Logo Search packages:      
Sourcecode: pbs-drmaa version File versions

job.c

/* $Id: job.c 22 2011-08-26 10:23:06Z mmamonski $ */
/*
 *  FedStage DRMAA for PBS Pro
 *  Copyright (C) 2006-2009  FedStage Systems
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifdef HAVE_CONFIG_H
#     include <config.h>
#endif

#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include <drmaa_utils/drmaa.h>
#include <drmaa_utils/drmaa_util.h>
#include <pbs_error.h>
#include <pbs_ifl.h>

#include <pbs_drmaa/job.h>
#include <pbs_drmaa/log_reader.h>
#include <pbs_drmaa/pbs_attrib.h>
#include <pbs_drmaa/session.h>
#include <pbs_drmaa/util.h>

#ifndef lint
static char rcsid[]
#     ifdef __GNUC__
            __attribute__ ((unused))
#     endif
      = "$Id: job.c 22 2011-08-26 10:23:06Z mmamonski $";
#endif


static void
pbsdrmaa_job_control( fsd_job_t *self, int action );

static void
pbsdrmaa_job_update_status( fsd_job_t *self );

static void
pbsdrmaa_job_on_missing( fsd_job_t *self );

void
pbsdrmaa_job_on_missing_standard( fsd_job_t *self );

void
pbsdrmaa_job_on_missing_log_based( fsd_job_t *self );

static void
pbsdrmaa_job_update( fsd_job_t *self, struct batch_status* );

bool
pbsdrmaa_job_update_status_accounting( fsd_job_t *self );


fsd_job_t *
pbsdrmaa_job_new( char *job_id )
{
      pbsdrmaa_job_t *self = (pbsdrmaa_job_t*)fsd_job_new( job_id );
      fsd_realloc( self, 1, pbsdrmaa_job_t );
      self->super.control = pbsdrmaa_job_control;
      self->super.update_status = pbsdrmaa_job_update_status;
      self->super.on_missing = pbsdrmaa_job_on_missing;
      self->update = pbsdrmaa_job_update;
      return (fsd_job_t*)self;
}


static void
pbsdrmaa_job_control( fsd_job_t *self, int action )
{
      volatile bool conn_lock = false;
      pbsdrmaa_session_t *session = (pbsdrmaa_session_t*)self->session;
      const char *job_id = self->job_id;
      const char *apicall = NULL;
      int rc = PBSE_NONE;

      fsd_log_enter(( "({job_id=%s}, action=%d)",
                  self->job_id, action ));

      TRY
       {
            int try_count;
            const int max_tries = 3;

            conn_lock = fsd_mutex_lock( &self->session->drm_connection_mutex );

            /*TODO reconnect */
            for( try_count=0;  try_count < max_tries;  try_count++ )
             {
                  switch( action )
                   {
                        /*
                         * We cannot know whether we did suspend job
                         * in other way than remembering this inside DRMAA session.
                         */
                        case DRMAA_CONTROL_SUSPEND:
                              apicall = "pbs_sigjob";
                              rc = pbs_sigjob( session->pbs_conn, (char*)job_id,
                                          "SIGSTOP", NULL );
                              fsd_log_info(("pbs_sigjob(%s, SIGSTOP) =%d", job_id, rc));
                              if( rc == PBSE_NONE )
                                    self->flags |= FSD_JOB_SUSPENDED;
                              break;
                        case DRMAA_CONTROL_RESUME:
                              apicall = "pbs_sigjob";
                              rc = pbs_sigjob( session->pbs_conn, (char*)job_id,
                                          "SIGCONT", NULL );
                              fsd_log_info(("pbs_sigjob(%s, SIGCONT) =%d", job_id, rc));
                              if( rc == PBSE_NONE )
                                    self->flags &= ~FSD_JOB_SUSPENDED;
                              break;
                        case DRMAA_CONTROL_HOLD:
                              apicall = "pbs_holdjob";
                              rc = pbs_holdjob( session->pbs_conn, (char*)job_id,
                                          USER_HOLD, NULL );
                              fsd_log_info(("pbs_sigjob(%s, SIGHOLD) =%d", job_id, rc));
                              if( rc == PBSE_NONE )
                                    self->flags |= FSD_JOB_HOLD;
                              break;
                        case DRMAA_CONTROL_RELEASE:
                              apicall = "pbs_rlsjob";
                              rc = pbs_rlsjob( session->pbs_conn, (char*)job_id,
                                          USER_HOLD, NULL );
                              fsd_log_info(("pbs_rlsjob(%s) =%d", job_id, rc));
                              if( rc == PBSE_NONE )
                                    self->flags &= FSD_JOB_HOLD;
                              break;
                        case DRMAA_CONTROL_TERMINATE:
                              apicall = "pbs_deljob";
                              rc = pbs_deljob( session->pbs_conn, (char*)job_id, NULL );
                              fsd_log_info(("pbs_deljob(%s) =%d", job_id, rc));
                              /* Torque:
                               * deldelay=N -- delay between SIGTERM and SIGKILL (default 0) */
                              if( rc == PBSE_NONE )
                               {
                                    self->flags &= FSD_JOB_TERMINATED_MASK;
                                    if( (self->flags & FSD_JOB_TERMINATED) == 0 )
                                          self->flags |= FSD_JOB_TERMINATED | FSD_JOB_ABORTED;
                               }
                              break;
                   }

                  if( rc == PBSE_NONE )
                        break;
                  else if( rc == PBSE_INTERNAL )
                   {
                        /*
                         * In PBS Pro pbs_sigjob raises internal server error (PBSE_INTERNAL)
                         * when job just changed its state to running.
                         */
                        fsd_log_debug(( "repeating request (%d of %d)",
                                          try_count+2, max_tries ));
                        sleep( 1 );
                   }
                  else
                        pbsdrmaa_exc_raise_pbs( apicall );
             } /* end for */
       }
      FINALLY
       {
            if( conn_lock )
                  conn_lock = fsd_mutex_unlock( &self->session->drm_connection_mutex );
       }
      END_TRY

      fsd_log_return((""));
}


void
pbsdrmaa_job_update_status( fsd_job_t *self )
{
      volatile bool conn_lock = false;
      struct batch_status *volatile status = NULL;
      pbsdrmaa_session_t *session = (pbsdrmaa_session_t*)self->session;

      fsd_log_enter(( "({job_id=%s})", self->job_id ));
      
      TRY
       {
            conn_lock = fsd_mutex_lock( &self->session->drm_connection_mutex );
retry:

#ifdef PBS_PROFESSIONAL
            status = pbs_statjob( session->pbs_conn, self->job_id, NULL, NULL );
#else
            status = pbs_statjob( session->pbs_conn, self->job_id, session->status_attrl, NULL );
#endif
            fsd_log_info(( "pbs_statjob(fd=%d, job_id=%s, attribs={...}) =%p",
                         session->pbs_conn, self->job_id, (void*)status ));
            if( status == NULL )
             {
                  if(pbsdrmaa_job_update_status_accounting(self) == false)
                  {
      #ifndef PBS_PROFESSIONAL
                        fsd_log_error(("pbs_statjob error: %d, %s, %s", pbs_errno, pbse_to_txt(pbs_errno), pbs_strerror(pbs_errno)));
      #else
      #  ifndef PBS_PROFESSIONAL_NO_LOG
                        fsd_log_error(("pbs_statjob error: %d, %s", pbs_errno, pbse_to_txt(pbs_errno)));
      #  else
                        fsd_log_error(("pbs_statjob error: %d", pbs_errno));
      #  endif
      #endif

                        /**/

                        switch( pbs_errno )
                         {
                              case PBSE_UNKJOBID:
                                    break;
                              case PBSE_PROTOCOL:
                              case PBSE_EXPIRED:
                                    if ( session->pbs_conn >= 0 )
                                          pbs_disconnect( session->pbs_conn );
                                    sleep(1);
                                    session->pbs_conn = pbs_connect( session->super.contact );
                                    if( session->pbs_conn < 0 )
                                          pbsdrmaa_exc_raise_pbs( "pbs_connect" );
                                    else 
                                     {
                                          fsd_log_error(("retry:"));
                                          goto retry;
                                     }
                              default:
                                    pbsdrmaa_exc_raise_pbs( "pbs_statjob" );
                                    break;
                              case 0:  /* ? */
                                    fsd_exc_raise_code( FSD_ERRNO_INTERNAL_ERROR );
                                    break;
                         }
                   }
             }

            conn_lock = fsd_mutex_unlock( &self->session->drm_connection_mutex );

            if( status != NULL )
             {
                  ((pbsdrmaa_job_t*)self)->update( self, status );
             }
            else if( self->state < DRMAA_PS_DONE )
                  self->on_missing( self );
       }
      FINALLY
       {
            if( conn_lock )
                  conn_lock = fsd_mutex_unlock( &self->session->drm_connection_mutex );
            if( status != NULL )
                  pbs_statfree( status );
       }
      END_TRY

      fsd_log_return((""));
}


void
pbsdrmaa_job_update( fsd_job_t *self, struct batch_status *status )
{
      struct attrl *attribs = status->attribs;
      struct attrl *i = NULL;
      char pbs_state = 0;
      int exit_status = -2;
      const char *cpu_usage = NULL;
      const char *mem_usage = NULL;
      const char *vmem_usage = NULL;
      const char *walltime = NULL;
      long unsigned int modify_time = 0;

      fsd_log_enter(( "({job_id=%s})", self->job_id ));
#ifdef DEBUGGING
      pbsdrmaa_dump_attrl( attribs, NULL );
#endif
      fsd_assert( !strcmp( self->job_id, status->name ) );

      for( i = attribs;  i != NULL;  i = i->next )
       {
            int attr;
            attr = pbsdrmaa_pbs_attrib_by_name( i->name );
            switch( attr )
             {
                  case PBSDRMAA_ATTR_JOB_STATE:
                        pbs_state = i->value[0];                        
                        break;
                  case PBSDRMAA_ATTR_EXIT_STATUS:
                        exit_status = atoi( i->value );
                        break;
                  case PBSDRMAA_ATTR_RESOURCES_USED:
                        if( !strcmp( i->resource, "cput" ) )
                              cpu_usage = i->value;
                        else if( !strcmp( i->resource, "mem" ) )
                              mem_usage = i->value;
                        else if( !strcmp( i->resource, "vmem" ) )
                              vmem_usage = i->value;
                        else if( !strcmp( i->resource, "walltime" ) )
                              walltime = i->value;
                        break;
                  case PBSDRMAA_ATTR_QUEUE:
                        if (!self->queue)
                              self->queue = fsd_strdup(i->value);
                        break;
                  case PBSDRMAA_ATTR_ACCOUNT_NAME:
                        if (!self->project)
                              self->project = fsd_strdup(i->value);
                        break;
                  case PBSDRMAA_ATTR_EXECUTION_HOST:
                        if (!self->execution_hosts) {
                              fsd_log_debug(("execution_hosts = %s", i->value));
                              self->execution_hosts = fsd_strdup(i->value);
                        }
                        break;
                  case PBSDRMAA_ATTR_START_TIME:
                        {
                          long unsigned int start_time;
                          if (self->start_time == 0 && sscanf(i->value, "%lu", &start_time) == 1)
                              self->start_time = start_time;
                          break;
                        }
                  case PBSDRMAA_ATTR_MTIME:
                        if (sscanf(i->value, "%lu", &modify_time) != 1)
                              modify_time = 0;
                        break;
             }
       }

      if( pbs_state )
            fsd_log_debug(( "pbs_state: %c", pbs_state ));

      if( exit_status != -2 )
       {
            fsd_log_debug(( "exit_status: %d", exit_status ));
            self->exit_status = exit_status;
       }
      if(pbs_state){
            switch( pbs_state )
             {
                  case 'C': /* Job is completed after having run. */
                        self->flags &= FSD_JOB_TERMINATED_MASK;
                        self->flags |= FSD_JOB_TERMINATED;
                        if (exit_status != -2) { /* has exit code */
                              if( self->exit_status == 0) 
                                    self->state = DRMAA_PS_DONE;
                              else 
                                    self->state = DRMAA_PS_FAILED;
                        } else {
                              self->state = DRMAA_PS_FAILED;
                              self->exit_status = -1;
                        }
                        if (modify_time != 0)
                              self->end_time = modify_time; /* take last modify time as end time */
                        else
                              self->end_time = time(NULL);
                        
                        if (self->start_time == 0)
                              self->start_time = self->end_time;

                        break;
                  case 'E': /* Job is exiting after having run. - MM: ignore exiting state (transient state) - outputs might have not been transfered yet, 
                              MM2: mark job as running if current job status is undetermined - fix "ps after job was ripped" */
                        if (self->state == DRMAA_PS_UNDETERMINED)
                              self->state = DRMAA_PS_RUNNING;
                        break;
                  case 'H': /* Job is held. */
                        self->state = DRMAA_PS_USER_ON_HOLD;
                        self->flags |= FSD_JOB_HOLD;
                        break;
                  case 'Q': /* Job is queued, eligible to run or routed. */
                  case 'W': /* Job is waiting for its execution time to be reached. */
                        self->state = DRMAA_PS_QUEUED_ACTIVE;
                        self->flags &= ~FSD_JOB_HOLD;
                        break;
                  case 'R': /* Job is running. */
                  case 'T': /* Job is being moved to new location (?). */
                   {
                        if( self->flags & FSD_JOB_SUSPENDED )
                              self->state = DRMAA_PS_USER_SUSPENDED;
                        else
                              self->state = DRMAA_PS_RUNNING;
                        break;
                   }
                  case 'S': /* (Unicos only) job is suspend. */
                        self->state = DRMAA_PS_SYSTEM_SUSPENDED;
                        break;
                  case 0:  default:
                        self->state = DRMAA_PS_UNDETERMINED;
                        break;
       }
}
      fsd_log_debug(( "job_ps: %s", drmaa_job_ps_to_str(self->state) ));

       {
            int hours, minutes, seconds;
            long mem;
            if( cpu_usage && sscanf( cpu_usage, "%d:%d:%d", &hours, &minutes, &seconds ) == 3 )
             {
                  self->cpu_usage = 60*( 60*hours + minutes ) + seconds;
                  fsd_log_debug(( "cpu_usage: %s=%lds", cpu_usage, self->cpu_usage ));
             }
            if( mem_usage && sscanf( mem_usage, "%ldkb", &mem ) == 1 )
             {
                  self->mem_usage = 1024*mem;
                  fsd_log_debug(( "mem_usage: %s=%ldB", mem_usage, self->mem_usage ));
             }
            if( vmem_usage && sscanf( vmem_usage, "%ldkb", &mem ) == 1 )
             {
                  self->vmem_usage = 1024*mem;
                  fsd_log_debug(( "vmem_usage: %s=%ldB", vmem_usage, self->vmem_usage ));
             }
            if( walltime && sscanf( walltime, "%d:%d:%d", &hours, &minutes, &seconds ) == 3 )
             {
                  self->walltime = 60*( 60*hours + minutes ) + seconds;
                  fsd_log_debug(( "walltime: %s=%lds", walltime, self->walltime ));
             }
       }
}

void
pbsdrmaa_job_on_missing( fsd_job_t *self )
{
      pbsdrmaa_session_t *pbssession = (pbsdrmaa_session_t*)self->session;

      if( pbssession->pbs_home == NULL || pbssession->super.wait_thread_started )
            pbsdrmaa_job_on_missing_standard( self ); 
      else
            pbsdrmaa_job_on_missing_log_based( self );      
}

void
pbsdrmaa_job_on_missing_standard( fsd_job_t *self )
{
      fsd_drmaa_session_t *session = self->session;
      
      unsigned missing_mask = 0;

      fsd_log_enter(( "({job_id=%s})", self->job_id ));
      fsd_log_warning(( "Job %s missing from DRM queue", self->job_id ));

      switch( session->missing_jobs )
      {
            case FSD_REVEAL_MISSING_JOBS:         missing_mask = 0;     break;
            case FSD_IGNORE_MISSING_JOBS:         missing_mask = 0x73;  break;
            case FSD_IGNORE_QUEUED_MISSING_JOBS:  missing_mask = 0x13;  break;
      }
      fsd_log_debug(( "last job_ps: %s (0x%02x); mask: 0x%02x",
                        drmaa_job_ps_to_str(self->state), self->state, missing_mask ));

      if( self->state < DRMAA_PS_DONE
                  &&  (self->state & ~missing_mask) )
            fsd_exc_raise_fmt(
                        FSD_DRMAA_ERRNO_INVALID_JOB,
                        "self %s missing from queue", self->job_id
                        );

      if( (self->flags & FSD_JOB_TERMINATED_MASK) == 0 )
      {
            self->flags &= FSD_JOB_TERMINATED_MASK;
            self->flags |= FSD_JOB_TERMINATED;
      }

      if( (self->flags & FSD_JOB_ABORTED) == 0
                  &&  session->missing_jobs == FSD_IGNORE_MISSING_JOBS )
      { /* assume everthing was ok */
            self->state = DRMAA_PS_DONE;
            self->exit_status = 0;
      }
      else
      { /* job aborted */
            self->state = DRMAA_PS_FAILED;
            self->exit_status = -1;
      }

      fsd_cond_broadcast( &self->status_cond);

      fsd_log_return(( "; job_ps=%s, exit_status=%d",
                        drmaa_job_ps_to_str(self->state), self->exit_status ));
}

void
pbsdrmaa_job_on_missing_log_based( fsd_job_t *self )
{
      fsd_drmaa_session_t *session = self->session;
      pbsdrmaa_log_reader_t *log_reader = NULL;
      
      fsd_log_enter(( "({job_id=%s})", self->job_id ));
      fsd_log_info(( "Job %s missing from DRM queue", self->job_id ));
      
      TRY
      {     
            log_reader = pbsdrmaa_log_reader_new( session, self);
            log_reader->read_log( log_reader ); 
      }
      FINALLY
      {
            pbsdrmaa_log_reader_destroy( log_reader );
      }
      END_TRY

      fsd_log_return(( "; job_ps=%s, exit_status=%d",
                        drmaa_job_ps_to_str(self->state), self->exit_status ));     
}

bool
pbsdrmaa_job_update_status_accounting( fsd_job_t *self )
{
      fsd_drmaa_session_t *session = self->session;
      pbsdrmaa_log_reader_t *log_reader = NULL;
      bool res = false;
      
      fsd_log_enter(( "({job_id=%s})", self->job_id ));
      fsd_log_info(( "Reading job %s info from accounting file", self->job_id ));
      
      TRY
      {     
            log_reader = pbsdrmaa_log_reader_accounting_new( session, self);
            bool res = log_reader->read_log( log_reader ); 
      }
      FINALLY
      {
            pbsdrmaa_log_reader_destroy( log_reader );
      }
      END_TRY

      fsd_log_return((""));
      return res;
}

Generated by  Doxygen 1.6.0   Back to index