I haven't seen that, but I'm curious what OS, Hadoop, ZooKeeper, and Accumulo version you're running. I'm assuming you verified that it was the TabletServer process holding these TCP sockets open using `netstat -p` and cross-referencing the PID with `jps -ml` (or similar)? Are you able to confirm based on the port number that these were Thrift connections or could they be ZooKeeper or Hadoop connections? Do you have any special non-default Accumulo RPC configuration (SSL or SASL)?
On Wed, Jan 24, 2018 at 3:46 PM Adam J. Shook <[email protected]> wrote: > Hello all, > > Has anyone come across an issue with a TabletServer occupying a large > number of ports in a CLOSED_WAIT state? 'Normal' number of used ports on a > 12-node cluster are around 12,000 to 20,000 ports. In one instance, there > were over 68k and it was affecting other applications from getting a free > port and they would fail to start (which is how we found this in the first > place). > > Thank you, > --Adam >
