A newer version is available. For the latest information, see the current release documentation.
These cross-cluster replication settings can be dynamically updated on a live cluster with the cluster update settings API.
Remote recovery settingsedit
The following setting can be used to rate-limit the data transmitted during remote recoveries:
Limits the total inbound and outbound remote recovery traffic on each node.
Since this limit applies on each node, but there may be many nodes performing
remote recoveries concurrently, the total amount of remote recovery bytes may be
much higher than this limit. If you set this limit too high then there is a risk
that ongoing remote recoveries will consume an excess of bandwidth (or other
resources) which could destabilize the cluster. This setting is used by both the
leader and follower clusters. For example if it is set to
20mbon a leader, the leader will only send
20mb/sto the follower even if the follower is requesting and can accept
60mb/s. Defaults to
Advanced remote recovery settingsedit
The following expert settings can be set to manage the resources consumed by remote recoveries:
Controls the number of file chunk requests that can be sent in parallel per
recovery. As multiple remote recoveries might already running in parallel,
increasing this expert-level setting might only help in situations where remote
recovery of a single shard is not reaching the total inbound and outbound remote recovery traffic as configured by
ccr.indices.recovery.max_bytes_per_sec. Defaults to
5. The maximum allowed value is
Controls the chunk size requested by the follower during file transfer. Defaults to
- Controls the timeout for recovery activity. This timeout primarily applies on the leader cluster. The leader cluster must open resources in-memory to supply data to the follower during the recovery process. If the leader does not receive recovery requests from the follower for this period of time, it will close the resources. Defaults to 60 seconds.
- Controls the timeout for individual network requests during the remote recovery process. An individual action timing out can fail the recovery. Defaults to 60 seconds.
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