/**
* attempt_delete()
* deletes a job differently depending on the job's state
*
* @return TRUE if the job was deleted, FALSE if skipped
* @param pjob - a pointer to the job being handled
*/
int attempt_delete(
void *j) /* I */
{
int skipped = FALSE;
struct work_task *pwtold;
struct work_task *pwtnew;
job *pjob;
/* job considered deleted if null */
if (j == NULL)
return(TRUE);
pjob = (job *)j;
if (pjob->ji_qs.ji_state == JOB_STATE_TRANSIT)
{
/*
* Find pid of router from existing work task entry,
* then establish another work task on same child.
* Next, signal the router and wait for its completion;
*/
pwtold = (struct work_task *)GET_NEXT(pjob->ji_svrtask);
while (pwtold != NULL)
{
if ((pwtold->wt_type == WORK_Deferred_Child) ||
(pwtold->wt_type == WORK_Deferred_Cmp))
{
kill((pid_t)pwtold->wt_event, SIGTERM);
pjob->ji_qs.ji_substate = JOB_SUBSTATE_ABORT;
}
pwtold = (struct work_task *)GET_NEXT(pwtold->wt_linkobj);
}
skipped = TRUE;
return(!skipped);
} /* END if (pjob->ji_qs.ji_state == JOB_SUBSTATE_TRANSIT) */
else if (pjob->ji_qs.ji_substate == JOB_SUBSTATE_PRERUN)
{
/* we'll wait for the mom to get this job, then delete it */
skipped = TRUE;
} /* END if (pjob->ji_qs.ji_substate == JOB_SUBSTATE_PRERUN) */
else if (pjob->ji_qs.ji_state == JOB_STATE_RUNNING)
{
/* set up nanny */
if (!has_job_delete_nanny(pjob))
{
apply_job_delete_nanny(pjob, time_now + 60);
/* need to issue a signal to the mom, but we don't want to sent an ack to the
* client when the mom replies */
issue_signal(pjob, "SIGTERM", post_delete, NULL);
}
if ((pjob->ji_qs.ji_svrflags & JOB_SVFLG_CHECKPOINT_FILE) != 0)
{
/* job has restart file at mom, change restart comment if failed */
change_restart_comment_if_needed(pjob);
}
return(!skipped);
} /* END if (pjob->ji_qs.ji_state == JOB_STATE_RUNNING) */
if ((pjob->ji_qs.ji_svrflags & JOB_SVFLG_CHECKPOINT_FILE) != 0)
{
/* job has restart file at mom, change restart comment if failed */
change_restart_comment_if_needed(pjob);
/* job has restart file at mom, do end job processing */
svr_setjobstate(pjob, JOB_STATE_EXITING, JOB_SUBSTATE_EXITING);
pjob->ji_momhandle = -1;
/* force new connection */
pwtnew = set_task(WORK_Immed, 0, on_job_exit, (void *)pjob);
if (pwtnew)
{
append_link(&pjob->ji_svrtask, &pwtnew->wt_linkobj, pwtnew);
}
}
else if ((pjob->ji_qs.ji_svrflags & JOB_SVFLG_StagedIn) != 0)
{
/* job has staged-in file, should remove them */
remove_stagein(pjob);
job_abt(&pjob, NULL);
}
else
{
/*
* the job is not transitting (though it may have been) and
* is not running, so put in into a complete state.
*/
struct work_task *ptask;
struct pbs_queue *pque;
int KeepSeconds = 0;
svr_setjobstate(pjob, JOB_STATE_COMPLETE, JOB_SUBSTATE_COMPLETE);
if ((pque = pjob->ji_qhdr) && (pque != NULL))
{
pque->qu_numcompleted++;
}
KeepSeconds = attr_ifelse_long(
&pque->qu_attr[(int)QE_ATR_KeepCompleted],
&server.sv_attr[(int)SRV_ATR_KeepCompleted],
0);
ptask = set_task(WORK_Timed, time_now + KeepSeconds, on_job_exit, pjob);
if (ptask != NULL)
{
append_link(&pjob->ji_svrtask, &ptask->wt_linkobj, ptask);
}
}
return(!skipped);
} /* END attempt_delete() */
void req_deletejob(
struct batch_request *preq) /* I */
{
job *pjob;
struct work_task *pwtold;
struct work_task *pwtnew;
struct work_task *pwtcheck;
int rc;
char *sigt = "SIGTERM";
char *Msg = NULL;
/* check if we are getting a purgecomplete from scheduler */
if ((preq->rq_extend != NULL) &&
!strncmp(preq->rq_extend,PURGECOMP,strlen(PURGECOMP)))
{
/*
* purge_completed_jobs will respond with either an ack or reject
*/
purge_completed_jobs(preq);
return;
}
/* The way this is implemented, if the user enters the command "qdel -p <jobid>",
* they can then delete jobs other than their own since the authorization
* checks are made below in chk_job_request. This should probably be fixed.
*/
if (forced_jobpurge(preq) != 0)
{
return;
}
/* NOTE: should support rq_objname={<JOBID>|ALL|<name:<JOBNAME>} */
/* NYI */
pjob = chk_job_request(preq->rq_ind.rq_delete.rq_objname, preq);
if (pjob == NULL)
{
/* NOTE: chk_job_request() will issue req_reject() */
return;
}
if (preq->rq_extend != NULL)
{
if (strncmp(preq->rq_extend, deldelaystr, strlen(deldelaystr)) &&
strncmp(preq->rq_extend, delasyncstr, strlen(delasyncstr)) &&
strncmp(preq->rq_extend, delpurgestr, strlen(delpurgestr)))
{
/* have text message in request extension, add it */
Msg = preq->rq_extend;
/*
* Message capability is only for operators and managers.
* Check if request is authorized
*/
if ((preq->rq_perm & (ATR_DFLAG_OPRD | ATR_DFLAG_OPWR |
ATR_DFLAG_MGRD | ATR_DFLAG_MGWR)) == 0)
{
req_reject(PBSE_PERM, 0, preq, NULL,
"must have operator or manager privilege to use -m parameter");
return;
}
}
}
if (pjob->ji_qs.ji_state == JOB_STATE_TRANSIT)
{
/*
* Find pid of router from existing work task entry,
* then establish another work task on same child.
* Next, signal the router and wait for its completion;
*/
pwtold = (struct work_task *)GET_NEXT(pjob->ji_svrtask);
while (pwtold != NULL)
{
if ((pwtold->wt_type == WORK_Deferred_Child) ||
(pwtold->wt_type == WORK_Deferred_Cmp))
{
pwtnew = set_task(
pwtold->wt_type,
pwtold->wt_event,
post_delete_route,
preq);
if (pwtnew != NULL)
{
/*
* reset type in case the SIGCHLD came
* in during the set_task; it makes
* sure that next_task() will find the
* new entry.
*/
pwtnew->wt_type = pwtold->wt_type;
pwtnew->wt_aux = pwtold->wt_aux;
kill((pid_t)pwtold->wt_event, SIGTERM);
pjob->ji_qs.ji_substate = JOB_SUBSTATE_ABORT;
return; /* all done for now */
}
else
{
req_reject(PBSE_SYSTEM, 0, preq, NULL, NULL);
return;
}
}
pwtold = (struct work_task *)GET_NEXT(pwtold->wt_linkobj);
}
/* should never get here ... */
log_err(-1, "req_delete", "Did not find work task for router");
req_reject(PBSE_INTERNAL, 0, preq, NULL, NULL);
return;
}
if (pjob->ji_qs.ji_substate == JOB_SUBSTATE_PRERUN ||
pjob->ji_qs.ji_substate == JOB_SUBSTATE_RERUN ||
pjob->ji_qs.ji_substate == JOB_SUBSTATE_RERUN1 ||
pjob->ji_qs.ji_substate == JOB_SUBSTATE_RERUN2 ||
pjob->ji_qs.ji_substate == JOB_SUBSTATE_RERUN3 )
{
/* If JOB_SUBSTATE_PRERUN being sent to MOM, wait till she gets it going */
/* retry in one second */
/* If JOB_SUBSTATE_RERUN, RERUN1, RERUN2 or RERUN3 the
job is being requeued. Wait until finished */
static time_t cycle_check_when = 0;
static char cycle_check_jid[PBS_MAXSVRJOBID + 1];
if (cycle_check_when != 0)
{
if (!strcmp(pjob->ji_qs.ji_jobid, cycle_check_jid) &&
(time_now - cycle_check_when > 10))
{
/* state not updated after 10 seconds */
/* did the mom ever get it? delete it anyways... */
cycle_check_jid[0] = '\0';
cycle_check_when = 0;
goto jump;
}
if (time_now - cycle_check_when > 20)
{
/* give up after 20 seconds */
cycle_check_jid[0] = '\0';
cycle_check_when = 0;
}
} /* END if (cycle_check_when != 0) */
if (cycle_check_when == 0)
{
/* new PRERUN job located */
cycle_check_when = time_now;
strcpy(cycle_check_jid, pjob->ji_qs.ji_jobid);
}
sprintf(log_buffer, "job cannot be deleted, state=PRERUN, requeuing delete request");
log_event(
PBSEVENT_JOB,
PBS_EVENTCLASS_JOB,
pjob->ji_qs.ji_jobid,
log_buffer);
pwtnew = set_task(
WORK_Timed,
time_now + 1,
post_delete_route,
preq);
if (pwtnew == 0)
req_reject(PBSE_SYSTEM, 0, preq, NULL, NULL);
return;
} /* END if (pjob->ji_qs.ji_substate == JOB_SUBSTATE_PRERUN) */
jump:
/*
* Log delete and if requesting client is not job owner, send mail.
*/
sprintf(log_buffer, "requestor=%s@%s",
preq->rq_user,
preq->rq_host);
/* NOTE: should annotate accounting record with extend message (NYI) */
account_record(PBS_ACCT_DEL, pjob, log_buffer);
sprintf(log_buffer, msg_manager,
msg_deletejob,
preq->rq_user,
preq->rq_host);
log_event(
PBSEVENT_JOB,
PBS_EVENTCLASS_JOB,
pjob->ji_qs.ji_jobid,
log_buffer);
/* NOTE: should incorporate job delete message */
if (Msg != NULL)
{
/* have text message in request extension, add it */
strcat(log_buffer, "\n");
strcat(log_buffer, Msg);
}
if ((svr_chk_owner(preq, pjob) != 0) &&
!has_job_delete_nanny(pjob))
{
/* only send email if owner did not delete job and job deleted
has not been previously attempted */
svr_mailowner(pjob, MAIL_DEL, MAIL_FORCE, log_buffer);
/*
* If we sent mail and already sent the extra message
* then reset message so we don't trigger a redundant email
* in job_abt()
*/
if (Msg != NULL)
{
Msg = NULL;
}
}
if ((pjob->ji_qs.ji_svrflags & JOB_SVFLG_CHECKPOINT_FILE) != 0)
{
/* job has restart file at mom, change restart comment if failed */
change_restart_comment_if_needed(pjob);
}
if (pjob->ji_qs.ji_state == JOB_STATE_RUNNING)
{
/*
* setup a nanny task to make sure the job is actually deleted (see the
* comments at job_delete_nanny()).
*/
if (has_job_delete_nanny(pjob))
{
req_reject(PBSE_IVALREQ, 0, preq, NULL, "job cancel in progress");
return;
}
apply_job_delete_nanny(pjob, time_now + 60);
/* check if we are getting a asynchronous delete */
if ((preq->rq_extend != NULL) &&
!strncmp(preq->rq_extend,DELASYNC,strlen(DELASYNC)))
{
struct batch_request *preq_tmp = NULL;
/*
* Respond with an ack now instead of after MOM processing
* Create a new batch request and fill it in. It will be freed by reply_ack
*/
snprintf(log_buffer,sizeof(log_buffer), "Deleting job asynchronously");
log_event(PBSEVENT_JOB,PBS_EVENTCLASS_JOB,pjob->ji_qs.ji_jobid,log_buffer);
preq_tmp = alloc_br(PBS_BATCH_DeleteJob);
preq_tmp->rq_perm = preq->rq_perm;
preq_tmp->rq_ind.rq_manager.rq_cmd = preq->rq_ind.rq_manager.rq_cmd;
preq_tmp->rq_ind.rq_manager.rq_objtype = preq->rq_ind.rq_manager.rq_objtype;
preq_tmp->rq_fromsvr = preq->rq_fromsvr;
preq_tmp->rq_extsz = preq->rq_extsz;
preq_tmp->rq_conn = preq->rq_conn;
memcpy(preq_tmp->rq_ind.rq_manager.rq_objname,
preq->rq_ind.rq_manager.rq_objname, PBS_MAXSVRJOBID + 1);
memcpy(preq_tmp->rq_user, preq->rq_user, PBS_MAXUSER + 1);
memcpy(preq_tmp->rq_host, preq->rq_host, PBS_MAXHOSTNAME + 1);
reply_ack(preq_tmp);
preq->rq_noreply = TRUE; /* set for no more replies */
}
/* make a cleanup task if set */
if ((server.sv_attr[SRV_ATR_JobForceCancelTime].at_flags & ATR_VFLAG_SET) &&
(server.sv_attr[SRV_ATR_JobForceCancelTime].at_val.at_long > 0))
{
pwtcheck = set_task(
WORK_Timed,
time_now + server.sv_attr[SRV_ATR_JobForceCancelTime].at_val.at_long,
ensure_deleted,
preq);
if (pwtcheck != NULL)
append_link(&pjob->ji_svrtask, &pwtcheck->wt_linkobj, pwtcheck);
}
/*
* Send signal request to MOM. The server will automagically
* pick up and "finish" off the client request when MOM replies.
*/
if ((rc = issue_signal(pjob, sigt, post_delete_mom1, preq)))
{
/* cant send to MOM */
req_reject(rc, 0, preq, NULL, NULL);
}
/* normally will ack reply when mom responds */
sprintf(log_buffer, msg_delrunjobsig,
sigt);
LOG_EVENT(
PBSEVENT_JOB,
PBS_EVENTCLASS_JOB,
pjob->ji_qs.ji_jobid,
log_buffer);
return;
} /* END if (pjob->ji_qs.ji_state == JOB_STATE_RUNNING) */
/* make a cleanup task if set */
if ((server.sv_attr[SRV_ATR_JobForceCancelTime].at_flags & ATR_VFLAG_SET) &&
(server.sv_attr[SRV_ATR_JobForceCancelTime].at_val.at_long > 0))
{
pwtcheck = set_task(
WORK_Timed,
time_now + server.sv_attr[SRV_ATR_JobForceCancelTime].at_val.at_long,
ensure_deleted,
preq);
if (pwtcheck != NULL)
append_link(&pjob->ji_svrtask, &pwtcheck->wt_linkobj, pwtcheck);
}
/* if configured, and this job didn't have a slot limit hold, free a job
* held with the slot limit hold */
if ((server.sv_attr[SRV_ATR_MoabArrayCompatible].at_val.at_long != FALSE) &&
((pjob->ji_wattr[JOB_ATR_hold].at_val.at_long & HOLD_l) == FALSE))
{
if ((pjob->ji_arraystruct != NULL) &&
(pjob->ji_is_array_template == FALSE))
{
int i;
int newstate;
int newsub;
job *tmp;
job_array *pa = pjob->ji_arraystruct;
for (i = 0; i < pa->ai_qs.array_size; i++)
{
if (pa->jobs[i] == NULL)
continue;
tmp = (job *)pa->jobs[i];
if (tmp->ji_wattr[JOB_ATR_hold].at_val.at_long & HOLD_l)
{
tmp->ji_wattr[JOB_ATR_hold].at_val.at_long &= ~HOLD_l;
if (tmp->ji_wattr[JOB_ATR_hold].at_val.at_long == 0)
{
tmp->ji_wattr[JOB_ATR_hold].at_flags &= ~ATR_VFLAG_SET;
}
svr_evaljobstate(tmp, &newstate, &newsub, 1);
svr_setjobstate(tmp, newstate, newsub);
job_save(tmp, SAVEJOB_FULL, 0);
break;
}
}
}
} /* END MoabArrayCompatible check */
if ((pjob->ji_qs.ji_svrflags & JOB_SVFLG_CHECKPOINT_FILE) != 0)
{
/* job has restart file at mom, do end job processing */
svr_setjobstate(pjob, JOB_STATE_EXITING, JOB_SUBSTATE_EXITING);
pjob->ji_momhandle = -1;
/* force new connection */
pwtnew = set_task(WORK_Immed, 0, on_job_exit, (void *)pjob);
if (pwtnew)
{
append_link(&pjob->ji_svrtask, &pwtnew->wt_linkobj, pwtnew);
}
}
else if ((pjob->ji_qs.ji_svrflags & JOB_SVFLG_StagedIn) != 0)
{
/* job has staged-in file, should remove them */
remove_stagein(pjob);
job_abt(&pjob, Msg);
}
else
{
/*
* the job is not transitting (though it may have been) and
* is not running, so put in into a complete state.
*/
struct work_task *ptask;
struct pbs_queue *pque;
int KeepSeconds = 0;
svr_setjobstate(pjob, JOB_STATE_COMPLETE, JOB_SUBSTATE_COMPLETE);
if ((pque = pjob->ji_qhdr) && (pque != NULL))
{
pque->qu_numcompleted++;
}
KeepSeconds = attr_ifelse_long(
&pque->qu_attr[QE_ATR_KeepCompleted],
&server.sv_attr[SRV_ATR_KeepCompleted],
0);
ptask = set_task(WORK_Timed, time_now + KeepSeconds, on_job_exit, pjob);
if (ptask != NULL)
{
append_link(&pjob->ji_svrtask, &ptask->wt_linkobj, ptask);
}
} /* END else if ((pjob->ji_qs.ji_svrflags & JOB_SVFLG_CHECKPOINT_FILE) != 0) */
reply_ack(preq);
return;
} /* END req_deletejob() */
