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2b4fe8fc7b
Today we limit the max number of concurrent snapshot file restores per recovery. This works well when the default node_concurrent_recoveries is used (which is 2). When this limit is increased, it is possible to exhaust the underlying repository connection pool, affecting other workloads. This commit adds a new setting `indices.recovery.max_concurrent_snapshot_file_downloads_per_node` that allows to limit the max number of snapshot file downloads per node during recoveries. When a recovery starts in the target node it tries to acquire a permit that allows it to download snapshot files when it is granted. This is communicated to the source node in the StartRecoveryRequest. This is a rather conservative approach since it is possible that a recovery that gets a permit to use snapshot files doesn't recover any snapshot file while there's a concurrent recovery that doesn't get a permit could take advantage of recovering from a snapshot. Closes #79044 |
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| .. | ||
| cluster | ||
| discovery | ||
| indices | ||
| network | ||
| cluster.asciidoc | ||
| discovery.asciidoc | ||
| gateway.asciidoc | ||
| http.asciidoc | ||
| network.asciidoc | ||
| node.asciidoc | ||
| plugins.asciidoc | ||
| remote-clusters-shared.asciidoc | ||
| remote-clusters.asciidoc | ||
| threadpool.asciidoc | ||
| transport.asciidoc | ||