public boolean areDeadServersInProgress() throws IOException {
    return master.getProcedures().stream()
      .anyMatch(p -> !p.isFinished() && p instanceof ServerCrashProcedure);
  }
Checks if any dead servers are currently in progress.
@return true if any RS are being processed as dead, false if not
hbase-server/src/main/java/org/apache/hadoop/hbase/master/ServerManager.java