7:37 AM, Chuan-Heng Hsiao hsiao.chuanh...@gmail.com wrote:
Sorry, auto correct changed 'myself' to 'mysql'. Sorry for the confusion...
On Nov 24, 2012, at 9:29 AM, Michael Kjellman mkjell...@barracuda.com wrote:
Some people (myself included) have seen issues when upgrading from 1.1.2
to 1.1.6 with tombstoned rows in the HintsColumnFamily
Some
While this might not be helpful (I don't have all the thread history here),
have you checked that all your servers are properly synced with NTP?
From: Everton Lima peitin.inu...@gmail.commailto:peitin.inu...@gmail.com
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
Ohh lala. Any documentation yet?
On Nov 10, 2012, at 6:27 PM, Edward Capriolo
edlinuxg...@gmail.commailto:edlinuxg...@gmail.com wrote:
just a note for all. The default partitioner is no longer randompartitioner. It
is now murmur, and the token range starts in negative numbers. So you don't
Rule of thumb is to try to keep nodes under 400GB.
Compactions/Repairs/Move operations etc become a nightmare otherwise. How
much data do you expect to have on each node? Also depends on caches,
bloom filters etc
On 11/5/12 8:57 AM, Oleg Dulin oleg.du...@gmail.com wrote:
I have 4 nodes at my
Should be fine if one node can deal with your read and write load.
Switching from SimpleStrategy to RackAware can be a pain. That¹s a
potential growth point way down the line (if you ever have your nodes on
different switches). You might want to just setup your keyspace as
RackAware if you intend
Unless you have Brisk (however as far as I know there was one fork that got it
working on 1.0 but nothing for 1.1 and is not being actively maintained by
Datastax) or go with CFS (which comes with DSE) you are not guaranteed all data
is on that hadoop node. You can take a look at the forks if
DataStax Entreprise service...
On Thu, Oct 18, 2012 at 3:00 PM, Michael Kjellman
mkjell...@barracuda.com wrote:
Unless you have Brisk (however as far as I know there was one fork that
got it working on 1.0 but nothing for 1.1 and is not being actively
maintained by Datastax) or go with CFS (which
.
On 10/18/12 1:15 PM, Andrey Ilinykh ailin...@gmail.com wrote:
On Thu, Oct 18, 2012 at 12:00 PM, Michael Kjellman
mkjell...@barracuda.com wrote:
Unless you have Brisk (however as far as I know there was one fork that
got
it working on 1.0 but nothing for 1.1 and is not being actively
maintained
.
If you don't specify a CL in your job config it will default to ONE (at
least that's what my read of the ConfigHelper source for 1.1.6 shows)
On 10/18/12 1:29 PM, Andrey Ilinykh ailin...@gmail.com wrote:
On Thu, Oct 18, 2012 at 1:24 PM, Michael Kjellman
mkjell...@barracuda.com wrote:
Well
I'm getting EOFExceptions with BulkOutputFormat
2012-10-17 12:23:01,182 ERROR
org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor: Error in
ThreadPoolExecutor
java.lang.RuntimeException: java.io.EOFException
at org.apache.cassandra.utils.FBUtilities.unchecked(FBUtilities.java:628)
at
Apologies - looks like this is already being tracked in
https://issues.apache.org/jira/browse/CASSANDRA-4813
From: Michael Kjellman mkjell...@barracuda.commailto:mkjell...@barracuda.com
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user
When we started with Cassandra almost 2 years ago in production originally it
was for the sole purpose storing blobs in a redundant way. I ignored the
warnings as my own tests showed it would be okay (and two years later it is
ok). If you plan on using Cassandra later (as we now as as features
Correct.
Also, there is a new feature in 1.1+ that lets you play with live traffic
on new nodes before they actually join the ring
http://www.datastax.com/dev/blog/whats-new-in-cassandra-1-1-live-traffic-sa
mpling
On 10/16/12 9:42 AM, Andrey Ilinykh ailin...@gmail.com wrote:
No. The
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