HBASE-24671 Add excludefile and designatedfile options to graceful_st…

…op.sh

Closes #2013

Signed-off-by: Viraj Jasani <vjasani@apache.org>

bin/graceful_stop.sh

@@ -22,7 +22,8 @@
 # Turn off the balancer before running this script.
 function usage {
   echo "Usage: graceful_stop.sh [--config <conf-dir>] [-e] [--restart [--reload]] [--thrift] \
-[--rest]  [-nob |--nobalancer ] <hostname>"
+[--rest] [-n |--noack] [--maxthreads <number of threads>] [--movetimeout <timeout in seconds>] \
+[-nob |--nobalancer] [-d |--designatedfile <file path>] [-x |--excludefile <file path>] <hostname>"
   echo " thrift         If we should stop/start thrift before/after the hbase stop/start"
   echo " rest           If we should stop/start rest before/after the hbase stop/start"
   echo " restart        If we should restart after graceful stop"
@@ -34,8 +35,11 @@ moving regions"
 exit with error. Default value is INT_MAX."
   echo " hostname       Hostname of server we are to stop"
   echo " e|failfast     Set -e so exit immediately if any command exits with non-zero status"
-  echo " nob| nobalancer Do not manage balancer states. This is only used as optimization in \
+  echo " nob|nobalancer Do not manage balancer states. This is only used as optimization in \
 rolling_restart.sh to avoid multiple calls to hbase shell"
+  echo " d|designatedfile xx Designated file with <hostname:port> per line as unload targets"
+  echo " x|excludefile xx Exclude file should have <hostname:port> per line. We do not unload \
+regions to hostnames given in exclude file"
   exit 1
 }
 
@@ -57,6 +61,8 @@ movetimeout=2147483647
 maxthreads=1
 failfast=
 nob=false
+designatedfile=
+excludefile=
 while [ $# -gt 0 ]
 do
   case "$1" in
@@ -69,6 +75,8 @@ do
     --maxthreads) shift; maxthreads=$1; shift;;
     --movetimeout) shift; movetimeout=$1; shift;;
     --nobalancer | -nob) nob=true; shift;;
+    --designatedfile | -d) shift; designatedfile=$1; shift;;
+    --excludefile | -x) shift; excludefile=$1; shift;;
     --) shift; break;;
     -*) usage ;;
     *)  break;;	# terminate while loop
@@ -110,10 +118,20 @@ else
   log "Previous balancer state was $HBASE_BALANCER_STATE"
 fi
 
+unload_args="--filename $filename --maxthreads $maxthreads $noack --operation unload \
+--timeout $movetimeout --regionserverhost $hostname"
+
+if [ "$designatedfile" != "" ]; then
+  unload_args="$unload_args --designatedfile $designatedfile"
+fi
+
+if [ "$excludefile" != "" ]; then
+  unload_args="$unload_args --excludefile $excludefile"
+fi
+
 log "Unloading $hostname region(s)"
 HBASE_NOEXEC=true "$bin"/hbase --config ${HBASE_CONF_DIR} org.apache.hadoop.hbase.util.RegionMover \
---filename $filename --maxthreads $maxthreads $noack --operation "unload" --timeout $movetimeout \
---regionserverhost $hostname
+$unload_args
 log "Unloaded $hostname region(s)"
 
 # Stop the server(s). Have to put hostname into its own little file for hbase-daemons.sh

src/main/asciidoc/_chapters/ops_mgt.adoc

@@ -1385,13 +1385,19 @@ Here is its usage:
 
 ----
 $ ./bin/graceful_stop.sh
-Usage: graceful_stop.sh [--config &conf-dir>] [--restart] [--reload] [--thrift] [--rest] &hostname>
- thrift      If we should stop/start thrift before/after the hbase stop/start
- rest        If we should stop/start rest before/after the hbase stop/start
- restart     If we should restart after graceful stop
- reload      Move offloaded regions back on to the stopped server
- debug       Move offloaded regions back on to the stopped server
- hostname    Hostname of server we are to stop
+Usage: graceful_stop.sh [--config <conf-dir>] [-e] [--restart [--reload]] [--thrift] [--rest] [-n |--noack] [--maxthreads <number of threads>] [--movetimeout <timeout in seconds>] [-nob |--nobalancer] [-d |--designatedfile <file path>] [-x |--excludefile <file path>] <hostname>
+ thrift         If we should stop/start thrift before/after the hbase stop/start
+ rest           If we should stop/start rest before/after the hbase stop/start
+ restart        If we should restart after graceful stop
+ reload         Move offloaded regions back on to the restarted server
+ n|noack        Enable noAck mode in RegionMover. This is a best effort mode for moving regions
+ maxthreads xx  Limit the number of threads used by the region mover. Default value is 1.
+ movetimeout xx Timeout for moving regions. If regions are not moved by the timeout value,exit with error. Default value is INT_MAX.
+ hostname       Hostname of server we are to stop
+ e|failfast     Set -e so exit immediately if any command exits with non-zero status
+ nob|nobalancer Do not manage balancer states. This is only used as optimization in rolling_restart.sh to avoid multiple calls to hbase shell
+ d|designatedfile xx Designated file with <hostname:port> per line as unload targets
+ x|excludefile xx Exclude file should have <hostname:port> per line. We do not unload regions to hostnames given in exclude file
 ----
 
 To decommission a loaded RegionServer, run the following: +$