1 files changed, 34 insertions, 0 deletions
diff --git a/maintenance/purgeStaleMemcachedText.php b/maintenance/purgeStaleMemcachedText.php
new file mode 100644
index 00000000..c4f5006f
--- /dev/null
+++ b/maintenance/purgeStaleMemcachedText.php
@@ -0,0 +1,34 @@
+<?php
+
+require_once( dirname( __FILE__ ) . '/commandLine.inc' );
+
+function purgeStaleMemcachedText() {
+	global $wgMemc, $wgDBname;
+	$db = wfGetDB( DB_MASTER );
+	$maxTextId = $db->selectField( 'text', 'max(old_id)' );
+	$latestReplicatedTextId = $db->selectField( array( 'recentchanges', 'revision' ), 'rev_text_id', 
+		array( 'rev_id = rc_this_oldid', "rc_timestamp < '20101225183000'"),  'purgeStaleMemcachedText', 
+		array( 'ORDER BY' => 'rc_timestamp DESC' ) );
+	$latestReplicatedTextId -= 100; # A bit of paranoia
+
+	echo "Going to purge text entries from $latestReplicatedTextId to $maxTextId in $wgDBname\n";
+
+	for ( $i = $latestReplicatedTextId; $i < $maxTextId; $i++ ) {
+		$key = wfMemcKey( 'revisiontext', 'textid', $i );
+		
+		while (1) {
+			if (! $wgMemc->delete( $key ) ) {
+				echo "Memcache delete for $key returned false\n";
+			}
+			if ( $wgMemc->get( $key ) ) {
+				echo "There's still content in $key!\n";
+			} else {
+				break;
+			}
+		}
+		
+	}
+}
+
+purgeStaleMemcachedText();
+