[iris] Compress checkpoints with zstd, prune old ones, improve restart UX#4143
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[iris] Compress checkpoints with zstd, prune old ones, improve restart UX#4143
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…t UX Checkpoint sqlite3 files are now compressed with zstandard (level 3) before upload. Downloads prefer .zst but fall back to uncompressed for backward compat. Old checkpoints (>3 days) are pruned best-effort after each write. The restart command gains --skip-checkpoint and --checkpoint-timeout (default 5 min) flags with progress feedback.
yonromai
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Approved.
I did not find a clear correctness regression in this change. The checkpoint format migration stays backward-compatible on restore, the pruning path is best-effort rather than on the critical path, and the focused checkpoint test file passed locally.
Residual risk is mostly around the new restart CLI flags being validated by static review rather than dedicated CLI tests in this PR.
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…t UX (#4143) Checkpoint sqlite3 files are now compressed with zstandard (level 3) before upload to remote storage. Downloads prefer .zst but fall back to uncompressed files for backward compatibility with checkpoints written before this change. Old checkpoints older than 3 days are pruned best-effort after each write. The controller restart command gains --skip-checkpoint and --checkpoint-timeout (default 5 minutes, was hardcoded 60s) flags, with progress feedback printed before the RPC call.
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Checkpoint sqlite3 files are now compressed with zstandard (level 3) before
upload to remote storage. Downloads prefer .zst but fall back to uncompressed
files for backward compatibility with checkpoints written before this change.
Old checkpoints older than 3 days are pruned best-effort after each write.
The controller restart command gains --skip-checkpoint and --checkpoint-timeout
(default 5 minutes, was hardcoded 60s) flags, with progress feedback printed
before the RPC call.