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diff --git a/src/infrastructure/daemon/PhabricatorDaemonControl.php b/src/infrastructure/daemon/PhabricatorDaemonControl.php
index bd2cf929a4..a0ca065d0e 100644
--- a/src/infrastructure/daemon/PhabricatorDaemonControl.php
+++ b/src/infrastructure/daemon/PhabricatorDaemonControl.php
@@ -1,358 +1,349 @@
<?php
/*
* Copyright 2012 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
final class PhabricatorDaemonControl {
public function executeListCommand() {
$symbols = $this->loadAvailableDaemonClasses();
$symbols = igroup($symbols, 'library');
echo "\n";
foreach ($symbols as $library => $symbol_list) {
echo phutil_console_format("Daemons in library __%s__:\n", $library);
foreach ($symbol_list as $symbol) {
echo " ".$symbol['name']."\n";
}
echo "\n";
}
return 0;
}
public function executeStatusCommand() {
$daemons = $this->loadRunningDaemons();
if (!$daemons) {
echo "There are no running Phabricator daemons.\n";
return 1;
}
$status = 0;
printf(
"%-5s\t%-24s\t%s\n",
"PID",
"Started",
"Daemon");
foreach ($daemons as $daemon) {
$name = $daemon->getName();
if (!$daemon->isRunning()) {
- $daemon_log = $daemon->loadDaemonLog();
- if ($daemon_log) {
- $daemon_log->setStatus(PhabricatorDaemonLog::STATUS_DEAD);
- $daemon_log->save();
- }
-
+ $daemon->updateStatus(PhabricatorDaemonLog::STATUS_DEAD);
$status = 2;
$name = '<DEAD> '.$name;
}
printf(
"%5s\t%-24s\t%s\n",
$daemon->getPID(),
$daemon->getEpochStarted()
? date('M j Y, g:i:s A', $daemon->getEpochStarted())
: null,
$name);
}
return $status;
}
public function executeStopCommand($pids = null) {
$daemons = $this->loadRunningDaemons();
if (!$daemons) {
echo "There are no running Phabricator daemons.\n";
return 0;
}
$daemons = mpull($daemons, null, 'getPID');
$running = array();
if ($pids == null) {
$running = $daemons;
} else {
// We were given a PID or set of PIDs to kill.
foreach ($pids as $key => $pid) {
if (!preg_match('/^\d+$/', $pid)) {
echo "'{$pid}' is not a valid PID.\n";
continue;
} else if (empty($daemons[$pid])) {
echo "'{$pid}' is not Phabricator-controlled PID. Not killing.\n";
continue;
} else {
$running[] = $daemons[$pid];
}
}
}
if (empty($running)) {
echo "No daemons to kill.\n";
return 0;
}
$all_daemons = $running;
foreach ($running as $key => $daemon) {
$pid = $daemon->getPID();
$name = $daemon->getName();
echo "Stopping daemon '{$name}' ({$pid})...\n";
if (!$daemon->isRunning()) {
echo "Daemon is not running.\n";
unset($running[$key]);
- $daemon_log = $daemon->loadDaemonLog();
- if ($daemon_log) {
- $daemon_log->setStatus(PhabricatorDaemonLog::STATUS_EXITED);
- $daemon_log->save();
- }
+ $daemon->updateStatus(PhabricatorDaemonLog::STATUS_EXITED);
} else {
posix_kill($pid, SIGINT);
}
}
$start = time();
do {
foreach ($running as $key => $daemon) {
$pid = $daemon->getPID();
if (!$daemon->isRunning()) {
echo "Daemon {$pid} exited normally.\n";
unset($running[$key]);
}
}
if (empty($running)) {
break;
}
usleep(100000);
} while (time() < $start + 15);
foreach ($running as $key => $daemon) {
$pid = $daemon->getPID();
echo "KILLing daemon {$pid}.\n";
posix_kill($pid, SIGKILL);
}
foreach ($all_daemons as $daemon) {
if ($daemon->getPIDFile()) {
Filesystem::remove($daemon->getPIDFile());
}
}
}
public function executeHelpCommand() {
echo phutil_console_format(<<<EOHELP
**NAME**
**phd** - phabricator daemon launcher
**COMMAND REFERENCE**
**start**
Start the normal collection of daemons that Phabricator uses. This
is appropriate for most installs. If you want to customize what
is launched, you can use **launch** for fine-grained control.
**restart**
Stop all running daemons, then start a standard loadout.
**stop** [PID ...]
Stop all running daemons if no PIDs are given, or a particular
PID or set of PIDs, if they are supplied.
**launch** [__n__] __daemon__ [argv ...]
**debug** __daemon__ [argv ...]
Start a daemon (or n copies of a daemon).
With **debug**, do not daemonize. Use this if you're having trouble
getting daemons working.
**list**
List available daemons.
**status**
List running daemons. This command will exit with a non-zero exit
status if any daemons are not running.
**help**
Show this help.
**repository-launch-master**
DEPRECATED. Use 'phd start'.
**repository-launch-readonly**
DEPRECATED. Use 'phd launch pulllocal -- --no-discovery'.
EOHELP
);
return 1;
}
public function pingConduit() {
// It's fairly common to have issues here, e.g. because Phabricator isn't
// running, isn't accessible, you put the domain in your hostsfile but it
// isn't available on the production host, etc. If any of this doesn't work,
// conduit will throw.
$conduit = new ConduitClient(PhabricatorEnv::getURI('/api/'));
$conduit->callMethodSynchronous('conduit.ping', array());
}
public function launchDaemon($daemon, array $argv, $debug = false) {
$symbols = $this->loadAvailableDaemonClasses();
$symbols = ipull($symbols, 'name', 'name');
if (empty($symbols[$daemon])) {
throw new Exception(
"Daemon '{$daemon}' is not loaded, misspelled or abstract.");
}
$libphutil_root = dirname(phutil_get_library_root('phutil'));
$launch_daemon = $libphutil_root.'/scripts/daemon/';
foreach ($argv as $key => $arg) {
$argv[$key] = escapeshellarg($arg);
}
$flags = array();
if ($debug || PhabricatorEnv::getEnvConfig('phd.trace')) {
$flags[] = '--trace';
}
if ($debug || PhabricatorEnv::getEnvConfig('phd.verbose')) {
$flags[] = '--verbose';
}
if (!$debug) {
$flags[] = '--daemonize';
}
$bootloader = PhutilBootloader::getInstance();
foreach ($bootloader->getAllLibraries() as $library) {
if ($library == 'phutil') {
// No need to load libphutil, it's necessarily loaded implicitly by the
// daemon itself.
continue;
}
$flags[] = csprintf(
'--load-phutil-library=%s',
phutil_get_library_root($library));
}
$flags[] = csprintf('--conduit-uri=%s', PhabricatorEnv::getURI('/api/'));
if (!$debug) {
$log_file = $this->getLogDirectory().'/daemons.log';
$flags[] = csprintf('--log=%s', $log_file);
}
$pid_dir = $this->getPIDDirectory();
// TODO: This should be a much better user experience.
Filesystem::assertExists($pid_dir);
Filesystem::assertIsDirectory($pid_dir);
Filesystem::assertWritable($pid_dir);
$flags[] = csprintf('--phd=%s', $pid_dir);
$command = csprintf(
'./launch_daemon.php %s %C %C',
$daemon,
implode(' ', $flags),
implode(' ', $argv));
if ($debug) {
// Don't terminate when the user sends ^C; it will be sent to the
// subprocess which will terminate normally.
pcntl_signal(
SIGINT,
array('PhabricatorDaemonControl', 'ignoreSignal'));
echo "\n libphutil/scripts/daemon/ \$ {$command}\n\n";
phutil_passthru('(cd %s && exec %C)', $launch_daemon, $command);
} else {
$future = new ExecFuture('exec %C', $command);
// Play games to keep 'ps' looking reasonable.
$future->setCWD($launch_daemon);
$future->resolvex();
}
}
public static function ignoreSignal($signo) {
return;
}
private function getControlDirectory($path) {
if (!Filesystem::pathExists($path)) {
list($err) = exec_manual('mkdir -p %s', $path);
if ($err) {
throw new Exception(
"phd requires the directory '{$path}' to exist, but it does not ".
"exist and could not be created. Create this directory or update ".
"'phd.pid-directory' / 'phd.log-directory' in your configuration ".
"to point to an existing directory.");
}
}
return $path;
}
public function getPIDDirectory() {
$path = PhabricatorEnv::getEnvConfig('phd.pid-directory');
return $this->getControlDirectory($path);
}
public function getLogDirectory() {
$path = PhabricatorEnv::getEnvConfig('phd.log-directory');
return $this->getControlDirectory($path);
}
protected function loadAvailableDaemonClasses() {
$loader = new PhutilSymbolLoader();
return $loader
->setAncestorClass('PhutilDaemon')
->setConcreteOnly(true)
->selectSymbolsWithoutLoading();
}
public function loadRunningDaemons() {
$results = array();
$pid_dir = $this->getPIDDirectory();
$pid_files = Filesystem::listDirectory($pid_dir);
if (!$pid_files) {
return $results;
}
foreach ($pid_files as $pid_file) {
$pid_data = Filesystem::readFile($pid_dir.'/'.$pid_file);
$dict = json_decode($pid_data, true);
if (!is_array($dict)) {
// Just return a hanging reference, since control code needs to be
// robust against unusual system states.
$dict = array();
}
$ref = PhabricatorDaemonReference::newFromDictionary($dict);
$ref->setPIDFile($pid_dir.'/'.$pid_file);
$results[] = $ref;
}
return $results;
}
protected function killDaemon(PhabricatorDaemonReference $ref) {
}
}
diff --git a/src/infrastructure/daemon/control/PhabricatorDaemonReference.php b/src/infrastructure/daemon/control/PhabricatorDaemonReference.php
index 1af743ac35..c6f82e0a74 100644
--- a/src/infrastructure/daemon/control/PhabricatorDaemonReference.php
+++ b/src/infrastructure/daemon/control/PhabricatorDaemonReference.php
@@ -1,110 +1,128 @@
<?php
/*
* Copyright 2012 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
final class PhabricatorDaemonReference {
private $name;
private $pid;
private $start;
private $pidFile;
private $daemonLog;
public static function newFromDictionary(array $dict) {
$ref = new PhabricatorDaemonReference();
$ref->name = idx($dict, 'name', 'Unknown');
$ref->pid = idx($dict, 'pid');
$ref->start = idx($dict, 'start');
return $ref;
}
- public function loadDaemonLog() {
- if (!$this->daemonLog) {
- $this->daemonLog = id(new PhabricatorDaemonLog())->loadOneWhere(
- 'daemon = %s AND pid = %d AND dateCreated = %d',
- $this->name,
- $this->pid,
- $this->start);
+ public function updateStatus($new_status) {
+ try {
+ if (!$this->daemonLog) {
+ $this->daemonLog = id(new PhabricatorDaemonLog())->loadOneWhere(
+ 'daemon = %s AND pid = %d AND dateCreated = %d',
+ $this->name,
+ $this->pid,
+ $this->start);
+ }
+
+ if ($this->daemonLog) {
+ $this->daemonLog
+ ->setStatus($new_status)
+ ->save();
+ }
+ } catch (AphrontQueryException $ex) {
+ // Ignore anything that goes wrong here. We anticipate at least two
+ // specific failure modes:
+ //
+ // - Upgrade scripts which run `git pull`, then `phd stop`, then
+ // `bin/storage upgrade` will fail when trying to update the `status`
+ // column, as it does not exist yet.
+ // - Daemons running on machines which do not have access to MySQL
+ // (like an IRC bot) will not be able to load or save the log.
+ //
+ //
}
- return $this->daemonLog;
}
public function getPID() {
return $this->pid;
}
public function getName() {
return $this->name;
}
public function getEpochStarted() {
return $this->start;
}
public function setPIDFile($pid_file) {
$this->pidFile = $pid_file;
return $this;
}
public function getPIDFile() {
return $this->pidFile;
}
public function isRunning() {
return self::isProcessRunning($this->getPID());
}
public static function isProcessRunning($pid) {
if (!$pid) {
return false;
}
if (function_exists('posix_kill')) {
// This may fail if we can't signal the process because we are running as
// a different user (for example, we are 'apache' and the process is some
// other user's, or we are a normal user and the process is root's), but
// we can check the error code to figure out if the process exists.
$is_running = posix_kill($pid, 0);
if (posix_get_last_error() == 1) {
// "Operation Not Permitted", indicates that the PID exists. If it
// doesn't, we'll get an error 3 ("No such process") instead.
$is_running = true;
}
} else {
// If we don't have the posix extension, just exec.
list($err) = exec_manual('ps %s', $pid);
$is_running = ($err == 0);
}
return $is_running;
}
public function waitForExit($seconds) {
$start = time();
while (time() < $start + $seconds) {
usleep(100000);
if (!$this->isRunning()) {
return true;
}
}
return !$this->isRunning();
}
}

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