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D15791.id38051.diff
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D15791.id38051.diff

diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -746,6 +746,7 @@
'DiffusionRepositoryBasicsManagementPanel' => 'applications/diffusion/management/DiffusionRepositoryBasicsManagementPanel.php',
'DiffusionRepositoryByIDRemarkupRule' => 'applications/diffusion/remarkup/DiffusionRepositoryByIDRemarkupRule.php',
'DiffusionRepositoryClusterEngine' => 'applications/diffusion/protocol/DiffusionRepositoryClusterEngine.php',
+ 'DiffusionRepositoryClusterEngineLogInterface' => 'applications/diffusion/protocol/DiffusionRepositoryClusterEngineLogInterface.php',
'DiffusionRepositoryClusterManagementPanel' => 'applications/diffusion/management/DiffusionRepositoryClusterManagementPanel.php',
'DiffusionRepositoryController' => 'applications/diffusion/controller/DiffusionRepositoryController.php',
'DiffusionRepositoryCreateController' => 'applications/diffusion/controller/DiffusionRepositoryCreateController.php',
@@ -4854,7 +4855,10 @@
'DiffusionGitReceivePackSSHWorkflow' => 'DiffusionGitSSHWorkflow',
'DiffusionGitRequest' => 'DiffusionRequest',
'DiffusionGitResponse' => 'AphrontResponse',
- 'DiffusionGitSSHWorkflow' => 'DiffusionSSHWorkflow',
+ 'DiffusionGitSSHWorkflow' => array(
+ 'DiffusionSSHWorkflow',
+ 'DiffusionRepositoryClusterEngineLogInterface',
+ ),
'DiffusionGitUploadPackSSHWorkflow' => 'DiffusionGitSSHWorkflow',
'DiffusionHistoryController' => 'DiffusionController',
'DiffusionHistoryQueryConduitAPIMethod' => 'DiffusionQueryConduitAPIMethod',
diff --git a/src/applications/diffusion/protocol/DiffusionRepositoryClusterEngine.php b/src/applications/diffusion/protocol/DiffusionRepositoryClusterEngine.php
--- a/src/applications/diffusion/protocol/DiffusionRepositoryClusterEngine.php
+++ b/src/applications/diffusion/protocol/DiffusionRepositoryClusterEngine.php
@@ -13,6 +13,7 @@
private $viewer;
private $clusterWriteLock;
private $clusterWriteVersion;
+ private $logger;
/* -( Configuring Synchronization )---------------------------------------- */
@@ -36,6 +37,11 @@
return $this->viewer;
}
+ public function setLog(DiffusionRepositoryClusterEngineLogInterface $log) {
+ $this->logger = $log;
+ return $this;
+ }
+
/* -( Cluster Synchronization )-------------------------------------------- */
@@ -92,8 +98,36 @@
$repository_phid,
$device_phid);
- // TODO: Raise a more useful exception if we fail to grab this lock.
- $read_lock->lock(phutil_units('2 minutes in seconds'));
+ $lock_wait = phutil_units('2 minutes in seconds');
+
+ $this->logLine(
+ pht(
+ 'Waiting up to %s second(s) for a cluster read lock on "%s"...',
+ new PhutilNumber($lock_wait),
+ $device->getName()));
+
+ try {
+ $start = PhabricatorTime::getNow();
+ $read_lock->lock($lock_wait);
+ $waited = (PhabricatorTime::getNow() - $start);
+
+ if ($waited) {
+ $this->logLine(
+ pht(
+ 'Acquired read lock after %s second(s).',
+ new PhutilNumber($waited)));
+ } else {
+ $this->logLine(
+ pht(
+ 'Acquired read lock immediately.'));
+ }
+ } catch (Exception $ex) {
+ throw new PhutilProxyException(
+ pht(
+ 'Failed to acquire read lock after waiting %s second(s). You '.
+ 'may be able to retry later.',
+ new PhutilNumber($lock_wait)));
+ }
$versions = PhabricatorRepositoryWorkingCopyVersion::loadVersions(
$repository_phid);
@@ -126,6 +160,12 @@
$repository_phid,
$device_phid,
$max_version);
+ } else {
+ $this->logLine(
+ pht(
+ 'Device "%s" is already a cluster leader and does not need '.
+ 'to be synchronized.',
+ $device->getName()));
}
$result_version = $max_version;
@@ -210,8 +250,35 @@
$write_lock = PhabricatorRepositoryWorkingCopyVersion::getWriteLock(
$repository_phid);
- // TODO: Raise a more useful exception if we fail to grab this lock.
- $write_lock->lock(phutil_units('2 minutes in seconds'));
+ $lock_wait = phutil_units('2 minutes in seconds');
+
+ $this->logLine(
+ pht(
+ 'Waiting up to %s second(s) for a cluster write lock...',
+ new PhutilNumber($lock_wait)));
+
+ try {
+ $start = PhabricatorTime::getNow();
+ $write_lock->lock($lock_wait);
+ $waited = (PhabricatorTime::getNow() - $start);
+
+ if ($waited) {
+ $this->logLine(
+ pht(
+ 'Acquired write lock after %s second(s).',
+ new PhutilNumber($waited)));
+ } else {
+ $this->logLine(
+ pht(
+ 'Acquired write lock immediately.'));
+ }
+ } catch (Exception $ex) {
+ throw new PhutilProxyException(
+ pht(
+ 'Failed to acquire write lock after waiting %s second(s). You '.
+ 'may be able to retry later.',
+ new PhutilNumber($lock_wait)));
+ }
$versions = PhabricatorRepositoryWorkingCopyVersion::loadVersions(
$repository_phid);
@@ -393,13 +460,20 @@
*/
private function synchronizeWorkingCopyFromBinding($binding) {
$repository = $this->getRepository();
+ $device = AlmanacKeys::getLiveDevice();
+
+ $this->logLine(
+ pht(
+ 'Synchronizing this device ("%s") from cluster leader ("%s") before '.
+ 'read.',
+ $device->getName(),
+ $binding->getDevice()->getName()));
$fetch_uri = $repository->getClusterRepositoryURIFromBinding($binding);
$local_path = $repository->getLocalPath();
if ($repository->isGit()) {
if (!Filesystem::pathExists($local_path)) {
- $device = AlmanacKeys::getLiveDevice();
throw new Exception(
pht(
'Repository "%s" does not have a working copy on this device '.
@@ -429,7 +503,36 @@
$future->setCWD($local_path);
- $future->resolvex();
+ try {
+ $future->resolvex();
+ } catch (Exception $ex) {
+ $this->logLine(
+ pht(
+ 'Synchronization of "%s" from leader "%s" failed: %s',
+ $device->getName(),
+ $binding->getDevice()->getName(),
+ $ex->getMessage()));
+ throw $ex;
+ }
+ }
+
+
+ /**
+ * @task internal
+ */
+ private function logLine($message) {
+ return $this->logText("# {$message}\n");
}
+
+ /**
+ * @task internal
+ */
+ private function logText($message) {
+ $log = $this->logger;
+ if ($log) {
+ $log->writeClusterEngineLogMessage($message);
+ }
+ return $this;
+ }
}
diff --git a/src/applications/diffusion/protocol/DiffusionRepositoryClusterEngineLogInterface.php b/src/applications/diffusion/protocol/DiffusionRepositoryClusterEngineLogInterface.php
new file mode 100644
--- /dev/null
+++ b/src/applications/diffusion/protocol/DiffusionRepositoryClusterEngineLogInterface.php
@@ -0,0 +1,7 @@
+<?php
+
+interface DiffusionRepositoryClusterEngineLogInterface {
+
+ public function writeClusterEngineLogMessage($message);
+
+}
diff --git a/src/applications/diffusion/ssh/DiffusionGitReceivePackSSHWorkflow.php b/src/applications/diffusion/ssh/DiffusionGitReceivePackSSHWorkflow.php
--- a/src/applications/diffusion/ssh/DiffusionGitReceivePackSSHWorkflow.php
+++ b/src/applications/diffusion/ssh/DiffusionGitReceivePackSSHWorkflow.php
@@ -16,21 +16,37 @@
protected function executeRepositoryOperations() {
$repository = $this->getRepository();
$viewer = $this->getViewer();
+ $device = AlmanacKeys::getLiveDevice();
// This is a write, and must have write access.
$this->requireWriteAccess();
$cluster_engine = id(new DiffusionRepositoryClusterEngine())
->setViewer($viewer)
- ->setRepository($repository);
+ ->setRepository($repository)
+ ->setLog($this);
if ($this->shouldProxy()) {
$command = $this->getProxyCommand();
$did_synchronize = false;
+
+ if ($device) {
+ $this->writeClusterEngineLogMessage(
+ pht(
+ "# Push received by \"%s\", forwarding to cluster host.\n",
+ $device->getName()));
+ }
} else {
$command = csprintf('git-receive-pack %s', $repository->getLocalPath());
$did_synchronize = true;
$cluster_engine->synchronizeWorkingCopyBeforeWrite();
+
+ if ($device) {
+ $this->writeClusterEngineLogMessage(
+ pht(
+ "# Ready to receive on cluster host \"%s\".\n",
+ $device->getName()));
+ }
}
$caught = null;
diff --git a/src/applications/diffusion/ssh/DiffusionGitSSHWorkflow.php b/src/applications/diffusion/ssh/DiffusionGitSSHWorkflow.php
--- a/src/applications/diffusion/ssh/DiffusionGitSSHWorkflow.php
+++ b/src/applications/diffusion/ssh/DiffusionGitSSHWorkflow.php
@@ -1,12 +1,18 @@
<?php
-abstract class DiffusionGitSSHWorkflow extends DiffusionSSHWorkflow {
+abstract class DiffusionGitSSHWorkflow
+ extends DiffusionSSHWorkflow
+ implements DiffusionRepositoryClusterEngineLogInterface {
protected function writeError($message) {
// Git assumes we'll add our own newlines.
return parent::writeError($message."\n");
}
+ public function writeClusterEngineLogMessage($message) {
+ parent::writeError($message);
+ }
+
protected function identifyRepository() {
$args = $this->getArgs();
$path = head($args->getArg('dir'));
diff --git a/src/applications/diffusion/ssh/DiffusionGitUploadPackSSHWorkflow.php b/src/applications/diffusion/ssh/DiffusionGitUploadPackSSHWorkflow.php
--- a/src/applications/diffusion/ssh/DiffusionGitUploadPackSSHWorkflow.php
+++ b/src/applications/diffusion/ssh/DiffusionGitUploadPackSSHWorkflow.php
@@ -16,18 +16,34 @@
protected function executeRepositoryOperations() {
$repository = $this->getRepository();
$viewer = $this->getUser();
+ $device = AlmanacKeys::getLiveDevice();
$skip_sync = $this->shouldSkipReadSynchronization();
if ($this->shouldProxy()) {
$command = $this->getProxyCommand();
+
+ if ($device) {
+ $this->writeClusterEngineLogMessage(
+ pht(
+ "# Fetch received by \"%s\", forwarding to cluster host.\n",
+ $device->getName()));
+ }
} else {
$command = csprintf('git-upload-pack -- %s', $repository->getLocalPath());
if (!$skip_sync) {
$cluster_engine = id(new DiffusionRepositoryClusterEngine())
->setViewer($viewer)
->setRepository($repository)
+ ->setLog($this)
->synchronizeWorkingCopyBeforeRead();
+
+ if ($device) {
+ $this->writeClusterEngineLogMessage(
+ pht(
+ "# Cleared to fetch on cluster host \"%s\".\n",
+ $device->getName()));
+ }
}
}
$command = PhabricatorDaemon::sudoCommandAsDaemonUser($command);

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