Do not purge all bank snapshots after fastboot #345
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Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## master #345 +/- ##
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- Coverage 81.8% 81.8% -0.1%
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Files 842 842
Lines 228492 228491 -1
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- Hits 187104 187053 -51
- Misses 41388 41438 +50 |
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brooksprumo
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| // If the node crashes before taking the next bank snapshot, the next startup will attempt | ||
| // to load from the same bank snapshot again. And if `shrink` has run, the account storage | ||
| // files that are hard linked in bank snapshot will be *different* than what the bank | ||
| // snapshot expects. This would cause the node to crash again. To prevent that, purge all | ||
| // the bank snapshots here. In the above scenario, this will cause the node to load from a | ||
| // snapshot archive next time, which is safe. | ||
| snapshot_utils::purge_all_bank_snapshots(&snapshot_config.bank_snapshots_dir); |
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Now that #120 was merged, there are no more issues related to shrink. So this original concern has been mitigated.
Where was a second issue that purging all the bank snapshots here also fixed: solana-labs#35367. It has been fixed by #343, so now there are no more blockers to removing this code.
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Problem
Please see solana-labs#35431
Summary of Changes
Do not purge all bank snapshots after fastbooting.
Fixes solana-labs#35431
Additional Testing
I ran leger-tool built from this PR on a mnb bank snapshot and confirmed I was able to repeatably use fastboot. Yay!
What's also really cool, is now that the storages recycler has been removed, we can fastboot from older bank snapshots as well; not just the latest.