Now the local examples use 'zk2' topology.

Instead of the soon-to-be-deprecated 'zookeeper' one.

doc/GettingStarted.md

@@ -102,7 +102,7 @@ sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
     possible to use another lock server, but plugins currently exist only
     for ZooKeeper and etcd.
     - ZooKeeper 3.3.5 is included by default. 
-    - [Install etcd v2.0+](https://github.com/coreos/etcd/releases).
+    - [Install etcd v3.0+](https://github.com/coreos/etcd/releases).
       If you use etcd, remember to include the `etcd` command
       on your path.
 
@@ -399,9 +399,10 @@ lock service. ZooKeeper is included in the Vitess distribution.
     Vitess process how to connect to ZooKeeper. Then, each process can
     find all of the other Vitess processes by coordinating via ZooKeeper.
 
-    Each of our scripts automatically sets the `ZK_CLIENT_CONFIG` environment
-    variable to point to the `zk-client-conf.json` file, which contains the
-    ZooKeeper server addresses for each cell.
+    Each of our scripts automatically uses the `TOPOLOGY_FLAGS` environment
+    variable to point to the global ZooKeeper instance. The global instance in
+    turn is configured to point to the local instance. In our sample scripts,
+    they are both hosted in the same ZooKeeper service.
 
 1.  **Start vtctld**
 

examples/local/env.sh

@@ -1,4 +1,5 @@
 hostname=`hostname -f`
+vtctld_web_port=15000
 
 # Each ZooKeeper server needs a list of all servers in the quorum.
 # Since we're running them all locally, we need to give them unique ports.
@@ -27,9 +28,9 @@ if [ -z "$VT_MYSQL_ROOT" ]; then
   export VT_MYSQL_ROOT=$(dirname `dirname $mysql_path`)
 fi
 
-# We expect to find zk-client-conf.json in the same folder as this script.
-env_script_root=`dirname "${BASH_SOURCE}"`
-export ZK_CLIENT_CONFIG=$env_script_root/zk-client-conf.json
+# Set topology environment parameters.
+ZK_SERVER="localhost:21811,localhost:21812,localhost:21813"
+TOPOLOGY_FLAGS="-topo_implementation zk2 -topo_global_server_address $ZK_SERVER -topo_global_root /vitess/global"
 
 mkdir -p $VTDATAROOT/tmp
 

examples/local/sharded-vtworker.sh

@@ -9,6 +9,7 @@ source $script_root/env.sh
 
 echo "Starting vtworker..."
 exec $VTROOT/bin/vtworker \
+  $TOPOLOGY_FLAGS \
   -cell test \
   -log_dir $VTDATAROOT/tmp \
   -alsologtostderr \

examples/local/vtctld-up.sh

@@ -5,7 +5,6 @@
 set -e
 
 cell='test'
-web_port=15000
 grpc_port=15999
 
 script_root=`dirname "${BASH_SOURCE}"`
@@ -13,6 +12,7 @@ source $script_root/env.sh
 
 echo "Starting vtctld..."
 $VTROOT/bin/vtctld \
+  $TOPOLOGY_FLAGS \
   -cell $cell \
   -web_dir $VTTOP/web/vtctld \
   -web_dir2 $VTTOP/web/vtctld2/app \
@@ -22,12 +22,11 @@ $VTROOT/bin/vtctld \
   -backup_storage_implementation file \
   -file_backup_storage_root $VTDATAROOT/backups \
   -log_dir $VTDATAROOT/tmp \
-  -port $web_port \
+  -port $vtctld_web_port \
   -grpc_port $grpc_port \
   -pid_file $VTDATAROOT/tmp/vtctld.pid \
   > $VTDATAROOT/tmp/vtctld.out 2>&1 &
 disown -a
 
-echo "Access vtctld web UI at http://$hostname:$web_port"
+echo "Access vtctld web UI at http://$hostname:$vtctld_web_port"
 echo "Send commands with: vtctlclient -server $hostname:$grpc_port ..."
-

examples/local/vtgate-up.sh

@@ -13,6 +13,7 @@ source $script_root/env.sh
 
 # Start vtgate.
 $VTROOT/bin/vtgate \
+  $TOPOLOGY_FLAGS \
   -log_dir $VTDATAROOT/tmp \
   -port $web_port \
   -grpc_port $grpc_port \

examples/local/vttablet-up.sh

@@ -98,6 +98,7 @@ for uid_index in $uids; do
 
   echo "Starting vttablet for $alias..."
   $VTROOT/bin/vttablet \
+    $TOPOLOGY_FLAGS \
     -log_dir $VTDATAROOT/tmp \
     -tablet-path $alias \
     -tablet_hostname "$tablet_hostname" \
@@ -114,6 +115,7 @@ for uid_index in $uids; do
     -grpc_port $grpc_port \
     -service_map 'grpc-queryservice,grpc-tabletmanager,grpc-updatestream' \
     -pid_file $VTDATAROOT/$tablet_dir/vttablet.pid \
+    -vtctld_addr http://$hostname:$vtctld_web_port/ \
     $dbconfig_flags \
     > $VTDATAROOT/$tablet_dir/vttablet.out 2>&1 &
 

examples/local/zk-client-conf.json

@@ -1,4 +0,0 @@
-{
-  "test": "localhost:21811,localhost:21812,localhost:21813",
-  "global": "localhost:21811,localhost:21812,localhost:21813"
-}

examples/local/zk-up.sh

@@ -35,3 +35,16 @@ for zkid in $zkids; do
 done
 
 echo "Started zk servers."
+
+# Now create the toplevel directories we'll need, if not there.
+$VTROOT/bin/zk -server $ZK_SERVER touch -p /vitess/global
+$VTROOT/bin/zk -server $ZK_SERVER touch -p /vitess/test
+
+# And also add the CellInfo description for the 'test' cell.
+# If the node already exists, it's fine, means we used existing data.
+$VTROOT/bin/vtctl $TOPOLOGY_FLAGS AddCellInfo \
+  -root /vitess/test \
+  -server_address $ZK_SERVER \
+  test || /bin/true
+
+echo "Configured zk servers."