YARN-8515. container-executor can crash with SIGPIPE after nodemanager restart. Contributed by Jim Brennan

(cherry picked from commit 17118f446c)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/main.c

@@ -30,6 +30,7 @@
 #include <unistd.h>
 #include <stdlib.h>
 #include <string.h>
+#include <signal.h>
 
 static void display_usage(FILE *stream) {
   fprintf(stream,
@@ -106,6 +107,11 @@ static void open_log_files() {
   if (ERRORFILE == NULL) {
     ERRORFILE = stderr;
   }
+
+  // There may be a process reading from stdout/stderr, and if it
+  // exits, we will crash on a SIGPIPE when we try to write to them.
+  // By ignoring SIGPIPE, we can handle the EPIPE instead of crashing.
+  signal(SIGPIPE, SIG_IGN);
 }
 
 /* Flushes and closes log files */