Re: 4.0 Testing Signup

Hi, I'm volunteer to be contributor on Metrics or Tooling component. Are we supposed/allowed to edit Confluence page directly?Btw I think that tooling should be split, maybe one ticket per tool? Thanks, RomainLe mercredi 7 novembre 2018 à 22:51:30 UTC+1, sankalp kohli a écrit : This

Re: What would a pluggable logging implementation look like?

Hi, I think you have to look at how authenticator/authorizer/role_manager are handled.e.g.  https://github.com/apache/cassandra/blob/trunk/conf/cassandra.yaml#L103https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/auth/AllowAllAuthenticator.java Best,Romain Le Mercre

Re: Performance issue in 3.0.9

Yes you should provide more context."Lots of timeouts": read? write? both?Did you run sstableupgrade? Java version ? (C* 3.0 requires Java 8u40 or later)What is your data model? Lots of counters? Compression enabled on tables? "No updates/deletes": no deletes but is there TTL on data? etc. Best

Re: Rollback procedure for Cassandra Upgrade.

To be able to downgrade we should be able to pin both commitlog and sstables versions, e.g. -Dcassandra.commitlog_version=3 -Dcassandra.sstable_version=jb That would be awesome because it would decorrelate binaries version and data version. Upgrades would be much less risky so I guess that adopti

Re: Backports to 2.1.16

Interesting, will you publish the backports on https://github.com/apple ? Thanks, Romain

Re: [VOTE] Release Apache Cassandra 2.1.16

Hi, I use the "current 2.1.16" (commit cdd535fcac4ba79bb371e8373c6504d9e3978853) on production in 5 DCs (82 nodes) out of 7 and it works well!I've just had to add a MBean to track changes of the NTR queue length on top of cdd535f. This allow to make correlations with other metrics and see the im

R: Re: Hints handoff is memory intensive

+1 for G1 with such a heap size. And don't set heap new size, let g1 decide. Inviato da Yahoo Mail su Android Il mar, 20 set, 2016 alle 9:01, Jeff Jirsa ha scritto: Major changes in 3.0, but the big ones involve storage - parent ticket is https://issues.apache.org/jira/browse/CASSANDRA-942

Re: CASSANDRA-12278

Hi,  You can force the Java version used by Cassandra here:  https://github.com/apache/cassandra/blob/cassandra-3.0/bin/cassandra.in.bat#L29  Best, Romain Le Samedi 3 septembre 2016 11h11, Andy Cobley a écrit : Thanks Michael and Paulo, Upon further investigation, this is NOT a cassand

Re: C* data validation in new DC

Hi, Only a repair between each DC (i.e. on the whole cluster) can guarantee that your DCs are synced. You can make some checks like data size, estimation of number of keys, etc. but it's not accurate at all. Note: your question is intended to u...@cassandra.apache.org Best, Romain Le Mercre

Re: Support Multi-Tenant in Cassandra

I don't use C* in such a context but out of curiosity did you set the  request_scheduler to RoundRobin or did you implement your own scheduler? Romain Le Vendredi 15 juillet 2016 8h39, jason zhao yang a écrit : Hi, May I ask is there any plan of extending functionalities related to Mult

Re: RandomPartitioner and new token allocation algorithm

I targeted the dev list because I would like to know why the developer (patch by branimir and reviewed by benedict) mentions "Only supported with the Murmur3Partitioner" whereas his patch uses IPartitioner interface. (I will try to reach them on IRC if they don't see this message.)

Re: RandomPartitioner and new token allocation algorithm

We have running clusters which use RandomPartitioner that's why I wonder if we could use this feature in the future. Best, Romain

RandomPartitioner and new token allocation algorithm

Hi all, cassandra.yaml mentions that the new token allocation algorithm is only supported with the Murmur3Partitioner [1]. When looking at the commit [2] I see that IPartitioner interface is used. I do see references to Murmur3Partitioner but only in tests classes. What would prevent to use Rand