From: Aaron Schulz <aschulz@wikimedia.org>
Date: Wed, 26 Nov 2014 01:10:46 +0000 (-0800)
Subject: Log backtraces for DB reconnections
X-Git-Tag: 1.31.0-rc.0~13103
X-Git-Url: http://git.cyclocoop.org/%22%20.%20%20%20%24self2%20.%20%20%20%22&var_mode_affiche=boucle?a=commitdiff_plain;h=efde278c82435c9daf969ec1484731a5c8005ef5;p=lhc%2Fweb%2Fwiklou.git

Log backtraces for DB reconnections

Change-Id: Ibe7badde80bf6a44e292b89fe6c085cbda5748e2
---

diff --git a/includes/db/Database.php b/includes/db/Database.php
index 11246172bd..df04b6d98e 100644
--- a/includes/db/Database.php
+++ b/includes/db/Database.php
@@ -1028,7 +1028,12 @@ abstract class DatabaseBase implements IDatabase {
 			$lastErrno = $this->lastErrno();
 			if ( $this->ping() ) {
 				global $wgRequestTime;
+
 				wfDebug( "Reconnected\n" );
+				$server = $this->getServer();
+				$msg = __METHOD__ . ": lost connection to $server; reconnected";
+				wfDebugLog( 'DBPerformance', "$msg:\n" . wfBacktrace( true ) );
+
 				$sqlx = $wgDebugDumpSqlLength ? substr( $commentedSql, 0, $wgDebugDumpSqlLength )
 					: $commentedSql;
 				$sqlx = strtr( $sqlx, "\t\n", '  ' );