One thing to keep in mind is that the wchs, wchp and wchc commands currently return information only about data change watches (Watcher instances passed to ZooKeeper#exists or ZooKeeper#getData). These commands will not return information about child watches (Watcher instances passed to ZooKeeper#getChildren). ZOOKEEPER-1274 is an open issue tracking enhancements to these commands to support returning information about child watches too.
https://issues.apache.org/jira/browse/ZOOKEEPER-1274 --Chris Nauroth On 4/28/15, 8:23 AM, "Sékine Coulibaly" <[email protected]> wrote: >The four letters command can be of some help here : > >echo "wchp" | nc localhost 2181 > >Do you need access from a Java or C API ? > >Reference: >http://zookeeper.apache.org/doc/trunk/zookeeperAdmin.html#The+Four+Letter+ >Words > > >2015-04-28 16:45 GMT+02:00 B. Heath Robinson <[email protected]>: > >> I have a system where a client watches ephemeral nodes. I would like >>to be >> able to know if there are any watches for a node. Is there any way to >>do >> this? >>
