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Posted to user@hbase.apache.org by A D <as...@live.com> on 2018/03/09 21:19:11 UTC

Understanding log message

All,

I am trying to understand the below message that I see in RS logs:

DEBUG org.apache.hadoop.hbase.ipc.RpcServer: RpcServer.listener,port=16020: DISCONNECTING client x.x.x.x:xxxxx because read count=-1. Number of active connections: 33

Is this disconnect because of ZooKeeper connections limit maxing out?
Is "Number of active connections: 33" message is just information?

Thank you,
AD
askdba@live.com

Re: Understanding log message

Posted by Josh Elser <el...@apache.org>.
There was an HBase RPC connection from a client at the host (identified 
by the IP:port you redacted). IIRC, the "read count=-1" is essentially 
saying that the server tried to read from the socket and read no data 
which means that the client has hung up. There were 33 other outstanding 
HBase RPC connections after this connection was closed.

It has nothing to do with ZooKeeper.

On 3/9/18 4:19 PM, A D wrote:
> All,
> 
> I am trying to understand the below message that I see in RS logs:
> 
> DEBUG org.apache.hadoop.hbase.ipc.RpcServer: RpcServer.listener,port=16020: DISCONNECTING client x.x.x.x:xxxxx because read count=-1. Number of active connections: 33
> 
> Is this disconnect because of ZooKeeper connections limit maxing out?
> Is "Number of active connections: 33" message is just information?
> 
> Thank you,
> AD
> askdba@live.com
>