Create or update auto-follow patterns
Generally available; Added in 6.5.0
Create a collection of cross-cluster replication auto-follow patterns for a remote cluster. Newly created indices on the remote cluster that match any of the patterns are automatically configured as follower indices. Indices on the remote cluster that were created before the auto-follow pattern was created will not be auto-followed even if they match the pattern.
This API can also be used to update auto-follow patterns. NOTE: Follower indices that were configured automatically before updating an auto-follow pattern will remain unchanged even if they do not match against the new patterns.
Path parameters
-
name
string Required The name of the collection of auto-follow patterns.
Query parameters
-
master_timeout
string Period to wait for a connection to the master node.
Values are
-1or0.
Body
Required
-
remote_cluster
string Required The remote cluster containing the leader indices to match against.
-
follow_index_pattern
string -
leader_index_patterns
array[string] -
leader_index_exclusion_patterns
array[string] -
The maximum number of outstanding reads requests from the remote cluster.
-
settings
object Settings to override from the leader index. Note that certain settings can not be overrode (e.g., index.number_of_shards).
-
The maximum number of outstanding reads requests from the remote cluster.
-
read_poll_timeout
string A duration. Units can be
nanos,micros,ms(milliseconds),s(seconds),m(minutes),h(hours) andd(days). Also accepts "0" without a unit and "-1" to indicate an unspecified value. -
The maximum number of operations to pull per read from the remote cluster.
max_read_request_size
number | string -
max_retry_delay
string A duration. Units can be
nanos,micros,ms(milliseconds),s(seconds),m(minutes),h(hours) andd(days). Also accepts "0" without a unit and "-1" to indicate an unspecified value. -
max_write_buffer_count
number The maximum number of operations that can be queued for writing. When this limit is reached, reads from the remote cluster will be deferred until the number of queued operations goes below the limit.
max_write_buffer_size
number | string -
The maximum number of operations per bulk write request executed on the follower.
max_write_request_size
number | string
PUT /_ccr/auto_follow/my_auto_follow_pattern
{
"remote_cluster" : "remote_cluster",
"leader_index_patterns" :
[
"leader_index*"
],
"follow_index_pattern" : "{{leader_index}}-follower",
"settings": {
"index.number_of_replicas": 0
},
"max_read_request_operation_count" : 1024,
"max_outstanding_read_requests" : 16,
"max_read_request_size" : "1024k",
"max_write_request_operation_count" : 32768,
"max_write_request_size" : "16k",
"max_outstanding_write_requests" : 8,
"max_write_buffer_count" : 512,
"max_write_buffer_size" : "512k",
"max_retry_delay" : "10s",
"read_poll_timeout" : "30s"
}curl \
--request PUT 'http://api.example.com/_ccr/auto_follow/{name}' \
--header "Authorization: $API_KEY" \
--header "Content-Type: application/json" \
--data '"{\n \"remote_cluster\" : \"remote_cluster\",\n \"leader_index_patterns\" :\n [\n \"leader_index*\"\n ],\n \"follow_index_pattern\" : \"{{leader_index}}-follower\",\n \"settings\": {\n \"index.number_of_replicas\": 0\n },\n \"max_read_request_operation_count\" : 1024,\n \"max_outstanding_read_requests\" : 16,\n \"max_read_request_size\" : \"1024k\",\n \"max_write_request_operation_count\" : 32768,\n \"max_write_request_size\" : \"16k\",\n \"max_outstanding_write_requests\" : 8,\n \"max_write_buffer_count\" : 512,\n \"max_write_buffer_size\" : \"512k\",\n \"max_retry_delay\" : \"10s\",\n \"read_poll_timeout\" : \"30s\"\n}"'{
"remote_cluster" : "remote_cluster",
"leader_index_patterns" :
[
"leader_index*"
],
"follow_index_pattern" : "{{leader_index}}-follower",
"settings": {
"index.number_of_replicas": 0
},
"max_read_request_operation_count" : 1024,
"max_outstanding_read_requests" : 16,
"max_read_request_size" : "1024k",
"max_write_request_operation_count" : 32768,
"max_write_request_size" : "16k",
"max_outstanding_write_requests" : 8,
"max_write_buffer_count" : 512,
"max_write_buffer_size" : "512k",
"max_retry_delay" : "10s",
"read_poll_timeout" : "30s"
}{
"acknowledged": true
}