hey Benjamin, I'm not aware of any such edge cases, but that does not mean that they don't exist. From the log:
2016-10-24 15:52:43 DEBUG o.a.z.ClientCnxn:889 - Got WatchedEvent state:SyncConnected type:NodeDeleted path:/benji2/123 for sessionid 0x20014cf3d480003 This is being logged by the Zookeeper client itself that Curator is using. So it doesn't appear to be Curator inferring some sort of delete event. It looks like an explicit watched event coming from Zookeeper. cheers On Tue, Oct 25, 2016 at 10:04 AM, Benjamin Jaton <[email protected]> wrote: > Hello, > > I am using PathChildrenCache and I am receiving delete events even if > there is no actual delete in ZK. I printed the WatchedEvent details for 2 > of those delete events (of the same node /benji2/123) I received in the > same JVM run: > > > 2016-10-24 15:52:43 DEBUG o.a.z.ClientCnxn:889 - Got WatchedEvent > state:SyncConnected type:NodeDeleted path:/benji2/123 for sessionid > 0x20014cf3d480003 > [PathChildrenCacheListener] delete event for /benji2/123 > PathChildrenCacheEvent{type=CHILD_REMOVED, data=ChildData{path='/benji2/123', > stat=19808389169191,19808389169191,1477335789916, > 1477335789916,0,0,0,0,0,0,19808389169191 > , data=[]}} > null > ChildData{path='/benji2/123', stat=19808389169191, > 19808389169191,1477335789916,1477335789916,0,0,0,0,0,0,19808389169191 > , data=[]} > getAversion=0 > 2016-10-24 15:52:43 DEBUG o.a.z.ClientCnxn:867 - Got notification > sessionid:0x20014cf3d480003 > getCtime=1477335789916 > getCversion=0 > getCzxid=19808389169191 > getMtime=1477335789916 > 2016-10-24 15:52:43 DEBUG o.a.z.ClientCnxn:889 - Got WatchedEvent > state:SyncConnected type:NodeDeleted path:/benji2 for sessionid > 0x20014cf3d480003 > getMzxid=19808389169191 > getPzxid=19808389169191 > getVersion=0 > > (...) > > 2016-10-24 15:58:06 DEBUG o.a.z.ClientCnxn:889 - Got WatchedEvent > state:SyncConnected type:NodeDeleted path:/benji2/123 for sessionid > 0x20014cf3d480003 > [PathChildrenCacheListener] delete event for /benji2/123 > PathChildrenCacheEvent{type=CHILD_REMOVED, data=ChildData{path='/benji2/123', > stat=19808389169191,19808389169191,1477335789916, > 1477335789916,0,0,0,0,0,0,19808389169191 > , data=[]}} > null > 2016-10-24 15:58:06 DEBUG o.a.z.ClientCnxn:867 - Got notification > sessionid:0x20014cf3d480003 > ChildData{path='/benji2/123', stat=19808389169191, > 19808389169191,1477335789916,1477335789916,0,0,0,0,0,0,19808389169191 > , data=[]} > getAversion=0 > getCtime=1477335789916 > getCversion=0 > getCzxid=19808389169191 > getMtime=1477335789916 > getMzxid=19808389169191 > getPzxid=19808389169191 > getVersion=0 > > > Are there known edge cases where this can happen? Again there is no delete > at all in ZK, I verified the transaction log of ZooKeeper, no delete is > present). > > Thanks, > Benjamin >
