Re: Somewhat Weekly Cassandra Dev Wrapup

2017-10-31 Thread Jeff Beck
On the hashCode violations they are all on https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/dht/Range.java which does seem to get the correct hashcode impl from https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/dht/AbstractBounds.java Jeff On

Re: Somewhat Weekly Cassandra Dev Wrapup

2017-10-31 Thread kurt greaves
Looks like that solves that problem. Probably wouldn't be a bad idea to include that list in the release posts as well as link to changes.txt? At the very least it will make us a bit more careful about assigning fix versions (maybe). On 1 November 2017 at 00:36, Michael Shuler wrote: > On 10/31/

Re: Somewhat Weekly Cassandra Dev Wrapup

2017-10-31 Thread Michael Shuler
On 10/31/2017 07:17 PM, kurt greaves wrote: > It's usually pretty clear what is a fix in the changes log but they > definitely require checking. However I'd say putting more boilerplate in > the changes log isn't really necessary and would be hard to enforce. If we > could generate a report with th

Re: Somewhat Weekly Cassandra Dev Wrapup

2017-10-31 Thread kurt greaves
It's usually pretty clear what is a fix in the changes log but they definitely require checking. However I'd say putting more boilerplate in the changes log isn't really necessary and would be hard to enforce. If we could generate a report with this information from JIRA with desired information wo

Re: Making CommitLog pluggable

2017-10-31 Thread Ariel Weisberg
P.S. I am excited to hear about what new hardware can do in this area compared to existing non-volatile write caches. On Tue, Oct 31, 2017, at 04:38 PM, Ariel Weisberg wrote: > Hi, > > There are pluggable elements to the commit log such as those used to > support mmap or compressed. > > Can you

Re: Making CommitLog pluggable

2017-10-31 Thread Michael Kjellman
I think pluggable commit log is a great idea if we can do it right! 😃 *Especially* given the intent here seems to be motivated by improving endurance and performance on the given storage you're running C* on. We've actually been looking at commit log a bunch recently and doing a pretty deep dive

Re: Making CommitLog pluggable

2017-10-31 Thread Ariel Weisberg
Hi, There are pluggable elements to the commit log such as those used to support mmap or compressed. Can you describe at a high level what a new implementation would look like and why it can't be a mode of the existing implementation? You are not proposing changing the format correct? Regards,

Making CommitLog pluggable

2017-10-31 Thread 大平怜
Hello, We are developing a Cassandra plugin to store CommitLog on our low-latency Flash device (CAPI-Flash). To do that, the original CommitLog interface must be changed to allow plugins. Anyone has any thoughts about it? We have our codebase ready, but we think we should start with high-level