--DRS
>
>> On Oct 11, 2013, at 6:55 AM, Edward Capriolo wrote:
>>
>> Stick sandra on the end. Restsandra.
>>
>>> On Friday, October 11, 2013, Ran Tavory wrote:
>>> Seems like the greeks are all used out, how about moving the the japanes
Seems like the greeks are all used out, how about moving the the japanese
mythology? it's a brand new pool of names...
http://en.wikipedia.org/wiki/Japanese_mythology
On Fri, Oct 11, 2013 at 8:29 AM, Blair Zajac wrote:
> On 10/10/2013 10:28 PM, Blair Zajac wrote:
>
>> On 10/10/2013 08:53 PM, S
Update: I've reverted hinted_handoff_enabled back to its default value of
true and the errors stopped. Is this just a coincidence, or could be
related?
On Sun, Oct 6, 2013 at 7:23 PM, Ran Tavory wrote:
> Pardon me, now with the appropriate subject line...
>
> Hi, I have a sm
Hi all, when using the java-driver I see this error on the client, for
reads (as well as for writes).
Many of the ops succeed, however I do see a significant amount of errors.
com.datastax.driver.core.exceptions.WriteTimeoutException: Cassandra
timeout during write query at consistency ONE (1 repl
Pardon me, now with the appropriate subject line...
Hi, I have a small cluster of 1.2.6 and after some config changes I started
seeing errors int the logs.
Not sure that's related, but the changes I performed were to disable hinted
handoff and disable auto snapshot. I'll try to reverte these, see
Hi, I have a small cluster of 1.2.6 and after some config changes I started
seeing errors int the logs.
Not sure that's related, but the changes I performed were to disable hinted
handoff and disable auto snapshot. I'll try to reverte these, see if the
picture changes.
But anyway, that seems like
Try adding this to the end of the URL: ?template=identity
On Thu, Feb 3, 2011 at 4:23 PM, Chris Burroughs
wrote:
> On 02/02/2011 01:41 PM, Ryan King wrote:
> > On Wed, Feb 2, 2011 at 10:40 AM, Chris Burroughs
> > wrote:
> >> I'm using 0.7.0 and experimenting with the new mx4j support.
> >>
> >>
Java
On Jan 14, 2011 8:25 PM, "Ertio Lew" wrote:
> what is the technology stack do you use?
>
> On 1/14/11, Ran Tavory wrote:
>> I use Hector, if that counts. ..
>> On Jan 14, 2011 7:25 PM, "Ertio Lew" wrote:
>>> Hey,
>>>
>>>
I use Hector, if that counts. ..
On Jan 14, 2011 7:25 PM, "Ertio Lew" wrote:
> Hey,
>
> If you have a site in production environment or considering so, what
> is the client that you use to interact with Cassandra. I know that
> there are several clients available out there according to the
> lang
Stephen, just FYI cassandra cannot be stopped cleanly. It's jvm must
be taken down. So the plugin would need to probably fork a jvm and
kill it when it's done.
On Thursday, January 6, 2011, B. Todd Burruss wrote:
>
>
>
>
>
>
> would u like some testers? we were about to write one.
>
> On
nough that they were dropping messages
> older than RPC_TIMEOUT to cope, it could lose part of the bootstrap
> communication permanently.
>
> On Wed, Jan 5, 2011 at 10:01 AM, Ran Tavory wrote:
>> OK, thanks, so I see we had the same problem (I too had multiple keyspace,
>> not t
e problem (Don't know
> if you have to redeploy your cluster though)
>
> http://www.mail-archive.com/user@cassandra.apache.org/msg07106.html
>
>
>
> On Wed, Jan 5, 2011 at 4:29 PM, Ran Tavory wrote:
>
>> @Thibaut wrong email? Or how's "Avoid dropping messages of
ve to use at least 0.6.7
>
>
>
> On Wed, Jan 5, 2011 at 4:19 PM, Edward Capriolo wrote:
>
>> On Wed, Jan 5, 2011 at 10:05 AM, Ran Tavory wrote:
>> > In storage-conf I see this comment [1] from which I understand that the
>> > recommended way to bootstrap a new node is
me, seed list should be the same
>> across the cluster.
>> I'm just thinking of other things to try, non-boostrapped nodes should
>> join the ring instantly but reads will fail if you aren't using quorum.
>>
>>
>> On Wed, Jan 5, 2011 at 8:51 AM, Ran Tavory w
I haven't tried repair. Should I?
On Jan 5, 2011 3:48 PM, "Jake Luciani" wrote:
> Have you tried not bootstrapping but setting the token and manually
calling
> repair?
>
> On Wed, Jan 5, 2011 at 7:07 AM, Ran Tavory wrote:
>
>> My conclusion is lame: I tri
in their list of seeds - always did - and
> everything works. (You may ask why I did this. I don't know, I must have
> copied it from an example somewhere.)
>
> On Wed, Jan 5, 2011 at 9:42 AM, Ran Tavory wrote:
>
>> I was able to make the node join the ring but I'm
but if I do it in two phases it did work.
So it's either my misunderstanding or a bug...
On Wed, Jan 5, 2011 at 7:14 AM, Ran Tavory wrote:
> The new node does not see itself as part of the ring, it sees all others
> but itself, so from that perspective the view is consistent.
> The
lhost streams
> Mode: Bootstrapping
> Not sending any streams.
> Not receiving any streams.
On Wed, Jan 5, 2011 at 1:20 AM, Nate McCall wrote:
> Does the new node have itself in the list of seeds per chance? This
> could cause some issues if so.
>
> On Tue, Jan 4, 2011 at
now if you think there is.
Or any other advice...
On Tuesday, January 4, 2011, Ran Tavory wrote:
> Thanks Jake, but unfortunately the streams directory is empty so I don't
> think that any of the nodes is anti-compacting data right now or had been in
> the past 5 hours. It seems th
to monitor the anti-compaction
> progress (it puts new SSTables for bootstrapping node in there)
>
>
> On Tue, Jan 4, 2011 at 8:01 AM, Ran Tavory wrote:
>
>> Running nodetool decommission didn't help. Actually the node refused to
>> decommission itself (b/c it wasn't pa
ter it
had finished moving the data nothing happened for a long time (I'm still
waiting, but nothing seems to be happening).
Any hints how to analyze a "stuck" bootstrapping node??
thanks
On Tue, Jan 4, 2011 at 1:51 PM, Ran Tavory wrote:
> Thanks Shimi, so indeed anticompaction
the other nodes logs to see if there is any node doing
> anticompaction.
> I don't remember how much data I had in the cluster when I needed to
> add/remove nodes. I do remember that it took a few hours.
>
> The node will join the ring only when it will finish the bootstrap.
>
&g
I asked the same question on the IRC but no luck there, everyone's asleep
;)...
Using 0.6.6 I'm adding a new node to the cluster.
It starts out fine but then gets stuck on the bootstrapping state for too
long. More than an hour and still counting.
$ bin/nodetool -p 9004 -h localhost streams
> Mod
Use 0.6.0-19
On Friday, December 31, 2010, Zhidong She wrote:
> Hi guys,
>
> We are trying Cassandra 0.6.8, and could you please kindly tell me which
> Hector Java client is suitable for 0.6.8?
> The Hector 0.7.0 says it's for Cassandra 0.7.X, and shall we use Hector 0.6.0?
>
> Thanks,
> Br
> Zh
an oversight as well. as you can imagine, non of us is a fan of super
columns...
On Tue, Dec 28, 2010 at 6:28 AM, Roshan Dawrani wrote:
> Hi,
>
> I think I may have found another oversight on the Hector API.
>
> OrderedRows has a convenient peekLast() method, but it is missing in
> OrderedSuperRo
Roshan, in cassandra.yaml did you define compare_subcolumns_with for the
SCF?
The subcolumn names are the timeuuid, not the subcolumn values, right?
On Sun, Dec 26, 2010 at 9:14 AM, Roshan Dawrani wrote:
> Hi,
>
> I have a super ColumnFamily that has a few super columns, with each having
> a gro
are with the earlier jmx-to-rest bridge listed in the
> operations page:
> "JMX-to-REST bridge available
> at http://code.google.com/p/polarrose-jmx-rest-bridge";
>
> ThanksDave Viner
>
>
> On Sun, Dec 19, 2010 at 7:01 AM, Ran Tavory wrote:
> FYI, I just add
FYI, I just added an mx4j section to the bottom of this page
http://wiki.apache.org/cassandra/Operations
On Sun, Dec 19, 2010 at 4:30 PM, Jonathan Ellis wrote:
> mx4j? https://issues.apache.org/jira/browse/CASSANDRA-1068
>
>
> On Sun, Dec 19, 2010 at 8:36 AM, Peter Schuller <
> peter.schul...@i
This should be the case, yes, semantics isn't affected by the
connection and state isn't kept. What might happen if you read/write
with low consistency levels then when you hit a different host on the
ring it might have an inconsistent state in case of partition.
On Sunday, December 12, 2010, shim
> On Thu, Dec 9, 2010 at 11:35 AM, Ran Tavory wrote:
> > there are two numbers to look at, N the numbers of hosts in the ring
> > (cluster) and R the number of replicas for each data item. R is
> configurable
> > per column family.
> > Typically for large clusters N >
there are two numbers to look at, N the numbers of hosts in the ring
(cluster) and R the number of replicas for each data item. R is configurable
per column family.
Typically for large clusters N >> R. For very small clusters if makes sense
for R to be close to N in which case cassandra is useful s
to me it makes sense that if hinted handoff is off then cassandra cannot
satisfy 2 out of every 3rd writes writes when one of the nodes is down since
this node is the designated node of 2/3 writes.
But I don't remember reading this somewhere. Does hinted handoff affect
David's situation?
(David, di
u...@cass to bcc
Indeed, the KeyspaceOperator isn't thread safe. (and in recent revisions it
was extracted to an interface at
http://github.com/rantav/hector/blob/master/src/main/java/me/prettyprint/hector/api/Keyspace.javaand
implementation at
http://github.com/rantav/hector/blob/master/src/main/
http://cassandra-il.eventbrite.com/
Hi all, I'm organizing a users meetup in Israel, if you happen to be around
you're most welcome to join.
Event Details:
The first Cassandra users meetup in Israel will take place at outbrain,
Natanya on Tuesday Nov 16th 4pm.
Please register and get yourself a
it's not official yet, in voting now.
On Tue, Oct 12, 2010 at 8:41 PM, marinko pasic wrote:
> Hi there,
> I'm just wandering is the Cassandra 0.6.6 release, which I found on:
>
> http://people.apache.org/~eevans/
>
> is an official release? If it is not, can you tell me where I can find
> offici
Peter, you're my JVM GC hero!
Thank you!
On Tue, Oct 12, 2010 at 12:38 AM, Peter Schuller <
peter.schul...@infidyne.com> wrote:
> > My motivation was that since I don't have too much data (10G each node)
> then
> > why don't I cache the hell out of it, so I started with a cache size of
> 100%
> >
Thanks Peter, Robert and Brandon.
So it seems that the only suspect by now is my excessive caching ;)
I'll get a better look at the GC activity next time shit starts to happen,
but in the mean time, as for the cache size (cassandra's internal cache),
it's row cache capacity is set to 10,000,000. I
Courtney this certainly sounds interesting and as Nate suggested we're
always looking for valuable contributions.
A few things to keep in mind:
- I'm curious, as Lucas has asked - is it possible to create an
efficient graph API over cassandra and what are the tradeoffs?
- If the API is general enou
awesome, thanks, I'm subscribed :)
On Mon, Aug 30, 2010 at 10:05 PM, Jeremy Hanna
wrote:
> There has been a new mailing list created for those who are working on
> Cassandra clients above thrift and/or avro. You can subscribe by sending an
> email to client-dev-subscr...@cassandra.apache.org or
did you try connecting to a real cassandra instance, not an embedded one?
I use an embedded one for testing and it works, but just to narrow down your
problem.
On Fri, Aug 27, 2010 at 6:13 PM, Ruben de Laat wrote:
> Hi,
>
> I am new to cassandra, so maybe I am missing something obvious...
> Vers
I haven't benchmarked so it's purely theoretical.
If there's no caching then I'm pretty sure just writing would yield better
performance.
If you do cache rows/keys it really depends on your hit ratio. Naturally if
you have a small data set and high cache ratio and use row caching I'm
pretty sure it
an also come up with scenarios where you'd
> > rather have it read-only than completely dead.
> >
> > On Wed, Aug 11, 2010 at 12:38 PM, Ran Tavory wrote:
> >> Due to administrative error one of the hosts in the cluster lost
> permission
> >> to write to
orm generated by
> TokenFactory.toString and fromString. You should not be generating
> them yourself.
>
> On Wed, Aug 18, 2010 at 7:56 AM, Ran Tavory wrote:
> > I'm a bit confused WRT KeyRange's tokens in 0.7.0
> > When making a range query you can either use KeyR
I'm a bit confused WRT KeyRange's tokens in 0.7.0
When making a range query you can either use KeyRange.key or KeyRange.token.
In 0.7.0 key was typed as byte[]. tokens remain strings.
What does this string represent in case of a RP and in case of an OPP? Did
this change in 0.7.0?
AFAIK in 0.6.0 if
[cross posting to u...@cass and hector-use...@googlegroups]
Happy to announce hector's support in 0.7.0. Hector is a java client for
cassandra which wraps the low level thrift interface with a nicer API, adds
monitoring, connection pooling and more.
I didn't do anything... The amazing 0.7.0 work w
The common practice is to connect to a few hosts and send request in round
robin or other lb tactic. The hosts are symmetric so any host will do.
There are also higher lever libraries that help with that as well as
connection pooling and other goodies
On Mon, Aug 16, 2010 at 1:14 PM, Ying Tang wr
Due to administrative error one of the hosts in the cluster lost permission
to write to it's data directory.
So I started seeing errors in the log, however, the server continued serving
traffic. It wasn't able to compact and do other write operations but it
didn't crash.
I was wondering wether that
reported https://issues.apache.org/jira/browse/CASSANDRA-1359
On Wed, Aug 4, 2010 at 9:51 PM, Jonathan Ellis wrote:
> That's definitely a bug.
>
> On Wed, Aug 4, 2010 at 2:13 PM, Ran Tavory wrote:
> > ok, so I don't send writes to bootstrapping or decommissioned node
that aren't part of the ring. Cassandra
> rejecting requests when you do is a "feature."
>
> On Wed, Aug 4, 2010 at 6:52 AM, Ran Tavory wrote:
> > Is this a known issue?
> > Running 0.6.2 I moved a node to different token and eventually saw errors
> in
> &g
Is this a known issue?
Running 0.6.2 I moved a node to different token and eventually saw errors in
the log.
ERROR [ROW-READ-STAGE:116804] 2010-08-04 06:34:29,699
DebuggableThreadPoolExecutor.java (line 101) Error in ThreadPoolExecutor
java.lang.RuntimeException: Cannot service reads while bootst
cassandra doesn't compress before storing, no.
It may be beneficial to compress, depending on the size of your data,
network latency, disk size and data compressability... You'll need to test.
I sometimes compress, depending on data size but it's done in the client,
On Mon, Jul 26, 2010 at 1:31 PM
n
>> underneath. In some cases, the microseconds are generated simply as
>> milliseconds * 1000, which doesn't actually fix any sequencing bugs.
>>
>> On Sat, Jul 24, 2010 at 3:46 PM, Ran Tavory wrote:
>> > Hi Oleg, I didn't follow up the entire thread,
Hi Oleg, I didn't follow up the entire thread, but just to let you know that
the 0.6.* version of the CLI uses microsec as the time unit for timestamps.
Hector also uses micros to match that, however, previous versions of hector
(as well as the CLI) used milliseconds, not micro.
So if you're using
On Mon, Jul 19, 2010 at 10:43 PM, Peter Schuller <
peter.schul...@infidyne.com> wrote:
> > I'm using CL=QUORUM (=Hector default) for both reads and writes. Most of
> the
> > times, the test passes, but sometimes it fails because I get back the old
> > value. Since the test is single-threaded, I gu
if your test case is correct then it sounds like a bug to me. With one node,
unless you're writing with CL=0 you should get full consistency.
On Mon, Jul 19, 2010 at 10:14 PM, Hugo wrote:
> Hi,
>
> Being fairly new to Cassandra I have a question on the eventual
> consistency. I'm currently perfo
a dependency on your library. J
Dop
*From:* Ran Tavory [mailto:ran...@gmail.com]
*Sent:* Wednesday, July 14, 2010 6:36 AM
*To:* user@cassandra.apache.org
*Subject:* Re: Using Pelops with Cassandra 0.7.X
Hector doesn't have 0.7 support yet
>
> On Jul 14, 2010 1:34 AM, "Peter Harrison"
e you doing
> this? Thanks.
>
>
> On Fri, Jul 9, 2010 at 10:33 PM, Ran Tavory wrote:
>
>> The workaround I do is fork always. Each test pulls up its own jvm.
>>
>> On Jul 9, 2010 9:51 PM, "Jonathan Ellis" wrote:
>>
>> there's some support
Hector doesn't have 0.7 support yet
On Jul 14, 2010 1:34 AM, "Peter Harrison" wrote:
I know Cassandra 0.7 isn't released yet, but I was wondering if anyone
has used Pelops with the latest builds of Cassandra? I'm having some
issues, but I wanted to make sure that somebody else isn't working on
a
Since you're using hector hector-users@ is a good place to be, so
u...@cassandra to bcc
operateWithFailover is one stop before sending the request over the network
and waiting, so it makes lots of sense that a significant part of the
application is spent in it.
On Tue, Jul 13, 2010 at 6:22 PM, Sa
The workaround I do is fork always. Each test pulls up its own jvm.
On Jul 9, 2010 9:51 PM, "Jonathan Ellis" wrote:
there's some support for this in 0.7 (see
http://issues.apache.org/jira/browse/CASSANDRA-1018) but fundamentally
it's not really designed to be started and stopped multiple times
w
Just found this site and thought it might be interesting to folks on this
list.
http://scale.metaoptimize.com/
It's a stack-overflow style qna site, in their words:
> A community interested in scalability, high availability, data stores,
> NoSQL, distributed computing, parallel computing, cloud co
ttransport exception usually happens when the server cannot respond or
there's a network error.
Can you send more context to from your code?
More context from the exception?
Is the insertion rate about the same in the thrift or hector versions? If
insertion with hector is faster than thrift (conne
com/rantav/hector/downloads)
>
> On Sat, Jun 26, 2010 at 11:42 PM, Ran Tavory wrote:
>
>> these classes are from a newer version and they should not exist in
>> version 14.
>>
>>
>> On Fri, Jun 25, 2010 at 3:42 PM, Gavan Hood wrote:
>>
>>&g
d one of the released versions then lmk
>> if I forgot to include one dependency or another...
>>
>>>
>>> I noticed a file IterateOverKeysOnly.java on the site too, but that has
>>> some issues, some undefined KeySpace entries and other syntax errors.
>>
maven
> > repository. I've manually added the nonpublic artifacts to the cache
> which
> > makes life a great deal simpler. See http://archiva.apache.org/
> > Regards,
> > --Jools
> >
> > On 24 June 2010 07:36, Ran Tavory wrote:
> >>
> >> He
fined KeySpace entries and other syntax errors.
>
It was contributed by another developer so I don't know.
>
> Gavan
> On Thu, Jun 24, 2010 at 10:18 PM, Ran Tavory wrote:
>
>> Here's what we have for hector:
>>
>> wiki: http://wiki.github.com/rantav/hector/
Here's what we have for hector:
wiki: http://wiki.github.com/rantav/hector/
blog posts: http://prettyprint.me/2010/02/23/hector-a-java-cassandra-client/
http://prettyprint.me/2010/03/03/load-balancing-and-improved-failover-in-hector/
http://prettyprint.me/2010/04/03/jmx-in-hector/
Examples:
Exa
Hector has a pom.xml which and deals with its dependencies as gracefully as
it can, but the problem is that hector's dependencies such as cassandra and
libthrift aren't in public maven repos. Any suggestions how to deal with
that?
On Thu, Jun 24, 2010 at 6:00 AM, Kenneth Bartholet <
kennethbartho
of tests for each API call, do you have some
> code that will help me build that. If my code ends up useful I intend to
> publish it on my website for others to use.
>
> Regards
> Gavan
>
> On Thu, Jun 24, 2010 at 4:43 AM, Ran Tavory wrote:
>
>> As the developer of
As the developer of hector I can only speak in favor of my child of love and
I haven't tried pelops so take the following with a grain of salt...
Hector sees wide adoption and has been coined the de-facto java client. It's
been in use in production critical systems since version 0.5.0 by a few
comp
There isn't an online javadoc page, but the code is online and well
documented and there's a wiki and all sorts of documents and examples
http://github.com/rantav/hector/blob/master/src/main/java/me/prettyprint/cassandra/service/Keyspace.java
http://wiki.github.com/rantav/hector/
On Wed, Jun 23, 2
I don't have the answer but if you provide jmap output, cfstats output that
may help.
Are you using mmap files?
Do you see swap? Gc in the logs?
On Jun 20, 2010 7:25 PM, "James Golick" wrote:
As I alluded to in another post, we just moved from 2-4 nodes. Since then,
the cluster has been incredib
it will be immediate.
But it will fail if not all hosts in the cluster are up, this is the
tradeoff. We regard the truncate operation an admin api so I think it's a
fair tradeoff.
On Fri, Jun 18, 2010 at 11:50 PM, Phil Stanhope wrote:
> In 0.6.x the iterating approach works ... but you need to f
+ user, - dev (bcc actually)
If you use a random partitioner use the following InitialToken for your
nodes:
$ bc
bc 1.06
Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc.
This is free software with ABSOLUTELY NO WARRANTY.
For details type `warranty'.
(2^127)/3
*5671372782015641
On Thu, Jun 17, 2010 at 9:09 PM, F. Hugo Zwaal wrote:
> Hi,
>
> Being fairly new to Cassandra I have a couple of questions:
>
> 1) Is there a way to remove multiple keys/rows in one operation (batch) or
> must keys be removed one by one?
>
yes, batch_mutate
> 2) I see API references to version 0
I can offer Hector which I've authored and maintain with the help of a few
other folks
http://wiki.github.com/rantav/hector/
http://github.com/rantav/hector
Feel free to post questions to our mailing list
http://groups.google.com/group/hector-users
On Thu, Jun 17, 2010 at 10:04 AM, Anthony Ikeda
On Thu, Jun 17, 2010 at 8:52 AM, Mubarak Seyed wrote:
> Hi All,
>
> Regarding client thrift connection, i have 4 nodes which formed a ring, but
> client only knows the IP address of an one node (and thrift RPC port
> number),
> how does client can connect to any one other node without getting rin
no, it's not atomic. it just shortens the roundtrip of many update requests.
Some may fail and some may succeed
On Mon, Jun 14, 2010 at 2:40 PM, Per Olesen wrote:
> Can I expect batch_mutate to work in what I would think of as an atomic
> operation?
>
> That either all the mutations in the batch
Nice going, Dominic, having a clear API for cassandra is a big step forward
:)
Interestingly, at hector we came up with similar approach, just didn't find
the time for code that, as production systems keep me busy at nights as
well... We started with the implementation of BatchMutation, but the res
Gary fwiw I get oom with Cl one quite commonly if I'm not careful with my
writes
On Jun 11, 2010 8:48 PM, "Jonathan Ellis" wrote:
We give you enough rope to hang yourself. Don't use ZERO if that's
not what you want. :)
On Fri, Jun 11, 2010 at 9:23 AM, William Ashley wrote:
> Would it be reas
I can't say exactly how much memory is the correct amount, but surely 1G is
very little.
By replicating 3 times your cluster now makes 3 times more work than it used
to do, both on reads and on writes while the readers/writers continue
hammering it the same pace.
So once you've upped your memory (
ansport, create a client, make
some cassandra operations and then close the transport.
On Wed, Jun 9, 2010 at 10:35 PM, Steven Haar wrote:
> C#
>
>
> On Wed, Jun 9, 2010 at 2:34 PM, Ran Tavory wrote:
>
>> Some languages have higher level clients that might help you. What
>>
Some languages have higher level clients that might help you. What language
are you using?
On Jun 9, 2010 9:01 PM, "Steven Haar" wrote:
What is the best way to pass a Cassandra client as a parameter? If you pass
it as a parameter, do you also have to pass the transport in order to be
able to clo
to have two copies you need RF=2.
RF=0 doesn't make sense as far as I understand it.
On Mon, Jun 7, 2010 at 2:16 PM, Per Olesen wrote:
> Hi,
>
> I am unclear about what the ReplicationFactor value means.
>
> Does RF=1 mean that there is only one single node that has the data in the
> cluster (ac
s
>> some level of atomic operations or locking, since updates are
>> multi-step operations. From server side I guess it would be similar to
>> work on allowing atomic multi-part operations (like ones being worked
>> on to implement counters?).
>>
>> -+ Tatu +
sounds interesting... btree on top of cassandra ;)
On Sun, Jun 6, 2010 at 12:16 PM, David Boxenhorn wrote:
> I'm still thinking about the problem of how to handle range queries on very
> large sets of data, using Random Partitioning.
>
> Has anyone used tree search to solve this? What do you thi
Cassandra expects a config file and does not expose an alternative API, for
this file, that's correct.
I think it's not hard to add such API but so far the demand for it didn't
exist.
On Jun 4, 2010 8:01 PM, "Sten Roger Sandvik" wrote:
2010/6/4 Jonathan Ellis
>
> look at o.a.c.service.Embedd
as far as I know, only the os level limitations, e.g. typically ~60k
On Thu, Jun 3, 2010 at 9:34 AM, Lev Stesin wrote:
> Hi,
>
> Is there a limit on the number of client connections to a node? Thanks.
>
> --
> Lev
>
15 AM, Jonathan Ellis wrote:
> Then the next step is to check StorageService.getRangeToEndpointMap via jmx
>
> On Tue, Jun 1, 2010 at 11:56 AM, Ran Tavory wrote:
> > I'm using RackAwareStrategy. But it still doesn't make sense I think...
> > let's see what di
the same DC).
On Tue, Jun 1, 2010 at 4:00 PM, Jonathan Ellis wrote:
> I'm saying that .99 is getting a copy of all the data for which .124
> is the primary. (If you are using RackUnawarePartitioner. If you are
> using RackAware it is some other node.)
>
> On Tue, Jun 1, 2010 at
lis wrote:
> well, there you are then.
>
> On Mon, May 31, 2010 at 2:34 PM, Ran Tavory wrote:
> > yes, replication factor = 2
> >
> > On Mon, May 31, 2010 at 10:07 PM, Jonathan Ellis
> wrote:
> >>
> >> you have replication factor > 1 ?
> >>
&g
yes, replication factor = 2
On Mon, May 31, 2010 at 10:07 PM, Jonathan Ellis wrote:
> you have replication factor > 1 ?
>
> On Mon, May 31, 2010 at 7:23 AM, Ran Tavory wrote:
> > I hope I understand nodetool cleanup correctly - it should clean up all
> data
> > that
attempt to deliver existing ones unless you manually
> delete the hint files in the system/ dir.
>
> On Mon, May 31, 2010 at 6:04 AM, Ran Tavory wrote:
> > In 0.6.2 I disabled hinted handoff, however tpstats and cfstats report
> seems
> > odd.
> > On all servers in t
t.
> ...
> Here, we defined a constant, GCGraceSeconds, and had each node track
> tombstone age locally. Once it has aged past the constant, it can be GC'd.
> ===
>
>
>
> On 31.05.2010 16:23, Ran Tavory wrote:
>
>> I hope I understand nodetool cleanup correctly -
I hope I understand nodetool cleanup correctly - it should clean up all data
that does not (currently) belong to this node. If so, I think it might not
be working correctly.
Look at nodes 192.168.252.124 and 192.168.252.99 below
192.168.252.99Up 279.35 MB 35446079887597756610768188274
In 0.6.2 I disabled hinted handoff, however tpstats and cfstats report seems
odd.
On all servers in the cluster I have:
false
tpstats reports 5 completed handoffs.
$ nodetool -h cass25 -p 9004 tpstats
Pool NameActive Pending Completed
FILEUTILS-DELETE-POOL
1. nodetool flush
2. stop server
3. delete all files (data, index, filter)
4. start server
note that this will delete the data, not the CF definition (not like "drop
table" in sql-ish).
system_drop_column_family will drop the CF definition
truncate (available from 0.7) will delete the data, whic
> It sure sounds like you're seeing the "my row cache contains the
> entire hot data set, so the key cache only gets the cold reads"
> effect.
>
> On Wed, May 26, 2010 at 2:54 PM, Ran Tavory wrote:
> > If I disable row cache the numbers look good - key cache
On Tue, May 25, 2010 at 3:43 PM, Jonathan Ellis wrote:
> What happens if you disable row cache?
>
> On Tue, May 25, 2010 at 4:53 AM, Ran Tavory wrote:
> > It seems there's an error reporting the Key cache hit rate. The value is
> > always 0.0 and I have a feeling it
The summary of your question is: is batch_mutate atomic in the general
sense, meaning when used with multiple keys, multiple column families etc,
correct?
On Wed, May 26, 2010 at 12:45 PM, Todd Nine wrote:
> Hey guys,
> I originally asked this on the Hector group, but no one was sure of the
>
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