Merge branch '3.0' into PT-214

CONTRIBUTE.md

@@ -83,6 +83,11 @@ cd ${HOME}/perldev/percona-toolkit
 sandbox/test-env start
 ```
 To stop the MySQL sandbox: `sandbox/test-env stop`  
+To enable TokuDB (only available in Percona Server 5.7+), run:  
+
+```
+ENABLE_TOKUDB=1 sandbox/test-env start
+```
 
 ### Running tests
 ```

sandbox/start-sandbox

@@ -176,8 +176,11 @@ make_sandbox() {
 
     if [ -x "$PERCONA_TOOLKIT_SANDBOX/bin/ps-admin" ]; then
         # try to enable RocksDB. Only available on Percona Server 5.7.19+
-       if [ "$version" ">" "5.6" ]; then
+        if [ "$version" > "5.6" ]; then
             $PERCONA_TOOLKIT_SANDBOX/bin/ps-admin --enable-rocksdb -u root -pmsandbox -h 127.1 -P $port
+            if [ -n "$ENABLE_TOKUDB" ]; then 
+                sudo $PERCONA_TOOLKIT_SANDBOX/bin/ps-admin --enable-tokudb -u root -pmsandbox -h 127.1 -P $port
+            fi
         fi
     fi
 
@@ -194,6 +197,8 @@ fi
 type=$1         # master, slave or master-master
 port=$2         # sandbox port number, e.g. 12345
 master_port=$3  # master port if slave or master-master
+enable_tokudb=''
+
 
 if [ "$type" != "master" ] && [ "$type" != "slave" ] && [ "$type" != "master-master" ] && [ "$type" != "cluster" ] && [ "$type" != "channels" ]; then
     die "Invalid sandbox type: $type.  Valid types are master, slave, and master-master."

sandbox/test-env

@@ -267,6 +267,10 @@ opt=$1
 
 exit_status=0
 
+if [ -e ${PERCONA_TOOLKIT_SANDBOX}/lib/mysql/libjemalloc.so ]; then
+    export LD_PRELOAD=${PERCONA_TOOLKIT_SANDBOX}/lib/mysql/libjemalloc.so
+fi
+
 if [ $opt = 'checkconfig' ]; then
    checkconfig 1
    echo -n "Percona Toolkit test environment config is "