Counter values become under-counted when running repair.

2016-03-23 Thread Dikang Gu
Hello there, We are experimenting Counters in Cassandra 2.2.5. Our setup is that we have 6 nodes, across three different regions, and in each region, the replication factor is 2. Basically, each nodes holds a full copy of the data. When are doing 30k/s counter increment/decrement per node, and at

Re: How to measure the write amplification of C*?

2016-03-23 Thread Dikang Gu
As a follow-up, I'm going to write a simple patch to expose the number of flushed bytes from memtable to JMX, so that we can easily monitor it. Here is the jira: https://issues.apache.org/jira/browse/CASSANDRA-11420 On Thu, Mar 10, 2016 at 12:55 PM, Jack Krupansky wrote: > The doc does say this

[GitHub] cassandra pull request: Fix bug for running on ppc64

2016-03-23 Thread mlpesant
Github user mlpesant commented on the pull request: https://github.com/apache/cassandra/pull/65#issuecomment-200555378 Moved this request to JIRA https://issues.apache.org/jira/browse/THRIFT-3754 --- If your project is set up for it, you can reply to this email and have your reply

[GitHub] cassandra pull request: Fix bug for running on ppc64

2016-03-23 Thread mlpesant
Github user mlpesant closed the pull request at: https://github.com/apache/cassandra/pull/65 --- 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

[GitHub] cassandra pull request: Fix bug for running on ppc64

2016-03-23 Thread verma7
Github user verma7 commented on the pull request: https://github.com/apache/cassandra/pull/65#issuecomment-200539241 Hi @mlpesant, please see the steps on how to contribute to Cassandra are available on the wiki (https://wiki.apache.org/cassandra/HowToContribute). Notably, we

[GitHub] cassandra pull request: Fix bug for running on ppc64

2016-03-23 Thread mlpesant
GitHub user mlpesant opened a pull request: https://github.com/apache/cassandra/pull/65 Fix bug for running on ppc64 I was getting errors like the one below when trying to build on POWERpc. I fixed this by adding in the build.xml. Thanks. ``` [javac] /tmp/pkb/c