Lijun Wang 9c42a89a43 Issue #17008 -- make snapshot archives to hold on to configurable. (#17158) ... * purge_old_snapshot_archives is changed to take an extra argument 'maximum_snapshots_to_retain' to control the max number of latest snapshot archives to retain. Note the oldest snapshot is always retained as before and is not subjected to this new options. * The validator and ledger-tool executables are modified with a CLI argument --maximum-snapshots-to-retain. And the options are propagated down the call chains. Their corresponding shell scripts were changed accordingly. * SnapshotConfig is modified to have an extra field for the maximum_snapshots_to_retain * Unit tests are developed to cover purge_old_snapshot_archives		2021-05-12 10:32:27 -07:00
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lib.rs	Issue #17008 -- make snapshot archives to hold on to configurable. (#17158)	2021-05-12 10:32:27 -07:00