op-guide: update tikv rolling udpate policy (#592)

Author: LinuxGit

op-guide/ansible-deployment-rolling-update.md

@@ -65,7 +65,7 @@ wget http://download.pingcap.org/tidb-v2.0.3-linux-amd64-unportable.tar.gz
     $ ansible-playbook rolling_update.yml --tags=tikv
     ```
 
-    When you apply a rolling update to the TiKV instance, Ansible migrates the Region leader to other nodes. The concrete logic is as follows: Call the PD API to add the `evict leader scheduler` -> Inspect the `leader_count` of this TiKV instance every 10 seconds -> Wait the `leader_count` to reduce to below 10, or until the times of inspecting the `leader_count` is more than 12 -> Start closing the rolling update of TiKV after two minutes of timeout -> Delete the `evict leader scheduler` after successful start. The operations are executed serially.
+    When you apply a rolling update to the TiKV instance, Ansible migrates the Region leader to other nodes. The concrete logic is as follows: Call the PD API to add the `evict leader scheduler` -> Inspect the `leader_count` of this TiKV instance every 10 seconds -> Wait the `leader_count` to reduce to below 1, or until the times of inspecting the `leader_count` is more than 18 -> Start closing the rolling update of TiKV after three minutes of timeout -> Delete the `evict leader scheduler` after successful start. The operations are executed serially.
 
     If the rolling update fails in the process, log in to `pd-ctl` to execute `scheduler show` and check whether `evict-leader-scheduler` exists. If it does exist, delete it manually. Replace `{PD_IP}` and `{STORE_ID}` with your PD IP and the `store_id` of the TiKV instance:
 

tispark/tispark-quick-start-guide.md

@@ -6,17 +6,17 @@ category: User Guide
 
 # TiSpark Quick Start Guide
 
-To make it easy to [try TiSpark](tispark-user-guide.md), the TiDB cluster integrates Spark, TiSpark jar package and TiSpark sample data by default, in both the Pre-GA and master versions installed using TiDB-Ansible.
+To make it easy to [try TiSpark](tispark-user-guide.md), the TiDB cluster installed using TiDB-Ansible integrates Spark, TiSpark jar package and TiSpark sample data by default.
 
 ## Deployment information
 
 - Spark is deployed by default in the `spark` folder in the TiDB instance deployment directory.
 - The TiSpark jar package is deployed by default in the `jars` folder in the Spark deployment directory.
 
     ```
-    spark/jars/tispark-0.1.0-beta-SNAPSHOT-jar-with-dependencies.jar
+    spark/jars/tispark-SNAPSHOT-jar-with-dependencies.jar
     ```
-  
+
 - TiSpark sample data and import scripts are deployed by default in the TiDB-Ansible directory.
 
     ```
@@ -108,8 +108,6 @@ MySQL [TPCH_001]> show tables;
 
 ## Use example
 
-Assume that the IP of your PD node is `192.168.0.2`, and the port is `2379`. 
-
 First start the spark-shell in the spark deployment directory:
 
 ```