Here’s the offending thread. 0x00007f6ecc104b30 is the problem:"gremlin-server-exec-4" #134 prio=5 os_prio=0 tid=0x00007f6d48004800 nid=0x171a4a runnable [0x00007f6cd05ef000]
  java.lang.Thread.State: RUNNABLE
…
  Locked ownable synchronizers:
    - <0x00007f6ecc104b30> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)
    - <0x00007f6ecee7c9b8> (a java.util.concurrent.ThreadPoolExecutor$Worker)These 11 threads are waiting on gremlin-server-exec-4 to give up that lock:gremlin-server-exec-2, gremlin-server-exec-60, gremlin-server-exec-58, gremlin-server-exec-54, gremlin-server-exec-49, gremlin-server-exec-47, gremlin-server-exec-43, gremlin-server-exec-32, gremlin-server-exec-16, gremlin-server-exec-14, gremlin-server-exec-12