C* memory leak during compaction

2016-03-11 Thread ssiv...@gmail.com
I have 7 nodes of C* v2.2.5 running on CentOS 7 and using jemalloc for dynamic storage allocation. Use only one keyspace and one table with Leveled compaction strategy. I've loaded ~500 GB of data into the cluster with replication factor equals to 3 and waiting until compaction is finished. But

profiling tools for cassandra

2016-03-11 Thread Irfa Nisar
Hi What kind of profiling tools are available for cassandra? Other than datastax that shows read/write throughput, is there a way to visually inspect if the node fielding the question is being burdened? Where and how can i get more info on: 1. Correct balance of data stored and nodes required in t

[GitHub] cassandra pull request: Cass: Implement ...

2016-03-11 Thread vkasar
GitHub user vkasar opened a pull request: https://github.com/apache/cassandra/pull/63 Cass: Implement compaction for a specific t… …oken range You can merge this pull request into a Git repository by running: $ git pull https://github.com/vkasar/cassandra trunk Alternativ

[GitHub] cassandra pull request: Cass: Implement ...

2016-03-11 Thread jasobrown
Github user jasobrown commented on the pull request: https://github.com/apache/cassandra/pull/63#issuecomment-195596203 What version of c* are you targeting? Looks like you've based it on whatever our current trunk is. For the OSS c*, you are probably best targeting > 2.2, and the bac

[GitHub] cassandra pull request: Cass: Implement ...

2016-03-11 Thread vkasar
Github user vkasar commented on the pull request: https://github.com/apache/cassandra/pull/63#issuecomment-195597797 This is based on OSS c* trunk. --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not

[GitHub] cassandra pull request: Cass: Implement ...

2016-03-11 Thread jasobrown
Github user jasobrown commented on the pull request: https://github.com/apache/cassandra/pull/63#issuecomment-195602892 I thought this was an internal repo, hence my comments. We don't accept PRs for the Apache Cassandra project, so please upload a patch to the JIRA ticket or add a li

[GitHub] cassandra pull request: Cass: Implement ...

2016-03-11 Thread vkasar
Github user vkasar closed the pull request at: https://github.com/apache/cassandra/pull/63 --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is en

Compaction Filter in Cassandra

2016-03-11 Thread Dikang Gu
Hello there, RocksDB has the feature called "Compaction Filter" to allow application to modify/delete a key-value during the background compaction. https://github.com/facebook/rocksdb/blob/v4.1/include/rocksdb/options.h#L201-L226 I'm wondering is there a plan/value to add this into C* as well? Or