StartTs cannot be zero while committing a transaction (v20.07.0)

Issues Dgraph
,
5

You need to add setCommitNow(true) while building the mutation object and then just do txn.mutate(mutation) and not txn.commit().

Mutation mutation =
          Mutation.newBuilder().setSetJson(ByteString.copyFromUtf8(json.toString())).setCommitNow(true).build();
      txn.mutate(mutation);
// remove below line
//      txn.commit();

That will make it work for now.

This seems like a bug in Dgraph’s ludicrous_mode when commitNow is not given, it fails.
Marking it as a bug.

Thanks for reporting.