Thanks for the pointer. I restarted entire cluster and started nodes at the
same time. However, I still see the issue. The view is not consistant. Am
running 0.7.5.
In general, if a node with bad ring view starts first, then I guess the
restart also doesnt help as it might be propagating its
Strongly suspect that he has invalid unicode characters in his keys.
0.6 wasn't as good at validating those as 0.7.
On Sun, May 8, 2011 at 8:51 PM, aaron morton aa...@thelastpickle.com wrote:
Out of interest i've done some more digging. Not sure how much more I've
contributed but here goes...
On Sat, May 7, 2011 at 7:20 PM, Terje Marthinussen
tmarthinus...@gmail.com wrote:
This is an all ssd system. I have no problems with read/write performance
due to I/O.
I do have a potential with the crazy explosion you can get in terms of disk
use if compaction cannot keep up.
As things
I'm also not too much in favor of triggering major compactions, because it
mostly have a nasty effect (create one huge sstable).
If that is the case, why can't major compactions create many,
non-overlapping SSTables?
In general, it seems to me that non-overlapping SSTables have all the
Gossip should help them converge on the truth.
Can you give an example of the different views from nodetool ring ?
Also check the logs to see if there is anything been logged about endpoints.
Hope that helps.
-
Aaron Morton
Freelance Cassandra Developer
@aaronmorton
You can check the schema using cassandra-cli, run describe cluster it will
tell you how many schemas are defined.
I think the best approach when you discover bad schemas is to drain then stop
the affected node, remove the Location, Migrations and Schema files in the
System data directory,
On Mon, May 9, 2011 at 7:18 AM, aaron morton aa...@thelastpickle.com wrote:
You can check the schema using cassandra-cli, run describe cluster it will
tell you how many schemas are defined.
I think the best approach when you discover bad schemas is to drain then
stop the affected node, remove
If they each have their own copy of the data, then they are *not*
non-overlapping!
If you have non-overlapping SSTables (and you know the min/max keys), it's
like having one big SSTable because you know exactly where each row is, and
it becomes easy to merge a new SSTable in small batches, rather
Sorry, I was referring to the claim that one big file was a problem, not
the non-overlapping part.
If you never compact to a single file, you never get rid of all
generations/duplicates.
With non-overlapping files covering small enough token ranges, compacting
down to one file is not a big issue.
Fixed since 0.7.4. You should upgrade.
https://issues.apache.org/jira/browse/CASSANDRA-2282
On Sun, May 8, 2011 at 2:37 PM, Eric tamme eta...@gmail.com wrote:
I have a 4 node ring that was setup with tokens a,b,c,d using NTS and
2 nodes in each of 2 datacenters with a replication of DC1:1,
I get this error:
bin/cassandra: syntax error at line 29: `system_memory_in_mb=$' unexpected
Thanks
JK
--
It's always darkest just before you are eaten by a grue.
Use bash as a shell
#bash bin/cassandra -f
-Ursprüngliche Nachricht-
Von: Jeffrey Kesselman [mailto:jef...@gmail.com]
Gesendet: Montag, 9. Mai 2011 17:12
An: user@cassandra.apache.org
Betreff: Does anyone have Cassandra running on OpenSolaris?
I get this error:
bin/cassandra: syntax
Ah. That solved it. ty.
On Mon, May 9, 2011 at 11:29 AM, Roland Gude roland.g...@yoochoose.com wrote:
Use bash as a shell
#bash bin/cassandra -f
-Ursprüngliche Nachricht-
Von: Jeffrey Kesselman [mailto:jef...@gmail.com]
Gesendet: Montag, 9. Mai 2011 17:12
An:
Hi everyone.
I have a few sstables with around 500 million keys, and memory usage has
grown a lot, I suppose because of the indexes. This sstables are
comprised of skinny rows, but a lot of them. Would tuning index interval
make the memory usage go down? And what would the performance hit be?
I
I have a few sstables with around 500 million keys, and memory usage has
grown a lot, I suppose because of the indexes. This sstables are
comprised of skinny rows, but a lot of them. Would tuning index interval
make the memory usage go down? And what would the performance hit be?
Assuming no
El lun, 09-05-2011 a las 17:58 +0200, Peter Schuller escribió:
I have a few sstables with around 500 million keys, and memory usage has
grown a lot, I suppose because of the indexes. This sstables are
comprised of skinny rows, but a lot of them. Would tuning index interval
make the memory
I have not looked into smaps before. But it actually seems odd that that
mmaped Index files are taking up so *little memory*. Are they only a
few kb on disk?
The sum of the sizes of all *-Index.db files in /var/lib/cassandra is 2924kb.
Is this a snapshot taken shortly after the process
On Thu, May 5, 2011 at 5:56 PM, Benjamin Coverston
ben.covers...@datastax.com wrote:
How many column families do you have?
We have 10 key spaces, each with 2 column families.
On 5/4/11 12:50 PM, Hannes Schmidt wrote:
Hi,
We are using Cassandra 0.6.12 in a cluster of 9 nodes. Each node is
On Thu, May 5, 2011 at 4:16 PM, aaron morton aa...@thelastpickle.com wrote:
Hannes,
To get a baseline of behaviour set disk_access to standard. You will
probably want to keep it like that if you want better control over the memory
on the box.
I'll do a test with standard and report
Jonathan thanks for your email. If I use datacenter shard strategy in
cassandra
how will it effect the ring structure of the cassandra cluster can you
please explain.
Thanks
Anurag
On Sun, May 8, 2011 at 11:13 PM, Jonathan Ellis jbel...@gmail.com wrote:
Step 0: Upgrade to 0.7 and read about
Thanks!
On Sun, May 8, 2011 at 3:40 PM, aaron morton aa...@thelastpickle.comwrote:
Ah, I see the case you are talking about.
If the node will auto bootstrap on startup if when it joins the ring: it is
not already bootstrapped, auto bootstrap is enabled, and the node is not in
it's own seed
Hi Adam,
We have been facing some similar issues of late. Wondering if Jonathan's
suggestions worked for you.
Thanks!
On Sat, May 7, 2011 at 6:37 PM, Jonathan Ellis jbel...@gmail.com wrote:
The live:serialized size ratio depends on what your data looks like
(small columns will be less
If you are using 0.7 the recommended approach is to use the
NetworkTopologyStrategy.
Here is a recent discussion on setting the tokens in a multi DC deployment
http://www.mail-archive.com/user@cassandra.apache.org/msg12898.html
Can you move to 0.7 ?
Cheers
-
Aaron Morton
I have a Cassandra 0.7.0, 3 node cluster with logging set to DEBUG. A few
days ago, and I'm not sure what triggered this, the logs started showing
messages like
DEBUG 17:37:30,399 logged out: #User allow_all groups=[]
every second or so, regardless whether there was Cassandra activity. Today I
On 5/6/11 9:47 PM, Jonathan Ellis wrote:
On Fri, May 6, 2011 at 5:13 PM, Alex Araujo
cassandra-us...@alex.otherinbox.com wrote:
I raised the default MAX_HEAP setting from the AMI to 12GB (~80% of
available memory).
This is going to make GC pauses larger for no good reason.
Good point - only
It just means a client connection was closed.
On Mon, May 9, 2011 at 5:41 PM, Suan Aik Yeo yeosuan...@gmail.com wrote:
I have a Cassandra 0.7.0, 3 node cluster with logging set to DEBUG. A few
days ago, and I'm not sure what triggered this, the logs started showing
messages like
DEBUG
Hi All,
I have following in my cassandra.yaml
keyspaces:
- column_families:
- column_metadata: []
column_type: Standard
compare_with: BytesType
gc_grace_seconds: 86400
key_cache_save_period_in_seconds: 14400
keys_cached: 0.0
max_compaction_threshold: 32
http://wiki.apache.org/cassandra/FAQ#no_keyspaces
On Mon, May 9, 2011 at 7:51 PM, Anurag Gujral anurag.guj...@gmail.comwrote:
Hi All,
I have following in my cassandra.yaml
keyspaces:
- column_families:
- column_metadata: []
column_type: Standard
compare_with:
Ah, must be the status check that I set up. Thanks!
On Mon, May 9, 2011 at 7:42 PM, Tyler Hobbs ty...@datastax.com wrote:
It just means a client connection was closed.
On Mon, May 9, 2011 at 5:41 PM, Suan Aik Yeo yeosuan...@gmail.com wrote:
I have a Cassandra 0.7.0, 3 node cluster with
Hello,
I am unclear on Why deleting a row in Cassandra does not delete a row key?
Is an empty row never deleted from Column Family?
It would be of great help if someone can elaborate on this.
Thanks,
Anuya
Sorry, a typo in title corrected for same previous post
Hello,
I am unclear on Why deleting a row in Cassandra does not delete a row key?
Is an empty row never deleted from Column Family?
It would be of great help if someone can elaborate on this.
Thanks,
Anuya
http://wiki.apache.org/cassandra/FAQ#range_ghosts
On Mon, May 9, 2011 at 9:24 PM, anuya joshi anu...@gmail.com wrote:
Hello,
I am unclear on Why deleting a row in Cassandra does not delete a row key?
Is an empty row never deleted from Column Family?
It would be of great help if someone can
Hi,
I am trying to rename my cluster which has several keyspaces running on
cassandra 0.7.5. When I try to remove the system files as suggested by
http://wiki.apache.org/cassandra/FAQ#clustername_mismatch , I get Could not
read system table. Did you change partitioners? error. If I remove all
Can you provide the full error stack, it will show where it failed when
starting up.
AFAIK this i the correct process. I just did a quick test on a singe 0.7 node
and it could start up after removing the locations SSTables.
If you go ahead with removing all the system sstables you can
Look for Where are my keyspaces? on following page:
*http://wiki.apache.org/cassandra/StorageConfiguration
*
On Mon, May 9, 2011 at 5:51 PM, Anurag Gujral anurag.guj...@gmail.comwrote:
Hi All,
I have following in my cassandra.yaml
keyspaces:
- column_families:
- column_metadata:
http://wiki.apache.org/cassandra/FAQ#no_keyspaces
On Tue, May 10, 2011 at 6:21 AM, Narendra Sharma
narendra.sha...@gmail.comwrote:
Look for Where are my keyspaces? on following page:
*http://wiki.apache.org/cassandra/StorageConfiguration
*
On Mon, May 9, 2011 at 5:51 PM, Anurag Gujral
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