[elephant-devel] BDB hanging with many stalled threads

[Leslie P. Polzer]

> The symptoms are as follows: The server uses 99% CPU as hundreds of threads
> continue to run.  It appears that each is trying to access objects in the
> database, but these database operations are all blocking.

Sounds like a deadlock scenario to me.

"Fixed" in unstable.

For stable, use the external deadlock detector: see
DB-BDB::START-DEADLOCK-DETECTOR and the DEADLOCK-DETECT
arg to OPEN-STORE. Be sure to set the correct path to
your db_deadlock binary in my-config.sexp.

  Leslie