SERVER-16821 don't rotate logs more often then once per second

(cherry picked from commit 3cef6afea83b252613be458a0e0bf94ecea28f96)

1 files changed, 11 insertions, 0 deletions

diff --git a/src/mongo/util/signal_handlers.cpp b/src/mongo/util/signal_handlers.cpp
index ce01fede77f..27571b0f775 100644
--- a/src/mongo/util/signal_handlers.cpp
+++ b/src/mongo/util/signal_handlers.cpp
@@ -33,6 +33,7 @@
 #include "mongo/util/signal_handlers.h"
 
 #include <signal.h>
+#include <time.h>
 
 #if !defined(_WIN32)
 #include <unistd.h>
@@ -163,6 +164,9 @@ sigset_t asyncSignals;
 void signalProcessingThread() {
     setThreadName("signalProcessingThread");
 
+    time_t signalTimeSeconds = -1;
+    time_t lastSignalTimeSeconds = -1;
+
     while (true) {
         int actualSignal = 0;
         int status = sigwait(&asyncSignals, &actualSignal);
@@ -170,6 +174,13 @@ void signalProcessingThread() {
         switch (actualSignal) {
             case SIGUSR1:
                 // log rotate signal
+                signalTimeSeconds = time(0);
+                if (signalTimeSeconds <= lastSignalTimeSeconds) {
+                    // ignore multiple signals in the same or earlier second.
+                    break;
+                }
+
+                lastSignalTimeSeconds = signalTimeSeconds;
                 fassert(16782, rotateLogs(serverGlobalParams.logRenameOnRotate));
                 logProcessDetailsForLogRotate();
                 break;