diff --git a/.gitignore b/.gitignore
index f3b2c9f0..867f810d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,9 @@
 bulktest/wptkey.inc.php
+bulktest/batch.log*
+bulktest/httparchive_batch_lock*
 node_modules/
 tmp/
 downloads/
 harviewer/
 *.log
+*nohup.out
diff --git a/bulktest/batch_lib.inc b/bulktest/batch_lib.inc
index 77a2b6c6..d7848f6f 100644
--- a/bulktest/batch_lib.inc
+++ b/bulktest/batch_lib.inc
@@ -27,7 +27,7 @@ define("DONE", 4);
 // The status table saves $gErrBase + i to indicate that there is a permanent error happens when the test is in the status i.
 $gErrBase = 900;
 // The list of tasks for a batch run.
-$gNumParse = 5; // the number of parse tasks to fork
+$gNumParse = 10; // the number of parse tasks to fork
 $gaTasks = array("submit", "status", "obtain");
 for ( $i = 1; $i <= $gNumParse; $i++ ) {
 	array_push($gaTasks, "parse" . $i); // dynamically create the desired number of parse tasks
@@ -91,12 +91,10 @@ function submitTest(&$record, $status) {
 
 	$wptServer = wptServer();
 	$location = $record['location'];
-	/*
 	if ($location == 'California:Chrome.3G') {
 		$location = 'California:Chrome.4G';
 	}
-	*/
-	$request = $wptServer . 'runtest.php?f=xml&priority=6&timeline=1&url=' . urlencode($record['url']) . 
+	$request = $wptServer . 'runtest.php?f=xml&debug=1&priority=6&timeline=1&url=' . urlencode($record['url']) . 
 		"&location=$location&runs=$runs" .
 		( $private ? "&private=1" : "" ) .
 		( $video ? "&video=1" : "" ) .
@@ -138,10 +136,18 @@ function submitTest(&$record, $status) {
 
 // Submit the batch test to WPT server.
 function submitBatch() {
+	global $gMaxQueueLength;
+	$submittedTests = countTestsWithCode(SUBMITTED);
 	$unsubmitTests = obtainTestsWithCode(NOT_STARTED);
 	if ( !isEmptyQuery($unsubmitTests) ) {
 		while ($row = mysqli_fetch_assoc($unsubmitTests)) {
 			submitTest($row, 0);
+			// Limit the number of in-flight tests
+			if ($gMaxQueueLength) {
+				$submittedTests++;
+				if ($submittedTests >= $gMaxQueueLength)
+					break;
+			}
 		}
 	}
 }
@@ -180,13 +186,13 @@ function checkWPTStatus() {
 						$nNoResult = 0; // reset
 						setStatus($row['statusid'], SUBMIT_DONE);
 					} 
-					elseif ( 400 <= $code ) {
+					elseif ( 400 <= $code || 100 > $code ) {
 						$nNoResult = 0; // reset
 						setStatus($row['statusid'], SUBMITTED + $gErrBase);
 					}
 					else {
 						$nNoResult++;
-						if ( $nNoResult > 200 ) {
+						if ( $nNoResult > 2000 ) {
 							// Quick bail:
 							// If we've exhausted all the completed results we do NOT want
 							// to continue checking EVERY remaining test. So instead we bail
@@ -966,7 +972,10 @@ function prettyType($mimeType, $ext) {
 	else if ( "xml" === $ext ) {
 		return "xml";
 	}
-	else if ( false !== strpos($mimeType, "flash") || "mp4" === $ext || "swf" === $ext || "f4v" === $ext || "flv" === $ext ) {
+    //Video extensions mp4, webm, ts, m4v, m4s, m4v, mov, ogv
+	else if ( false !== strpos($mimeType, "flash") || false !== strpos($mimeType, "webm") || false !== strpos($mimeType, "mp4") || false !== strpos($mimeType, "flv")
+       ||  "mp4" === $ext || "webm" === $ext || "ts" == $ext || "m4v" === $ext || "m4s" === $ext || "mov" === $ext || "ogv" === $ext
+       ||  "swf" === $ext || "f4v" === $ext || "flv" === $ext ) {
 		return "video";
 	}
 	else if ( false !== strpos($mimeType, "html") || "html" === $ext || "htm" === $ext ) {
diff --git a/bulktest/batch_process.php b/bulktest/batch_process.php
index 567b2c1f..c1b3a6c2 100755
--- a/bulktest/batch_process.php
+++ b/bulktest/batch_process.php
@@ -72,6 +72,10 @@
 
 		updateCrawl($labelFromRun, $gArchive, $locations[0], array( "finishedDateTime" => time() ));
 
+		// Cleanup the requests table after the dump is complete (it is only used during a crawl to calculate aggregate stats)
+		doSimpleCommand("TRUNCATE TABLE $gRequestsTable;");
+		doSimpleCommand("optimize table $gRequestsTable;");
+
 		cprint(date("G:i") . ": DONE with crawl!");
 		exit(0);
 	}
diff --git a/bulktest/batch_start.php b/bulktest/batch_start.php
index 43fd28c3..dfcbb7c0 100755
--- a/bulktest/batch_start.php
+++ b/bulktest/batch_start.php
@@ -110,10 +110,10 @@
 	loadUrlsFromDB($crawlid, $label, $gNumUrls);
 }
 else if ( $gbMobile ) {
-	loadUrlsFromDB($crawlid, $label, 1500000);
+	loadUrlsFromDB($crawlid, $label, 10000000);
 }
 else if ( $gbDev ) {
-	loadUrlsFromDB($crawlid, $label, 1500000);
+	loadUrlsFromDB($crawlid, $label, 10000000);
 }
 
 $numUrls = doSimpleQuery("select count(*) from $gStatusTable where crawlid=$crawlid;");
diff --git a/bulktest/bootstrap.inc b/bulktest/bootstrap.inc
index f4ad0bd0..f1a435f2 100644
--- a/bulktest/bootstrap.inc
+++ b/bulktest/bootstrap.inc
@@ -28,7 +28,7 @@ $private = false;
 $docComplete = false; // &web10 WPT param
 $gbMobileEmul = ( $gbAndroid || $gbMobile ? 1 : 0 ); // WPT param for whether we should use mobile emulation
 $fvonly = true;
-$runs = 3;
+$runs = 1;
 $mv = 1;  // only save video for Median run
 $gbNoScript = false;
 $wptApiKey = '';
diff --git a/bulktest/cleanup-requests.php b/bulktest/cleanup-requests.php
index 5cb9c5d3..90a5f24d 100644
--- a/bulktest/cleanup-requests.php
+++ b/bulktest/cleanup-requests.php
@@ -17,66 +17,38 @@
 // The purpose is to free up disk space taken up by rows in the 
 // "requests" and "requestsdev" tables. We do NOT need these rows for
 // any part of the UI, and all of the requests are archived in a dump
-// file for each crawl. I'm too nervous to delete the rows automatically
-// as part of the crawl process. Instead, once everything looks okay,
-// I run this script manually.
+// file for each crawl.
 
 require_once("bootstrap.inc");
 require_once("../utils.inc");
 
 $now = time();
 
-$gbActuallyDoit = false;
-if ( array_key_exists(1, $argv) ) {
-	if ( "DOIT" == $argv[1] ) {
-		$gbActuallyDoit = true;
-	}
-	else {
-		cprint("Do 'php cleanup-requests.php DOIT' to actually delete the rows.");
-	}
-}
-
-$gSkipRuns = 1;  // how many runs we want to skip and leave their requests intact
 echo exec("df -h .") . "\n";
 
-cleanupRequests("California:Chrome", "requestsdev");
-cleanupRequests("California:Chrome", "requests");
-cleanupRequests("California2:Chrome.3G", "requestsmobiledev");
-cleanupRequests("California2:Chrome.3G", "requestsmobile");
-
-echo "DONE\n\n";
-
-function cleanupRequests($location, $table) {
-	global $gSkipRuns, $gbActuallyDoit;
+$nUnfinished = doSimpleQuery("select count(*) from crawls where finishedDateTime is null;");
+if ( 0 < $nUnfinished ) {
+	cprint("SORRY! There is an unfinished crawl. Skipping the cleanup while the crawl is running.");
+	exit(1);
+}
 
-	$query = "select * from crawls where location = '$location' and finishedDateTime is not null order by crawlid desc limit " . ($gSkipRuns+1) . ";";
-	$results = doQuery($query);
-	mysqli_data_seek($results, $gSkipRuns);
-	$row = mysqli_fetch_assoc($results);
+cleanupRequests("requestsdev");
+cleanupRequests("requests");
+cleanupRequests("requestsmobiledev");
+cleanupRequests("requestsmobile");
 
-	if ( $gbActuallyDoit ) {
-		$nUnfinished = doSimpleQuery("select count(*) from crawls where location = '$location' and finishedDateTime is null;");
-		if ( 0 < $nUnfinished ) {
-			cprint("SORRY! There is an unfinished crawl for location '$location'. Skipping the cleanup while the crawl is running.");
-			return;
-		}
+echo "DONE\n\n";
 
-		// Actually delete rows and optimize the table.
-		cprint("Delete requests from \"$table\" table starting with crawl \"{$row['label']}\" crawlid={$row['crawlid']} minPageid={$row['minPageid']} maxPageid={$row['maxPageid']} and earlier...");
-		$cmd = "delete from $table where crawlid <= {$row['crawlid']};";
-		cprint("$cmd");
-		doSimpleCommand($cmd);
-		cprint("Optimize table \"$table\"...");
-		doSimpleCommand("optimize table $table;");
-		cprint("Done with table \"$table\".");
-	}
-	else {
-    // How many rows would be deleted?
-    $numRows = doSimpleQuery("select count(*) from $table where crawlid <= {$row['crawlid']};");
-    cprint("$numRows rows to be deleted for $location in $table.");
+function cleanupRequests($table) {
+	global $lastCrawl;
 
-		cprint("WOULD delete requests from \"$table\" table starting with crawl \"{$row['label']}\" crawlid={$row['crawlid']} minPageid={$row['minPageid']} maxPageid={$row['maxPageid']} and earlier...");
-	}
+	// Actually delete rows and optimize the table.
+	$cmd = "TRUNCATE TABLE $table;";
+	cprint("$cmd");
+	doSimpleCommand($cmd);
+	cprint("Optimize table \"$table\"...");
+	doSimpleCommand("optimize table $table;");
+	cprint("Done with table \"$table\".");
 
 	echo exec("df -h .") . "\n";
 }
diff --git a/bulktest/importurls.php b/bulktest/importurls.php
index 282450a4..be92a823 100644
--- a/bulktest/importurls.php
+++ b/bulktest/importurls.php
@@ -50,6 +50,10 @@
 if ( "alexa" === $gFileType ) {
 	doSimpleCommand("update $gUrlsTable set ranktmp=null;");
 }
+// Clear out existing CrUX URLs.
+else if ( "other" === $gFileType ) {
+	doSimpleCommand("truncate table $gUrlsTable;");
+}
 
 
 $handle = @fopen($gUrlsFile, "r");
diff --git a/crawls.inc b/crawls.inc
index 6a217a2e..cbe689c0 100644
--- a/crawls.inc
+++ b/crawls.inc
@@ -271,7 +271,7 @@ function dumpCrawl2($label, $archive=null, $location=null, $bMysql=true, $bCsv=t
 		$dumpfile = dumpfileName2($tablename, "csv") . ".gz";
 		tprint("Creating dump file $dumpfile...");
 		$dumpfileSql = dumpfileName2($tablename, "sql");
-		$tmpdir = "/tmp/$tablename." . time(); // Unique dir for this dump cuz mysqldump writes files that aren't writable by this process, and mysqldump -T can NOT overwrite existing files.
+		$tmpdir = "/var/tmp/$tablename." . time(); // Unique dir for this dump cuz mysqldump writes files that aren't writable by this process, and mysqldump -T can NOT overwrite existing files.
 		exec("mkdir $tmpdir; chmod 777 $tmpdir;");
 		$cmd = "mysqldump --opt --complete-insert --skip-add-drop-table -u $gMysqlUsername -p$gMysqlPassword -h $gMysqlServer -T $tmpdir $gMysqlDb $tablename; " .
 			"gzip -f -c $tmpdir/$tablename.txt > $dumpfile ; cp $tmpdir/$tablename.sql $dumpfileSql";
@@ -306,7 +306,7 @@ function dumpCrawl($label, $archive=null, $location=null) {
 	// pages csv
 	// Unique dir for this dump cuz mysqldump writes files that aren't writable by this process, and mysqldump -T can NOT overwrite existing files.
 	$labelUnderscore = str_replace(" ", "_", $label);
-	$tmpdir = "/tmp/$labelUnderscore." . time();
+	$tmpdir = "/var/tmp/$labelUnderscore." . time();
 	$cmd = "mkdir $tmpdir; chmod 777 $tmpdir;";
 	exec($cmd);
 	$dumpfile = dumpfileName($label, "pages", "csv");
diff --git a/dbapi.inc b/dbapi.inc
index 03ed4b7b..70a94377 100644
--- a/dbapi.inc
+++ b/dbapi.inc
@@ -39,7 +39,7 @@ $gUrlsChangeTableDesktop = $gUrlsChangeTable;
 // Mobile tables
 $gPagesTableMobile = $gPagesTable . "mobile";
 $gRequestsTableMobile = $gRequestsTable . "mobile";
-$gUrlsTableMobile = "urls";
+$gUrlsTableMobile = "urlsmobile";
 $gStatusTableMobile = $gStatusTable . "mobile";
 $gStatsTableMobile = $gStatsTable;  // share the data table - a first step toward a single DB
 
@@ -98,6 +98,7 @@ else if ( $gbMobile ) {
 	$gRequestsTable = $gRequestsTableMobile;
 	$gStatusTable = $gStatusTableMobile;
 	$gStatsTable = $gStatsTableMobile;
+	$gUrlsTable = $gUrlsTableMobile;
 }
 else if ( $gbChrome ) {
 	// Use a chrome version of the database tables if "chrome" is in the path.
diff --git a/settings.inc b/settings.inc
index 455d68e0..03ef3cbf 100644
--- a/settings.inc
+++ b/settings.inc
@@ -36,6 +36,8 @@ $gHAUrl = "http://httparchive.org/";
 $gHAMUrl = "http://mobile.httparchive.org/";
 $gWPTUrl = "//httparchive.webpagetest.org/";
 
+$gMaxQueueLength = 60000;
+
 $gbPrivateInstance = false;
 
 ?>