Add reroute command for shard allocation #5
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- Add new 'reroute' command to support manual shard allocation - Support for allocating replica shards (safe operation) - Support for allocating empty primary shards with data loss confirmation - Interactive confirmation dialog for dangerous primary shard operations - Additional options: --explain and --retry-failed - Proper ATD type definitions for reroute operations - JSON serialization and HTTP request handling - Comprehensive help documentation with examples - Updated README.md with anonymized usage examples Usage: es reroute <cluster> -r <index>:<shard>:<node> # allocate replica es reroute <cluster> -p <index>:<shard>:<node> # allocate empty primary The command follows the same patterns as existing elasticsearch-cli commands and integrates seamlessly with the existing codebase.
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ahrrv
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Aug 12, 2025
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| `P "Use -r to allocate replica shards (safe operation)."; | ||
| `P "Use -p to allocate empty primary shards (WARNING: causes data loss!)."; |
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I think these should not be needed as it just repeats the args' documentation.
ahrrv
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Aug 12, 2025
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| let parse_allocation spec = | ||
| match String.split_on_char ':' spec with | ||
| | [index; shard_str; node] -> |
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for this kind of options, need to create a converter using Arg.conv (I think there are also a few ready-made converters under Arg.Conv).
ahrrv
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Aug 12, 2025
| | _ -> None | ||
| in | ||
| let replica_actions = | ||
| List.filter_map (fun spec -> |
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filter_map and the only valid return is Some ...
LLM is drunk
ahrrv
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Aug 12, 2025
| move = None; cancel = None; } in | ||
| Lwt.return (Some cmd) | ||
| else | ||
| let%lwt () = Lwt_io.eprintl "Operation cancelled." in |
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I think this should fail the whole operation. That is, all-or-nothing semantics.
ahrrv
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Aug 12, 2025
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| ?move : move_shard option; | ||
| ?cancel : cancel_shard option; |
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These are in ATD but not available as commands.
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Usage:
es reroute -r :: # allocate replica es reroute -p :: # allocate empty primary
The command follows the same patterns as existing elasticsearch-cli commands and integrates seamlessly with the existing codebase.