On Thu, Aug 23, 2018 at 7:47 AM Sergey Kanzhelev ***@***.***> wrote: @SergeyKanzhelev commented on this pull request. ________________________________ In opencensus/proto/trace/trace.proto: > + // The `tracestate` field conveys information about request position in multiple distributed + // tracing graphs. + // + // There can be a maximum of 32 members in the map. + // + // The key must begin with a lowercase letter, and can only contain lowercase letters 'a'-'z', + // digits '0'-'9', underscores '_', dashes '-', asterisks '*', and forward slashes '/'. For + // multi-tenant vendors scenarios '@' sign can be used to prefix vendor name. The maximum length + // for the key is 256 characters. + // + // The value is opaque string up to 256 characters printable ASCII RFC0020 characters (i.e., the + // range 0x20 to 0x7E) except ',' and '='. Note that this also excludes tabs, newlines, carriage + // returns, etc. + // + // See the https://github.com/w3c/distributed-tracing for more details about this field. + map<string, string> tracestate = 15; Is map ordered in proto? Not that important for storing as for propagation, but nevertheless for consistency it may be better to have a list — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or mute the thread.