Thanks for the responses. Yeah I thought they were weird errors too... :) Below are the logs from zookeeper running in foreground after a connection attempt. But this Exception looks suspicous to me:
[NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@383] - Exception causing close of session 0x10024db7e280006: *Len error 5327937* Has anyone seen this before? The LenError seems to be a thread to google... 2018-04-04 14:06:01,210 [myid:] - INFO [NIOServerCxn.Factory: 0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@215] - Accepted socket connection from /127.0.0.1:55078 2018-04-04 14:06:01,218 [myid:] - INFO [NIOServerCxn.Factory: 0.0.0.0/0.0.0.0:2181:ZooKeeperServer@938] - Client attempting to establish new session at /127.0.0.1:55078 2018-04-04 14:06:01,219 [myid:] - INFO [SyncThread:0:ZooKeeperServer@683] - Established session 0x10024db7e280006 with negotiated timeout 30000 for client /127.0.0.1:55078 2018-04-04 14:06:01,361 [myid:] - WARN [NIOServerCxn.Factory: 0.0.0.0/0.0.0.0:2181:NIOServerCnxn@383] - Exception causing close of session 0x10024db7e280006: Len error 5327937 2018-04-04 14:06:01,362 [myid:] - INFO [NIOServerCxn.Factory: 0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1040] - Closed socket connection for client /127.0.0.1:55078 which had sessionid 0x10024db7e280006 2018-04-04 14:06:01,956 [myid:] - INFO [NIOServerCxn.Factory: 0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@215] - Accepted socket connection from /0:0:0:0:0:0:0:1:55079 2018-04-04 14:06:01,959 [myid:] - INFO [NIOServerCxn.Factory: 0.0.0.0/0.0.0.0:2181:ZooKeeperServer@931] - Client attempting to renew session 0x10024db7e280006 at /0:0:0:0:0:0:0:1:55079 2018-04-04 14:06:01,960 [myid:] - INFO [NIOServerCxn.Factory: 0.0.0.0/0.0.0.0:2181:ZooKeeperServer@683] - Established session 0x10024db7e280006 with negotiated timeout 30000 for client /0:0:0:0:0:0:0:1:55079 2018-04-04 14:06:03,223 [myid:] - WARN [NIOServerCxn.Factory: 0.0.0.0/0.0.0.0:2181:NIOServerCnxn@376] - Unable to read additional data from client sessionid 0x10024db7e280006, likely client has closed socket 2018-04-04 14:06:03,223 [myid:] - INFO [NIOServerCxn.Factory: 0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1040] - Closed socket connection for client /0:0:0:0:0:0:0:1:55079 which had sessionid 0x10024db7e2800 On Wed, Apr 4, 2018 at 11:15 AM Shawn Heisey <apa...@elyograg.org> wrote: > On 4/4/2018 7:14 AM, Doug Turnbull wrote: > > I've been struggling to do a basic upconfig both with embedded and actual > > Zookeeper in Solr 7.2.1 using the zkcli script on OSX. > > > > One variable, I recently upgraded to Java 9. I get slightly different > > errors on Java 8 vs 9 > > <snip> > > > Java 9: > > > > doug@wiz$~/ws/foo(mas) $ > > /Users/doug/bin/solr-7.2.1/server/scripts/cloud-scripts/zkcli.sh -zkhost > > localhost:2181 -cmd upconfig -confdir solr_home/foo/ -confname foo_conf > > WARN - 2018-04-04 09:05:28.194; > > org.apache.zookeeper.ClientCnxn$SendThread; Session 0x100244e8ffb0004 for > > server localhost/127.0.0.1:2181, unexpected error, closing socket > > connection and attempting reconnect > > java.io.IOException: Connection reset by peer > > <snip> > > > Java 8 gives the error > > > > java.io.IOException: Protocol wrong type for socket > > > > WARN - 2018-04-04 09:10:11.879; > > org.apache.zookeeper.ClientCnxn$SendThread; Session 0x10024db7e280002 for > > server localhost/0:0:0:0:0:0:0:1:2181, unexpected error, closing socket > > connection and attempting reconnect > > java.io.IOException: Protocol wrong type for socket > > I'm with Erick on this. These are REALLY weird errors. The stacktraces > for the errors are entirely in ZooKeeper and Java code, not Solr code. > The log for Java 9 does have an entry that mentions Solr classes, but > that's a disconnect after the error, not part of the error. > > Are you getting any corresponding log messages in the ZK server log? > > The ZkCLI class is part of Solr, and does interface to ZK through Solr > internals, but ultimately it's ZK doing the work. > > The ZK client that's in Solr 7.2.1 is version 3.4.10. > > Thanks, > Shawn > > -- CTO, OpenSource Connections Author, Relevant Search http://o19s.com/doug
