storage: improve comment on CollectChecksumResponse

Checksum can be nil. Release note: None
tbg · May 30, 2019 · 0519373 · 0519373
1 parent f49f211
commit 0519373
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Showing 2 changed files with 13 additions and 9 deletions.
diff --git a/pkg/storage/api.pb.go b/pkg/storage/api.pb.go
diff --git a/pkg/storage/api.proto b/pkg/storage/api.proto
@@ -44,6 +44,8 @@ message CollectChecksumRequest {
 }
 
 message CollectChecksumResponse {
+  // The checksum is the sha512 hash of the requested computation. It is empty
+  // if the computation failed.
   bytes checksum = 1;
   // snapshot is set if the roachpb.ComputeChecksumRequest had snapshot = true
   // and the response checksum is different from the request checksum.