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added more documentation

This commit is contained in:
Jon Fu 2021-01-04 16:59:08 -05:00
parent a0d33c5d03
commit 278e7de6f5
1 changed files with 8 additions and 0 deletions
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8
fdbclient/SystemData.h
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@ -446,8 +446,16 @@ std::pair<Key,Version> decodeHealthyZoneValue( ValueRef const& );
extern const KeyRangeRef testOnlyTxnStateStorePrefixRange;
// Snapshot + Incremental Restore
// "\xff/writeRecovery" = "[[writeRecoveryKeyTrue]]"
// Flag used for the snapshot-restore pipeline in order to avoid
// anomalous behaviour with multiple recoveries.
extern const KeyRef writeRecoveryKey;
extern const ValueRef writeRecoveryKeyTrue;
// "\xff/snapshotEndVersion" = "[[Version]]"
// Written by master server during recovery if recovering from a snapshot.
// Allows incremental restore to read and set starting version for consistency.
extern const KeyRef snapshotEndVersionKey;
#pragma clang diagnostic pop