OpenSearch/docs/reference/ccr/apis/get-ccr-stats.asciidoc

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[role="xpack"]
[testenv="platinum"]
[[ccr-get-stats]]
=== Get {ccr} stats API
[subs="attributes"]
++++
<titleabbrev>Get {ccr-init} stats</titleabbrev>
++++
Get {ccr} stats.
[[ccr-get-stats-request]]
==== {api-request-title}
//////////////////////////
[source,console]
--------------------------------------------------
PUT /follower_index/_ccr/follow?wait_for_active_shards=1
{
"remote_cluster" : "remote_cluster",
"leader_index" : "leader_index"
}
--------------------------------------------------
// TESTSETUP
// TEST[setup:remote_cluster_and_leader_index]
[source,console]
--------------------------------------------------
POST /follower_index/_ccr/pause_follow
--------------------------------------------------
// TEARDOWN
//////////////////////////
[source,console]
--------------------------------------------------
GET /_ccr/stats
--------------------------------------------------
==== {api-prereq-title}
* If the {es} {security-features} are enabled, you must have `monitor` cluster
privileges on the cluster that contains the follower index. For more information,
see {stack-ov}/security-privileges.html[Security privileges].
[[ccr-get-stats-desc]]
==== {api-description-title}
This API gets {ccr} stats. This API will return all stats related to {ccr}. In
particular, this API returns stats about auto-following, and returns the same
shard-level stats as in the <<ccr-get-follow-stats,get follower stats API>>.
[[ccr-get-stats-response-body]]
==== {api-response-body-title}
This API returns the following information:
`auto_follow_stats`::
(object) An object representing stats for the auto-follow coordinator.
This object consists of the following fields:
`auto_follow_stats.number_of_failed_follow_indices`::
(long) The number of indices that the auto-follow coordinator failed to
automatically follow. The causes of recent failures are captured in the logs
of the elected master node and in the
`auto_follow_stats.recent_auto_follow_errors` field.
`auto_follow_stats.number_of_failed_remote_cluster_state_requests`::
(long) The number of times that the auto-follow coordinator failed to retrieve
the cluster state from a remote cluster registered in a collection of
auto-follow patterns.
`auto_follow_stats.number_of_successful_follow_indices`::
(long) The number of indices that the auto-follow coordinator successfully
followed.
`auto_follow_stats.recent_auto_follow_errors`::
(array) An array of objects representing failures by the auto-follow
coordinator.
`follow_stats`::
(object) An object representing shard-level stats for follower indices; refer
to the details of the response in the
<<ccr-get-follow-stats,get follower stats API>>.
[[ccr-get-stats-examples]]
==== {api-examples-title}
This example retrieves {ccr} stats:
[source,console]
--------------------------------------------------
GET /_ccr/stats
--------------------------------------------------
The API returns the following results:
[source,console-result]
--------------------------------------------------
{
"auto_follow_stats" : {
"number_of_failed_follow_indices" : 0,
"number_of_failed_remote_cluster_state_requests" : 0,
"number_of_successful_follow_indices" : 1,
"recent_auto_follow_errors" : [],
"auto_followed_clusters" : []
},
"follow_stats" : {
"indices" : [
{
"index" : "follower_index",
"shards" : [
{
"remote_cluster" : "remote_cluster",
"leader_index" : "leader_index",
"follower_index" : "follower_index",
"shard_id" : 0,
"leader_global_checkpoint" : 1024,
"leader_max_seq_no" : 1536,
"follower_global_checkpoint" : 768,
"follower_max_seq_no" : 896,
"last_requested_seq_no" : 897,
"outstanding_read_requests" : 8,
"outstanding_write_requests" : 2,
"write_buffer_operation_count" : 64,
"follower_mapping_version" : 4,
"follower_settings_version" : 2,
"follower_aliases_version" : 8,
"total_read_time_millis" : 32768,
"total_read_remote_exec_time_millis" : 16384,
"successful_read_requests" : 32,
"failed_read_requests" : 0,
"operations_read" : 896,
"bytes_read" : 32768,
"total_write_time_millis" : 16384,
"write_buffer_size_in_bytes" : 1536,
"successful_write_requests" : 16,
"failed_write_requests" : 0,
"operations_written" : 832,
"read_exceptions" : [ ],
"time_since_last_read_millis" : 8
}
]
}
]
}
}
--------------------------------------------------
// TESTRESPONSE[s/"number_of_failed_follow_indices" : 0/"number_of_failed_follow_indices" : $body.auto_follow_stats.number_of_failed_follow_indices/]
// TESTRESPONSE[s/"number_of_failed_remote_cluster_state_requests" : 0/"number_of_failed_remote_cluster_state_requests" : $body.auto_follow_stats.number_of_failed_remote_cluster_state_requests/]
// TESTRESPONSE[s/"number_of_successful_follow_indices" : 1/"number_of_successful_follow_indices" : $body.auto_follow_stats.number_of_successful_follow_indices/]
// TESTRESPONSE[s/"recent_auto_follow_errors" : \[\]/"recent_auto_follow_errors" : $body.auto_follow_stats.recent_auto_follow_errors/]
// TESTRESPONSE[s/"auto_followed_clusters" : \[\]/"auto_followed_clusters" : $body.auto_follow_stats.auto_followed_clusters/]
// TESTRESPONSE[s/"leader_global_checkpoint" : 1024/"leader_global_checkpoint" : $body.follow_stats.indices.0.shards.0.leader_global_checkpoint/]
// TESTRESPONSE[s/"leader_max_seq_no" : 1536/"leader_max_seq_no" : $body.follow_stats.indices.0.shards.0.leader_max_seq_no/]
// TESTRESPONSE[s/"follower_global_checkpoint" : 768/"follower_global_checkpoint" : $body.follow_stats.indices.0.shards.0.follower_global_checkpoint/]
// TESTRESPONSE[s/"follower_max_seq_no" : 896/"follower_max_seq_no" : $body.follow_stats.indices.0.shards.0.follower_max_seq_no/]
// TESTRESPONSE[s/"last_requested_seq_no" : 897/"last_requested_seq_no" : $body.follow_stats.indices.0.shards.0.last_requested_seq_no/]
// TESTRESPONSE[s/"outstanding_read_requests" : 8/"outstanding_read_requests" : $body.follow_stats.indices.0.shards.0.outstanding_read_requests/]
// TESTRESPONSE[s/"outstanding_write_requests" : 2/"outstanding_write_requests" : $body.follow_stats.indices.0.shards.0.outstanding_write_requests/]
// TESTRESPONSE[s/"write_buffer_operation_count" : 64/"write_buffer_operation_count" : $body.follow_stats.indices.0.shards.0.write_buffer_operation_count/]
// TESTRESPONSE[s/"follower_mapping_version" : 4/"follower_mapping_version" : $body.follow_stats.indices.0.shards.0.follower_mapping_version/]
// TESTRESPONSE[s/"follower_settings_version" : 2/"follower_settings_version" : $body.follow_stats.indices.0.shards.0.follower_settings_version/]
// TESTRESPONSE[s/"follower_aliases_version" : 8/"follower_aliases_version" : $body.follow_stats.indices.0.shards.0.follower_aliases_version/]
// TESTRESPONSE[s/"total_read_time_millis" : 32768/"total_read_time_millis" : $body.follow_stats.indices.0.shards.0.total_read_time_millis/]
// TESTRESPONSE[s/"total_read_remote_exec_time_millis" : 16384/"total_read_remote_exec_time_millis" : $body.follow_stats.indices.0.shards.0.total_read_remote_exec_time_millis/]
// TESTRESPONSE[s/"successful_read_requests" : 32/"successful_read_requests" : $body.follow_stats.indices.0.shards.0.successful_read_requests/]
// TESTRESPONSE[s/"failed_read_requests" : 0/"failed_read_requests" : $body.follow_stats.indices.0.shards.0.failed_read_requests/]
// TESTRESPONSE[s/"operations_read" : 896/"operations_read" : $body.follow_stats.indices.0.shards.0.operations_read/]
// TESTRESPONSE[s/"bytes_read" : 32768/"bytes_read" : $body.follow_stats.indices.0.shards.0.bytes_read/]
// TESTRESPONSE[s/"total_write_time_millis" : 16384/"total_write_time_millis" : $body.follow_stats.indices.0.shards.0.total_write_time_millis/]
// TESTRESPONSE[s/"write_buffer_size_in_bytes" : 1536/"write_buffer_size_in_bytes" : $body.follow_stats.indices.0.shards.0.write_buffer_size_in_bytes/]
// TESTRESPONSE[s/"successful_write_requests" : 16/"successful_write_requests" : $body.follow_stats.indices.0.shards.0.successful_write_requests/]
// TESTRESPONSE[s/"failed_write_requests" : 0/"failed_write_requests" : $body.follow_stats.indices.0.shards.0.failed_write_requests/]
// TESTRESPONSE[s/"operations_written" : 832/"operations_written" : $body.follow_stats.indices.0.shards.0.operations_written/]
// TESTRESPONSE[s/"time_since_last_read_millis" : 8/"time_since_last_read_millis" : $body.follow_stats.indices.0.shards.0.time_since_last_read_millis/]