$listSearchIndexes
返回指定集合现有Atlas Search
索引的信息。
**重要:**该命令只能在托管的MongoDB Allas,并且要求群集层级至少为M10。
语法
db.collection>.aggregate(
[
{
$listSearchIndexes:
{
id: indexId>,
name: indexName>
}
}
]
)
参数说明:
-
id
,字符串,可选参数,要查询索引的id -
name
,字符串,可选参数,要查询索引的名称
不能同时指定id
和name
,必须要有listSearchIndexes
的权限:
访问控制
{
resource: {
db : database>,
collection: collection>
},
actions: [ "listSearchIndexes" ]
}
内置读角色提供listSearchIndexes
权限。下面的示例授予了qa
数据库的read
角色:
db.grantRolesToUser(
"",
[ { role: "read", db: "qa" } ]
)
输出字段
$listSearchIndexes
返回一个文档数组,数组中的每个文件都包含以下字段:
字段 | 类型 | 描述 |
---|---|---|
id |
字符串 | 索引的唯一标识 |
name |
字符串 | 索引名称 |
status |
字符串 | 索引状态 |
queryable |
布尔 | 索引是否已经准备好被查询 |
latestDefinitionVersion |
文档 | 索引版本 |
latestDefinitionVersion.version |
整数 | 索引定义的版本,当更新索引定义时,版本号会自动增加 |
latestDefinitionVersion.createdAt |
日期 | 索引定义创建的时间 |
latestDefinition |
文档 | 最新的索引定义 |
statusDetail |
文档数组 | 包含了每个搜索主机(mongot )上的索引状态 |
statusDetail.[n].hostname |
字符串 | 相应的mongot 的主机名 |
statusDetail.[n].status |
字符串 | 相应的mongot 的索引状态 |
statusDetail.[n].queryable |
布尔 | 相应的mongot 的索引是否可被查询 |
statusDetail.[n].mainIndex |
文档 | 相应的mongot 的活动索引的状态 |
statusDetail.[n].stagedIndex |
文档 | 包含了相应mongot 上,在后台构建的索引的状态信息。该字段只会出现在构建一个索引去更新已存在索引的时候 |
synonymMappingStatus |
字符串 | 索引的同义词映射状态,该字段只会出现在索引有同义词定义时。可以是BUILDING 、FAILED 、READY 这个三个值之一。返回的状态是每个独立mongot 上同义词映射的概括 |
synonymMappingStatusDetail |
文档数组 | 该字段(和其子字段)只有当索引有同义词定义时才会出现。包含了每个搜索主机(mongot )的索引的同义词映射状态 |
synonymMappingStatusDetail.[n].status |
字符串 | 所有mongot 进程中相应同义词映射的状态 |
synonymMappingStatusDetail.[n].queryable |
布尔 | 表示相应的同义词映射是否支持跨所有mongot 进程的查询 |
message |
字符串 | 描述同义词映射的错误(如果适用)。只有当该同义词映射的状态为FAILED 时才会出现 |
索引状态详情
下表描述了statusDetail.[mongot].mainIndex
和statusDetail.[mongot].stagedIndex
文档的内嵌字段:
这些字段描述了特定mongot
的索引状态。
|字段|类型|描述|
|-|-|
|status
|字符串|相应mongot
上索引的生成状态|
|queryable
|布尔|相应mongot
上索引是否可被查询|
|synonymMappingStatus
|字符串|索引生成的同义词映射在相应mongot
上的状态。只有当索引定义了同义词时才会出现|
|synonymMappingStatusDetails
|文档|包含索引的同义词映射在相应mongot
上的状态。该字段(及其子字段)只有在索引定义了同义词时才会出现|
|definitionVersion
|文档|描述生成索引时使用的索引定义版本。
|definitionVersion.version
|整数|索引生成在相应mongot
上使用的版本号。更新索引定义时,更新后的索引的版本号将递增|
|definitionVersion.createdAt
|日期|创建索引定义的时间|
|definition
|文档|建立该索引时使用的定义|
同义词映射详细信息
下表描述了以下对象的嵌入字段:
statusDetail.mainIndex.synonymMappingStatusDetails.
statusDetail.stagedIndex.synonymMappingStatusDetails
|字段|类型|描述|
|-|-|
|status
|字符串|跨mongot
进程的同义词映射的状态。|
|queryable
|布尔|指示同义词映射是否可以支持对相应mongot
进程的查询。|
|message
|字符串|描述同义词映射的错误(如果适用)。只有当该同义词映射的状态为FAILED
时才会出现|
Atlas Search索引状态
$listSearchIndexes
的status
字段可以是下面的值:
状态 | 描述 |
---|---|
BUILDING |
当编辑后,Atlas构建或重建索引时或当Atlas Search无法跟上采集索引的变化时(会在后台重建索引),状态为BUILDING ;当索引处于BUILDDING 时,对于新建索引,Atlas Search不能使用索引查询直到索引构建完成;对于新建索引,Atlas Search会先试用旧索引定义,直到新索引建好后 |
FAILED |
索引构建失败,索引可能因索引定义无效而进入FAILED 状态 |
PENDING |
Atlas 尚未开始构建索引 |
READY |
索引就绪可以用于查询 |
STALE |
索引可查询,但已停止从索引集合复制数据。对该索引的搜索可能会返回过期数据。由于复制错误,索引可能会进入STALE 状态 |
错误
7.0.3 版中的更改:此命令在非Atlas上执行时会出错:
db.names.aggregate( [
{ $listSearchIndexes: { } }
] )
MongoServerError: PlanExecutor error during aggregation :: caused by :: Search index commands are only supported with Atlas.
在以前的版本中,如果在非Atlas上执行该命令,则返回空结果。
举例
返回所有查询索引
下面的示例将返回电影收藏中的所有Atlas Search
索引:
db.movies.aggregate(
[
{
$listSearchIndexes: { }
}
]
)
输出:
[
{
id: '6524096020da840844a4c4a7',
name: 'default',
status: 'BUILDING',
queryable: true,
latestDefinitionVersion: {
version: 2,
createdAt: ISODate("2023-10-09T14:51:57.355Z")
},
latestDefinition: {
mappings: { dynamic: true },
storedSource: { include: [ 'awards.text' ] }
},
statusDetail: [
{
hostname: 'atlas-n1cm1j-shard-00-02',
status: 'BUILDING',
queryable: true,
mainIndex: {
status: 'READY',
queryable: true,
definitionVersion: {
version: 0,
createdAt: ISODate("2023-10-09T14:08:32.000Z")
},
definition: { mappings: { dynamic: true, fields: {} } }
},
stagedIndex: {
status: 'PENDING',
queryable: false,
definitionVersion: {
version: 1,
createdAt: ISODate("2023-10-09T14:51:29.000Z")
},
definition: {
mappings: { dynamic: true, fields: {} },
storedSource: true
}
}
},
{
hostname: 'atlas-n1cm1j-shard-00-01',
status: 'BUILDING',
queryable: true,
mainIndex: {
status: 'READY',
queryable: true,
definitionVersion: {
version: 0,
createdAt: ISODate("2023-10-09T14:08:32.000Z")
},
definition: { mappings: { dynamic: true, fields: {} } }
},
stagedIndex: {
status: 'PENDING',
queryable: false,
definitionVersion: {
version: 1,
createdAt: ISODate("2023-10-09T14:51:29.000Z")
},
definition: {
mappings: { dynamic: true, fields: {} },
storedSource: true
}
}
},
{
hostname: 'atlas-n1cm1j-shard-00-00',
status: 'BUILDING',
queryable: true,
mainIndex: {
status: 'READY',
queryable: true,
definitionVersion: {
version: 0,
createdAt: ISODate("2023-10-09T14:08:32.000Z")
},
definition: { mappings: { dynamic: true, fields: {} } }
}
}
]
},
{
id: '65240be420da840844a4d077',
name: 'synonym_mappings',
status: 'READY',
queryable: true,
latestDefinitionVersion: {
version: 0,
createdAt: ISODate("2023-10-09T14:19:16.305Z")
},
latestDefinition: {
mappings: {
dynamic: true,
fields: {
fullplot: { type: 'string' }
}
},
synonyms: [
{
name: 'synonym_mapping',
analyzer: 'lucene.english',
source: { collection: 'synonyms' }
}
]
},
synonymMappingStatus: 'READY',
synonymMappingStatusDetail: [
{
synonym_mapping: {
status: 'READY',
queryable: true
}
}
],
statusDetail: [
{
hostname: 'atlas-n1cm1j-shard-00-02',
status: 'READY',
queryable: true,
mainIndex: {
status: 'READY',
queryable: true,
definitionVersion: {
version: 0,
createdAt: ISODate("2023-10-09T14:19:16.000Z")
},
definition: {
mappings: {
dynamic: true,
fields: {
fullplot: {
type: 'string',
indexOptions: 'offsets',
store: true,
norms: 'include'
}
}
},
synonyms: [
{
name: 'synonym_mapping',
analyzer: 'lucene.english',
source: { collection: 'synonyms' }
}
]
},
synonymMappingStatus: 'READY',
synonymMappingStatusDetail: [
{
synonym_mapping: {
status: 'READY',
queryable: true
}
}
]
}
},
{
hostname: 'atlas-n1cm1j-shard-00-01',
status: 'READY',
queryable: true,
mainIndex: {
status: 'READY',
queryable: true,
definitionVersion: {
version: 0,
createdAt: ISODate("2023-10-09T14:19:16.000Z")
},
definition: {
mappings: {
dynamic: true,
fields: {
fullplot: {
服务器托管网 type: 'string',
indexOptions: 'offsets',
store: true,
norms: 'include'
}
}
},
synonyms: [
{
name: 'synonym_mapping',
analyzer: 'lucene.english',
source: { collection: 'synonyms' }
}
]
},
synonymMappingStatus: 'READY',
synonymMappingStatusDetail: [
{
synonym_mapping: {
status: 'READY',
queryable: true
}
}
]
}
},
{
hostname: 'atlas-n1cm1j-shard-00-00',
status: 'READY',
queryable: true,
mainIndex: {
status: 'READY',
queryable: true,
definitionVersion: {
version: 0,
createdAt: ISODate("2023-10-09T14:19:16.000Z")
},
definition: {
mappings: {
dynamic: true,
fields: {
fullplot: {
type: 'string',
indexOptions: 'offsets',
store: true,
norms: 'include'
}
}
},
synonyms: [
{
name: 'synonym_mapping',
analyzer: 'lucene.english',
source: { collection: 'synonyms' }
}
]
},
synonymMappingStatus: 'READY',
synonymMappingStatusDetail: [
{
synonym_mapping: {
status: 'READY',
queryable: true
}
}
]
}
}
]
}
]
按名称返回单个搜索索引
下面的示例将返回电影集合中名为synonym-mappings
的索引:
db.movies.aggregate(
[
{
$listSearchIndexes:
{
name: "synonym-mappings"
}
}
]
)
结果为:
[
{
id: '65240be420da840844a4d077',
name: 'synonym_mappings',
status: 'READY',
queryable: true,
latestDefinitionVersion: {
version: 0,
createdAt: ISODate("2023-10-09T14:19:16.305Z")
},
latestDefinition: {
mappings: {
dynamic: true,
fields: {
fullplot: { type: 'string' }
}
},
synonyms: [
{
name: 'synonym_mapping',
analyzer: 'lucene.english',
source: { collection: 'synonyms' }
}
]
},
synonymMappingStatus: 'READY',
synonymMappingStatusDetail: [
{
synonym_mapping: {
status: 'READY',
queryable: true
}
}
],
statusDetail: [
{
hostname: 'atlas-n1cm1j-shard-00-02',
status: 'READY',
queryable: true,
mainIndex: {
status: 'READY',
queryable: true,
definitionVersion: {
version: 0,
createdAt: ISODate("2023-10-09T14:19:16.000Z")
},
definition: {
mappings: {
dynamic: true,
fields: {
fullplot: {
type: 'string',
indexOptions: 'offsets',
store: true,
norms: 'include'
}
}
},
synonyms: [
{
name: 'synonym_mapping',
analyzer: 'lucene.english',
source: { collection: 'synonyms' }
}
]
},
synonymMappingStatus: 'READY',
synonymMappingStatusDetail: [
{
synonym_mapping: {
status: 'READY',
queryable: true
}
}
]
}
},
{
hostname: 'atlas-n1cm1j-shard-00-01',
status: 'READY',
queryable: true,
mainIndex: {
status: 'READY',
queryable: true,
definitionVersion: {
version: 0,
createdAt: ISODate("2023-10-09T14:19:16.000Z")
},
definition: {
mappings: {
dynamic: true,
fields: {
fullplot: {
type: 'string',
indexOptions: 'offsets',
store: true,
norms: 'include'
}
}
},
synonyms: [
{
name: 'synonym_mapping',
analyzer: 'lucene.english',
source: { collection: 'synonyms' }
}
]
},
synonymMappingStatus: 'READY',
synonymMappingStatusDetail: [
{
synonym_mapping: {
status: 'READY',
queryable: true
}
}
]
}
},
{
hostname: 'atlas-n1cm1j-shard-00-00',
status: 'READY',
queryable: true,
mainIndex: {
status: 'READY',
queryable: true,
definitionVersion: {
version: 0,
createdAt: ISODate("2023-10-09T14:19:16.000Z")
},
definition: {
mappings: {
dynamic: true,
fields: {
fullplot: {
type: 'string',
indexOptions: 'offsets',
store: true,
norms: 'include'
}
}
},
synonyms: [
{
name: 'synonym_mapping',
analyzer: 'lucene.english',
source: { collection: 'synonyms' }
}
]
},
synonymMappingStatus: 'READY',
synonymMappingStatusDetail: [
{
synonym_mapping: {
status: 'READY',
queryable: true
}
}
]
}
}
]
}
]
按id返回单个搜索索引
下面的示例以提供的id
返回搜索索引:
db.movies.aggregate(
[
{
$listSearchIndexes:
{
id: "6524096020da84服务器托管网0844a4c4a7"
}
}
]
)
结果:
[
{
id: '6524096020da840844a4c4a7',
name: 'default',
status: 'BUILDING',
queryable: true,
latestDefinitionVersion: {
version: 2,
createdAt: ISODate("2023-10-09T14:51:57.355Z")
},
latestDefinition: {
mappings: { dynamic: true },
storedSource: { include: [ 'awards.text' ] }
},
statusDetail: [
{
hostname: 'atlas-n1cm1j-shard-00-02',
status: 'BUILDING',
queryable: true,
mainIndex: {
status: 'READY',
queryable: true,
definitionVersion: {
version: 0,
createdAt: ISODate("2023-10-09T14:08:32.000Z")
},
definition: { mappings: { dynamic: true, fields: {} } }
},
stagedIndex: {
status: 'PENDING',
queryable: false,
definitionVersion: {
version: 1,
createdAt: ISODate("2023-10-09T14:51:29.000Z")
},
definition: {
mappings: { dynamic: true, fields: {} },
storedSource: true
}
}
},
{
hostname: 'atlas-n1cm1j-shard-00-01',
status: 'BUILDING',
queryable: true,
mainIndex: {
status: 'READY',
queryable: true,
definitionVersion: {
version: 0,
createdAt: ISODate("2023-10-09T14:08:32.000Z")
},
definition: { mappings: { dynamic: true, fields: {} } }
},
stagedIndex: {
status: 'PENDING',
queryable: false,
definitionVersion: {
version: 1,
createdAt: ISODate("2023-10-09T14:51:29.000Z")
},
definition: {
mappings: { dynamic: true, fields: {} },
storedSource: true
}
}
},
{
hostname: 'atlas-n1cm1j-shard-00-00',
status: 'BUILDING',
queryable: true,
mainIndex: {
status: 'READY',
queryable: true,
definitionVersion: {
version: 0,
createdAt: ISODate("2023-10-09T14:08:32.000Z")
},
definition: { mappings: { dynamic: true, fields: {} } }
}
}
]
}
]
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