Rolling back Cassandra upgrades (tarball)

2018-09-30 Thread Jonathan Baynes
Hi community, Wonder if you can help me. I have a cluster on v3.0.11 I am planning to upgrade this to 3.10. Is rolling back the binaries a viable solution? From reading blogs and such, I’ve read that downgrading is a no-no. Whilst it is possible literally and in theory possible, many of the

Re: Rolling back Cassandra upgrades (tarball)

2018-09-30 Thread Nate McCall
> I have a cluster on v3.0.11 I am planning to upgrade this to 3.10. > Is rolling back the binaries a viable solution? What's the goal with moving form 3.0 to 3.x? Also, our latest release in 3.x is 3.11.3 and has a couple of important bug fixes over 3.10 (which is a bit dated at this point).

how to configure the Token Allocation Algorithm

2018-09-30 Thread onmstester onmstester
Since i failed to find a document on how to configure and use the Token Allocation Algorithm (to replace the random Algorithm), just wanted to be sure about the procedure i've done: 1. Using Apache Cassandra 3.11.2 2. Configured one of seed nodes with num_tokens=8 and started it. 3. Using Cqlsh

Re: Separated commit log directory configuration

2018-09-30 Thread Nate McCall
> We only increased commitlog_total_space_in_mb so that Cassandra fully uses > the dedicated disk, but that may be an error? > The default value for this setting is (per the documentation): > > The default value is the smaller of 8192, and 1/4 of the total space of > the commitlog volume. >

Re: SNAPSHOT builds?

2018-09-30 Thread Nate McCall
We'll start publishing snapshot builds in the near future to ease testing (support for such just added via CASSANDRA-12704). On Sun, Sep 30, 2018 at 5:11 AM James Carman wrote: > > Okay, cool. So, 4.0.0-SNAPSHOT doesn’t have Java 11 support quite yet? No > big deal. Just trying to get ahead

Re: Rolling back Cassandra upgrades (tarball)

2018-09-30 Thread Jeff Jirsa
Definitely don’t go to 3.10, go to 3.11.3 or newest 3.0 instead -- Jeff Jirsa On Sep 30, 2018, at 5:29 PM, Nate McCall wrote: >> I have a cluster on v3.0.11 I am planning to upgrade this to 3.10. >> Is rolling back the binaries a viable solution? > > What's the goal with moving form 3.0 to

Separated commit log directory configuration

2018-09-30 Thread Jonathan Ballet
Hi, Cassandra's documentation has several recommendations for moving the commit log directory to a dedicated disk, separated from the sstables disk(s). However, I couldn't find much information on what would be good practices regarding this dedicated commit log disk and I'm wondering how to