+1 to looking at the remote end of the socket and see where they're
going/coming to/from. I've seen a few HDFS JIRA issues filed about
sockets left in CLOSED_WAIT.
Lucky you, this is a fun Linux rabbit hole to go down :)
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
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
