如何将Elasticsearch数据从一台服务器移动到另一台服务器?
我在一个有多个索引的本地节点上有服务器正在运行的Elasticsearch 1.1.1 。 我想将该数据复制到服务器 B运行Elasticsearch 1.3.4
到目前为止的程序
当我使用ES头插件查看群集时,不会显示任何索引。
似乎没有加载数据。我错过了什么吗?
答案 0 :(得分:95)
选择的答案听起来比它稍微复杂一点,以下是您所需要的(在您的系统上首先安装npm)。
npm install -g elasticdump
elasticdump --input=http://mysrc.com:9200/my_index --output=http://mydest.com:9200/my_index --type=mapping
elasticdump --input=http://mysrc.com:9200/my_index --output=http://mydest.com:9200/my_index --type=data
如果映射保持不变,则可以跳过第一个elasticdump命令用于后续副本。
我刚刚完成了从AWS到Qbox.io的迁移,没有任何问题。
详情请见:
https://www.npmjs.com/package/elasticdump
包含完整性的帮助页面(截至2016年2月):
elasticdump: Import and export tools for elasticsearch
Usage: elasticdump --input SOURCE --output DESTINATION [OPTIONS]
--input
Source location (required)
--input-index
Source index and type
(default: all, example: index/type)
--output
Destination location (required)
--output-index
Destination index and type
(default: all, example: index/type)
--limit
How many objects to move in bulk per operation
limit is approximate for file streams
(default: 100)
--debug
Display the elasticsearch commands being used
(default: false)
--type
What are we exporting?
(default: data, options: [data, mapping])
--delete
Delete documents one-by-one from the input as they are
moved. Will not delete the source index
(default: false)
--searchBody
Preform a partial extract based on search results
(when ES is the input,
(default: '{"query": { "match_all": {} } }'))
--sourceOnly
Output only the json contained within the document _source
Normal: {"_index":"","_type":"","_id":"", "_source":{SOURCE}}
sourceOnly: {SOURCE}
(default: false)
--all
Load/store documents from ALL indexes
(default: false)
--bulk
Leverage elasticsearch Bulk API when writing documents
(default: false)
--ignore-errors
Will continue the read/write loop on write error
(default: false)
--scrollTime
Time the nodes will hold the requested search in order.
(default: 10m)
--maxSockets
How many simultaneous HTTP requests can we process make?
(default:
5 [node <= v0.10.x] /
Infinity [node >= v0.11.x] )
--bulk-mode
The mode can be index, delete or update.
'index': Add or replace documents on the destination index.
'delete': Delete documents on destination index.
'update': Use 'doc_as_upsert' option with bulk update API to do partial update.
(default: index)
--bulk-use-output-index-name
Force use of destination index name (the actual output URL)
as destination while bulk writing to ES. Allows
leveraging Bulk API copying data inside the same
elasticsearch instance.
(default: false)
--timeout
Integer containing the number of milliseconds to wait for
a request to respond before aborting the request. Passed
directly to the request library. If used in bulk writing,
it will result in the entire batch not being written.
Mostly used when you don't care too much if you lose some
data when importing but rather have speed.
--skip
Integer containing the number of rows you wish to skip
ahead from the input transport. When importing a large
index, things can go wrong, be it connectivity, crashes,
someone forgetting to `screen`, etc. This allows you
to start the dump again from the last known line written
(as logged by the `offset` in the output). Please be
advised that since no sorting is specified when the
dump is initially created, there's no real way to
guarantee that the skipped rows have already been
written/parsed. This is more of an option for when
you want to get most data as possible in the index
without concern for losing some rows in the process,
similar to the `timeout` option.
--inputTransport
Provide a custom js file to us as the input transport
--outputTransport
Provide a custom js file to us as the output transport
--toLog
When using a custom outputTransport, should log lines
be appended to the output stream?
(default: true, except for `$`)
--help
This page
Examples:
# Copy an index from production to staging with mappings:
elasticdump \
--input=http://production.es.com:9200/my_index \
--output=http://staging.es.com:9200/my_index \
--type=mapping
elasticdump \
--input=http://production.es.com:9200/my_index \
--output=http://staging.es.com:9200/my_index \
--type=data
# Backup index data to a file:
elasticdump \
--input=http://production.es.com:9200/my_index \
--output=/data/my_index_mapping.json \
--type=mapping
elasticdump \
--input=http://production.es.com:9200/my_index \
--output=/data/my_index.json \
--type=data
# Backup and index to a gzip using stdout:
elasticdump \
--input=http://production.es.com:9200/my_index \
--output=$ \
| gzip > /data/my_index.json.gz
# Backup ALL indices, then use Bulk API to populate another ES cluster:
elasticdump \
--all=true \
--input=http://production-a.es.com:9200/ \
--output=/data/production.json
elasticdump \
--bulk=true \
--input=/data/production.json \
--output=http://production-b.es.com:9200/
# Backup the results of a query to a file
elasticdump \
--input=http://production.es.com:9200/my_index \
--output=query.json \
--searchBody '{"query":{"term":{"username": "admin"}}}'
------------------------------------------------------------------------------
Learn more @ https://github.com/taskrabbit/elasticsearch-dump`enter code here`
答案 1 :(得分:39)
1)yum install epel-release
2)yum install nodejs
3)yum install npm
4)npm install elasticdump
5)cd node_modules / elasticdump / bin
6)
./elasticdump \
--input=http://192.168.1.1:9200/original \
--output=http://192.168.1.2:9200/newCopy \
--type=data
答案 2 :(得分:21)
您可以使用Elasticsearch中提供的snapshot/restore功能。一旦设置了基于文件系统的快照存储,就可以在群集之间移动它并在不同的群集上进行恢复
答案 3 :(得分:6)
我尝试使用ubuntu将数据从ELK 2.4.3移动到ELK 5.1.1
以下是步骤
$ sudo apt-get update
$ sudo apt-get install -y python-software-properties python g++ make
$ sudo add-apt-repository ppa:chris-lea/node.js
$ sudo apt-get update
$ sudo apt-get install npm
$ sudo apt-get install nodejs
$ npm install colors
$ npm install nomnom
$ npm install elasticdump
在主目录goto中
$ cd node_modules/elasticdump/
执行命令
如果您需要基本的http auth,可以像这样使用它:
--input=http://name:password@localhost:9200/my_index
从生产中复制索引:
$ ./bin/elasticdump --input="http://Source:9200/Sourceindex" --output="http://username:password@Destination:9200/Destination_index" --type=data
答案 4 :(得分:3)
如果您可以将第二台服务器添加到群集,您可以这样做:
仅当替换次数等于节点数时才会起作用。
答案 5 :(得分:1)
我一直很成功,只需将索引目录/文件夹复制到新服务器并重新启动它即可。您将通过执行GET /_cat/indices
找到索引ID,并且与此ID匹配的文件夹位于data\nodes\0\indices
中(除非将其移动,否则通常在您的elasticsearch文件夹中)。
答案 6 :(得分:1)
我们可以使用elasticdump
或multielasticdump
进行备份并还原,我们可以将数据从一个服务器/群集移动到另一服务器/群集。
请找到我提供的详细答案 here。
答案 7 :(得分:0)
如果有人遇到同样的问题,那么当您尝试从elasticsearch&lt; 2.0转储到&gt; 2.0时,您需要执行以下操作:
beanshell
答案 8 :(得分:0)
如果仅需要将数据从一台Elasticsearch服务器传输到另一台,则也可以使用elasticsearch-document-transfer。
步骤:
$ npm install elasticsearch-document-transfer.
config.js
config.js
中添加两个Elasticsearch服务器的连接详细信息options.js
$ node index.js
答案 9 :(得分:0)
还有_reindex
选项
摘自文档:
通过5.x及更高版本中提供的Elasticsearch重新索引API,您可以将新的Elasticsearch Service部署远程连接到旧的Elasticsearch集群。这将从旧群集中提取数据,并将其索引到新群集中。重新索引本质上是从头开始重建索引,运行起来可能会占用更多资源。
POST _reindex
{
"source": {
"remote": {
"host": "https://REMOTE_ELASTICSEARCH_ENDPOINT:PORT",
"username": "USER",
"password": "PASSWORD"
},
"index": "INDEX_NAME",
"query": {
"match_all": {}
}
},
"dest": {
"index": "INDEX_NAME"
}
}
答案 10 :(得分:0)
您可以快照化群集的完整状态(包括所有数据索引),并在新的群集或服务器中还原它们(使用还原API)。
答案 11 :(得分:-1)
如果您不想像控制台工具那样使用elasticdump。您可以使用下一个node.js script