php - Worker process performing SOAP calls generates endless CLOSE_WAIT file descriptors -

i'm running php queue worker process processes jobs in turn create soap clients , perform soap requests. i'll try outline pseudo-code possible.

jobs , parameters saved database instantiated worker. in simplified form, worker looks this:

while(true) {     $job = initiatefromdatabase($id);     $job->handle() } 

for job soapclient instantiated , soap call performed. results saved database.

the problem process pretty hit open file descriptor limit. after inspection lsof -a -p <worker_pid> there hundreds of tcp descriptors hanging in close_wait.

i've done intensive research , conclusion there no way explicitly close soap connection (and underlying) socket.

the way clear hundreds of close_wait descriptors kill worker process.

how can make sure can run worker larger periods of time , make close_wait descriptors disappear after soapclient instance not used anymore?

thanks in advance.