Get cross-cluster replication stats.
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If the Elasticsearch security features are enabled, you must have
monitorcluster privileges on the cluster that contains the follower index. For more information, see Security privileges.
This API gets cross-cluster replication stats. This API will return all stats related to cross-cluster replication. In particular, this API returns stats about auto-following, and returns the same shard-level stats as in the get follower stats API.
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auto_follow_stats -
(object) An object representing stats for the auto-follow coordinator.
Properties of
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_errorsfield. -
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.
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number_of_successful_follow_indices - (long) The number of indices that the auto-follow coordinator successfully followed.
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recent_auto_follow_errors - (array) An array of objects representing failures by the auto-follow coordinator.
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follow_stats - (object) An object representing shard-level stats for follower indices; refer to the details of the response in the get follower stats API.
This example retrieves cross-cluster replication stats:
GET /_ccr/stats
The API returns the following results:
{
"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
}
]
}
]
}
}