zookeeper数据迁移方法

有一个好用的开源zkcopy，直接搞定。
git clone https://github.com/kshchepanovskyi/zkcopy.git

介绍：

zkcopy

Tool for fast copying ZooKeeper data between different clusters.
Optimized for copying big volumes of data over WAN.

Build

Requires apache maven 3.

mvn clean install

Usage

java -Dsource="server:port/path" \
     -Ddestination="server:port/path" \
     -Dthreads=10 \
     -DremoveDeprecatedNodes=true \
     -jar target/zkcopy-*-jar-with-dependencies.jar

If using docker then:

docker pull kshchepanovskyi/zkcopy
docker run --rm -it kshchepanovskyi/zkcopy \
    -Dsource="server:port/path" \
    -Ddestination="server:port/path" \
    -Dthreads=10 \
    -DremoveDeprecatedNodes=true

• source - set source cluster address and root node to be copied
• destination - set target cluster address and root node location where to
  copy data
• threads - specify number of parallel workers. If latency is
  high, then increasing this number might significantly improve performance
• removeDeprecatedNodes - set it to true to remove nodes that are
  present on destination but missing on source