Hi,
Since a few weeks, we are having the following recurring warnings (tens of
megabytes) :
02-07-2017 15:17:39 - WARN - org.apache.zookeeper.ClientCnxn run - Session
0x159d0669ef70043 for server 10.91.176.82/10.91.176.82:2181, unexpected
error, closing socket connection and attempting reconnect
java.lang.IllegalStateException: Can't overwrite cause with
java.lang.IllegalStateException: Illegal access: this web application
instance has been stopped already. Could not load
org.apache.zookeeper.proto.SetWatches. The eventual following stack trace
is caused by an error thrown for debugging purposes as well as to attempt
to terminate the thread which caused the illegal access, and has no
functional impact.
at java.lang.Throwable.initCause(Throwable.java:457)
at
org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1305)
at
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1185)
at
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1146)
at
org.apache.zookeeper.ClientCnxn$SendThread.primeConnection(ClientCnxn.java:926)
at
org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:363)
at
org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1141)
Caused by: java.lang.ClassNotFoundException
at
org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1304)
... 5 more
Apart from this warning, we have no other errors in the log and everything
is running fine. Do you have any idea where it might come from ?
Best,
Cyrille SAVELIEF
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