Re: garbage collector choice and tuning

Okay, will do. I'll give things some thought and then will create a separate wiki page for GC/tuning. On Mon, May 16, 2016 at 2:10 PM, Flavio Junqueira wrote: > I have granted you access, Guy, so you can edit the wiki now. > > That section in troubleshooting is pretty short and it is such an >

Re: garbage collector choice and tuning

I have granted you access, Guy, so you can edit the wiki now. That section in troubleshooting is pretty short and it is such an important issue that I suggest we create a page for it, but feel free to suggest a different path, I've suggested it because I get this question outside the list a lo

Re: garbage collector choice and tuning

Hi Flavio, Not sure if that was addressed to me? I noticed the GC section in *https://cwiki.apache.org/confluence/display/ZOOKEEPER/Troubleshooting * (I assume this is more recent than the pages at wiki.apache.org) Perhaps addin

Re: garbage collector choice and tuning

Perhaps start a wiki page on GC tuning? Sounds like some great experience reported on this thread. -Flavio On 15 May 2016 20:34, "Guy Laden" wrote: > Maugli, Thanks so much for taking the time to write at length, and for the > great pointers. > Thanks all for sharing. >

Re: garbage collector choice and tuning

Maugli, Thanks so much for taking the time to write at length, and for the great pointers. Thanks all for sharing.

Re: garbage collector choice and tuning

We've been running run hundreds of zookeeper clusters with G1 on relatively small heaps (some even as low as 2GB) with almost no tuning and had a very pleasant time so far. Granted, our use is relatively light most of the time, but still, GC has just not been an issue for us since we switched to th

Re: garbage collector choice and tuning

Please do report your experiences to the list. I think generally folks would be interested (I would). My 0.02 - with such small heap sizes with ZK I typically use CMS. It's pretty much fire/forget with the defaults. My experience with G1 (granted typically larger heaps) is that it requires more tu

Re: garbage collector choice and tuning

Hi all, I do have one specific story worth mentioning in this subject: About one year ago I was working for a financial company, where we had to maintain a system responsible tons of EOD stock related calculations. The system was working quite okay, but during the quarterly rebalances we always ex

garbage collector choice and tuning

Hi, We are considering CMS vs G1 for ZooKeeper running under Oracle JDK8. The expected heap size is 4-6GB. How workload-specific is this choice in your opinion and it what ways? E.g. if many short sessions prefer G1, etc... Has anybody had experience they're willing to share regarding this? We'd al