From c442262f506bd23d2626cbb838e57154947c4c2f Mon Sep 17 00:00:00 2001
From: Frank Cizmich <frank.cizmich@percona.com>
Date: Fri, 5 Sep 2014 14:12:18 -0300
Subject: [PATCH] fixes pt-stalk queries waiting for cache mutex - 1318985

---
 bin/pt-stalk | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/bin/pt-stalk b/bin/pt-stalk
index cc2df893..e9c8028e 100755
--- a/bin/pt-stalk
+++ b/bin/pt-stalk
@@ -1001,7 +1001,7 @@ open_tables() {
 }
 
 lock_waits() {
-   local sql1="SELECT
+   local sql1="SELECT SQL_NO_CACHE
       CONCAT('thread ', b.trx_mysql_thread_id, ' from ', p.host) AS who_blocks,
       IF(p.command = \"Sleep\", p.time, 0) AS idle_in_trx,
       MAX(TIMESTAMPDIFF(SECOND, r.trx_wait_started, CURRENT_TIMESTAMP)) AS max_wait_time,
@@ -1013,7 +1013,7 @@ lock_waits() {
    GROUP BY who_blocks ORDER BY num_waiters DESC\G"
    $CMD_MYSQL $EXT_ARGV -e "$sql1"
 
-   local sql2="SELECT
+   local sql2="SELECT SQL_NO_CACHE
       r.trx_id AS waiting_trx_id,
       r.trx_mysql_thread_id AS waiting_thread,
       TIMESTAMPDIFF(SECOND, r.trx_wait_started, CURRENT_TIMESTAMP) AS wait_time,
@@ -1034,9 +1034,9 @@ lock_waits() {
 } 
 
 transactions() {
-   $CMD_MYSQL $EXT_ARGV -e "SELECT * FROM INFORMATION_SCHEMA.INNODB_TRX\G"
-   $CMD_MYSQL $EXT_ARGV -e "SELECT * FROM INFORMATION_SCHEMA.INNODB_LOCKS\G"
-   $CMD_MYSQL $EXT_ARGV -e "SELECT * FROM INFORMATION_SCHEMA.INNODB_LOCK_WAITS\G"
+   $CMD_MYSQL $EXT_ARGV -e "SELECT SQL_NO_CACHE * FROM INFORMATION_SCHEMA.INNODB_TRX\G"
+   $CMD_MYSQL $EXT_ARGV -e "SELECT SQL_NO_CACHE * FROM INFORMATION_SCHEMA.INNODB_LOCKS\G"
+   $CMD_MYSQL $EXT_ARGV -e "SELECT SQL_NO_CACHE * FROM INFORMATION_SCHEMA.INNODB_LOCK_WAITS\G"
 }
 
 innodb_status() {