diagnoostics: return empty response if search path dose not exist (#7541

)

Signed-off-by: Fullstop000 <[email protected]>

src/server/service/diagnostics.rs

@@ -827,6 +827,7 @@ mod log {
  const INVALID_TIMESTAMP: i64 = -1;
  const TIMESTAMP_LENGTH: usize = 30;
 
+ #[derive(Default)]
  struct LogIterator {
  search_files: Vec<(i64, File)>,
  currrent_lines: Option<std::io::Lines<BufReader<File>>>,
@@ -1109,6 +1110,9 @@ mod log {
  log_file: P,
  mut req: SearchLogRequest,
  ) -> Result<impl Stream<Item = SearchLogResponse, Error = ()>, Error> {
+ if !log_file.as_ref().exists() {
+ return Ok(bacth_log_item(LogIterator::default()));
+ }
  let begin_time = req.get_start_time();
  let end_time = req.get_end_time();
  let levels = req.take_levels();