FILE*
Email::open_stream( ClassAd* ad, int exit_reason, const char* subject )
{
if( ! shouldSend(ad, exit_reason) ) {
// nothing to do
return NULL;
}
ad->LookupInteger( ATTR_CLUSTER_ID, cluster );
ad->LookupInteger( ATTR_PROC_ID, proc );
MyString full_subject;
full_subject.formatstr( "Condor Job %d.%d", cluster, proc );
if( subject ) {
full_subject += " ";
full_subject += subject;
}
if(email_admin) {
fp = email_admin_open( full_subject.Value() );
} else {
fp = email_user_open_id( ad, cluster, proc, full_subject.Value() );
}
return fp;
}
void
TransferQueueManager::notifyAboutTransfersTakingTooLong()
{
SimpleListIterator<TransferQueueRequest *> itr(m_xfer_queue);
TransferQueueRequest *client = NULL;
FILE *email = NULL;
while( itr.Next(client) ) {
if( client->m_gave_go_ahead && !client->m_notified_about_taking_too_long ) {
int age = time(NULL) - client->m_time_go_ahead;
int max_queue_age = client->m_max_queue_age;
if( max_queue_age > 0 && max_queue_age < age ) {
client->m_notified_about_taking_too_long = true;
if( !email ) {
email = email_admin_open("file transfer took too long");
if( !email ) {
// Error sending the message
dprintf( D_ALWAYS,
"ERROR: Can't send email to the Condor "
"Administrator\n" );
return;
}
fprintf( email,
"Below is a list of file transfers that took longer than\n"
"MAX_TRANSFER_QUEUE_AGE=%ds. When other transfers are waiting\n"
"to start, these old transfer attempts will be aborted.\n"
"To avoid this timeout, MAX_TRANSFER_QUEUE_AGE may be increased,\n"
"but be aware that transfers which take a long time will delay other\n"
"transfers from starting if the maximum number of concurrent transfers\n"
"is exceeded. Therefore, it is advisable to also review the settings\n"
"of MAX_CONCURRENT_UPLOADS, MAX_CONCURRENT_DOWNLOADS, and/or\n"
"FILE_TRANSFER_DISK_LOAD_THROTTLE.\n\n"
"The transfer queue currently has %d/%d uploads,\n"
"%d/%d downloads, %d transfers waiting %ds to upload,\n"
"and %d transfers waiting %ds to download.\n",
max_queue_age,
m_uploading,
m_max_uploads,
m_downloading,
m_max_downloads,
m_waiting_to_upload,
m_upload_wait_time,
m_waiting_to_download,
m_download_wait_time);
char const *ema_horizon = m_iostats.bytes_sent.ShortestHorizonEMAName();
if( ema_horizon ) {
fprintf(email,
"Upload %s I/O load: %.0f bytes/s %.3f disk load %.3f net load\n",
ema_horizon,
m_iostats.bytes_sent.EMAValue(ema_horizon),
m_iostats.file_read.EMAValue(ema_horizon),
m_iostats.net_write.EMAValue(ema_horizon));
fprintf(email,
"Download %s I/O load: %.0f bytes/s %.3f disk load %.3f net load\n",
ema_horizon,
m_iostats.bytes_received.EMAValue(ema_horizon),
m_iostats.file_write.EMAValue(ema_horizon),
m_iostats.net_read.EMAValue(ema_horizon));
}
fprintf(email,"\n\nTransfers older than MAX_TRANSFER_QUEUE_AGE=%ds:\n\n",max_queue_age);
}
fprintf( email, "%s\n", client->SinlessDescription() );
}
}
}
if( email ) {
email_close ( email );
}
}
void
TransferQueueManager::CheckTransferQueue() {
TransferQueueRequest *client = NULL;
int downloading = 0;
int uploading = 0;
bool clients_waiting = false;
m_check_queue_timer = -1;
ClearTransferCounts();
m_xfer_queue.Rewind();
while( m_xfer_queue.Next(client) ) {
if( client->m_gave_go_ahead ) {
GetUserRec(client->m_up_down_queue_user).running++;
if( client->m_downloading ) {
downloading += 1;
}
else {
uploading += 1;
}
}
else {
GetUserRec(client->m_up_down_queue_user).idle++;
}
}
if( m_throttle_disk_load ) {
int old_concurrency_limit = m_throttle_disk_load_max_concurrency;
double disk_load_short = m_iostats.file_read.EMAValue(m_disk_throttle_short_horizon.c_str()) +
m_iostats.file_write.EMAValue(m_disk_throttle_short_horizon.c_str());
double disk_load_long = m_iostats.file_read.EMAValue(m_disk_throttle_long_horizon.c_str()) +
m_iostats.file_write.EMAValue(m_disk_throttle_long_horizon.c_str());
if( disk_load_short > m_disk_load_high_throttle ) {
// above the high water mark, do not start more transfers
m_throttle_disk_load_max_concurrency = uploading + downloading;
}
else if( disk_load_long > m_disk_load_low_throttle || disk_load_short > m_disk_load_low_throttle ) {
// between the high and low water mark, keep the concurrency limit as is (but at least 1)
if( m_throttle_disk_load_max_concurrency < 1 ) {
m_throttle_disk_load_max_concurrency = 1;
m_throttle_disk_load_incremented = time(NULL);
}
}
else {
// below the low water mark, slowly increase the concurrency limit if we are running into it
if( uploading + downloading == m_throttle_disk_load_max_concurrency ) {
time_t now = time(NULL);
if( m_throttle_disk_load_incremented > now ) {
m_throttle_disk_load_incremented = now; // clock jumped back
}
if( m_throttle_disk_load_incremented == 0 || now-m_throttle_disk_load_incremented >= m_throttle_disk_load_increment_wait ) {
m_throttle_disk_load_incremented = now;
m_throttle_disk_load_max_concurrency += 1;
if( m_throttle_disk_load_max_concurrency < floor(m_disk_load_low_throttle) ) {
m_throttle_disk_load_max_concurrency = floor(m_disk_load_low_throttle);
}
}
}
}
if( old_concurrency_limit != m_throttle_disk_load_max_concurrency ) {
dprintf(D_ALWAYS,
"TransferQueueManager: adjusted concurrency limit by %+d based on disk load: "
"new limit %d, load %s %f %s %f, throttle %f to %f\n",
m_throttle_disk_load_max_concurrency-old_concurrency_limit,
m_throttle_disk_load_max_concurrency,
m_disk_throttle_short_horizon.c_str(),
disk_load_short,
m_disk_throttle_long_horizon.c_str(),
disk_load_long,
m_disk_load_low_throttle,
m_disk_load_high_throttle);
}
}
// schedule new transfers
while( uploading < m_max_uploads || m_max_uploads <= 0 ||
downloading < m_max_downloads || m_max_downloads <= 0 )
{
TransferQueueRequest *best_client = NULL;
int best_recency = 0;
unsigned int best_running_count = 0;
if( m_throttle_disk_load && (uploading + downloading >= m_throttle_disk_load_max_concurrency) ) {
break;
}
m_xfer_queue.Rewind();
while( m_xfer_queue.Next(client) ) {
if( client->m_gave_go_ahead ) {
continue;
}
if( (client->m_downloading &&
(downloading < m_max_downloads || m_max_downloads <= 0)) ||
((!client->m_downloading) &&
(uploading < m_max_uploads || m_max_uploads <= 0)) )
{
TransferQueueUser &this_user = GetUserRec(client->m_up_down_queue_user);
unsigned int this_user_active_count = this_user.running;
int this_user_recency = this_user.recency;
bool this_client_is_better = false;
if( !best_client ) {
this_client_is_better = true;
}
else if( best_client->m_downloading != client->m_downloading ) {
// effectively treat up/down queues independently
if( client->m_downloading ) {
this_client_is_better = true;
}
}
else if( best_running_count > this_user_active_count ) {
// prefer users with fewer active transfers
// (only counting transfers in one direction for this comparison)
this_client_is_better = true;
}
else if( best_recency > this_user_recency ) {
// if still tied: round robin
this_client_is_better = true;
}
if( this_client_is_better ) {
best_client = client;
best_running_count = this_user_active_count;
best_recency = this_user_recency;
}
}
}
client = best_client;
if( !client ) {
break;
}
dprintf(D_FULLDEBUG,
"TransferQueueManager: sending GoAhead to %s.\n",
client->Description() );
if( !client->SendGoAhead() ) {
dprintf(D_FULLDEBUG,
"TransferQueueManager: failed to send GoAhead; "
"dequeueing %s.\n",
client->Description() );
delete client;
m_xfer_queue.Delete(client);
TransferQueueChanged();
}
else {
SetRoundRobinRecency(client->m_up_down_queue_user);
TransferQueueUser &user = GetUserRec(client->m_up_down_queue_user);
user.running += 1;
user.idle -= 1;
if( client->m_downloading ) {
downloading += 1;
}
else {
uploading += 1;
}
}
}
// now that we have finished scheduling new transfers,
// examine requests that are still waiting
m_xfer_queue.Rewind();
while( m_xfer_queue.Next(client) ) {
if( !client->m_gave_go_ahead ) {
clients_waiting = true;
TransferQueueUser &user = GetUserRec(client->m_up_down_queue_user);
int age = time(NULL) - client->m_time_born;
if( client->m_downloading ) {
m_waiting_to_download++;
if( age > m_download_wait_time ) {
m_download_wait_time = age;
}
m_iostats.download_MB_waiting += client->m_sandbox_size_MB;
user.iostats.download_MB_waiting += client->m_sandbox_size_MB;
}
else {
m_waiting_to_upload++;
if( age > m_upload_wait_time ) {
m_upload_wait_time = age;
}
m_iostats.upload_MB_waiting += client->m_sandbox_size_MB;
user.iostats.upload_MB_waiting += client->m_sandbox_size_MB;
}
}
}
m_uploading = uploading;
m_downloading = downloading;
if( clients_waiting ) {
// queue is full; check for ancient clients
m_xfer_queue.Rewind();
while( m_xfer_queue.Next(client) ) {
if( client->m_gave_go_ahead ) {
int age = time(NULL) - client->m_time_go_ahead;
int max_queue_age = client->m_max_queue_age;
if( max_queue_age > 0 && max_queue_age < age ) {
// Killing this client will not stop the current
// file that is being transfered by it (which
// presumably has stalled for some reason). However,
// it should prevent any additional files in the
// sandbox from being transferred.
dprintf(D_ALWAYS,"TransferQueueManager: forcibly "
"dequeueing ancient (%ds old) entry for %s, "
"because it is older than "
"MAX_TRANSFER_QUEUE_AGE=%ds.\n",
age,
client->Description(),
max_queue_age);
FILE *email = email_admin_open("file transfer took too long");
if( !email ) {
// Error sending the message
dprintf( D_ALWAYS,
"ERROR: Can't send email to the Condor "
"Administrator\n" );
} else {
fprintf( email,
"A file transfer for\n%s\ntook longer than MAX_TRANSFER_QUEUE_AGE=%ds,\n"
"so this transfer is being removed from the transfer queue,\n"
"which will abort further transfers for this attempt to run this job.\n\n"
"To avoid this timeout, MAX_TRANSFER_QUEUE_AGE may be increased,\n"
"but be aware that transfers which take a long time will delay other\n"
"transfers from starting if the maximum number of concurrent transfers\n"
"is exceeded. Therefore, it is advisable to also review the settings\n"
"of MAX_CONCURRENT_UPLOADS and/or MAX_CONCURRENT_DOWNLOADS.\n\n"
"The transfer queue currently has %d/%d uploads,\n"
"%d/%d downloads, %d transfers waiting %ds to upload,\n"
"and %d transfers waiting %ds to download.\n",
client->Description(),
max_queue_age,
m_uploading,
m_max_uploads,
m_downloading,
m_max_downloads,
m_waiting_to_upload,
m_upload_wait_time,
m_waiting_to_download,
m_download_wait_time
);
email_close ( email );
}
delete client;
m_xfer_queue.DeleteCurrent();
TransferQueueChanged();
// Only delete more ancient clients if the
// next pass of this function finds there is pressure
// on the queue.
break;
}
}
}
}
}
int
GridUniverseLogic::GManagerReaper(Service *,int pid, int exit_status)
{
gman_node_t* gman_node = NULL;
MyString owner;
// Iterate through our table to find the node w/ this pid
// Someday we should perhaps also hash on the pid, but we
// don't expect gridmanagers to exit very often, and there
// are not that many of them.
if (gman_pid_table) {
gman_node_t* tmpnode;
gman_pid_table->startIterations();
while ( gman_pid_table->iterate(owner,tmpnode) ) {
if (tmpnode->pid == pid ) {
// found it!
gman_node = tmpnode;
break;
}
}
}
MyString owner_safe;
MyString exit_reason;
if(gman_node) { owner_safe = owner; }
else { owner_safe = "Unknown"; }
if ( WIFEXITED( exit_status ) ) {
exit_reason.formatstr( "with return code %d",
WEXITSTATUS( exit_status ) );
} else {
exit_reason.formatstr( "due to %s",
daemonCore->GetExceptionString( exit_status ) );
}
dprintf(D_ALWAYS, "condor_gridmanager (PID %d, owner %s) exited %s.\n",
pid, owner_safe.Value(), exit_reason.Value() );
if(WIFEXITED(exit_status) && WEXITSTATUS(exit_status) == DPRINTF_ERROR) {
const char *condorUserName = get_condor_username();
dprintf(D_ALWAYS,
"The gridmanager had a problem writing its log. "
"Check the permissions of the file specified by GRIDMANAGER_LOG; "
"it needs to be writable by Condor.\n");
/* send email to the admin about this, but only
* every six hours - enough to not be ignored, but
* not enough to be a pest. If only my children were
* so helpful and polite. Ah, well, we can always dream...
*/
static time_t last_email_re_gridmanlog = 0;
if ( time(NULL) - last_email_re_gridmanlog > 6 * 60 * 60 ) {
last_email_re_gridmanlog = time(NULL);
FILE *email = email_admin_open("Unable to launch grid universe jobs.");
if ( email ) {
fprintf(email,
"The condor_gridmanager had an error writing its log file. Check the \n"
"permissions/ownership of the file specified by the GRIDMANAGER_LOG setting in \n"
"the condor_config file. This file needs to be writable as user %s to enable\n"
"the condor_gridmanager daemon to write to it. \n\n"
"Until this problem is fixed, grid universe jobs submitted from this machine cannot "
"be launched.\n", condorUserName ? condorUserName : "******" );
email_close(email);
} else {
// Error sending an email message
dprintf(D_ALWAYS,"ERROR: Cannot send email to the admin\n");
}
}
} // end if(WIFEXITED(exit_status) && WEXITSTATUS(exit_status) == DPRINTF_ERROR)
if (!gman_node) {
// nothing more to do, so return
return 0;
}
// Cancel any timers before removing the node!!
if (gman_node->add_timer_id != -1) {
daemonCore->Cancel_Timer(gman_node->add_timer_id);
}
if (gman_node->remove_timer_id != -1) {
daemonCore->Cancel_Timer(gman_node->remove_timer_id);
}
// Remove node from our hash table
gman_pid_table->remove(owner);
// Remove any scratch directory used by this gridmanager
char *scratchdir = scratchFilePath(gman_node);
ASSERT(scratchdir);
if ( IsDirectory(scratchdir) &&
init_user_ids(gman_node->owner, gman_node->domain) )
{
priv_state saved_priv = set_user_priv();
// Must put this in braces so the Directory object
// destructor is called, which will free the iterator
// handle. If we didn't do this, the below rmdir
// would fail.
{
Directory tmp( scratchdir );
tmp.Remove_Entire_Directory();
}
if ( rmdir(scratchdir) == 0 ) {
dprintf(D_FULLDEBUG,"Removed scratch dir %s\n",scratchdir);
} else {
dprintf(D_FULLDEBUG,"Failed to remove scratch dir %s\n",
scratchdir);
}
set_priv(saved_priv);
uninit_user_ids();
}
delete [] scratchdir;
// Reclaim memory from the node itself
delete gman_node;
return 0;
}
