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

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