Let's start with the JIRA ;-) It's ZOOKEEPER-1381 On Mon, Jan 30, 2012 at 10:03 PM, Mahadev Konar <[email protected]>wrote:
> Yes please. Prefer a patch with it :) but again thats not necessary! > > > On Mon, Jan 30, 2012 at 12:36 PM, N Keywal <[email protected]> wrote: > > Hi, > > > > Thanks for your answers. The workaround is quite smart (thanks again!), > but > > on the long term, I would definitively prefer a simple API call. It would > > be less environment dependent as well. > > > > Do you want me to create a JIRA for it? > > > > Cheers, > > > > N. > > > > On Mon, Jan 30, 2012 at 7:12 PM, Patrick Hunt <[email protected]> wrote: > > > >> +1, that would be a good api addition. > >> > >> On Mon, Jan 30, 2012 at 10:10 AM, Mahadev Konar < > [email protected]> > >> wrote: > >> > Keywal, > >> > Right now there isnt anyway for the client to tell which version of > >> > server its talking to. You can probably hack something around the stat > >> > command: > >> > > >> > echo stat | nc hostname clientport to get the version, but other than > >> > that we dont have such an api. I think its probably worth having such > >> > an api implemented. > >> > > >> > Here is the output of stat on my laptop: > >> > > >> > ----------------------- > >> > Zookeeper version: 3.4.2--1, built on 01/30/2012 17:43 GMT > >> > Clients: > >> > /127.0.0.1:54951[0](queued=0,recved=1,sent=0) > >> > > >> > Latency min/avg/max: 0/0/0 > >> > Received: 1 > >> > Sent: 0 > >> > Outstanding: 0 > >> > Zxid: 0x500000001 > >> > Mode: follower > >> > Node count: 7 > >> > -------------------- > >> > > >> > thanks > >> > mahadev > >> > > >> > On Mon, Jan 30, 2012 at 1:04 AM, N Keywal <[email protected]> wrote: > >> >> Hello, > >> >> > >> >> What's the recommended way for a client to get the version of the > server > >> >> it's connected to? > >> >> > >> >> I would like to write a (java) client that uses the "multi" function > >> >> available since 3.4.x, with a fall-back implementation if the server > is > >> a > >> >> 3.3. Or at the very least to check that the server is a 3.4+ before > >> using > >> >> "multi". > >> >> > >> >> I looked at the java client API but I didn't find a way to get this > >> info. > >> >> > >> >> When the client uses "multi" when connected to a 3.3 server, it > hangs (I > >> >> was hoping for something like KeeperException.UnimplementedException, > >> but > >> >> it's not the case). > >> >> > >> >> Thanks in advance for your help, > >> >> > >> >> N. > >> > > >> > > >> > > >> > -- > >> > Mahadev Konar > >> > Hortonworks Inc. > >> > http://hortonworks.com/ > >> > > > > -- > Mahadev Konar > Hortonworks Inc. > http://hortonworks.com/ >
