Re: [RELEASE CANDIDATE] Apache Cassandra 1.0.0-rc1 released

Congrats. Is there a target date for the release. If not is it likely to be in October? Le 27 sept. 2011 18:57, "Sylvain Lebresne" a écrit : > The Cassandra team is pleased to announce the release of the first release > candidate for the future Apache Cassandra 1.0. > > The warnings first: this i

Assertion error in AntiEntropyService.rendezvous()

Hello, Have just ran into a new assertion error, again after upgrading a 2 month-old cluster to 0.8.6 Can someone explain what this means and the possible consequences ? Thanks ERROR [AntiEntropyStage:2] 2011-09-27 06:07:41,960 AbstractCassandraDaemon.java (line 139) Fatal exception in thread Thre

Re: unable to start as a service on Ubuntu server

> "Ramesh" =3D=3D Ramesh S writes: Ramesh> Hello all, We installed Cassandra on our development Ramesh> server , which is a fresh Ubuntu server running only Ramesh> Cassandra. We followed all the instructions on this Ramesh> link=C2=A0and when we want to start the server

Re: frequent node UP/Down?

it looks the new conns are created by the sending side (OutboundTCPconnection.java), when it detects a IOException on write(), since these timeouts happen rather frequently, about 10 -- 20 times per hour, I wonder really it's due to network in EC2, and really would like some ways to ascertain that

Re: frequent node UP/Down?

ITC threads are started as soon as the other party connects. On Tue, Sep 27, 2011 at 9:22 PM, Yang wrote: > found the reason. > > the IncomingTCPConnection.run() hit an exception and the thread > terminated. the next incarnation of the thread did not come up until > 20 seconds later, which caused

Re: is Cassandra-494 fixed.

More like "distant future if ever." On Tue, Sep 27, 2011 at 8:37 PM, Boris Yen wrote: > Does "later" mean it is going to be supported soon, like at version 1.x? > Regards > Boris > On Tue, Sep 27, 2011 at 8:57 PM, Jonathan Ellis wrote: >> >> The key here is "Resolution: Later" >> >> On Tue, Sep

Re: frequent node UP/Down?

found the reason. the IncomingTCPConnection.run() hit an exception and the thread terminated. the next incarnation of the thread did not come up until 20 seconds later, which caused the TimedOutException and UNavalableException to clients. WARN [Thread-28] 2011-09-28 02:17:57,561 IncomingTcpCo

Re: is Cassandra-494 fixed.

Does "later" mean it is going to be supported soon, like at version 1.x? Regards Boris On Tue, Sep 27, 2011 at 8:57 PM, Jonathan Ellis wrote: > The key here is "Resolution: Later" > > On Tue, Sep 27, 2011 at 3:48 AM, Boris Yen wrote: > > Hi, > > I was wondering if this ticket has been taken ca

Re: unable to start as a service on Ubuntu server

Thank you Aaron for pointing me to the logs. On Tue, Sep 27, 2011 at 7:23 PM, aaron morton wrote: > You can check the /var/log/cassandra/output.log (stdout / err from the > process) and /var/log/cassandra/system.log to diagnose start problems. > > A > > - > Aaron Morton > Freelanc

Re: unable to start as a service on Ubuntu server

You can check the /var/log/cassandra/output.log (stdout / err from the process) and /var/log/cassandra/system.log to diagnose start problems. A - Aaron Morton Freelance Cassandra Developer @aaronmorton http://www.thelastpickle.com On 28/09/2011, at 12:34 PM, Ramesh S wrote: >

Re: Removal of old data files

Short Answer: Cassandra will actively delete files when it needs to make space. Otherwise they will be deleted "some time later". Unless you are getting out of disk space errors it's not normally something to worry about. Longer: The TTL guarantee is "do not return this data to get req

Re: unable to start as a service on Ubuntu server

On IRC channel, I was told that 'service' clears the environment variables. Just in case , some one might be having the same problem. Use - cassandra start instead of service cassandra start. ** Please correct me if this is incorrect or if this is because server is wrongly configured. On Tue,

Re: unable to start as a service on Ubuntu server

Thanks Konstantin. I checked the services, but it doesn't show up for some reason. Even trying to connect locally or remotely using a CLI client, returned Exception connecting to xx.xx.xx.xx/9160. Reason: Connection refused. But I tried sudo cassandra start and it worked like a charm. I am surpris

Re: unable to start as a service on Ubuntu server

Yes, they start Cassandra as a daemon in the background. It is running. You can connect to it from the CLI or any other client. You can see what it is doing by reading the logs. cassandra -f starts Cassandra in the foreground, that is why it does not return a prompt when the server starts.

RE: Removal of old data files

Now, we use TTL of 12 hours and GC grace period of 8 hours for encouraging Cassandra to remove old data/files more aggressively. Cassandra do remove fair amount of old data files. Cassandra tends to removed 4 out of every 5 files. I notice it because data file has a sequence number as a part

unable to start as a service on Ubuntu server

> > Hello all, > > We installed Cassandra on our development server , which is a fresh Ubuntu > server running only Cassandra. > We followed all the instructions on this > link and > when we want to start the server as a service by issuing

RE: SCF column comparator

Helps a lot Arron thanks for your time :) Sam From: aa...@thelastpickle.com Subject: Re: SCF column comparator Date: Tue, 27 Sep 2011 10:03:21 +1300 To: user@cassandra.apache.org it's the other way around… row-key:super-column: (sub)column: When using Create Column Family in

Re: Surgecon Meetup?

So it sounds like there are about a half dozen of us, some coming Wednesday, others Thursday. I'll have some Cassandra eye logos out around lunch both of those days. If that herds us together then success! If not I'll try something more formal. Looking forward to meeting everyone. On 09/25/201

[RELEASE CANDIDATE] Apache Cassandra 1.0.0-rc1 released

The Cassandra team is pleased to announce the release of the first release candidate for the future Apache Cassandra 1.0. The warnings first: this is *not* the final release and hence should not be considered ready for production use just yet. However, unless major regression are found in the test

Re: anyway to disable row/key cache on single node while starting it?

> again I was doing repair on single CF and it crashed because of OOM, > leaving 286GB data(should be 40GB).   the problem here is it take very very > long to make the node back to alive,   seems because of it was loading  row > cache.  the last time I encountered this, I did people suggested t

Re: anyway to throttle nodetool repair?

> I saw the ticket about compaction throttling, just wonder is that necessary > to add an option or is there anyway to do repair throttling? > every time I run nodetool repair, it uses all disk io and the server load > goes up quickly, just wonder is there anyway to make it smoother. The validatin

RE: invalid column name length 0

No, brand new, started from scratch, no data at all. My setup get into trouble after a couple of hours since it then starts giving the Dead/up messages. I also get messages like '11 MUTATION messages dropped in server lifetime' Later on I got this type of exception also. -Original Message---

Re: invalid column name length 0

Is this upgraded from an earlier version? On Tue, Sep 27, 2011 at 8:51 AM, Desimpel, Ignace wrote: > Version 0.8.6. > > After an extreme load to 4 (embedded) cassandra servers with replication > factor 3 ( Ubuntu 10.4, dual six core, 64 bit, no swap, 1 15000 rpm > commitlog disk, 1 15000 rpm data

Re: Tool for SQL -> Cassandra data movement

Hi, Instead of passing it as command line argument, I am storing all of this configuration in config/config.xml. My earlier version was command line, but than as arguments increased I shifted to config.xml. Plus I thought providing all credentials at command line is also not a good idea. Sample C

Re: Bulk uploader issue on multi-node cluster

Hi, I had set below config on SSTable instance (127.0.0.2). auto_bootstrap: false seeds: "172.27.15.2" (lab02) rpc_address: 127.0.0.2 listen_address: 127.0.0.2 rpc_port: 9160 storage_port: 7000 #ifconfig lo:2  Link encap:Local Loopback    inet addr:127.0.0.2  Mask:255.0.0.0

Re: Tool for SQL -> Cassandra data movement

> I have cleaned up my code that imports CSV into Cassandra and I have put it open on https://github.com/nehalmehta/CSV2Cassandra. Have a look if it is useful to you. Hello, I will remake this tool into something which is like Oracle SQL*Loader. Basically, you will pass controlfile as command

invalid column name length 0

Version 0.8.6. After an extreme load to 4 (embedded) cassandra servers with replication factor 3 ( Ubuntu 10.4, dual six core, 64 bit, no swap, 1 15000 rpm commitlog disk, 1 15000 rpm datafile disk, ) I get a fatal exception as listed below. No more messages were found after that. Probably ot

Re: is Cassandra-494 fixed.

The key here is "Resolution: Later" On Tue, Sep 27, 2011 at 3:48 AM, Boris Yen wrote: > Hi, > I was wondering if this ticket has been taken care of. It is marked as > resolved, but I saw "None" for the "fix version". Can anyone shed some > lights on this? > Regards > Boris -- Jonathan Ellis P

Re: is Cassandra-494 fixed.

Sorry, you cannot use a slice range for a delete. Cheers - Aaron Morton Freelance Cassandra Developer @aaronmorton http://www.thelastpickle.com On 27/09/2011, at 9:48 PM, Boris Yen wrote: > Hi, > > I was wondering if this ticket has been taken care of. It is marked as > resol

anyway to throttle nodetool repair?

I saw the ticket about compaction throttling, just wonder is that necessary to add an option or is there anyway to do repair throttling? every time I run nodetool repair, it uses all disk io and the server load goes up quickly, just wonder is there anyway to make it smoother.

anyway to disable row/key cache on single node while starting it?

again I was doing repair on single CF and it crashed because of OOM, leaving 286GB data(should be 40GB). the problem here is it take very very long to make the node back to alive, seems because of it was loading row cache. the last time I encountered this, I did people suggested that dele

is Cassandra-494 fixed.

Hi, I was wondering if this ticket has been taken care of. It is marked as resolved, but I saw "None" for the "fix version". Can anyone shed some lights on this? Regards Boris