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etcdserver: fix nil pointer panic for readonly txn

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Backporting https://github.com/etcd-io/etcd/pull/14895

Signed-off-by: Benjamin Wang <wachao@vmware.com>
This commit is contained in:
Benjamin Wang
2022-12-06 18:04:29 +08:00
parent 0b47579263
commit c1a89973f0
2 changed files with 109 additions and 1 deletions
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6
server/etcdserver/util.go
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@ -140,7 +140,11 @@ func warnOfExpensiveReadOnlyTxnRequest(lg *zap.Logger, warningApplyDuration time
for _, r := range txnResponse.Responses {
switch op := r.Response.(type) {
case *pb.ResponseOp_ResponseRange:
resps = append(resps, fmt.Sprintf("range_response_count:%d", len(op.ResponseRange.Kvs)))
if op.ResponseRange != nil {
resps = append(resps, fmt.Sprintf("range_response_count:%d", len(op.ResponseRange.Kvs)))
} else {
resps = append(resps, "range_response:nil")
}
default:
// only range responses should be in a read only txn request
}