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<div><h1>21 备份和迁移</h1>
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<h2>方案</h2>
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<h3>离线方案</h3>
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<ul>
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<li>Snapshot</li>
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<li>Reindex</li>
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<li>Logstash</li>
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<li>ElasticSearch-dump</li>
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<li>ElasticSearch-Exporter</li>
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</ul>
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<h3>增量备份方案</h3>
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<ul>
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<li>logstash</li>
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</ul>
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<h2>使用快照进行备份</h2>
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<h3>配置信息</h3>
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<p>注册前要注意配置文件加上: elasticsearch.yml</p>
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<pre><code class="language-bash">path.repo: ["/opt/elasticsearch/backup"]
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</code></pre>
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<h3>创建仓库</h3>
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<blockquote>
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<p>注册一个仓库，存放快照，记住，这里不是生成快照，只是注册一个仓库</p>
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</blockquote>
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<pre><code class="language-bash">curl -XPUT 'http://10.11.60.5:9200/_snapshot/repo_backup_1' -H 'Content-Type: application/json' -d '{
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"type": "fs",
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"settings": {
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"location": "/opt/elasticsearch/backup",
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"max_snapshot_bytes_per_sec": "20mb",
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"max_restore_bytes_per_sec": "20mb",
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"compress": true
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}
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}'
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</code></pre>
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<p>查看仓库信息:</p>
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<pre><code class="language-bash">curl -XGET 'http://10.11.60.5:9200/_snapshot/repo_backup_1?pretty'
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</code></pre>
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<p>返回内容</p>
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<pre><code class="language-bash">[<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="64160b0b102437302b36492137">[email protected]</a> elasticsearch]# curl -XGET 'http://10.11.60.5:9200/_snapshot/repo_backup_1?pretty'
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{
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"repo_backup_1" : {
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"type" : "fs",
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"settings" : {
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"location" : "/opt/elasticsearch/backup",
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"max_restore_bytes_per_sec" : "20mb",
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"compress" : "true",
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"max_snapshot_bytes_per_sec" : "20mb"
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}
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}
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}
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</code></pre>
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<h3>创建快照</h3>
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<pre><code class="language-bash">curl -XPUT 'http://10.11.60.5:9200/_snapshot/repo_backup_1/snapshot_1?wait_for_completion=true&pretty' -H 'Content-Type: application/json' -d '{
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"indices": "bro-2019-09-14,bro-2019-09-15,wmi-2019-09-14,wmi-2019-09-15,syslog-2019-09-14,sylog-2019-09-15",
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"rename_pattern": "bro_(.+)",
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"rename_replacement": "dev_bro_$1",
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"ignore_unavailable": true,
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"include_global_state": true
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}'
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</code></pre>
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<p>执行</p>
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<pre><code class="language-bash">{
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"snapshot" : {
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"snapshot" : "snapshot_1",
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"version_id" : 2040399,
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"version" : "2.4.3",
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"indices" : [ "bro-2019-09-14", "bro-2019-09-15", "wmi-2019-09-15", "syslog-2019-09-14", "wmi-2019-09-14" ],
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"state" : "SUCCESS",
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"start_time" : "2019-09-18T05:58:08.860Z",
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"start_time_in_millis" : 1568786288860,
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"end_time" : "2019-09-18T06:02:18.037Z",
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"end_time_in_millis" : 1568786538037,
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"duration_in_millis" : 249177,
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"failures" : [ ],
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"shards" : {
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"total" : 25,
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"failed" : 0,
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"successful" : 25
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}
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}
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}
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</code></pre>
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<h3>恢复数据</h3>
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<h2>方案使用场景</h2>
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<h2>迁移考虑的问题</h2>
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<ul>
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<li>版本问题，从低版本到高版本数据的迁移</li>
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<li>多租户的适配问题</li>
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</ul>
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<blockquote>
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<p>多个工厂的数据进入不同index, 原有的数据bro-2019-09-15的数据需要进入factorycode-bro-2019-09-15</p>
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</blockquote>
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<ul>
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<li>多次或者分批迁移数据</li>
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<li>数据在迁移时候富化</li>
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<li>FieldMapping 和 数据信息 分离?</li>
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</ul>
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</div>
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</div>
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