END_TEST
START_TEST(task_save_test)
{
int result = 0;
struct task test_task;
struct job test_job;
const char *file_prefix = "prefix";
memset(&test_task, 0, sizeof(test_task));
memset(&test_job, 0, sizeof(test_job));
result = task_save(NULL);
fail_unless(result == PBSE_BAD_PARAMETER, "NULL input fail");
result = task_save(&test_task);
fail_unless(result == PBSE_BAD_PARAMETER, "NULL pointer to owning job fail");
test_task.ti_job = &test_job;
strncpy(test_job.ji_qs.ji_fileprefix,
file_prefix,
sizeof(test_job.ji_qs.ji_fileprefix) - 1);
result = task_save(&test_task);
fail_unless(result == -1, "task_save fail");
}
END_TEST
START_TEST(task_save_test)
{
int result = 0;
struct task test_task;
struct job test_job;
const char *file_prefix = "prefix";
memset(&test_task, 0, sizeof(test_task));
memset(&test_job, 0, sizeof(test_job));
result = task_save(NULL);
fail_unless(result == PBSE_BAD_PARAMETER, "NULL input fail");
result = task_save(&test_task);
fail_unless(result == PBSE_BAD_PARAMETER, "NULL pointer to owning job fail");
strncpy(test_job.ji_qs.ji_fileprefix,
file_prefix,
sizeof(test_job.ji_qs.ji_fileprefix) - 1);
strcpy(test_task.ti_qs.ti_parentjobid, "jobid");
extern job *mock_mom_find_job_return;
mock_mom_find_job_return = NULL;
result = task_save(&test_task);
fail_unless(result == -1, "task_save fail");
}
void scan_for_terminated(void)
{
static char id[] = "scan_for_terminated";
int exiteval = 0;
pid_t pid;
job *pjob;
task *ptask = NULL;
int statloc;
unsigned int momport = 0;
int tcount;
if (LOGLEVEL >= 7)
{
log_record(
PBSEVENT_JOB,
PBS_EVENTCLASS_JOB,
id,
"entered");
}
/* update the latest intelligence about the running jobs; */
/* must be done before we reap the zombies, else we lose the info */
termin_child = 0;
if (mom_get_sample() == PBSE_NONE)
{
pjob = (job *)GET_PRIOR(svr_alljobs);
while (pjob != NULL)
{
mom_set_use(pjob);
pjob = (job *)GET_PRIOR(pjob->ji_alljobs);
}
}
/* Now figure out which task(s) have terminated (are zombies) */
/* NOTE: does a job's tasks include its epilog? */
while ((pid = waitpid(-1, &statloc, WNOHANG)) > 0)
{
pjob = (job *)GET_PRIOR(svr_alljobs);
while (pjob != NULL)
{
/*
* see if process was a child doing a special
* function for MOM
*/
if (LOGLEVEL >= 7)
{
snprintf(log_buffer, 1024, "checking job w/subtask pid=%d (child pid=%d)",
pjob->ji_momsubt,
pid);
LOG_EVENT(
PBSEVENT_DEBUG,
PBS_EVENTCLASS_JOB,
pjob->ji_qs.ji_jobid,
log_buffer);
}
if (pid == pjob->ji_momsubt)
{
if (LOGLEVEL >= 7)
{
snprintf(log_buffer, 1024, "found match with job subtask for pid=%d",
pid);
LOG_EVENT(
PBSEVENT_DEBUG,
PBS_EVENTCLASS_JOB,
pjob->ji_qs.ji_jobid,
log_buffer);
}
break;
}
/* look for task */
ptask = (task *)GET_NEXT(pjob->ji_tasks);
/* locate task with associated process id */
tcount = 0;
while (ptask != NULL)
{
if (ptask->ti_qs.ti_sid == pid)
{
if (LOGLEVEL >= 7)
{
snprintf(log_buffer, 1024, "found match with job task %d for pid=%d",
tcount,
pid);
LOG_EVENT(
PBSEVENT_DEBUG,
PBS_EVENTCLASS_JOB,
pjob->ji_qs.ji_jobid,
log_buffer);
}
break;
}
ptask = (task *)GET_NEXT(ptask->ti_jobtask);
tcount++;
} /* END while (ptask) */
if (ptask != NULL)
{
/* pid match located - break out of job loop */
break;
}
pjob = (job *)GET_PRIOR(pjob->ji_alljobs);
} /* END while (pjob != NULL) */
if (pjob == NULL)
{
if (LOGLEVEL >= 1)
{
sprintf(log_buffer, "pid %d not tracked, exitcode=%d",
pid,
statloc);
log_record(
PBSEVENT_JOB,
PBS_EVENTCLASS_JOB,
id,
log_buffer);
}
continue;
} /* END if (pjob == NULL) */
if (WIFEXITED(statloc))
exiteval = WEXITSTATUS(statloc);
else if (WIFSIGNALED(statloc))
exiteval = WTERMSIG(statloc) + 0x100;
else
exiteval = 1;
if (pid == pjob->ji_momsubt)
{
/* PID matches job mom subtask */
/* NOTE: both ji_momsubt and ji_mompost normally set in routine
preobit_reply() after epilog child is successfully forked */
if (pjob->ji_mompost != NULL)
{
if (pjob->ji_mompost(pjob, exiteval) == 0)
{
/* success */
pjob->ji_mompost = NULL;
}
} /* END if (pjob->ji_mompost != NULL) */
else
{
log_record(
PBSEVENT_JOB,
PBS_EVENTCLASS_JOB,
pjob->ji_qs.ji_jobid,
"job has no postprocessing routine registered");
}
/* clear mom sub-task */
pjob->ji_momsubt = 0;
if(multi_mom)
{
momport = pbs_rm_port;
}
job_save(pjob, SAVEJOB_QUICK, momport);
continue;
} /* END if (pid == pjob->ji_momsubt) */
/* what happens if mom PID is reaped before subtask? */
if (LOGLEVEL >= 2)
{
sprintf(log_buffer, "pid %d harvested for job %s, task %d, exitcode=%d",
pid,
pjob->ji_qs.ji_jobid,
ptask->ti_qs.ti_task,
exiteval);
log_record(
PBSEVENT_JOB,
PBS_EVENTCLASS_JOB,
id,
log_buffer);
}
/* where is job purged? How do we keep job from progressing in state until the obit is sent? */
kill_task(ptask, SIGKILL, 0);
ptask->ti_qs.ti_exitstat = exiteval;
ptask->ti_qs.ti_status = TI_STATE_EXITED;
task_save(ptask);
sprintf(log_buffer, "%s: job %s task %d terminated, sid=%d",
id,
pjob->ji_qs.ji_jobid,
ptask->ti_qs.ti_task,
ptask->ti_qs.ti_sid);
LOG_EVENT(
PBSEVENT_DEBUG,
PBS_EVENTCLASS_JOB,
pjob->ji_qs.ji_jobid,
log_buffer);
exiting_tasks = 1;
} /* END while ((pid = waitpid(-1,&statloc,WNOHANG)) > 0) */
return;
} /* END scan_for_terminated() */
/**
* @brief
* Internal session cpu time decoding routine.
*
* @param[in] job - a job pointer.
*
* @return ulong
* @retval sum of all cpu time consumed for all tasks executed by the job, in seconds,
* adjusted by cputfactor.
*
*/
static unsigned long
cput_sum(job *pjob)
{
ulong cputime = 0;
int i;
int nps = 0;
int taskprocs;
prstatus_t *ps;
prpsinfo_t *pi;
task *ptask;
ulong tcput;
for (ptask = (task *)GET_NEXT(pjob->ji_tasks);
ptask != NULL;
ptask = (task *)GET_NEXT(ptask->ti_jobtask)) {
/* DEAD task */
if (ptask->ti_qs.ti_sid <= 1) {
cputime += ptask->ti_cput;
continue;
}
tcput = 0;
taskprocs = 0;
for (i=0; i<nproc; i++) {
pi = &proc_info[i];
/* is this process part of any task? */
if (ptask->ti_qs.ti_sid != pi->pr_sid)
continue;
nps++;
taskprocs++;
if (pi->pr_state == SZOMB) {
/* use zombie's iff top process */
if ((pi->pr_sid != pi->pr_pid) &&
(pi->pr_ppid != mom_pid))
continue;
tcput += tv(pi->pr_time);
DBPRT(("%s: task %08.8X ses %d pid %d "
"(zomb) %d\n",
__func__, ptask->ti_qs.ti_task,
pi->pr_sid, pi->pr_pid, tcput))
} else {
ps = &proc_status[i];
tcput += (tv(ps->pr_utime) +
tv(ps->pr_stime) +
tv(ps->pr_cutime) +
tv(ps->pr_cstime));
}
DBPRT(("%s: task %08.8X ses %d pid %d cputime %d\n",
__func__, ptask->ti_qs.ti_task,
pi->pr_sid, ps->pr_pid, tcput))
}
if (tcput > ptask->ti_cput)
ptask->ti_cput = tcput;
cputime += ptask->ti_cput;
DBPRT(("%s: task %08.8X cput %lu total %lu\n", __func__,
ptask->ti_qs.ti_task, ptask->ti_cput, cputime))
if (taskprocs == 0) {
sprintf(log_buffer,
"no active process for task %8.8X",
ptask->ti_qs.ti_task);
log_event(PBSEVENT_JOB, PBS_EVENTCLASS_JOB,
LOG_INFO, pjob->ji_qs.ji_jobid,
log_buffer);
ptask->ti_qs.ti_exitstat = 0;
ptask->ti_qs.ti_status = TI_STATE_EXITED;
if (pjob->ji_qs.ji_un.ji_momt.ji_exitstat >= 0)
pjob->ji_qs.ji_un.ji_momt.ji_exitstat = 0;
task_save(ptask);
exiting_tasks = 1;
}
}
void scan_for_terminated(void) /* linux */
{
int exiteval = 0;
pid_t pid;
job *pjob = NULL;
task *ptask = NULL;
int statloc;
unsigned int momport = 0;
#ifdef USESAVEDRESOURCES
int update_stats = TRUE;
#endif /* USESAVEDRESOURCES */
int tcount;
if (LOGLEVEL >= 9)
{
log_record(PBSEVENT_JOB, PBS_EVENTCLASS_JOB, __func__, "entered");
}
/* update the latest intelligence about the running jobs; */
/* must be done before we reap the zombies, else we lose the info */
termin_child = 0;
if (mom_get_sample() == PBSE_NONE)
{
std::list<job *>::reverse_iterator iter;
// get a list of jobs in start time order, first to last
for (iter = alljobs_list.rbegin(); iter != alljobs_list.rend(); iter++)
{
pjob = *iter;
if ((pjob->ji_stats_done == true) ||
(pjob->ji_qs.ji_state < JOB_STATE_RUNNING))
continue;
#ifdef USESAVEDRESOURCES
ptask = (task *)GET_NEXT(pjob->ji_tasks);
/*
** check task with associated process id to see if we are recovering
** after a mom restart where process completed while we were gone
*/
while (ptask != NULL)
{
if (ptask->ti_flags & TI_FLAGS_RECOVERY)
{
if (LOGLEVEL >= 7)
{
snprintf(log_buffer, sizeof(log_buffer), "Found match for recovering job task for sid=%d",
ptask->ti_qs.ti_sid);
log_event(PBSEVENT_DEBUG, PBS_EVENTCLASS_JOB, pjob->ji_qs.ji_jobid, log_buffer);
}
update_stats = FALSE;
break;
}
ptask = (task *)GET_NEXT(ptask->ti_jobtask);
} /* END while (ptask) */
if (update_stats)
{
mom_set_use(pjob);
}
#else
mom_set_use(pjob);
#endif /* USESAVEDRESOURCES */
}
}
/* Now figure out which task(s) have terminated (are zombies) */
/* NOTE: does a job's tasks include its epilog? */
while ((pid = waitpid(-1, &statloc, WNOHANG)) > 0)
{
std::list<job *>::reverse_iterator iter;
if (LOGLEVEL >= 8)
{
sprintf(log_buffer, "Child exited with pid: %d", pid);
log_event(PBSEVENT_JOB, PBS_EVENTCLASS_JOB, __func__, log_buffer);
}
// get a list of jobs in start time order, first to last
for (iter = alljobs_list.rbegin(); iter != alljobs_list.rend(); iter++)
{
pjob = *iter;
/*
* see if process was a child doing a special
* function for MOM
*/
if (pjob->ji_momsubt != 0)
{
if (LOGLEVEL >= 9)
{
snprintf(log_buffer, sizeof(log_buffer),
"Checking to see if exiting child pid '%d' is a match for special mom task with pid=%d",
pid, pjob->ji_momsubt);
log_event(PBSEVENT_DEBUG, PBS_EVENTCLASS_JOB, pjob->ji_qs.ji_jobid, log_buffer);
}
if (pid == pjob->ji_momsubt)
{
if (LOGLEVEL >= 9)
{
snprintf(log_buffer, sizeof(log_buffer),
"The exiting child is a match of special subtask with pid=%d for job %s",
pid, pjob->ji_qs.ji_jobid);
log_event(PBSEVENT_DEBUG, PBS_EVENTCLASS_JOB, pjob->ji_qs.ji_jobid, log_buffer);
}
break;
}
}
/* look for task */
ptask = (task *)GET_NEXT(pjob->ji_tasks);
/* locate task with associated process id */
tcount = 0;
while (ptask != NULL)
{
if ((ptask->ti_qs.ti_sid == pid) &&
(ptask->ti_qs.ti_status != TI_STATE_EXITED))
{
if (LOGLEVEL >= 7)
{
snprintf(log_buffer, sizeof(log_buffer),
"Exiting child matches job task %d for pid=%d",
tcount,
pid);
log_event(PBSEVENT_DEBUG, PBS_EVENTCLASS_JOB, pjob->ji_qs.ji_jobid, log_buffer);
}
break;
}
ptask = (task *)GET_NEXT(ptask->ti_jobtask);
tcount++;
} /* END while (ptask) */
// make sure the task is the top level task for the job to mark the job done
if ((ptask != NULL) &&
(ptask->ti_qs.ti_parenttask == TM_NULL_TASK))
{
/* pid match located - break out of job loop */
pjob->ji_stats_done = true;
break;
}
} /* END while (pjob != NULL) */
if (WIFEXITED(statloc))
exiteval = WEXITSTATUS(statloc);
else if (WIFSIGNALED(statloc))
exiteval = WTERMSIG(statloc) + 0x100;
else
exiteval = 1;
if (pjob == NULL)
{
if (LOGLEVEL >= 1)
{
sprintf(log_buffer, "Child pid %d is not part of a job, statloc=%d, exitval=%d",
pid,
statloc,
exiteval);
log_record(PBSEVENT_JOB, PBS_EVENTCLASS_JOB, __func__, log_buffer);
}
continue;
} /* END if (pjob == NULL) */
if (pid == pjob->ji_momsubt)
{
/* PID matches job mom subtask */
/* NOTE: both ji_momsubt and ji_mompost normally set in routine
preobit_reply() after epilog child is successfully forked */
if (pjob->ji_mompost != NULL)
{
if (pjob->ji_mompost(pjob, exiteval) == 0)
{
/* success */
pjob->ji_mompost = NULL;
}
} /* END if (pjob->ji_mompost != NULL) */
else if (LOGLEVEL >= 8) // This is a debug statement
{
log_record(
PBSEVENT_JOB,
PBS_EVENTCLASS_JOB,
pjob->ji_qs.ji_jobid,
"Job has no postprocessing routine registered");
}
/* clear mom sub-task */
pjob->ji_momsubt = 0;
if (multi_mom)
{
momport = pbs_rm_port;
}
job_save(pjob, SAVEJOB_QUICK, momport);
continue;
} /* END if (pid == pjob->ji_momsubt) */
if (ptask == NULL)
continue;
/* what happens if mom PID is reaped before subtask? */
if (LOGLEVEL >= 2)
{
sprintf(log_buffer, "pid %d harvested for job %s, task %d, exitcode=%d",
pid,
pjob->ji_qs.ji_jobid,
ptask->ti_qs.ti_task,
exiteval);
log_record(PBSEVENT_JOB, PBS_EVENTCLASS_JOB, __func__, log_buffer);
}
/* where is job purged? How do we keep job from progressing in state until the obit is sent? */
kill_task(pjob, ptask, SIGKILL, 0);
ptask->ti_qs.ti_exitstat = exiteval;
ptask->ti_qs.ti_status = TI_STATE_EXITED;
task_save(ptask);
sprintf(log_buffer, "%s: job %s task %d terminated, sid=%d",
__func__,
pjob->ji_qs.ji_jobid,
ptask->ti_qs.ti_task,
ptask->ti_qs.ti_sid);
log_event(PBSEVENT_DEBUG, PBS_EVENTCLASS_JOB, pjob->ji_qs.ji_jobid, log_buffer);
exiting_tasks = 1;
} /* END while ((pid = waitpid(-1,&statloc,WNOHANG)) > 0) */
return;
} /* END scan_for_terminated() */
/**
* @brief wait_action
* Wait for a task that has terminated or a socket that is ready to read.
* Mark any terminated task as Exiting and do network processing on
* any ready socket.
*
* @return void
*/
void
wait_action(void)
{
static char id[] = "wait_action";
int rc = 0;
int hNum = 0;
HANDLE hArray[MAXIMUM_WAIT_OBJECTS+1] = {INVALID_HANDLE_VALUE};
HANDLE hProc = INVALID_HANDLE_VALUE;
extern HANDLE hStop; /* mutex: quit when released */
int ecode = -1;
job *pjob = NULL;
task *ptask = NULL;
int waittime = 500;
extern int mom_run_state;
struct work_task *p_wtask = NULL;
HANDLE pid = INVALID_HANDLE_VALUE;
/* Check for non job-related tasks like periodic hook tasks */
while (1) {
if ((pid = waitpid((HANDLE)-1, &ecode, WNOHANG)) == (HANDLE)-1) {
if (errno == EINTR) {
continue;
} else {
break;
}
} else if (pid == 0) {
break;
}
p_wtask = (struct work_task *)GET_NEXT(task_list_event);
while (p_wtask) {
if ((p_wtask->wt_type == WORK_Deferred_Child) &&
((HANDLE)p_wtask->wt_event == pid)) {
p_wtask->wt_type = WORK_Deferred_Cmp;
p_wtask->wt_aux = (int)ecode; /* exit status */
svr_delay_entry++; /* see next_task() */
}
p_wtask = (struct work_task *)GET_NEXT(p_wtask->wt_linkall);
}
}
for (;;) {
hNum = 0;
if (mom_run_state && hStop != NULL) /* add mutex to array */
hArray[hNum++] = hStop;
pjob = (job *)GET_NEXT(svr_alljobs);
while (pjob) {
/*
* see if process was a child doing a special
* function for MOM
*/
if ((pjob->ji_momsubt != NULL) &&
(pjob->ji_momsubt != INVALID_HANDLE_VALUE) &&
(pjob->ji_mompost != NULL)) {
hArray[hNum++] = pjob->ji_momsubt;
}
/*
* process tasks
*/
ptask = (task *)GET_NEXT(pjob->ji_tasks);
while (ptask) {
if ((ptask->ti_hProc != NULL) &&
(ptask->ti_hProc != INVALID_HANDLE_VALUE))
hArray[hNum++] = ptask->ti_hProc;
if (hNum > MAXIMUM_WAIT_OBJECTS)
break;
ptask = (task *)GET_NEXT(ptask->ti_jobtask);
}
if (hNum > MAXIMUM_WAIT_OBJECTS) {
DBPRT(("%s: %d more than MAX\n", id, hNum))
hNum = MAXIMUM_WAIT_OBJECTS;
break;
}
pjob = (job *)GET_NEXT(pjob->ji_alljobs);
}
if (hNum == 0) /* nothing to wait for */
break;
rc = WaitForMultipleObjects(hNum, hArray,
FALSE, waittime);
if (rc == WAIT_TIMEOUT) /* nobody is done */
break;
else if (rc == WAIT_FAILED) {
log_err(-1, id, "WaitForMultipleObjects");
break;
}
waittime = 0; /* only wait the first time */
rc -= WAIT_OBJECT_0; /* which object was it? */
assert(0 <= rc && rc < hNum);
if (rc == 0 && mom_run_state && hStop != NULL) { /* got mutex */
mom_run_state = 0; /* shutdown */
continue;
}
/*
** It was a process finishing. Find which one.
*/
hProc = hArray[rc];
rc = GetExitCodeProcess(hProc, &ecode);
if (rc == 0) {
log_err(-1, id, "GetExitCodeProcess");
ecode = 99;
} else if (rc == STILL_ACTIVE) /* shouldn't happen */
break;
CloseHandle(hProc);
/* find which process finished */
pjob = (job *)GET_NEXT(svr_alljobs);
while (pjob) {
if (pjob->ji_momsubt == hProc)
break;
ptask = (task *)GET_NEXT(pjob->ji_tasks);
while (ptask) {
if (ptask->ti_hProc == hProc)
break;
ptask = (task *)GET_NEXT(ptask->ti_jobtask);
}
if (ptask)
break;
pjob = (job *)GET_NEXT(pjob->ji_alljobs);
}
assert(pjob != NULL);
if (pjob->ji_momsubt == hProc) {
pjob->ji_momsubt = NULL;
if (pjob->ji_mompost) {
pjob->ji_mompost(pjob, ecode);
/* After epilogue, get rid of any HOSTFILE */
if (pjob->ji_mompost == send_obit) {
char file[MAXPATHLEN+1];
(void)sprintf(file, "%s/aux/%s",
pbs_conf.pbs_home_path,
pjob->ji_qs.ji_jobid);
(void)unlink(file);
}
pjob->ji_mompost = 0;
}
(void)job_save(pjob, SAVEJOB_QUICK);
continue;
}
DBPRT(("%s: task %d pid %d exit value %d\n", id,
ptask->ti_qs.ti_task, ptask->ti_qs.ti_sid,
ecode))
ptask->ti_hProc = NULL;
ptask->ti_qs.ti_exitstat = ecode;
ptask->ti_qs.ti_status = TI_STATE_EXITED;
ptask->ti_qs.ti_sid = 0;
(void)task_save(ptask);
sprintf(log_buffer, "task %d terminated", ptask->ti_qs.ti_task);
log_event(PBSEVENT_DEBUG, PBS_EVENTCLASS_JOB, LOG_DEBUG,
pjob->ji_qs.ji_jobid, log_buffer);
exiting_tasks = 1;
}
connection_idlecheck();
}
/**
* @brief
* Internal session cpu time decoding routine.
*
* @param[in] job - a job pointer.
*
* @return ulong
* @retval sum of all cpu time consumed for all tasks executed by the job, in seconds,
* adjusted by cputfactor.
*
*/
static unsigned long
cput_sum(job *pjob)
{
ulong cputime, addtime;
int i;
int nps = 0;
int taskprocs;
psinfo_t *pi;
task *ptask;
ulong tcput;
cputime = 0;
for (ptask = (task *)GET_NEXT(pjob->ji_tasks);
ptask != NULL;
ptask = (task *)GET_NEXT(ptask->ti_jobtask)) {
/* DEAD task */
if (ptask->ti_qs.ti_sid <= 1) {
cputime += ptask->ti_cput;
continue;
}
tcput = 0;
taskprocs = 0;
for (i=0; i<nproc; i++) {
pi = &proc_info[i];
/* is this process part of the task? */
if (ptask->ti_qs.ti_sid != pi->pr_sid)
continue;
nps++;
taskprocs++;
if (pi->pr_nlwp == 0) { /* zombie */
if ((pi->pr_sid != pi->pr_pid) &&
(pi->pr_ppid != mom_pid))
continue;
/* top of session/job, record it */
tcput += tv(pi->pr_time);
DBPRT(("%s: task %08.8X ses %d pid %d "
"(zombie) cputime %lu\n", __func__,
ptask->ti_qs.ti_task,
pi->pr_sid, pi->pr_pid, tcput))
} else {
addtime = tv(pi->pr_time) + tv(pi->pr_ctime);
tcput += addtime;
DBPRT(("%s: task %08.8X ses %d pid %d "
"cputime %lu\n", __func__,
ptask->ti_qs.ti_task, pi->pr_sid,
pi->pr_pid, tcput))
}
}
if (tcput > ptask->ti_cput)
ptask->ti_cput = tcput;
cputime += ptask->ti_cput;
DBPRT(("%s: task %08.8X cput %lu total %lu\n", __func__,
ptask->ti_qs.ti_task, ptask->ti_cput, cputime))
if (taskprocs == 0) {
sprintf(log_buffer,
"no active process for task %8.8X",
ptask->ti_qs.ti_task);
log_event(PBSEVENT_JOB, PBS_EVENTCLASS_JOB,
LOG_INFO, pjob->ji_qs.ji_jobid,
log_buffer);
ptask->ti_qs.ti_status = TI_STATE_EXITED;
task_save(ptask);
exiting_tasks = 1;
}
}