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boinc/sched/sched_result.C

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// Berkeley Open Infrastructure for Network Computing
// http://boinc.berkeley.edu
// Copyright (C) 2008 University of California
//
// This is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation;
// either version 2.1 of the License, or (at your option) any later version.
//
// This software 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 Lesser General Public License for more details.
//
// To view the GNU Lesser General Public License visit
// http://www.gnu.org/copyleft/lesser.html
// or write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#include "boinc_db.h"
#include "str_util.h"
#include "parse.h"
#include "server_types.h"
#include "sched_msgs.h"
#include "sched_util.h"
#include "sched_config.h"
#include "sched_result.h"
// handle completed results
//
int handle_results(SCHEDULER_REQUEST& sreq, SCHEDULER_REPLY& reply) {
DB_SCHED_RESULT_ITEM_SET result_handler;
SCHED_RESULT_ITEM* srip;
unsigned int i;
int retval;
RESULT* rp;
bool changed_host=false;
if (sreq.results.size() == 0) return 0;
// copy reported results to a separate vector, "result_handler",
// initially with only the "name" field present
//
for (i=0; i<sreq.results.size(); i++) {
result_handler.add_result(sreq.results[i].name);
}
// read results from database into "result_handler".
// Quantities that must be read from the DB are those
// where srip (see below) appears as an rval.
// These are: id, name, server_state, received_time, hostid, validate_state.
// Quantities that must be written to the DB are those for
// which srip appears as an lval. These are:
// hostid, teamid, received_time, client_state, cpu_time, exit_status,
// app_version_num, claimed_credit, server_state, stderr_out,
// xml_doc_out, outcome, validate_state
//
retval = result_handler.enumerate();
if (retval) {
log_messages.printf(MSG_CRITICAL,
"[HOST#%d] Batch query failed\n",
reply.host.id
);
}
// loop over results reported by client
//
// A note about acks: we send an ack for result received if either
// 1) there's some problem with it (wrong state, host, not in DB) or
// 2) we update it successfully.
// In other words, the only time we don't ack a result is when
// it looks OK but the update failed.
//
for (i=0; i<sreq.results.size(); i++) {
rp = &sreq.results[i];
retval = result_handler.lookup_result(rp->name, &srip);
if (retval) {
log_messages.printf(MSG_CRITICAL,
"[HOST#%d] [RESULT#? %s] can't find result\n",
reply.host.id, rp->name
);
reply.result_acks.push_back(std::string(rp->name));
continue;
}
if (config.debug_handle_results) {
log_messages.printf(MSG_DEBUG,
"[HOST#%d] [RESULT#%d %s] got result (DB: server_state=%d outcome=%d client_state=%d validate_state=%d delete_state=%d)\n",
reply.host.id, srip->id, srip->name, srip->server_state,
srip->outcome, srip->client_state, srip->validate_state,
srip->file_delete_state
);
}
// Do various sanity checks.
// If one of them fails, set srip->id = 0,
// which suppresses the DB update later on
//
// If result has server_state OVER
// if outcome NO_REPLY accept it (it's just late).
// else ignore it
//
if (srip->server_state == RESULT_SERVER_STATE_OVER) {
const char *dont_replace_result = NULL;
switch (srip->outcome) {
case RESULT_OUTCOME_INIT:
// should never happen!
dont_replace_result = "this result was never sent";
break;
case RESULT_OUTCOME_SUCCESS:
// don't replace a successful result!
dont_replace_result = "result already reported as success";
break;
case RESULT_OUTCOME_COULDNT_SEND:
// should never happen!
dont_replace_result = "this result couldn't be sent";
break;
case RESULT_OUTCOME_CLIENT_ERROR:
// should never happen!
dont_replace_result = "result already reported as error";
break;
case RESULT_OUTCOME_CLIENT_DETACHED:
case RESULT_OUTCOME_NO_REPLY:
// result is late in arriving, but keep it anyhow
break;
case RESULT_OUTCOME_DIDNT_NEED:
// should never happen
dont_replace_result = "this result wasn't sent (not needed)";
break;
case RESULT_OUTCOME_VALIDATE_ERROR:
// we already passed through the validator, so
// don't keep the new result
dont_replace_result = "result already reported, validate error";
break;
default:
dont_replace_result = "server logic bug; please alert BOINC developers";
break;
}
if (dont_replace_result) {
char buf[256];
log_messages.printf(MSG_CRITICAL,
"[HOST#%d] [RESULT#%d %s] result already over [outcome=%d validate_state=%d]: %s\n",
reply.host.id, srip->id, srip->name, srip->outcome,
srip->validate_state, dont_replace_result
);
sprintf(buf, "Completed result %s refused: %s", srip->name, dont_replace_result);
USER_MESSAGE um(buf, "high");
reply.insert_message(um);
srip->id = 0;
reply.result_acks.push_back(std::string(rp->name));
continue;
}
}
if (srip->server_state == RESULT_SERVER_STATE_UNSENT) {
log_messages.printf(MSG_CRITICAL,
"[HOST#%d] [RESULT#%d %s] got unexpected result: server state is %d\n",
reply.host.id, srip->id, srip->name, srip->server_state
);
srip->id = 0;
reply.result_acks.push_back(std::string(rp->name));
continue;
}
if (srip->received_time) {
log_messages.printf(MSG_CRITICAL,
"[HOST#%d] [RESULT#%d %s] already got result, at %s \n",
reply.host.id, srip->id, srip->name,
time_to_string(srip->received_time)
);
srip->id = 0;
reply.result_acks.push_back(std::string(rp->name));
continue;
}
if (srip->hostid != reply.host.id) {
log_messages.printf(MSG_CRITICAL,
"[HOST#%d] [RESULT#%d %s] got result from wrong host; expected [HOST#%d]\n",
reply.host.id, srip->id, srip->name, srip->hostid
);
DB_HOST result_host;
retval = result_host.lookup_id(srip->hostid);
if (retval) {
log_messages.printf(MSG_CRITICAL,
"[RESULT#%d %s] Can't lookup [HOST#%d]\n",
srip->id, srip->name, srip->hostid
);
srip->id = 0;
reply.result_acks.push_back(std::string(rp->name));
continue;
} else if (result_host.userid != reply.host.userid) {
log_messages.printf(MSG_CRITICAL,
"[USER#%d] [HOST#%d] [RESULT#%d %s] Not even the same user; expected [USER#%d]\n",
reply.host.userid, reply.host.id, srip->id, srip->name, result_host.userid
);
srip->id = 0;
reply.result_acks.push_back(std::string(rp->name));
continue;
} else {
log_messages.printf(MSG_CRITICAL,
"[HOST#%d] [RESULT#%d %s] Allowing result because same USER#%d\n",
reply.host.id, srip->id, srip->name, reply.host.userid
);
changed_host = true;
}
} // hostids do not match
// Modify the in-memory copy obtained from the DB earlier.
// If we found a problem above,
// we have continued and skipped this modify
//
srip->hostid = reply.host.id;
srip->teamid = reply.user.teamid;
srip->received_time = time(0);
srip->client_state = rp->client_state;
srip->cpu_time = rp->cpu_time;
// check for impossible CPU time
//
double elapsed_time = srip->received_time - srip->sent_time;
if (elapsed_time < 0) {
log_messages.printf(MSG_NORMAL,
"[HOST#%d] [RESULT#%d] inconsistent sent/received times\n", srip->hostid, srip->id
);
} else {
if (srip->cpu_time > elapsed_time) {
log_messages.printf(MSG_NORMAL,
"[HOST#%d] [RESULT#%d] excessive CPU time: reported %f > elapsed %f%s\n",
srip->hostid, srip->id, srip->cpu_time, elapsed_time, changed_host?" [OK: HOST changed]":""
);
if (!changed_host) srip->cpu_time = elapsed_time;
}
}
srip->exit_status = rp->exit_status;
srip->app_version_num = rp->app_version_num;
if (rp->fpops_cumulative || rp->intops_cumulative) {
srip->claimed_credit = fpops_to_credit(rp->fpops_cumulative, rp->intops_cumulative);
} else if (rp->fpops_per_cpu_sec || rp->intops_per_cpu_sec) {
srip->claimed_credit = fpops_to_credit(
rp->fpops_per_cpu_sec*srip->cpu_time,
rp->intops_per_cpu_sec*srip->cpu_time
);
} else {
srip->claimed_credit = srip->cpu_time * reply.host.claimed_credit_per_cpu_sec;
}
// Regardless of the method of claiming credit, multiply by the
// application's credit multiplier at the time of result creation.
srip->claimed_credit*=credit_multiplier(srip->appid,srip->sent_time);
if (config.debug_handle_results) {
log_messages.printf(MSG_DEBUG,
"cpu time %f credit/sec %f, claimed credit %f\n", srip->cpu_time, reply.host.claimed_credit_per_cpu_sec, srip->claimed_credit
);
}
srip->server_state = RESULT_SERVER_STATE_OVER;
strlcpy(srip->stderr_out, rp->stderr_out, sizeof(srip->stderr_out));
strlcpy(srip->xml_doc_out, rp->xml_doc_out, sizeof(srip->xml_doc_out));
// look for exit status and app version in stderr_out
// (historical - can be deleted at some point)
//
parse_int(srip->stderr_out, "<exit_status>", srip->exit_status);
parse_int(srip->stderr_out, "<app_version>", srip->app_version_num);
if ((srip->client_state == RESULT_FILES_UPLOADED) && (srip->exit_status == 0)) {
srip->outcome = RESULT_OUTCOME_SUCCESS;
if (config.debug_handle_results) {
log_messages.printf(MSG_DEBUG,
"[RESULT#%d %s]: setting outcome SUCCESS\n",
srip->id, srip->name
);
}
reply.got_good_result();
} else {
if (config.debug_handle_results) {
log_messages.printf(MSG_DEBUG,
"[RESULT#%d %s]: client_state %d exit_status %d; setting outcome ERROR\n",
srip->id, srip->name, srip->client_state, srip->exit_status
);
}
srip->outcome = RESULT_OUTCOME_CLIENT_ERROR;
srip->validate_state = VALIDATE_STATE_INVALID;
reply.got_bad_result();
}
} // loop over all incoming results
// Update the result records
// (skip items that we previously marked to skip)
//
for (i=0; i<result_handler.results.size(); i++) {
SCHED_RESULT_ITEM& sri = result_handler.results[i];
if (sri.id == 0) continue;
retval = result_handler.update_result(sri);
if (retval) {
log_messages.printf(MSG_CRITICAL,
"[HOST#%d] [RESULT#%d %s] can't update result: %s\n",
reply.host.id, sri.id, sri.name, boinc_db.error_string()
);
} else {
reply.result_acks.push_back(std::string(sri.name));
}
}
// set transition_time for the results' WUs
//
retval = result_handler.update_workunits();
if (retval) {
log_messages.printf(MSG_CRITICAL,
"[HOST#%d] can't update WUs: %d\n",
reply.host.id, retval
);
}
return 0;
}
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