Thank you very much for the quick answer, Patrick. Kind regards, Marc
> -----Original Message----- > From: Patrick Hunt [mailto:ph...@apache.org] > Sent: Dienstag, 14. Juli 2009 18:28 > To: zookeeper-user@hadoop.apache.org > Subject: Re: Read-your-writes consistency? > > Yes, this is a strong guarantee: > http://hadoop.apache.org/zookeeper/docs/current/zookeeperProgr > ammers.html#ch_zkGuarantees > > Sync is only necessary if client A makes a change, then > client B wishes to read that change with guarantee that it > will see the successfully applied change previously made by A > (this is typically only an issue if A & B communicate through > some non-zk channel, such as direct socket connection btw A & B). > > Patrick > > Marc Frei wrote: > > Dear ZooKeeper users, > > > > a short question about ZooKeeper's consistency model: > > > > Does ZooKeeper support "read-your-writes consistency"? E.g., after > > having created a node, will the same client always find the newly > > created node via getChildren? If yes, is this specified > behavior the > > client can rely on? Or is it better to always call sync in order to > > enforce consistency? > > > > Thanks in advance and kind regards, > > > > Marc >
