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Posted to issues@brpc.apache.org by "W-Xu (via GitHub)" <gi...@apache.org> on 2026/01/29 14:26:04 UTC
[I] 客户端服务端proto不一致的情况下，ParsePbFromIOBuf 会稳定小概率反序列化解析失败 (brpc)
W-Xu opened a new issue, #3207:
URL: https://github.com/apache/brpc/issues/3207
**Describe the bug**
在客户端的 proto 文件添加新字段之后，服务端未更新的情况下（proto文件见附录），高 qps 的情况下 ParsePbFromIOBuf 会稳定小概率反序列化解析失败。报错路径为：
http_rpc_protocol.cpp文件
if (content_type == HTTP_CONTENT_PROTO) {
if (!ParsePbFromIOBuf(req, req_body)) {
cntl->SetFailed(EREQUEST, "Fail to parse http body as %s",
request_full_name.c_str());
return;
}
……
protocol.cpp文件
bool ParsePbFromIOBuf(google::protobuf::Message* msg, const butil::IOBuf& buf) {
butil::IOBufAsZeroCopyInputStream stream(buf);
return ParsePbFromZeroCopyStreamInlined(msg, &stream);
}
如果把 [IOBufAsZeroCopyInputStream](butil::IOBufAsZeroCopyInputStream stream(buf);) 修改为
std::string flat;
buf.copy_to(&flat);
// 用 ArrayInputStream代替
google::protobuf::io::ArrayInputStream ais(flat.data(), flat.size());
问题就会修复。
1、辛苦确认一下，这个地方是否有问题？或者有更好的使用建议吗？
2、如果有问题，这个地方用的 IOBufAsZeroCopyInputStream 看起来是问题所在，是否有更好修改建议？
附录：
proto文件
message BatchRequest {
string aaa = 1;
repeated int32 bbb = 2;
string ccc = 3;
repeated Request requests = 4;
int32 ddd = 5;
repeated uint64 eee = 6;
int32 fff = 7;
// Optional. name
// 客户端添加这个字段，服务端不添加这个字段有问题
string name = 8;
}
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Re: [I] 客户端服务端proto不一致的情况下，ParsePbFromIOBuf 会稳定小概率反序列化解析失败 (brpc)
Posted by "chenBright (via GitHub)" <gi...@apache.org>.
chenBright closed issue #3207: 客户端服务端proto不一致的情况下，ParsePbFromIOBuf 会稳定小概率反序列化解析失败
URL: https://github.com/apache/brpc/issues/3207
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Re: [I] 客户端服务端proto不一致的情况下，ParsePbFromIOBuf 会稳定小概率反序列化解析失败 (brpc)
Posted by "chenBright (via GitHub)" <gi...@apache.org>.
chenBright commented on issue #3207:
URL: https://github.com/apache/brpc/issues/3207#issuecomment-4067424164
@W-Xu Please try using #3242 to fix this issue.
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