rpuch commented on code in PR #4528:
URL: https://github.com/apache/ignite-3/pull/4528#discussion_r1793542400
##########
modules/metastorage/src/testFixtures/java/org/apache/ignite/internal/metastorage/server/SimpleInMemoryKeyValueStorage.java:
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@@ -970,6 +970,11 @@ public long getCompactionRevision() {
}
}
+ @Override
+ public @Nullable Long checksum(long revision) {
+ throw new UnsupportedOperationException();
Review Comment:
Checksums are not needed for normal functioning of the Metastorage, they
will only be used before starting it, when performing a special procedure to
re-enter a node that did not see the Metastorage repair. This will be tested in
integration tests, so only using the RocksDB-based storage. Hence we simply
don't need checksums in the in-mem storage. That's why it makes no sense to
implement checksums there.
If something changes in the future, we'll add this to this storage as well
(but I doubt it will change).
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