Hi All,
I have an issue where each one of my nodes (currently all running at 1.1.5) is
reporting around 30,000 pending compactions. I understand that a pending
compaction doesn't necessarily mean it is a scheduled task however I'm confused
why this behavior is occurring. It is the same on all
for the numbers to start to rise ?
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 18/09/2012, at 7:39 AM, Michael Kjellman
mkjell...@barracuda.commailto:mkjell...@barracuda.com wrote:
Hi All,
I have an issue where each one of my nodes (currently all
:
What Compaction Strategy are you using ?
Are there any errors in the logs ?
If you restart a node how long does it take for the numbers to start to rise ?
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 18/09/2012, at 7:39 AM, Michael Kjellman
(over
100K in single directory) and a lot of thinking for compaction executor to
decide what to compact next. I can see numbers like 5K-10K and still thing this
is high number. If I were you, I'd increase sstable_size_in_mb 10-20 times it
is now.
2012/9/17 Michael Kjellman
mkjell
be potentially
stopping compactions? Will compactions still happen if there are different
versions of the schema?
On 9/18/12 11:38 AM, Michael Kjellman mkjell...@barracuda.com wrote:
Thanks, I just modified the schema on the worse offending column family
(as determined by the .json) from 10MB
If I were you I would look into ElasticSearch unless you are okay updating the
search cache very infrequently.
I tried Solandra vs ElasticSearch in our use case and there was no contest.
Also, Cassandra is great for writes but not as optimized for reads. Honestly,
it all depends on your use
Sounds like you are loosing your system keyspace. When you say nothing
important changed between yaml files do you mean with or without your changes?
Did your data directories change in the migration? Permissions okay?
I've done a 1.1.1 to 1.1.5 upgrade on many of my nodes without issue..
On
If I recall correctly you should make those changes in the schema through the
CLI.
I never ended up running Solandra in production though so I'm not sure if
anyone else has better options. Why is the CLI not enough?
On Sep 19, 2012, at 5:56 AM, Safdar Kureishy
Client code. CQL will only deserialize composites as you mention in A.
On Sep 19, 2012, at 5:01 AM, Roshni Rajagopal
roshni_rajago...@hotmail.commailto:roshni_rajago...@hotmail.com wrote:
Hi,
There was a conversation on this some time earlier, and to continue it
Suppose I want to associate a
ring restart was necessary. This
was on Cass 1.1.1.
Cheers,
Edward
On 12-09-19 08:12 AM, Michael Kjellman wrote:
Sounds like you are loosing your system keyspace. When you say nothing
important changed between yaml files do you mean with or without your changes?
Did your data directories change
A few questions: what version of 1.1 are you running. What version of Hadoop?
What is your job config? What is the buffer size you've chosen? How much data
are you dealing with?
On Sep 19, 2012, at 7:23 PM, Manu Zhang owenzhang1...@gmail.com wrote:
I've been bulk loading data into Cassandra
://www.datastax.com/dev/blog/bulk-loading#comment-127019; buffer size is 64
MB as in the example; I'm dealing with about 1GB data. job config, you mean?
On Thu, Sep 20, 2012 at 10:32 AM, Michael Kjellman
mkjell...@barracuda.commailto:mkjell...@barracuda.com wrote:
A few questions: what version
SSTables to level0.
Best regards, Vitalii Tymchyshyn
2012/9/19 Michael Kjellman
mkjell...@barracuda.commailto:mkjell...@barracuda.com
Potentially the pending compactions are a symptom and not the root
cause/problem.
When updating a 3rd column family with a larger sstable_size_in_mb it
looks like
+1. Would be a pretty cool feature
Right now I write once to cassandra and once to kafka.
On 9/20/12 4:13 PM, Data Craftsman 木匠 database.crafts...@gmail.com
wrote:
This will be a good new feature. I guess the development team don't
have time on this yet. ;)
On Thu, Sep 20, 2012 at 1:29 PM,
Ended up switching the biggest offending column families back to size tiered
compaction and pending compactions across the cluster dropped to 0 very quickly.
On Sep 19, 2012, at 10:55 PM, Michael Kjellman mkjell...@barracuda.com
wrote:
After changing my ss_table_size as recommended my pending
Brisk is no longer actively developed by the original author or Datastax. It
was left up for the community.
https://github.com/steeve/brisk
Has a fork that is supposedly compatible with 1.0 API
Your more than welcome to fork that and make it work with 1.1 :)
DSE != (Cassandra + Brisk)
From:
From their wiki: The replication is an incremental one way process
involving two databases (a source and a destination).
The aim of the replication is that at the end of the process, all active
documents on the source database are also in the destination database and
all documents that were
Hi- A few months back I wrote a Perl client for Cassandra and I realized I
never sent it out to this list. While I realize that while Perl is not the
language du jour hopefully this will help someone else out. :) Code is
periodically thrown up on CPAN but look at
I had a similar bug with 1.1.5 but I couldn't reproduce it so I didn't file a
bug. I did a rolling restart of my nodes and things went back to normal.
From: Manu Zhang owenzhang1...@gmail.commailto:owenzhang1...@gmail.com
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
And to clarify my reply, this was a loop in compactions on
system-schema_columns specifically.
From: Michael Kjellman mkjell...@barracuda.commailto:mkjell...@barracuda.com
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user
Sylvain - Getting a 404 still. I assume this is due to a delay in syncing
out to Apache content mirrors?
On 10/15/12 9:46 AM, Sylvain Lebresne sylv...@datastax.com wrote:
The Cassandra team is pleased to announce the release of Apache Cassandra
version 1.1.6.
Cassandra is a highly scalable
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
advantage vs. storing each file in one row….well
at least from my understanding so read performance should be really
really good in that case.
Dean
From: Michael Kjellman
mkjell...@barracuda.commailto:mkjell...@barracuda.com
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user
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
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
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
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
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
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
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
-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
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
+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
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
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*
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
: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
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
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:
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
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 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
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 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
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'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
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
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
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-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
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,
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
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,
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
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,
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, 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
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
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
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
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
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
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
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
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
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
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