function takeScheduledBackupSnapshot(backupJob $job)
{
global $config;
$scheduledBackup = $job->getScheduledBackup();
// First fetch info to know what we're backing up
// Validate the parameters of this backup, before we proceed.
$params = $scheduledBackup->getParameters();
$this->validateParams($params);
// Get info on the backup
$sbInfo = $scheduledBackup->getInfo();
// Get the host of the backup
$sbHost = $scheduledBackup->getHost();
$hostInfo = $sbHost->getInfo();
// Setup to write to host log
if (!is_object($this->infolog)) {
$infolog = new logStream($config['LOGS']['logdir'] . '/hosts/' . $hostInfo['hostname'] . '.log', $this->infologVerbose, $config['LOGS']['level']);
$this->setInfoLogStream($infolog);
}
$backupTaker = new genericBackupTaker();
$backupTaker->setInfoLogStream($this->infolog);
$backupTaker->setTicketsToReleaseOnStart($this->ticketsToReleaseOnStart);
$sbGroups = $scheduledBackup->getSnapshotGroupsNewestToOldest();
// If there is one group and no backup yet, take a full backup for group 0
if (sizeOf($sbGroups) == 1 && $sbGroups[0]->getSeed() === false) {
$backupTaker->takeFullBackupSnapshot($job, $sbGroups[0]);
} else {
// Otherwise, create the next group and take the next backup there...
$newGroup = $this->groupFactory->getNextSnapshotGroup($sbGroups[0]);
$backupTaker->takeFullBackupSnapshot($job, $newGroup);
}
return true;
}
function takeScheduledBackupSnapshot(backupJob $job)
{
global $config;
$scheduledBackup = $job->getScheduledBackup();
// First fetch info to know what we're backing up
// Validate the parameters of this backup, before we proceed.
$params = $scheduledBackup->getParameters();
$this->validateParams($params);
// Get info on the backup
$sbInfo = $scheduledBackup->getInfo();
// Get the host of the backup
$sbHost = $scheduledBackup->getHost();
$hostInfo = $sbHost->getInfo();
// Setup to write to host log
if (!is_object($this->infolog)) {
$infolog = new logStream($config['LOGS']['logdir'] . '/hosts/' . $hostInfo['hostname'] . '.log', $this->infologVerbose, $config['LOGS']['level']);
$this->setInfoLogStream($infolog);
}
$backupTaker = new genericBackupTaker();
$backupTaker->setInfoLogStream($this->infolog);
$backupTaker->setTicketsToReleaseOnStart($this->ticketsToReleaseOnStart);
$sbGroups = $scheduledBackup->getSnapshotGroupsNewestToOldest();
// There should only be one group...
if (sizeOf($sbGroups) > 1) {
throw new Exception('continuousIncrementalBackupTaker->takeScheduledBackupSnapshot: ' . "Error: Found more than one snapshot group for a backup using continuous incremental strategy.");
}
// Find if there is a seed..
$seedSnap = $sbGroups[0]->getSeed();
// If this group has a seed snapshot, then take incremental...
if ($seedSnap) {
$backupTaker->takeIncrementalBackupSnapshot($job, $sbGroups[0], $sbGroups[0]->getMostRecentCompletedBackupSnapshot());
// Otherwise take a FULL backup
} else {
$backupTaker->takeFullBackupSnapshot($job, $sbGroups[0]);
}
return true;
}
function takeScheduledBackupSnapshot(backupJob $job)
{
global $config;
$scheduledBackup = $job->getScheduledBackup();
// First fetch info to know what we're backing up
// Get info on the backup
$sbInfo = $scheduledBackup->getInfo();
// Get the host of the backup
$sbHost = $scheduledBackup->getHost();
$hostInfo = $sbHost->getInfo();
// Setup to write to host log
if (!is_object($this->infolog)) {
$infolog = new logStream($config['LOGS']['logdir'] . '/hosts/' . $hostInfo['hostname'] . '.log', $this->infologVerbose, $config['LOGS']['level']);
$this->setInfoLogStream($infolog);
}
// Get the params for the scheduledBackup and validate them...
$sbParams = $scheduledBackup->getParameters();
$this->validateParams($sbParams);
// create a generic backup taker to use for snapshot taking.
$backupTaker = new genericBackupTaker();
$backupTaker->setInfoLogStream($this->infolog);
$backupTaker->setTicketsToReleaseOnStart($this->ticketsToReleaseOnStart);
// Get the snpshot groups for this scheduled backup
$snapshotGroups = $scheduledBackup->getSnapshotGroupsNewestToOldest();
//
// Handle the case where we dont have any snapshots yet at all.
//
$this->infolog->write("Using " . $sbParams['rotate_method'] . " as the rotation method...", XBM_LOG_INFO);
// if we have only one group...
if (sizeOf($snapshotGroups) == 1) {
// and we dont even have a seed yet...
if ($snapshotGroups[0]->getSeed() === false) {
// take a seed snapshot and then return
$this->infolog->write("No snapshots found for this scheduled backup at all - taking an initial full backup.", XBM_LOG_INFO);
$backupTaker->takeFullBackupSnapshot($job, $snapshotGroups[0]);
return true;
}
}
// Now handle things based on rotate_method...
switch ($sbParams['rotate_method']) {
case 'DAY_OF_WEEK':
// Figure out what day of the week it is.
$launchDayOfWeek = date('w', $this->launchTime);
// is it the day of the week we should be rotating?
$rotateDays = explode(',', $sbParams['rotate_day_of_week']);
// This is kind of stupid but it was quicker than trying to coerce date functions to play nice.
$dayList = array(0 => 'Sunday', 1 => 'Monday', 2 => 'Tuesday', 3 => 'Wednesday', 4 => 'Thursday', 5 => 'Friday', 6 => 'Saturday');
$msg = "Set to rotate on: ";
foreach ($rotateDays as $dayOfWeek) {
$msg .= $dayList[$dayOfWeek] . " ";
}
$this->infolog->write($msg, XBM_LOG_INFO);
$this->infolog->write("This backup was launched on a " . $dayList[$launchDayOfWeek], XBM_LOG_INFO);
// if yes..
if (in_array($launchDayOfWeek, $rotateDays)) {
$this->infolog->write("Based on the launch time of this backup, a rotate should be attempted.. checking if we already rotated today...", XBM_LOG_INFO);
// get the seed of the newest group and find out what day it was taken
$newestSeed = $snapshotGroups[0]->getSeed();
$seedInfo = $newestSeed->getInfo();
$seedDate = date('Ymd', strtotime($seedInfo['creation_time']));
$launchDate = date('Ymd', $this->launchTime);
// was the seed taken today ?
// if no, create next group and take seed
if ($launchDate != $seedDate) {
$this->infolog->write("No FULL backup found today - rotating to the next snapshot group and taking a full backup for it.", XBM_LOG_INFO);
$newGroup = $this->groupFactory->getNextSnapshotGroup($snapshotGroups[0]);
$backupTaker->takeFullBackupSnapshot($job, $newGroup);
return true;
}
$this->infolog->write("Found that we already took a FULL backup today, no rotation needed - proceeding to take an incremental.", XBM_LOG_INFO);
} else {
$this->infolog->write("Based on the launch time of this backup, no rotation should occur today - proceeding to take an incremental.", XBM_LOG_INFO);
}
// we get here if either
// a) its not the day of week to take a seed
// b) it is the day of week to take a seed, but we already took one
// check to see if we can go ahead and take an incremental for the current group in that case..
// how many snapshots do we have in the current group?
$snapshots = $snapshotGroups[0]->getAllSnapshotsNewestToOldest();
// is it >= max?
// if yes - stop and if we treat this critical throw an exception/failure
if (sizeOf($snapshots) >= $sbParams['max_snapshots_per_group']) {
if (!isset($sbParams['backup_skip_fatal']) || $sbParams['backup_skip_fatal'] == 1) {
throw new Exception('rotatingBackupTaker->takeScheduledBackupSnapshot: ' . "Error: Refusing to take another backup, as max_snapshots_per_group would be exceeded.");
}
$this->infolog->write("Refusing to take another backup, as max_snapshots_per_group would be exceeded. Not treating as fatal due to backup_skip_fatal being disabled.", XBM_LOG_INFO);
return true;
}
// if no, go ahead and take incremental
$backupTaker->takeIncrementalBackupSnapshot($job, $snapshotGroups[0], $snapshotGroups[0]->getMostRecentCompletedBackupSnapshot());
break;
case 'AFTER_SNAPSHOT_COUNT':
// get the number of snapshots in the newest group
$snaps = $snapshotGroups[0]->getAllSnapshotsNewestToOldest();
$this->infolog->write("Detected " . sizeOf($snaps) . " snapshots in current group and we are configured to rotate after number " . $sbParams['rotate_snapshot_no'] . ".", XBM_LOG_INFO);
// is it >= maximum?
if (sizeOf($snaps) >= $sbParams['rotate_snapshot_no']) {
$this->infolog->write("Rotating to the next group and taking a full backup for it.", XBM_LOG_INFO);
// if yes, create new group and take seed
$newGroup = $this->groupFactory->getNextSnapshotGroup($snapshotGroups[0]);
$backupTaker->takeFullBackupSnapshot($job, $newGroup);
return true;
} else {
// if no, create new incremental in current group based on the most recent complete snap for the group
$this->infolog->write("No group rotation needed - proceeding with incremental backup.", XBM_LOG_INFO);
$backupTaker->takeIncrementalBackupSnapshot($job, $snapshotGroups[0], $snapshotGroups[0]->getMostRecentCompletedBackupSnapshot());
return true;
}
break;
default:
throw new Exception('rotatingBackupTaker->takeScheduledBackupSnapshot: ' . "Error: Could not find a handler for this rotate_method. This should never happen.");
}
return true;
}