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Code Issues Releases Wiki Activity

Save daemon state to database

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Summary:
To make it easier to monitor daemons, let's store their current state
(running, died, exited, or unknown) to the db. The purpose of this is to
provide more information on the daemon console about the status of daemons,
especially when they are running on multiple machines. This is mostly backend
work, with only a few frontend changes. (It is also dependent on a change
to libphutil.)

These changes will make dead or stuck daemons more obvious, and will allow
more work on the frontend to hide daemons (and logs) that have exited cleanly,
i.e. ones we don't care about any more.

Test Plan:
- run db migration, check in db that all daemons were marked as exited
- start up a daemon, check in db that it is marked as running
- open web interface, check that daemon is listed as running
- after daemon has been running for a little bit, check in db that dateModified
  is being updated (indicating daemon is properly sending heartbeat)
- kill -9 daemon (but don't run bin/phd yet), and check that db still shows it
  as running
- edit daemon db entry to show it as being on a different host, and backdate
  dateModified field by 3 minutes, and check the web ui to show that the status
  is unknown.
- change db entry to have proper host, check in web ui that daemon status is
  displayed as dead. Check db to see that the status was saved.
- run bin/phd stop, and see that the formerly dead daemon is now exited.

Reviewers: epriestley, vrana

Reviewed By: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D3126
This commit is contained in:
Nick Harper 2012-08-01 17:06:04 -07:00
parent 6e1f5e353a
commit 88caa45854
9 changed files with 155 additions and 26 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
resources/sql/patches/daemonstatus.sql Normal file
View file

@ -0,0 +1,4 @@
ALTER TABLE {$NAMESPACE}_daemon.daemon_log
ADD COLUMN `status` varchar(8) NOT NULL;
UPDATE {$NAMESPACE}_daemon.daemon_log SET `status`='exit';

2
src/__phutil_library_map__.php
View file

@ -112,6 +112,7 @@ phutil_register_library_map(array(
'ConduitAPI_conduit_ping_Method' => 'applications/conduit/method/conduit/ConduitAPI_conduit_ping_Method.php',
'ConduitAPI_daemon_launched_Method' => 'applications/conduit/method/daemon/ConduitAPI_daemon_launched_Method.php',
'ConduitAPI_daemon_log_Method' => 'applications/conduit/method/daemon/ConduitAPI_daemon_log_Method.php',
'ConduitAPI_daemon_setstatus_Method' => 'applications/conduit/method/daemon/ConduitAPI_daemon_setstatus_Method.php',
'ConduitAPI_differential_Method' => 'applications/conduit/method/differential/ConduitAPI_differential_Method.php',
'ConduitAPI_differential_close_Method' => 'applications/conduit/method/differential/ConduitAPI_differential_close_Method.php',
'ConduitAPI_differential_createcomment_Method' => 'applications/conduit/method/differential/ConduitAPI_differential_createcomment_Method.php',
@ -1229,6 +1230,7 @@ phutil_register_library_map(array(
'ConduitAPI_conduit_ping_Method' => 'ConduitAPIMethod',
'ConduitAPI_daemon_launched_Method' => 'ConduitAPIMethod',
'ConduitAPI_daemon_log_Method' => 'ConduitAPIMethod',
'ConduitAPI_daemon_setstatus_Method' => 'ConduitAPIMethod',
'ConduitAPI_differential_Method' => 'ConduitAPIMethod',
'ConduitAPI_differential_close_Method' => 'ConduitAPIMethod',
'ConduitAPI_differential_createcomment_Method' => 'ConduitAPIMethod',

1
src/applications/conduit/method/daemon/ConduitAPI_daemon_launched_Method.php
View file

@ -58,6 +58,7 @@ final class ConduitAPI_daemon_launched_Method extends ConduitAPIMethod {
$daemon_log->setDaemon($request->getValue('daemon'));
$daemon_log->setHost($request->getValue('host'));
$daemon_log->setPID($request->getValue('pid'));
$daemon_log->setStatus(PhabricatorDaemonLog::STATUS_RUNNING);
$daemon_log->setArgv(json_decode($request->getValue('argv')));
$daemon_log->save();

66
src/applications/conduit/method/daemon/ConduitAPI_daemon_setstatus_Method.php Normal file
View file

@ -0,0 +1,66 @@
<?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.
*/
/**
* @group conduit
*/
final class ConduitAPI_daemon_setstatus_Method extends ConduitAPIMethod {
public function shouldRequireAuthentication() {
// TODO: Lock this down once we build phantoms.
return false;
}
public function shouldAllowUnguardedWrites() {
return true;
}
public function getMethodDescription() {
return "Used by daemons to update their status.";
}
public function defineParamTypes() {
return array(
'daemonLogID' => 'required string',
'status' => 'required enum<unknown, run, timeout, dead, exit>',
);
}
public function defineReturnType() {
return 'void';
}
public function defineErrorTypes() {
return array(
'ERR-INVALID-ID' => 'An invalid daemonLogID was provided.',
);
}
protected function execute(ConduitAPIRequest $request) {
$daemon_log = id(new PhabricatorDaemonLog())
->load($request->getValue('daemonLogID'));
if (!$daemon_log) {
throw new ConduitException('ERR-INVALID-ID');
}
$daemon_log->setStatus($request->getValue('status'));
$daemon_log->save();
}
}

74
src/applications/daemon/view/PhabricatorDaemonLogListView.php
View file

@ -42,38 +42,60 @@ final class PhabricatorDaemonLogListView extends AphrontView {
foreach ($this->daemonLogs as $log) {
$epoch = $log->getDateCreated();
if ($log->getHost() == php_uname('n')) {
$status = $log->getStatus();
if ($log->getHost() == php_uname('n') &&
$status != PhabricatorDaemonLog::STATUS_EXITED &&
$status != PhabricatorDaemonLog::STATUS_DEAD) {
$pid = $log->getPID();
$is_running = PhabricatorDaemonReference::isProcessRunning($pid);
if ($is_running) {
$running = phutil_render_tag(
'span',
array(
'style' => 'color: #00cc00',
'title' => 'Running',
),
'&bull;');
} else {
$running = phutil_render_tag(
'span',
array(
'style' => 'color: #cc0000',
'title' => 'Not running',
),
'&bull;');
if (!$is_running) {
$guard = AphrontWriteGuard::beginScopedUnguardedWrites();
$log->setStatus(PhabricatorDaemonLog::STATUS_DEAD);
$log->save();
unset($guard);
$status = PhabricatorDaemonLog::STATUS_DEAD;
}
} else {
$running = phutil_render_tag(
'span',
array(
'style' => 'color: #888888',
'title' => 'Not on this host',
),
'?');
}
$heartbeat_timeout =
$log->getDateModified() + 3 * PhutilDaemonOverseer::HEARTBEAT_WAIT;
if ($status == PhabricatorDaemonLog::STATUS_RUNNING &&
$heartbeat_timeout < time()) {
$status = PhabricatorDaemonLog::STATUS_UNKNOWN;
}
switch ($status) {
case PhabricatorDaemonLog::STATUS_RUNNING:
$style = 'color: #00cc00';
$title = 'Running';
$symbol = '&bull;';
break;
case PhabricatorDaemonLog::STATUS_DEAD:
$style = 'color: #cc0000';
$title = 'Died';
$symbol = '&bull;';
break;
case PhabricatorDaemonLog::STATUS_EXITED:
$style = 'color: #000000';
$title = 'Exited';
$symbol = '&bull;';
break;
case PhabricatorDaemonLog::STATUS_UNKNOWN:
default: // fallthrough
$style = 'color: #888888';
$title = 'Unknown';
$symbol = '?';
}
$running = phutil_render_tag(
'span',
array(
'style' => $style,
'title' => $title,
),
$symbol);
$rows[] = array(
$running,
phutil_escape_html($log->getDaemon()),

11
src/infrastructure/daemon/PhabricatorDaemonControl.php
View file

@ -53,6 +53,12 @@ final class PhabricatorDaemonControl {
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();
}
$status = 2;
$name = '<DEAD> '.$name;
}
@ -110,6 +116,11 @@ final class PhabricatorDaemonControl {
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);
$daemon_log->save();
}
} else {
posix_kill($pid, SIGINT);
}

13
src/infrastructure/daemon/control/PhabricatorDaemonReference.php
View file

@ -23,6 +23,8 @@ final class PhabricatorDaemonReference {
private $start;
private $pidFile;
private $daemonLog;
public static function newFromDictionary(array $dict) {
$ref = new PhabricatorDaemonReference();
@ -33,6 +35,17 @@ final class PhabricatorDaemonReference {
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);
}
return $this->daemonLog;
}
public function getPID() {
return $this->pid;
}

6
src/infrastructure/daemon/storage/PhabricatorDaemonLog.php
View file

@ -18,10 +18,16 @@
final class PhabricatorDaemonLog extends PhabricatorDaemonDAO {
const STATUS_UNKNOWN = 'unknown';
const STATUS_RUNNING = 'run';
const STATUS_DEAD = 'dead';
const STATUS_EXITED = 'exit';
protected $daemon;
protected $host;
protected $pid;
protected $argv;
protected $status;
public function getConfiguration() {
return array(

4
src/infrastructure/storage/patch/PhabricatorBuiltinPatchList.php
View file

@ -932,6 +932,10 @@ final class PhabricatorBuiltinPatchList extends PhabricatorSQLPatchList {
'type' => 'php',
'name' => $this->getPatchPath('migrate-maniphest-revisions.php'),
),
'daemonstatus.sql' => array(
'type' => 'sql',
'name' => $this->getPatchPath('daemonstatus.sql'),
),
);
}