truncate command fails

2012-02-07 Thread Patrik Modesto
Hi, I've a strange problem with my test cluster. Calling truncate on a small ColumnFamily on idle cluster of 4 nodes returns UnavailableException after 10s. That 10s is set in rpc_timeout_in_ms. All nodes are up and running, here is nodetool ring: Address DC RackStatus

RE: Internal error processing batch_mutate java.util.ConcurrentModificationException

2012-02-07 Thread Viktor Jevdokimov
Yes, the exception is for CounterColumn on Standard column family. Created https://issues.apache.org/jira/browse/CASSANDRA-3870 Best regards/ Pagarbiai Viktor Jevdokimov Senior Developer Email: viktor.jevdoki...@adform.com Phone: +370 5 212 3063. Fax: +370 5 261 0453 J. Jasinskio

Wrong version in debian repository

2012-02-07 Thread ruslan usifov
Hello I think that in http://www.apache.org/dist/cassandra/debian repo there is incorret version for 0.8 branch. There is 0.8.8, but latest version is 0.8.9. May be this repository is abandoned?

Re: truncate command fails

2012-02-07 Thread Brandon Williams
On Tue, Feb 7, 2012 at 2:17 AM, Patrik Modesto patrik.mode...@gmail.com wrote: Hi, I've a strange problem with my test cluster. Calling truncate on a small ColumnFamily on idle cluster of 4 nodes returns UnavailableException after 10s. That 10s is set in rpc_timeout_in_ms. Make sure you have

Virgil Moved (and Cassandra-Triggers coming soon)

2012-02-07 Thread Brian O'Neill
FYI -- we moved Virgil to Github to make it easier for people to contribute. https://github.com/hmsonline/virgil Also, we created an organization profile (hmsonline) to house all of our storm/cassandra related work. https://github.com/hmsonline Under that profile, we'll be releasing

Re: Leveled Compaction Strategy; Expected number of files over time?

2012-02-07 Thread Jonathan Ellis
It looks like what you're seeing is, stress far outpaced the ability of compaction to keep up (which is normal for our default settings, which prioritize maintaining request throughput over compaction), so LCS will grab a bunch of L0 sstables, compact them together with L1 resulting in a spike of

Re: Cassandra OOM - 1.0.2

2012-02-07 Thread aaron morton
Just to ask the stupid question, have you tried setting it really high ? Like 50 ? Cheers - Aaron Morton Freelance Developer @aaronmorton http://www.thelastpickle.com On 7/02/2012, at 10:27 AM, Ajeet Grewal wrote: Here are the last few lines of strace (of one of the

Re: sensible data model ?

2012-02-07 Thread aaron morton
I do not think the mmap OOM is connected with the row size. Add some info to the other thread if you think it's relevant. Cheers - Aaron Morton Freelance Developer @aaronmorton http://www.thelastpickle.com On 7/02/2012, at 10:33 AM, Ajeet Grewal wrote: It's also a good idea

Re: sensible data model ?

2012-02-07 Thread aaron morton
None of those jump out at me as horrible for my case. If I modelled with Super Columns I would have less than 10,000 Super Columns with an average of 50 columns - big but no insane ? I would still try to do it without super columns. The common belief is they are about 10% slower, and they

Re: sensible data model ?

2012-02-07 Thread Franc Carter
On Wed, Feb 8, 2012 at 6:05 AM, aaron morton aa...@thelastpickle.comwrote: None of those jump out at me as horrible for my case. If I modelled with Super Columns I would have less than 10,000 Super Columns with an average of 50 columns - big but no insane ? I would still try to do it without

Re: Cassandra OOM - 1.0.2

2012-02-07 Thread Ajeet Grewal
On Tue, Feb 7, 2012 at 10:45 AM, aaron morton aa...@thelastpickle.com wrote: Just to ask the stupid question, have you tried setting it really high ? Like 50 ? No I have not. I moved to mmap_index_only as a stopgap solution. Is it possible for there to be that many mmaps for about 300 db

Re: WARN [Memtable] live ratio

2012-02-07 Thread Roshan
It happens to me like this. I have 2 node Cassandra cluster with one column space. No super columns. Start server freshly (no commit logs, no SSTables, no saves caches, basically nothing). Then write process starts (not much write load). See what my log says: 2012-02-06 13:06:13,598 INFO

Re: truncate command fails

2012-02-07 Thread Patrik Modesto
On Tue, Feb 7, 2012 at 18:35, Brandon Williams dri...@gmail.com wrote: Make sure you have JNA, without it the cost of forking ln to snapshot is expensive. I assume JNA is enabled. From the output.log: INFO 10:16:20,725 JNA mlockall successful Regards, P.