* 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
* Move bank drop to AccountsBackgroundService
* Send to ABS on drop instead, protects against other places banks are dropped
* Fix Abi
* test
Co-authored-by: Carl Lin <carl@solana.com>
* Test for different ancestors with mismatch bank hash
* Test cleanup
* Remove nondeterministic ancestor check
* Update timestamp bounding feature key
* Update design doc
* Filter recent_timestamps to nodes voting within the last epoch
Co-authored-by: Stephen Akridge <sakridge@gmail.com>
Lijun Wang
carllin
Michael Vines
Tyera Eulberg
behzad nouri
carllin
sakridge
Greg Fitzgerald
Kristofer Peterson