Updated changelog

Changelog

@@ -13,6 +13,7 @@ v2.2.20
  * Feature   1638293: --data-dir parameter in order to create the table on a different partition
  * Feature   1639052: with pt-table-checksum automatically exclude checking schemas named percona, percona_schema	 
  * Feature   1642364: pt-online-schema-change Added --remove-data-dir feature
+ * Feature   1643914: Fixed several typos in the doc (Thanks Dario Minnucci)
 
 v2.2.19 released 2016-08-15
 

bin/pt-mysql-summary

@@ -2144,6 +2144,41 @@ parse_wsrep_provider_options () {
    ' "$looking_for"
 }
 
+report_jemalloc_enabled() {
+
+  local JEMALLOC_STATUS=''
+  local GENERAL_JEMALLOC_STATUS=0
+  local JEMALLOC_LOCATION=''
+
+  for PID in $(pidof mysqld); do
+     grep -qc jemalloc /proc/${PID}/environ || ldd $(which mysqld) | grep -qc jemalloc
+     JEMALLOC_STATUS=$?
+     if [ $JEMALLOC_STATUS = 1 ]; then
+       echo "jemalloc is not enabled in MySQL config for process with ID ${PID}" 
+     else
+       echo "jemalloc enabled in MySQL config for process with ID ${PID}"
+       GENERAL_JEMALLOC_STATUS=1
+     fi
+  done
+
+  if [ $GENERAL_JEMALLOC_STATUS = 1 ]; then
+     # Check location for libjemalloc.so.1
+     #for libjemall in "${SCRIPT_PWD}/lib/mysql" "/usr/lib64" "/usr/lib/x86_64-linux-gnu" "/usr/lib"; do
+     for libjemall in "/usr/lib64" "/usr/lib/x86_64-linux-gnu" "/usr/lib"; do
+       if [ -r "$libjemall/libjemalloc.so.1" ]; then
+         JEMALLOC_LOCATION="$libjemall/libjemalloc.so.1"
+         break
+       fi
+     done
+     if [ -z $JEMALLOC_LOCATION ]; then
+       echo "Jemalloc library not found"
+     else
+       echo "Using jemalloc from $JEMALLOC_LOCATION"
+     fi
+  fi
+ 
+}
+
 report_mysql_summary () {
    local dir="$1"
 
@@ -2379,6 +2414,8 @@ report_mysql_summary () {
       name_val "Config File" "Cannot autodetect or find, giving up"
    fi
 
+   section "Memory management library"
+   report_jemalloc_enabled
    section "The End"
 }
 

bin/pt-summary

@@ -2248,9 +2248,26 @@ report_system_summary () { local PTFUNCNAME=report_system_summary;
                                        "$data_dir/vmstat"        \
                                        "$platform"
 
+   section "Memory mamagement"
+   report_transparent_huge_pages
    section "The End"
 }
 
+report_transparent_huge_pages () {
+
+  if [ -f /sys/kernel/mm/transparent_hugepage/enabled ]; then
+    CONTENT_TRANSHP=$(</sys/kernel/mm/transparent_hugepage/enabled)
+    STATUS_THP_SYSTEM=$(echo $CONTENT_TRANSHP | grep -cv '\[never\]')
+  fi
+  if [ $STATUS_THP_SYSTEM = 0 ]; then
+    echo "Transparent huge pages are currently disabled on the system."
+  else
+    echo "Transparent huge pages are enabled."
+  fi
+
+}
+
+
 # ###########################################################################
 # End report_system_info package
 # ###########################################################################