[#61424] [REJECT?] xmalloc/xfree: reduce atomic ops w/ thread-locals — Eric Wong <normalperson@...>

I'm unsure about this. I _hate_ the extra branches this adds;

13 messages 2014/03/12

[ruby-core:61334] [ruby-trunk - Bug #9525] Stuck with Socket.pack_sockaddr_in

From: sonots@...
Date: 2014-03-06 17:04:42 UTC
List: ruby-core #61334
Issue #9525 has been updated by Naotoshi Seo.


I applied following consecutive patches for ruby 2.1.1, and tried. 

https://github.com/ruby/ruby/commit/948ce9decb97e5ff0833e53a392aa9f1d42c9b0d
https://github.com/ruby/ruby/commit/dd1c3a75096b97c1ebcb8597c001761ddfb3c1bf
https://github.com/ruby/ruby/commit/2e6b97a45d077979121b29484a8831034d47ef50

Before (ruby 2.1.1): 

The stuck was able to be reproduced with ruby 2.1.1. 
I restarted my entire fluentd cluster 12 times, and it occurred at 4th and 12th, that is, 2 times out of 12. 

After (ruby 2.1.1 + patch)

I restarted the fluentd cluster 36 times, and got stuck 0 time. 

After all, it looks this patch fixed the issue. 

----------------------------------------
Bug #9525: Stuck with Socket.pack_sockaddr_in
https://bugs.ruby-lang.org/issues/9525#change-45658

* Author: Naotoshi Seo
* Status: Closed
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
* ruby -v: 1.9.3p194
* Backport: 1.9.3: REQUIRED, 2.0.0: REQUIRED, 2.1: REQUIRED
----------------------------------------
We met this trouble with Fluentd https://github.com/fluent/fluentd. 

Fluentd is sometimes stuck at `Socket.pack_sockaddr_in` line on shutdown. 
Here is the gist https://gist.github.com/sonots/9047653 to explain details. 





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