elasticsearch的集群配置更新和索引配置更新

curl -XPUT localhost:9200/_cluster/settings -d '{"persistent" : {"discovery.zen.minimum_master_nodes" : 2}}'

<pre name="code" class="javascript">curl -XPUT localhost:9200/_cluster/settings -d '{"transient" : {"discovery.zen.minimum_master_nodes" : 2}}'

{"persistent" : {},"transient" : {"discovery.zen.minimum_master_nodes" : "2"}}'

获取配置信息：

<span class="pln" style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font-family: Consolas, Menlo, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Lucida Console'; font-size: 16px; line-height: 24.296875px; vertical-align: baseline; white-space: pre;">curl </span><span class="pun" style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font-family: Consolas, Menlo, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Lucida Console'; font-size: 16px; line-height: 24.296875px; vertical-align: baseline; color: rgb(102, 102, 0); white-space: pre;">-</span><span class="pln" style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font-family: Consolas, Menlo, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Lucida Console'; font-size: 16px; line-height: 24.296875px; vertical-align: baseline; white-space: pre;">XGET localhost</span><span class="pun" style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font-family: Consolas, Menlo, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Lucida Console'; font-size: 16px; line-height: 24.296875px; vertical-align: baseline; color: rgb(102, 102, 0); white-space: pre;">:</span><span class="lit" style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font-family: Consolas, Menlo, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Lucida Console'; font-size: 16px; line-height: 24.296875px; vertical-align: baseline; color: rgb(0, 102, 102); white-space: pre;">9200</span><span class="pun" style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font-family: Consolas, Menlo, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Lucida Console'; font-size: 16px; line-height: 24.296875px; vertical-align: baseline; color: rgb(102, 102, 0); white-space: pre;">/</span><span class="pln" style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font-family: Consolas, Menlo, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Lucida Console'; font-size: 16px; line-height: 24.296875px; vertical-align: baseline; white-space: pre;">_cluster</span><span class="pun" style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font-family: Consolas, Menlo, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Lucida Console'; font-size: 16px; line-height: 24.296875px; vertical-align: baseline; color: rgb(102, 102, 0); white-space: pre;">/</span><span class="pln" style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font-family: Consolas, Menlo, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Lucida Console'; font-size: 16px; line-height: 24.296875px; vertical-align: baseline; white-space: pre;">settings</span>

<span class="pln" style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font-family: Consolas, Menlo, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Lucida Console'; font-size: 16px; line-height: 24.296875px; vertical-align: baseline; white-space: pre;">其他的一些集群参数从这个网址可以看到：</span>

<span class="pln" style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font-family: Consolas, Menlo, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Lucida Console'; font-size: 16px; line-height: 24.296875px; vertical-align: baseline; white-space: pre;"><a target=_blank href="https://www.elastic.co/guide/en/elasticsearch/reference/current/cluster-update-settings.html#_threadpools">https://www.elastic.co/guide/en/elasticsearch/reference/current/cluster-update-settings.html#_threadpools</a></span>

update indices setting:

</pre><pre name="code" class="javascript">curl -XPUT 'localhost:9200/my_index/_settings' -d '{"index" : {"number_of_replicas" : 4}}'