[erlang-questions] systematic global registration discrepancies

Valentin Nechayev <>
Sat Dec 18 08:29:55 CET 2010


 Tue, Nov 23, 2010 at 16:10:24, netch wrote about "[erlang-questions] systematic global registration discrepancies": 

> we are using Erlang cluster for 20-25 nodes which all resides on different
> hosts. We are experiencing systematic problems with global registration of
> following kinds:
> 
> 1. Attempt of register via global:register_name() hangs for an unlimited time
> (we could see it for a few hours until our patience is expired).
> 
> 2. A name which is successfully reported as registered disappears from
> registered name lists at all nodes (including the registering one!)
> 
> We had to add monitoring of global functionality which stops the node where
> registration hangs.  It periodically detects registration failure and stops
> nodes, usually this is group of 7-10 nodes per one such failure. But it can't
> detect second case (silent disappearing).
> 
> We use R12B5; it's planned to upgrade but is impossible for the closest next
> release.

R14B01 - the same but length of failing period seems reduced (on partial
statistics; full results will be in a few days)

> Did anybody seen this? Please suggest how to debug such problem.

Repeating the question.


-netch-


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