curl 命令获取 solr 集合的分片信息

Question

如果有 curl 命令可以为我们提供 solr 中给定集合的分片信息，请告诉我。也就是说，有关给定集合被分成多少个分片及其复制因子的信息。我理解可以通过solr admin UI看到。但是，我们正在寻找会产生相同结果的 curl 命令。

Answer 1

Admin UI 是一个 Javascript 应用程序。如果您在“网络”选项卡下查看浏览器的开发工具，您会确切地看到 UI 正在发出哪些请求来显示所需的信息。然后，您可以在 curl 中使用相同的端点来检索相同的信息并根据您的意愿进行处理。

The CLUSTERSTATUS endpoint will give you the information you're looking for:

http://localhost:8983/solr/admin/collections?action=CLUSTERSTATUS

{
  "responseHeader":{
    "status":0,
    "QTime":333},
  "cluster":{
    "collections":{
      "collection1":{
        "shards":{
          "shard1":{
            "range":"80000000-ffffffff",
            "state":"active",
            "health": "GREEN",
            "replicas":{
              "core_node1":{
                "state":"active",
                "core":"collection1",
                "node_name":"127.0.1.1:8983_solr",
                "base_url":"http://127.0.1.1:8983/solr",
                "leader":"true"},
              "core_node3":{
                "state":"active",
                "core":"collection1",
                "node_name":"127.0.1.1:8900_solr",
                "base_url":"http://127.0.1.1:8900/solr"}}},
          "shard2":{
            "range":"0-7fffffff",
            "state":"active",
            "health": "GREEN",
            "replicas":{
              "core_node2":{
                "state":"active",
                "core":"collection1",
                "node_name":"127.0.1.1:7574_solr",
                "base_url":"http://127.0.1.1:7574/solr",
                "leader":"true"},
              "core_node4":{
                "state":"active",
                "core":"collection1",
                "node_name":"127.0.1.1:7500_solr",
                "base_url":"http://127.0.1.1:7500/solr"}}}},
        "maxShardsPerNode":"1",
        "router":{"name":"compositeId"},
        "replicationFactor":"1",
        "znodeVersion": 11,
        "autoCreated":"true",
        "configName" : "my_config",
        "health": "GREEN",
        "aliases":["both_collections"]
      },
      "collection2":{
        "..."
      }
    },
    "aliases":{ "both_collections":"collection1,collection2" },
    "roles":{
      "overseer":[
        "127.0.1.1:8983_solr",
        "127.0.1.1:7574_solr"]
    },
    "live_nodes":[
      "127.0.1.1:7574_solr",
      "127.0.1.1:7500_solr",
      "127.0.1.1:8983_solr",
      "127.0.1.1:8900_solr"]
  }
}

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