Hi Team,
i am facing an issue, with updating the data with same time stamp.
The column values with string type which multiple fields are delimited with
|, example (1|2|3|4|5|6|).
if i chage one of the field, some times its updating properly with same
time stamp (column internal clock). however
Hi Team,
i am facing an issue, with updating the data with same time stamp.
The column values with string type which multiple fields are delimited
with |, example (1|2|3|4|5|6|).
if i chage one of the field, some times its updating properly with same
time stamp (column internal clock).
Hi,
On AWS, we had a 2 node cluster with RF 2.
We added 2 more nodes, then changed RF to 3 on all our keyspaces.
Next step was to run nodetool repair, node by node.
(In the meantime, we found that we must use CL quorum, which is affecting
our application's performance).
Started with node 1,
Finally I got it working...
Below are the code snippet which will be useful for trigger users,
public CollectionRowMutation augment(ByteBuffer key, ColumnFamily cf) {
try {
ByteBuffer id_bb = CompositeType.extractComponent(key, 0);
UUID
Hi,
The internal timestamp is used when you try to read a row. Cassandra checks
all the versions of the same row and returns the one with the most recent
timestamp. If you make many writes (updates) of the same row with the same
timestamp and then read it, Cassandra is not going to be able to
Hi,
I have requirement to setup multiple nodes to the existing single node
Cassandra cluster. I am new to Cassandra and I don't have idea whether do I
need to setup multiple nodes in a single machine by copying Cassandra
configuration or do I require separate physical machines to create
You can try https://github.com/pcmanus/ccm
2013/12/2 Santosh Shet santosh.s...@vista-one-solutions.com
Hi,
I have requirement to setup multiple nodes to the existing single node
Cassandra cluster. I am new to Cassandra and I don’t have idea whether do I
need to setup multiple nodes in
Hello Team,
I have cassandra cluster with 5 nodes with 1 replication factor initially.
Now i changed to replication factor 3 and ran nodetool repair.
Is there way i can verify that i have 3 replicas ?
Thanks
Chandra
On Fri, Nov 29, 2013 at 6:36 PM, Anthony Grasso anthony.gra...@gmail.comwrote:
In this case would it be possible to do the following to replace a seed
node?
With the quoted procedure, you are essentially just changing the ip
address of a node, which will work as long as you set
Hi all,
When I try to create a new table, I get the following error:
cqlsh:userdata CREATE TABLE f6f5e6a90a90a7ebb69d84a3d6f807 (item_id uuid
PRIMARY KEY);
TSocket read 0 bytes
This error means nothing to me, so I check the logs that were created and I get
the error, ‘Cannot modify index
On Thu, Nov 28, 2013 at 8:47 AM, Nate McCall n...@thelastpickle.com wrote:
I can reproduce this with the mx4j lib loaded by setting to max hint
window to 'empty':
max_hint_window_in_ms:
I guess you could call this a bug, but given that it has 2 defaults, you
have to explicitly set this to
On Mon, Dec 2, 2013 at 11:51 AM, Charlie Andrews
charlieandrews@gmail.com wrote:
Has anyone ever seen this behavior before?
No.
What version of Cassandra? Easiest fix is probably to dump-and-reload
schema.
=Rob
I am on version 2.0.2. Do you have any resources on how to dump and reload the
schema?
On Dec 2, 2013, at 2:52 PM, Robert Coli rc...@eventbrite.com wrote:
On Mon, Dec 2, 2013 at 11:51 AM, Charlie Andrews
charlieandrews@gmail.com wrote:
Has anyone ever seen this behavior before?
No.
On Thu, Nov 28, 2013 at 7:21 PM, Robert Wille rwi...@fold3.com wrote:
So here’s my question. If Cassandra only compacts one table at a time,
then I should be safe if I keep as much free space as there is data in the
largest table. If Cassandra can compact multiple tables simultaneously,
then
On Mon, Dec 2, 2013 at 11:54 AM, Charlie Andrews
charlieandrews@gmail.com wrote:
I am on version 2.0.2. Do you have any resources on how to dump and reload
the schema?
I guess I should write a blog post on this guy, but the rough outline is :
1) echo DESCRIBE KEYSPACE keyspace_name; |
Maybe a stupid question, but doesn’t dropping a keyspace drop all data? Or is
the keyspace schema separate from the data it describes?
-Charlie
On Dec 2, 2013, at 3:10 PM, Robert Coli rc...@eventbrite.com wrote:
On Mon, Dec 2, 2013 at 11:54 AM, Charlie Andrews
charlieandrews@gmail.com
On Mon, Dec 2, 2013 at 12:14 PM, Charlie Andrews
charlieandrews@gmail.com wrote:
Maybe a stupid question, but doesn’t dropping a keyspace drop all data? Or
is the keyspace schema separate from the data it describes?
Lol, sorry, yes. You will have to restore the data from the
Just out of curiosity, what do you think occurred to cause this problem? I
thought it was quite strange that I didn’t get a useable error since my
experience with this project has always been pretty helpful errors.
Thanks,
Charlie
On Dec 2, 2013, at 3:20 PM, Robert Coli rc...@eventbrite.com
On Mon, Dec 2, 2013 at 12:24 PM, Charlie Andrews
charlieandrews@gmail.com wrote:
Just out of curiosity, what do you think occurred to cause this problem? I
thought it was quite strange that I didn’t get a useable error since my
experience with this project has always been pretty helpful
On Fri, Nov 29, 2013 at 4:11 PM, Josh Dzielak j...@keen.io wrote:
Having an issue with sstable2json. It appears to hang when I run it
against an SSTable that's part of a keyspace with authentication turned on.
Running it against any other keyspace works, and as far as I can tell the
only
We're making several changes and I'd to confirm that our order of making
them is reasonable. Right now we have 4 node system at replicationFactor=2
running 1.1.6.
We've moving to a 6 node system at rf=3 running 1.2.12 (I guess).
We think the order should be:
1) change to rf=3 and run repair on
Hello,
I am trying to install and setup Cassandra on Fedora. So far I have
successfully installed it using Yum by following the startup guide:
http://www.datastax.com/documentation/cassandra/1.2/webhelp/index.html#cassandra/install/installRHEL_t.html
My problem is that when I run bin/cqlsh,
Hey Folks,
I have been using ccm for some time and it's pretty awesome tool to test
out admin stuff. Now, I really want to test modeling data by trying to
access ccm running cassandra using Thrift based pycassaShell client from
remote hosts (not locally). My setup is like this:
Lets say, private
You could probably use one of these
nodetool getendpoints keyspace cf key - Print the end points that
owns the key
using cqlsh and desc keyspace;
/Jason
On Tue, Dec 3, 2013 at 12:16 AM, chandra Varahala
hadoopandcassan...@gmail.com wrote:
Hello Team,
I have cassandra cluster with 5
Check if you have the cqlshlib installed? For debian, it is located
at /usr/share/pyshared/cqlshlib
/Jason
On Tue, Dec 3, 2013 at 5:42 AM, Ritchie Iu r...@ixl.com wrote:
Hello,
I am trying to install and setup Cassandra on Fedora. So far I have
successfully installed it using Yum by
We are running a 6-node AWS EC2 (m1.large) cluster of cassandra 1.2.9
across three availability zones with Ec2Snitch and NetworkTopologyStrategy.
One of our nodes was apparently sharing a physical box with another
customer who was really hogging the IO. So we needed to bring the node up
on a new
On Mon, Dec 2, 2013 at 2:59 PM, John Pyeatt john.pye...@singlewire.comwrote:
Caused by: java.io.IOException: Unable to create directory
/data-1/cassandra/data/SinglewireSupport/Binaries/backups
This is an exception directly from a core java method. The cause is
99.9% likely to be
On Mon, Dec 2, 2013 at 1:08 PM, Brian Tarbox tar...@cabotresearch.comwrote:
We're making several changes and I'd to confirm that our order of making
them is reasonable. Right now we have 4 node system at replicationFactor=2
running 1.1.6.
We've moving to a 6 node system at rf=3 running
On Mon, Dec 2, 2013 at 8:16 AM, chandra Varahala
hadoopandcassan...@gmail.com wrote:
I have cassandra cluster with 5 nodes with 1 replication factor initially.
Now i changed to replication factor 3 and ran nodetool repair.
Is there way i can verify that i have 3 replicas ?
Use findrow from
No, there is no cqlshlib found at /usr/share/pyshared/cqlshlib although
it might because I'm using Fedora which isn't debian.
I did a search and I've found that cqlshlib is in several locations:
/opt_build/fc17/lib/cassandra/pylib/cqlshlib,
/opt_build/fc17/lib/cassandra/pylib/cqlshlib,
Hey why dont you try Datastax Opscenter? Its a cool Gui tool to
start/stop/manage your cluster(even remotely) . It also provides
administrative tools fr checking on the performance with vital statistics.
Definitely worth it.
On Dec 3, 2013 3:14 AM, Kumar Ranjan winnerd...@gmail.com wrote:
Hey
On 12/02/2013 03:43 PM, Kumar Ranjan wrote:
Hey Folks,
I have been using ccm for some time and it's pretty awesome tool to test
out admin stuff. Now, I really want to test modeling data by trying to
access ccm running cassandra using Thrift based pycassaShell client from
remote hosts (not
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