update document for getting_started

doc/getting_started.md

@@ -13,7 +13,7 @@ Build the rocksdb
 <pre>
 git clone https://github.com/absolute8511/rocksdb.git
 cd rocksdb
-USE_SSE=1 make static_lib
+make static_lib
 </pre>
 
 Install the dependency:
@@ -44,10 +44,86 @@ If you want package the binary release run the scripts
 ## Deploy
 
 * Deploy the rsync daemon which is needed on all server node to transfer the snapshot data for raft
+
+  Example config for rsync as below, and start rsync as daemon using `sudo rsync --daemon` 
+```
+pid file = /var/run/rsyncd.pid
+port = 873
+log file = /var/log/rsync.log
+list = yes
+hosts allow= *
+max connections = 1024
+log format = %t %a %m %f %b
+syslog facility = local3
+timeout = 300
+
+# module name must be exactly same as the data_rsync_module in zankv
+[zankv]
+## this path must be exactly same as the data_dir in zankv node
+path = /data/zankv/
+read only = yes
+list=yes
+log file = /data/logs/rsyncd/zankv.log
+exclude = /data/zankv/myid myid /zankv/myid
+```
+
 * Deploy etcd cluster which is needed for the meta data for the namespaces
+
+  Please refer the etcd documents.
+
 * Deploy the placedriver which is used for data placement: `placedriver -config=/path/to/config`
+
+  Example config as below:
+```
+## <addr>:<port> to listen on for HTTP clients
+http_address = "0.0.0.0:13801"
+
+## the network interface for broadcast, the ip will be detected automatically.
+broadcast_interface = "eth0"
+
+cluster_id = "test-default"
+## the etcd cluster ip list
+cluster_leadership_addresses = "http://127.0.0.1:2379,http://127.0.0.2:2379"
+
+## the detail of the log, larger number means more details
+log_level = 2
+
+## if empty, use the default flag value in glog
+log_dir = "/data/logs/zankv"
+
+## the time period (in hour) that the balance is allowed.
+balance_interval = ["1", "23"]
+auto_balance_and_migrate = true
+```
+
 * Deploy the zankv for data storage server `zankv -config=/path/to/config`
 
+  Example config for zankv as below:
+```
+{
+    "server_conf": {
+        "broadcast_interface":"eth0",
+        "cluster_id":"test-default",
+        "etcd_cluster_addresses":"http://127.0.0.1:2379,http://127.0.0.2:2379",
+        "data_dir":"/data/zankv",
+        "data_rsync_module":"zankv",
+        "redis_api_port": 13381,
+        "http_api_port": 13380,
+        "grpc_api_port": 13382,
+        "election_tick": 30,
+        "tick_ms": 200,
+        "local_raft_addr": "http://0.0.0.0:13379",
+        "rocksdb_opts": {
+            "block_cache":0,
+            "use_shared_cache":true,
+            "use_shared_rate_limiter":true,
+            "rate_bytes_per_sec":50000000,
+            "cache_index_and_filter_blocks": false
+        }
+    }
+}
+```
+
 ## API
 
 placedriver has several HTTP APIs to manager the namespace