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<?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();
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