814 lines
24 KiB
Markdown
814 lines
24 KiB
Markdown
---
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layout: default
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title: Stats
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parent: Index APIs
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nav_order: 72
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---
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# Index Stats
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**Introduced 1.0**
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{: .label .label-purple }
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The Index Stats API provides index statistics. For data streams, the API provides statistics for the stream's backing indexes. By default, the returned statistics are index level. To receive shard-level statistics, set the `level` parameter to `shards`.
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When a shard moves to a different node, the shard-level statistics for the shard are cleared. Although the shard is no longer part of the node, the node preserves any node-level statistics to which the shard contributed.
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{: .note}
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## Path and HTTP methods
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```json
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GET /_stats
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GET /<index_ids>/_stats
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GET /<index_ids>/_stats/<metric>
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```
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## Path parameters
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The following table lists the available path parameters. All path parameters are optional.
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| Parameter | Data type | Description |
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| :--- | :--- | :--- |
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| `<index_ids>` | String | A comma-separated list of indexes, data streams, or index aliases used to filter results. Supports wildcard expressions. Defaults to `_all` (`*`).
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`<metric>` | String | A comma-separated list of metric groups that will be included in the response. For valid values, see [Metrics](#metrics). Defaults to all metrics. |
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### Metrics
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The following table lists all available metric groups.
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Metric | Description
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:--- |:----
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`_all` | Return all statistics.
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`completion` | Completion suggester statistics.
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`docs` | Returns the number of documents and the number of deleted documents that have not yet been merged. Index refresh operations can affect this statistic.
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`fielddata` | Field data statistics.
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`flush` | Flush statistics.
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`get` | Get statistics, including missing stats.
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`indexing` | Indexing statistics.
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`merge` | Merge statistics.
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`query_cache` | Query cache statistics.
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`refresh` | Refresh statistics.
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`request_cache` | Shard request cache statistics.
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`search` | Search statistics, including suggest operation statistics. Search operations can be associated with one or more groups. You can include statistics for custom groups by providing a `groups` parameter, which accepts a comma-separated list of group names. To return statistics for all groups, use `_all`.
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`segments` | Statistics about memory use of all open segments. If the `include_segment_file_sizes` parameter is `true`, this metric includes the aggregated disk usage of each Lucene index file.
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`store` | Size of the index in byte units.
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`translog` | Translog statistics.
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`warmer` | Warmer statistics.
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## Query parameters
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The following table lists the available query parameters. All query parameters are optional.
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Parameter | Data type | Description
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:--- | :--- | :---
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`expand_wildcards` | String | Specifies the type of indexes to which wildcard expressions can expand. Supports comma-separated values. Valid values are: <br> - `all`: Expand to all open and closed indexes, including hidden indexes. <br> - `open`: Expand to open indexes. <br> - `closed`: Expand to closed indexes. <br> - `hidden`: Include hidden indexes when expanding. Must be combined with `open`, `closed`, or both. <br> - `none`: Do not accept wildcard expressions. <br> Default is `open`.
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`fields` | String | A comma-separated list or a wildcard expression specifying fields to include in the statistics. Specifies the default field list if neither `completion_fields` nor `fielddata_fields` is provided.
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`completion_fields` | String | A comma-separated list or wildcard expression specifying fields to include in field-level `completion` statistics.
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`fielddata_fields` | String | A comma-separated list or wildcard expression specifying fields to include in field-level `fielddata` statistics.
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`forbid_closed_indices` | Boolean | Specifies not to collect statistics for closed indexes. Default is `true`.
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`groups` | String | A comma-separated list of search groups to include in the `search` statistics.
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`level` | String | Specifies the level used to aggregate statistics. Valid values are: <br> - `cluster`: Cluster-level statistics. <br> - `indices`: Index-level statistics. <br> - `shards`: Shard-level statistics. <br> Default is `indices`.
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`include_segment_file_sizes` | Boolean | Specifies whether to report the aggregated disk usage of each Lucene index file. Only applies to `segments` statistics. Default is `false`.
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`include_unloaded_segments` | Boolean | Specifies whether to include information from segments that are not loaded into memory. Default is `false`.
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#### Example request: One index
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```json
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GET /testindex/_stats
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```
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{% include copy-curl.html %}
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#### Example request: Comma-separated list of indexes
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```json
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GET /testindex1,testindex2/_stats
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```
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{% include copy-curl.html %}
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#### Example request: Wildcard expression
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```json
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GET /testindex*/_stats
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```
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{% include copy-curl.html %}
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#### Example request: Specific stats
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```json
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GET /testindex/_stats/refresh,flush
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```
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{% include copy-curl.html %}
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#### Example request: Expand wildcards
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```json
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GET /testindex*/_stats?expand_wildcards=open,hidden
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```
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{% include copy-curl.html %}
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#### Example request: Shard-level statistics
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```json
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GET /testindex/_stats?level=shards
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```
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{% include copy-curl.html %}
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#### Example response
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By default, the returned statistics are aggregated in the `primaries` and `total` aggregations. The `primaries` aggregation contains statistics for the primary shards. The `total` aggregation contains statistics for both primary and replica shards. The following is an example Index Stats API response:
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<details closed markdown="block">
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<summary>
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Response
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</summary>
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{: .text-delta}
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```json
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{
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"_shards": {
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"total": 2,
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"successful": 1,
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"failed": 0
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},
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"_all": {
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"primaries": {
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"docs": {
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"count": 4,
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"deleted": 0
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},
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"store": {
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"size_in_bytes": 15531,
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"reserved_in_bytes": 0
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},
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"indexing": {
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"index_total": 4,
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"index_time_in_millis": 10,
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"index_current": 0,
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"index_failed": 0,
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"delete_total": 0,
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"delete_time_in_millis": 0,
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"delete_current": 0,
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"noop_update_total": 0,
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"is_throttled": false,
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"throttle_time_in_millis": 0
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},
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"get": {
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"total": 0,
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"time_in_millis": 0,
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"exists_total": 0,
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"exists_time_in_millis": 0,
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"missing_total": 0,
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"missing_time_in_millis": 0,
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"current": 0
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},
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"search": {
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"open_contexts": 0,
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"query_total": 12,
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"query_time_in_millis": 11,
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"query_current": 0,
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"fetch_total": 12,
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"fetch_time_in_millis": 5,
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"fetch_current": 0,
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"scroll_total": 0,
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"scroll_time_in_millis": 0,
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"scroll_current": 0,
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"point_in_time_total": 0,
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"point_in_time_time_in_millis": 0,
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"point_in_time_current": 0,
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"suggest_total": 0,
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"suggest_time_in_millis": 0,
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"suggest_current": 0
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},
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"merges": {
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"current": 0,
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"current_docs": 0,
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"current_size_in_bytes": 0,
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"total": 0,
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"total_time_in_millis": 0,
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"total_docs": 0,
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"total_size_in_bytes": 0,
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"total_stopped_time_in_millis": 0,
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"total_throttled_time_in_millis": 0,
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"total_auto_throttle_in_bytes": 20971520
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},
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"refresh": {
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"total": 8,
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"total_time_in_millis": 58,
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"external_total": 7,
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"external_total_time_in_millis": 60,
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"listeners": 0
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},
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"flush": {
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"total": 1,
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"periodic": 1,
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"total_time_in_millis": 21
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},
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"warmer": {
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"current": 0,
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"total": 6,
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"total_time_in_millis": 0
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},
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"query_cache": {
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"memory_size_in_bytes": 0,
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"total_count": 0,
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"hit_count": 0,
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"miss_count": 0,
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"cache_size": 0,
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"cache_count": 0,
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"evictions": 0
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},
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"fielddata": {
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"memory_size_in_bytes": 0,
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"evictions": 0
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},
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"completion": {
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"size_in_bytes": 0
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},
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"segments": {
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"count": 4,
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"memory_in_bytes": 0,
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"terms_memory_in_bytes": 0,
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"stored_fields_memory_in_bytes": 0,
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"term_vectors_memory_in_bytes": 0,
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"norms_memory_in_bytes": 0,
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"points_memory_in_bytes": 0,
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"doc_values_memory_in_bytes": 0,
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"index_writer_memory_in_bytes": 0,
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"version_map_memory_in_bytes": 0,
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"fixed_bit_set_memory_in_bytes": 0,
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"max_unsafe_auto_id_timestamp": -1,
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"remote_store" : {
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"upload" : {
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"total_upload_size" : {
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"started_bytes" : 152419,
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"succeeded_bytes" : 152419,
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"failed_bytes" : 0
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},
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"refresh_size_lag" : {
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"total_bytes" : 0,
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"max_bytes" : 0
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},
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"max_refresh_time_lag_in_millis" : 0,
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"total_time_spent_in_millis" : 516,
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"pressure" : {
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"total_rejections" : 0
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}
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},
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"download" : {
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"total_download_size" : {
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"started_bytes" : 0,
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"succeeded_bytes" : 0,
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"failed_bytes" : 0
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},
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"total_time_spent_in_millis" : 0
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}
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},
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"file_sizes": {}
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},
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"translog": {
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"operations": 0,
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"size_in_bytes": 55,
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"uncommitted_operations": 0,
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"uncommitted_size_in_bytes": 55,
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"earliest_last_modified_age": 142622215,
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"remote_store" : {
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"upload" : {
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"total_uploads" : {
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"started" : 57,
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"failed" : 0,
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"succeeded" : 57
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},
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"total_upload_size" : {
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"started_bytes" : 16830,
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"failed_bytes" : 0,
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"succeeded_bytes" : 16830
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}
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}
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}
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},
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"request_cache": {
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"memory_size_in_bytes": 0,
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"evictions": 0,
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"hit_count": 0,
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"miss_count": 0
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},
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"recovery": {
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"current_as_source": 0,
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"current_as_target": 0,
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"throttle_time_in_millis": 0
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}
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},
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"total": {
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"docs": {
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"count": 4,
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"deleted": 0
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},
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"store": {
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"size_in_bytes": 15531,
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"reserved_in_bytes": 0
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},
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"indexing": {
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"index_total": 4,
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"index_time_in_millis": 10,
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"index_current": 0,
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"index_failed": 0,
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"delete_total": 0,
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"delete_time_in_millis": 0,
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"delete_current": 0,
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"noop_update_total": 0,
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"is_throttled": false,
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"throttle_time_in_millis": 0
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},
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"get": {
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"total": 0,
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"time_in_millis": 0,
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"exists_total": 0,
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"exists_time_in_millis": 0,
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"missing_total": 0,
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"missing_time_in_millis": 0,
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"current": 0
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},
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"search": {
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"open_contexts": 0,
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"query_total": 12,
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"query_time_in_millis": 11,
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"query_current": 0,
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"fetch_total": 12,
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"fetch_time_in_millis": 5,
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"fetch_current": 0,
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"scroll_total": 0,
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"scroll_time_in_millis": 0,
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"scroll_current": 0,
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"point_in_time_total": 0,
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"point_in_time_time_in_millis": 0,
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"point_in_time_current": 0,
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"suggest_total": 0,
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"suggest_time_in_millis": 0,
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"suggest_current": 0
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},
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"merges": {
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"current": 0,
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"current_docs": 0,
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"current_size_in_bytes": 0,
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"total": 0,
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"total_time_in_millis": 0,
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"total_docs": 0,
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"total_size_in_bytes": 0,
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"total_stopped_time_in_millis": 0,
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"total_throttled_time_in_millis": 0,
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"total_auto_throttle_in_bytes": 20971520
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},
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"refresh": {
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"total": 8,
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"total_time_in_millis": 58,
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"external_total": 7,
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"external_total_time_in_millis": 60,
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"listeners": 0
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},
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"flush": {
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"total": 1,
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"periodic": 1,
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"total_time_in_millis": 21
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},
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"warmer": {
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"current": 0,
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"total": 6,
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"total_time_in_millis": 0
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},
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"query_cache": {
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"memory_size_in_bytes": 0,
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"total_count": 0,
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"hit_count": 0,
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"miss_count": 0,
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"cache_size": 0,
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"cache_count": 0,
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"evictions": 0
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},
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"fielddata": {
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"memory_size_in_bytes": 0,
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"evictions": 0
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},
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"completion": {
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"size_in_bytes": 0
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},
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"segments": {
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"count": 4,
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"memory_in_bytes": 0,
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"terms_memory_in_bytes": 0,
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"stored_fields_memory_in_bytes": 0,
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"term_vectors_memory_in_bytes": 0,
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"norms_memory_in_bytes": 0,
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"points_memory_in_bytes": 0,
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"doc_values_memory_in_bytes": 0,
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"index_writer_memory_in_bytes": 0,
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"version_map_memory_in_bytes": 0,
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"fixed_bit_set_memory_in_bytes": 0,
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"max_unsafe_auto_id_timestamp": -1,
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"remote_store" : {
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"upload" : {
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"total_upload_size" : {
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"started_bytes" : 152419,
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"succeeded_bytes" : 152419,
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"failed_bytes" : 0
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},
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"refresh_size_lag" : {
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"total_bytes" : 0,
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"max_bytes" : 0
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},
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"max_refresh_time_lag_in_millis" : 0,
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"total_time_spent_in_millis" : 516,
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"pressure" : {
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"total_rejections" : 0
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}
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},
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"download" : {
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"total_download_size" : {
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"started_bytes" : 0,
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"succeeded_bytes" : 0,
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"failed_bytes" : 0
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},
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"total_time_spent_in_millis" : 0
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}
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},
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"file_sizes": {}
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},
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"translog": {
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"operations": 0,
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"size_in_bytes": 55,
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"uncommitted_operations": 0,
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"uncommitted_size_in_bytes": 55,
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"earliest_last_modified_age": 142622215,
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"remote_store" : {
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"upload" : {
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"total_uploads" : {
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"started" : 57,
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"failed" : 0,
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"succeeded" : 57
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},
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"total_upload_size" : {
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"started_bytes" : 16830,
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"failed_bytes" : 0,
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"succeeded_bytes" : 16830
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}
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}
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}
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},
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"request_cache": {
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"memory_size_in_bytes": 0,
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"evictions": 0,
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"hit_count": 0,
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"miss_count": 0
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},
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"recovery": {
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"current_as_source": 0,
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"current_as_target": 0,
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"throttle_time_in_millis": 0
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}
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}
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},
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"indices": {
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"testindex": {
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"uuid": "0SXXSpe9Rp-FpxXXWLOD8Q",
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"primaries": {
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"docs": {
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"count": 4,
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"deleted": 0
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},
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"store": {
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"size_in_bytes": 15531,
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"reserved_in_bytes": 0
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},
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"indexing": {
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"index_total": 4,
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"index_time_in_millis": 10,
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"index_current": 0,
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"index_failed": 0,
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"delete_total": 0,
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"delete_time_in_millis": 0,
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"delete_current": 0,
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"noop_update_total": 0,
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"is_throttled": false,
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"throttle_time_in_millis": 0
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},
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"get": {
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"total": 0,
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"time_in_millis": 0,
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"exists_total": 0,
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"exists_time_in_millis": 0,
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"missing_total": 0,
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"missing_time_in_millis": 0,
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"current": 0
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},
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"search": {
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"open_contexts": 0,
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"query_total": 12,
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"query_time_in_millis": 11,
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"query_current": 0,
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"fetch_total": 12,
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"fetch_time_in_millis": 5,
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"fetch_current": 0,
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"scroll_total": 0,
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"scroll_time_in_millis": 0,
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"scroll_current": 0,
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"point_in_time_total": 0,
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"point_in_time_time_in_millis": 0,
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"point_in_time_current": 0,
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"suggest_total": 0,
|
|
"suggest_time_in_millis": 0,
|
|
"suggest_current": 0
|
|
},
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"merges": {
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"current": 0,
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|
"current_docs": 0,
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|
"current_size_in_bytes": 0,
|
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"total": 0,
|
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"total_time_in_millis": 0,
|
|
"total_docs": 0,
|
|
"total_size_in_bytes": 0,
|
|
"total_stopped_time_in_millis": 0,
|
|
"total_throttled_time_in_millis": 0,
|
|
"total_auto_throttle_in_bytes": 20971520
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|
},
|
|
"refresh": {
|
|
"total": 8,
|
|
"total_time_in_millis": 58,
|
|
"external_total": 7,
|
|
"external_total_time_in_millis": 60,
|
|
"listeners": 0
|
|
},
|
|
"flush": {
|
|
"total": 1,
|
|
"periodic": 1,
|
|
"total_time_in_millis": 21
|
|
},
|
|
"warmer": {
|
|
"current": 0,
|
|
"total": 6,
|
|
"total_time_in_millis": 0
|
|
},
|
|
"query_cache": {
|
|
"memory_size_in_bytes": 0,
|
|
"total_count": 0,
|
|
"hit_count": 0,
|
|
"miss_count": 0,
|
|
"cache_size": 0,
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"cache_count": 0,
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|
"evictions": 0
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|
},
|
|
"fielddata": {
|
|
"memory_size_in_bytes": 0,
|
|
"evictions": 0
|
|
},
|
|
"completion": {
|
|
"size_in_bytes": 0
|
|
},
|
|
"segments": {
|
|
"count": 4,
|
|
"memory_in_bytes": 0,
|
|
"terms_memory_in_bytes": 0,
|
|
"stored_fields_memory_in_bytes": 0,
|
|
"term_vectors_memory_in_bytes": 0,
|
|
"norms_memory_in_bytes": 0,
|
|
"points_memory_in_bytes": 0,
|
|
"doc_values_memory_in_bytes": 0,
|
|
"index_writer_memory_in_bytes": 0,
|
|
"version_map_memory_in_bytes": 0,
|
|
"fixed_bit_set_memory_in_bytes": 0,
|
|
"max_unsafe_auto_id_timestamp": -1,
|
|
"remote_store" : {
|
|
"upload" : {
|
|
"total_upload_size" : {
|
|
"started_bytes" : 152419,
|
|
"succeeded_bytes" : 152419,
|
|
"failed_bytes" : 0
|
|
},
|
|
"refresh_size_lag" : {
|
|
"total_bytes" : 0,
|
|
"max_bytes" : 0
|
|
},
|
|
"max_refresh_time_lag_in_millis" : 0,
|
|
"total_time_spent_in_millis" : 516,
|
|
"pressure" : {
|
|
"total_rejections" : 0
|
|
}
|
|
},
|
|
"download" : {
|
|
"total_download_size" : {
|
|
"started_bytes" : 0,
|
|
"succeeded_bytes" : 0,
|
|
"failed_bytes" : 0
|
|
},
|
|
"total_time_spent_in_millis" : 0
|
|
}
|
|
},
|
|
"file_sizes": {}
|
|
},
|
|
"translog": {
|
|
"operations": 0,
|
|
"size_in_bytes": 55,
|
|
"uncommitted_operations": 0,
|
|
"uncommitted_size_in_bytes": 55,
|
|
"earliest_last_modified_age": 142622215,
|
|
"remote_store" : {
|
|
"upload" : {
|
|
"total_uploads" : {
|
|
"started" : 57,
|
|
"failed" : 0,
|
|
"succeeded" : 57
|
|
},
|
|
"total_upload_size" : {
|
|
"started_bytes" : 16830,
|
|
"failed_bytes" : 0,
|
|
"succeeded_bytes" : 16830
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|
}
|
|
}
|
|
}
|
|
},
|
|
"request_cache": {
|
|
"memory_size_in_bytes": 0,
|
|
"evictions": 0,
|
|
"hit_count": 0,
|
|
"miss_count": 0
|
|
},
|
|
"recovery": {
|
|
"current_as_source": 0,
|
|
"current_as_target": 0,
|
|
"throttle_time_in_millis": 0
|
|
}
|
|
},
|
|
"total": {
|
|
"docs": {
|
|
"count": 4,
|
|
"deleted": 0
|
|
},
|
|
"store": {
|
|
"size_in_bytes": 15531,
|
|
"reserved_in_bytes": 0
|
|
},
|
|
"indexing": {
|
|
"index_total": 4,
|
|
"index_time_in_millis": 10,
|
|
"index_current": 0,
|
|
"index_failed": 0,
|
|
"delete_total": 0,
|
|
"delete_time_in_millis": 0,
|
|
"delete_current": 0,
|
|
"noop_update_total": 0,
|
|
"is_throttled": false,
|
|
"throttle_time_in_millis": 0
|
|
},
|
|
"get": {
|
|
"total": 0,
|
|
"time_in_millis": 0,
|
|
"exists_total": 0,
|
|
"exists_time_in_millis": 0,
|
|
"missing_total": 0,
|
|
"missing_time_in_millis": 0,
|
|
"current": 0
|
|
},
|
|
"search": {
|
|
"open_contexts": 0,
|
|
"query_total": 12,
|
|
"query_time_in_millis": 11,
|
|
"query_current": 0,
|
|
"fetch_total": 12,
|
|
"fetch_time_in_millis": 5,
|
|
"fetch_current": 0,
|
|
"scroll_total": 0,
|
|
"scroll_time_in_millis": 0,
|
|
"scroll_current": 0,
|
|
"point_in_time_total": 0,
|
|
"point_in_time_time_in_millis": 0,
|
|
"point_in_time_current": 0,
|
|
"suggest_total": 0,
|
|
"suggest_time_in_millis": 0,
|
|
"suggest_current": 0
|
|
},
|
|
"merges": {
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|
"current": 0,
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|
"current_docs": 0,
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|
"current_size_in_bytes": 0,
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"total": 0,
|
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"total_time_in_millis": 0,
|
|
"total_docs": 0,
|
|
"total_size_in_bytes": 0,
|
|
"total_stopped_time_in_millis": 0,
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|
"total_throttled_time_in_millis": 0,
|
|
"total_auto_throttle_in_bytes": 20971520
|
|
},
|
|
"refresh": {
|
|
"total": 8,
|
|
"total_time_in_millis": 58,
|
|
"external_total": 7,
|
|
"external_total_time_in_millis": 60,
|
|
"listeners": 0
|
|
},
|
|
"flush": {
|
|
"total": 1,
|
|
"periodic": 1,
|
|
"total_time_in_millis": 21
|
|
},
|
|
"warmer": {
|
|
"current": 0,
|
|
"total": 6,
|
|
"total_time_in_millis": 0
|
|
},
|
|
"query_cache": {
|
|
"memory_size_in_bytes": 0,
|
|
"total_count": 0,
|
|
"hit_count": 0,
|
|
"miss_count": 0,
|
|
"cache_size": 0,
|
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"cache_count": 0,
|
|
"evictions": 0
|
|
},
|
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"fielddata": {
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|
"memory_size_in_bytes": 0,
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"evictions": 0
|
|
},
|
|
"completion": {
|
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"size_in_bytes": 0
|
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},
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"segments": {
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"count": 4,
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"memory_in_bytes": 0,
|
|
"terms_memory_in_bytes": 0,
|
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"stored_fields_memory_in_bytes": 0,
|
|
"term_vectors_memory_in_bytes": 0,
|
|
"norms_memory_in_bytes": 0,
|
|
"points_memory_in_bytes": 0,
|
|
"doc_values_memory_in_bytes": 0,
|
|
"index_writer_memory_in_bytes": 0,
|
|
"version_map_memory_in_bytes": 0,
|
|
"fixed_bit_set_memory_in_bytes": 0,
|
|
"max_unsafe_auto_id_timestamp": -1,
|
|
"remote_store" : {
|
|
"upload" : {
|
|
"total_upload_size" : {
|
|
"started_bytes" : 152419,
|
|
"succeeded_bytes" : 152419,
|
|
"failed_bytes" : 0
|
|
},
|
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"refresh_size_lag" : {
|
|
"total_bytes" : 0,
|
|
"max_bytes" : 0
|
|
},
|
|
"max_refresh_time_lag_in_millis" : 0,
|
|
"total_time_spent_in_millis" : 516,
|
|
"pressure" : {
|
|
"total_rejections" : 0
|
|
}
|
|
},
|
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"download" : {
|
|
"total_download_size" : {
|
|
"started_bytes" : 0,
|
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"succeeded_bytes" : 0,
|
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"failed_bytes" : 0
|
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},
|
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"total_time_spent_in_millis" : 0
|
|
}
|
|
},
|
|
"file_sizes": {}
|
|
},
|
|
"translog": {
|
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"operations": 0,
|
|
"size_in_bytes": 55,
|
|
"uncommitted_operations": 0,
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"uncommitted_size_in_bytes": 55,
|
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"earliest_last_modified_age": 142622215,
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"remote_store" : {
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"upload" : {
|
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"total_uploads" : {
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"started" : 57,
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"failed" : 0,
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"succeeded" : 57
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},
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"total_upload_size" : {
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"started_bytes" : 16830,
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"failed_bytes" : 0,
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"succeeded_bytes" : 16830
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}
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}
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}
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|
},
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"request_cache": {
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"memory_size_in_bytes": 0,
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"evictions": 0,
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|
"hit_count": 0,
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"miss_count": 0
|
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},
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"recovery": {
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"current_as_source": 0,
|
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"current_as_target": 0,
|
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"throttle_time_in_millis": 0
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
```
|
|
</details>
|
|
|
|
## Response fields
|
|
|
|
For information about response fields, see [Nodes Stats API response fields]({{site.url}}{{site.baseurl}}/api-reference/nodes-apis/nodes-stats/#indices).
|