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Posted to user@zookeeper.apache.org by Luc Claes <lu...@contactoffice.com> on 2011/02/24 17:27:45 UTC

WriteLocks and sessions [beginner]

Hi,

Could someone please explain me why WriteLocks, in the 'recipes' 
package, seems to be restricted to one WriteLock instance (with a given 
id) per ZooKeeper session ? As a Zookeeper session could be used by 
multiple threads simultaneously (right ?), why couldn't we use multiple 
accesses to the same lock in the same session ?

By looking at zookeeper-78 I only see that we need an extra id to avoid 
some side-effects. Sessions Id are used as a prefix. Is this right ? 
Shouldn't we use a session id + thread id or something like that ?

Thanks,

Luc