[DOCS] Augments cat transforms API (#53776)

Co-Authored-By: Benjamin Trent <[email protected]>

Author: lcawl

docs/reference/cat/transforms.asciidoc

@@ -6,23 +6,180 @@
 
 Returns configuration and usage information about {transforms}.
 
-
 [[cat-transforms-api-request]]
 ==== {api-request-title}
 
+`GET /_cat/transforms/<transform_id>` +
+
+`GET /_cat/transforms/_all` +
+
+`GET /_cat/transforms/*` +
+
 `GET /_cat/transforms`
 
+[[cat-transforms-api-prereqs]]
+==== {api-prereq-title}
+
+* If the {es} {security-features} are enabled, you must have `monitor_transform` 
+cluster privileges to use this API. The built-in `transform_user` role has these 
+privileges. For more information, see <<security-privileges>> and 
+<<built-in-roles>>.
 
 //[[cat-transforms-api-desc]]
 //==== {api-description-title}
 
+[[cat-transforms-api-path-params]]
+==== {api-path-parms-title}
+
+`<transform_id>`::
+(Optional, string)
+include::{docdir}/rest-api/common-parms.asciidoc[tag=transform-id-wildcard]
+
+[[cat-transforms-api-query-params]]
+==== {api-query-parms-title}
+
+`allow_no_match`::
+(Optional, boolean)
+include::{docdir}/rest-api/common-parms.asciidoc[tag=allow-no-match-transforms1]
+
+include::{docdir}/rest-api/common-parms.asciidoc[tag=http-format]
+
+`from`::
+(Optional, integer)
+include::{docdir}/rest-api/common-parms.asciidoc[tag=from-transforms]
+
+include::{docdir}/rest-api/common-parms.asciidoc[tag=cat-h]
++
+If you do not specify which columns to include, the API returns the default
+columns. If you explicitly specify one or more columns, it returns only the
+specified columns.
++
+Valid columns are:
+
+`changes_last_detection_time`, `cldt`:::
+include::{docdir}/rest-api/common-parms.asciidoc[tag=checkpointing-changes-last-detected-at]
+
+`checkpoint_duration_time_exp_avg`, `cdtea`, `checkpointTimeExpAvg`:::
+include::{docdir}/rest-api/common-parms.asciidoc[tag=exponential-avg-checkpoint-duration-ms]
+
+`create_time`, `ct`, `createTime`:::
+(Default)
+The time the {transform} was created.
+
+`description`, `d`:::
+(Default)
+The description of the {transform}.
+
+`dest_index`, `di`, `destIndex`:::
+(Default)
+include::{docdir}/rest-api/common-parms.asciidoc[tag=dest-index]
+
+`document_total`, `dt`:::
+include::{docdir}/rest-api/common-parms.asciidoc[tag=docs-processed]
+
+`frequency`, `f`:::
+(Default)
+include::{docdir}/rest-api/common-parms.asciidoc[tag=frequency]
+
+`id`:::
+(Default)
+include::{docdir}/rest-api/common-parms.asciidoc[tag=transform-id]
+
+`index_failure`, `if`:::
+include::{docdir}/rest-api/common-parms.asciidoc[tag=index-failures]
+
+`index_time`, `itime`:::
+include::{docdir}/rest-api/common-parms.asciidoc[tag=index-time-ms]
+
+`index_total`, `it`:::
+include::{docdir}/rest-api/common-parms.asciidoc[tag=index-total]
+
+`indexed_documents_exp_avg`, `idea`:::
+include::{docdir}/rest-api/common-parms.asciidoc[tag=exponential-avg-documents-indexed]
+
+`invocation_total`, `itotal`:::
+include::{docdir}/rest-api/common-parms.asciidoc[tag=trigger-count]
+
+`max_page_search_size`, `mpsz`:::
+(Default)
+include::{docdir}/rest-api/common-parms.asciidoc[tag=pivot-max-page-search-size]
+
+`page_total`, `pt`:::
+include::{docdir}/rest-api/common-parms.asciidoc[tag=pages-processed]
+
+`pipeline`, `p`:::
+(Default)
+include::{docdir}/rest-api/common-parms.asciidoc[tag=dest-pipeline]
+
+`processed_documents_exp_avg`, `pdea`:::
+include::{docdir}/rest-api/common-parms.asciidoc[tag=exponential-avg-documents-processed]
+
+`reason`, `r`:::
+include::{docdir}/rest-api/common-parms.asciidoc[tag=state-transform-reason]
+
+`search_failure`, `sf`:::
+include::{docdir}/rest-api/common-parms.asciidoc[tag=search-failures]
+
+`search_time`, `stime`:::
+include::{docdir}/rest-api/common-parms.asciidoc[tag=search-time-ms]
+
+`search_total`, `st`:::
+include::{docdir}/rest-api/common-parms.asciidoc[tag=search-total]
+
+`source_index`, `si`, `sourceIndex`:::
+(Default)
+include::{docdir}/rest-api/common-parms.asciidoc[tag=source-index-transforms]
+
+`state`, `s`:::
+(Default)
+include::{docdir}/rest-api/common-parms.asciidoc[tag=state-transform]
+
+`transform_type`, `tt`:::
+(Default)
+Indicates the type of {transform}: `batch` or `continuous`. 
+
+`version`, `v`:::
+(Default)
+The version of {es} that existed on the node when the {transform} was
+created.
+
+include::{docdir}/rest-api/common-parms.asciidoc[tag=help]
+
+include::{docdir}/rest-api/common-parms.asciidoc[tag=cat-s]
+
+`size`::
+(Optional, integer)
+include::{docdir}/rest-api/common-parms.asciidoc[tag=size-transforms]
+
+include::{docdir}/rest-api/common-parms.asciidoc[tag=time]
 
-//[[cat-transforms-api-query-params]]
-//==== {api-query-parms-title}
+include::{docdir}/rest-api/common-parms.asciidoc[tag=cat-v]
 
+[[cat-transforms-api-examples]]
+==== {api-examples-title}
 
-//[[cat-transforms-api-response-codes]]
-//==== {api-response-codes-title}
+[source,console]
+--------------------------------------------------
+GET /_cat/transforms?v&format=json
+--------------------------------------------------
+// TEST[skip:kibana sample data]
 
-//[[cat-transforms-api-examples]]
-//==== {api-examples-title}
+[source,console-result]
+----
+[
+  {
+    "id" : "ecommerce_transform",
+    "create_time" : "2020-03-20T20:31:25.077Z",
+    "version" : "7.7.0",
+    "source_index" : "kibana_sample_data_ecommerce",
+    "dest_index" : "kibana_sample_data_ecommerce_transform",
+    "pipeline" : null,
+    "description" : "Maximum priced ecommerce data by customer_id in Asia",
+    "transform_type" : "continuous",
+    "frequency" : "5m",
+    "max_page_search_size" : "500",
+    "state" : "STARTED"
+  }
+]
+----
+// TESTRESPONSE[skip:kibana sample data]

docs/reference/redirects.asciidoc

@@ -385,8 +385,3 @@ coming::[7.x]
 === Data stream APIs
 
 coming::[7.x]
-
-[role="exclude",id="cat-transform"]
-=== cat transform API
-
-See <<cat-transforms>>.

docs/reference/rest-api/common-parms.asciidoc

@@ -99,6 +99,10 @@ tag::bytes[]
 (Optional, <<byte-units,byte size units>>) Unit used to display byte values.
 end::bytes[]
 
+tag::checkpointing-changes-last-detected-at[]
+The timestamp when changes were last detected in the source indices.
+end::checkpointing-changes-last-detected-at[]
+
 tag::cluster-health-status[]
 (string)
 Health status of the cluster, based on the state of its primary and replica
@@ -178,6 +182,11 @@ is based on Lucene documents. {es} reclaims the disk space of deleted Lucene
 documents when a segment is merged.
 end::docs-deleted[]
 
+tag::docs-processed[]
+The number of documents that have been processed from the source index of
+the {transform}.
+end::docs-processed[]
+
 tag::enrich-policy[]
 Enrich policy name
 used to limit the request.
@@ -207,6 +216,20 @@ Wildcard expressions are not accepted.
 --
 end::expand-wildcards[]
 
+tag::exponential-avg-checkpoint-duration-ms[]
+Exponential moving average of the duration of the checkpoint, in milliseconds.
+end::exponential-avg-checkpoint-duration-ms[]
+
+tag::exponential-avg-documents-indexed[]
+Exponential moving average of the number of new documents that have been
+indexed.
+end::exponential-avg-documents-indexed[]
+
+tag::exponential-avg-documents-processed[]
+Exponential moving average of the number of documents that have been
+processed.
+end::exponential-avg-documents-processed[]
+
 tag::field_statistics[]
 `field_statistics`::
 (Optional, boolean) If `true`, the response includes the document count, sum of document frequencies,
@@ -380,6 +403,18 @@ tag::index[]
 used to limit the request.
 end::index[]
 
+tag::index-failures[]
+The number of indexing failures.
+end::index-failures[]
+
+tag::index-time-ms[]
+The amount of time spent indexing, in milliseconds.
+end::index-time-ms[]
+
+tag::index-total[]
+The number of indices created.
+end::index-total[]
+
 tag::bulk-index[]
 `_index`::
 (Optional, string)
@@ -574,6 +609,11 @@ tag::pipeline[]
 (Optional, string) ID of the pipeline to use to preprocess incoming documents.
 end::pipeline[]
 
+tag::pages-processed[]
+The number of search or bulk index operations processed. Documents are
+processed in batches instead of individually.
+end::pages-processed[]
+
 tag::path-pipeline[]
 `<pipeline>`::
 (Optional, string) Comma-separated list or wildcard expression of pipeline IDs
@@ -708,13 +748,25 @@ tag::scroll_size[]
 Defaults to 100.
 end::scroll_size[]
 
+tag::search-failures[]
+The number of search failures.
+end::search-failures[]
+
+tag::search-time-ms[]
+The amount of time spent searching, in milliseconds.
+end::search-time-ms[]
+
 tag::search_timeout[]
 `timeout`::
 (Optional, <<time-units, time units>>)
 Explicit timeout for each search request.
 Defaults to no timeout.
 end::search_timeout[]
 
+tag::search-total[]
+The number of search operations on the source index for the {transform}.
+end::search-total[]
+
 tag::search_type[]
 `search_type`::
 (Optional, string) The type of the search operation. Available options:
@@ -804,6 +856,26 @@ A query clause that retrieves a subset of data from the source index. See
 <<query-dsl>>.
 end::source-query-transforms[]
 
+tag::state-transform[]
+The status of the {transform}, which can be one of the following values:
++
+--
+* `aborting`: The {transform} is aborting.
+* `failed`: The {transform} failed. For more information about the failure,
+check the reason field.
+* `indexing`: The {transform} is actively processing data and creating new
+documents.
+* `started`: The {transform} is running but not actively indexing data.
+* `stopped`: The {transform} is stopped.
+* `stopping`: The {transform} is stopping.
+--
+end::state-transform[]
+
+tag::state-transform-reason[]
+If a {transform} has a `failed` state, this property provides details about the
+reason for the failure.
+end::state-transform-reason[]
+
 tag::stats[]
 `stats`::
 (Optional, string) Specific `tag` of the request for logging and statistical
@@ -899,6 +971,13 @@ expression. If you do not specify one of these options, the API returns
 information for all {transforms}.
 end::transform-id-wildcard[]
 
+tag::trigger-count[]
+The number of times the {transform} has been triggered by the scheduler. For 
+example, the scheduler triggers the {transform} indexer to check for updates
+or ingest new data at an interval specified in the
+<<put-transform-request-body,`frequency` property>>.
+end::trigger-count[]
+
 tag::cat-v[]
 `v`::
 (Optional, boolean) If `true`, the response includes column headings.