https://github.com/medcl/esm下载源码或编译后软件：

上传软件到/home下修改软件名称为ems
在es集群1上创建test_index_003 并插入数据
使用命令：

#同步索引index_name
esm -s http://10.62.124.x:9200 -d http://10.67.151.y:9200 -x index_name -w=5 -b=10 -c 10000

同步数据和索引配置（主分片个数不同步，使用默认值5）
esm.exe -s http://localhost:9200 -d http://192.168.210.168:9200 -x es_medias_test2 -w=5 -b=10 -c 10000 —copy_settings —copy_mappings

./ems -s http://172.16.4.200:9200 -d http://172.16.4.212:9200 -x test_index_004 -w=5 -b=10 -c 10000 —copy_settings —copy_mappings
#同步数据和索引配置（同步主分片数）
esm.exe -s http://localhost:9200 -d http://192.168.210.168:9200 -x es_medias_test -w=5 -b=10 -c 10000 —shards=1 —copy_settings —copy_mappings

bin/linux64/esm -s http://需要迁移的ES（IP地址）:9200 -d http://迁移到的ES（IP地址）:9200 -xindex索引 -w=5 -b=10 -c 10000 —all

-w 表示线程数
-b 表示一次bulk请求数据大小，单位MB默认 5M
-c 一次scroll请求数量

Usage:
  esm [OPTIONS]
Application Options:
  -s, --source=                    source elasticsearch instance, ie: http://localhost:9200
  -q, --query=                     query against source elasticsearch instance, filter data before migrate, ie: name:medcl
  -d, --dest=                      destination elasticsearch instance, ie: http://localhost:9201
  -m, --source_auth=               basic auth of source elasticsearch instance, ie: user:pass
  -n, --dest_auth=                 basic auth of target elasticsearch instance, ie: user:pass
  -c, --count=                     number of documents at a time: ie "size" in the scroll request (10000)
      --buffer_count=              number of buffered documents in memory (100000)
  -w, --workers=                   concurrency number for bulk workers (1)
  -b, --bulk_size=                 bulk size in MB (5)
  -t, --time=                      scroll time (1m)
      --sliced_scroll_size=        size of sliced scroll, to make it work, the size should be > 1 (1)
  -f, --force                      delete destination index before copying
  -a, --all                        copy indexes starting with . and _
      --copy_settings              copy index settings from source
      --copy_mappings              copy index mappings from source
      --shards=                    set a number of shards on newly created indexes
  -x, --src_indexes=               indexes name to copy,support regex and comma separated list (_all)
  -y, --dest_index=                indexes name to save, allow only one indexname, original indexname will be used if not specified
  -u, --type_override=             override type name
      --green                      wait for both hosts cluster status to be green before dump. otherwise yellow is okay
  -v, --log=                       setting log level,options:trace,debug,info,warn,error (INFO)
  -o, --output_file=               output documents of source index into local file
  -i, --input_file=                indexing from local dump file
      --input_file_type=           the data type of input file, options: dump, json_line, json_array, log_line (dump)
      --source_proxy=              set proxy to source http connections, ie: http://127.0.0.1:8080
      --dest_proxy=                set proxy to target http connections, ie: http://127.0.0.1:8080
      --refresh                    refresh after migration finished
      --fields=                    filter source fields, comma separated, ie: col1,col2,col3,...
      --rename=                    rename source fields, comma separated, ie: _type:type, name:myname
  -l, --logstash_endpoint=         target logstash tcp endpoint, ie: 127.0.0.1:5055
      --secured_logstash_endpoint  target logstash tcp endpoint was secured by TLS
      --repeat_times=              repeat the data from source N times to dest output, use align with parameter regenerate_id to amplify the data size
  -r, --regenerate_id              regenerate id for documents, this will override the exist document id in data source
      --compress                   use gzip to compress traffic
  -p, --sleep=                     sleep N seconds after finished a bulk request (-1)
Help Options:
  -h, --help                       Show this help message