What I did

Fix sonic-net/sonic-buildimage#8162

Moved sairedis record file rotation logic out of flush() to fix issue.

Why I did it
Sairedis record file was not releasing the file handle on rotation. This is because the file handle release was inside the flush() which was only being called if a select timeout was triggered. Moved the logic to its own function which is called in the start() loop.

How I verified it
Ran a script to fill log and verified that rotation was happening correctly.

Signed-off-by: Bryan Crossland bryan.crossland@target.com

orchagent/main.cpp

@@ -55,7 +55,6 @@ int gBatchSize = DEFAULT_BATCH_SIZE;
 bool gSairedisRecord = true;
 bool gSwssRecord = true;
 bool gLogRotate = false;
-bool gSaiRedisLogRotate = false;
 bool gSyncMode = false;
 sai_redis_communication_mode_t gRedisCommunicationMode = SAI_REDIS_COMMUNICATION_MODE_REDIS_ASYNC;
 string gAsicInstance;

orchagent/orchdaemon.cpp

@@ -43,6 +43,7 @@ BfdOrch *gBfdOrch;
 QosOrch *gQosOrch;
 
 bool gIsNatSupported = false;
+bool gSaiRedisLogRotate = false;
 
 #define DEFAULT_MAX_BULK_SIZE 1000
 size_t gMaxBulkSize = DEFAULT_MAX_BULK_SIZE;
@@ -529,24 +530,24 @@ void OrchDaemon::flush()
         SWSS_LOG_ERROR("Failed to flush redis pipeline %d", status);
         exit(EXIT_FAILURE);
     }
+}
 
-    // check if logroate is requested
-    if (gSaiRedisLogRotate)
-    {
-        SWSS_LOG_NOTICE("performing log rotate");
-
-        gSaiRedisLogRotate = false;
-
-        attr.id = SAI_REDIS_SWITCH_ATTR_PERFORM_LOG_ROTATE;
-        attr.value.booldata = true;
-
-        sai_switch_api->set_switch_attribute(gSwitchId, &attr);
+/* Release the file handle so the log can be rotated */
+void OrchDaemon::logRotate() {
+    SWSS_LOG_ENTER();
+    sai_attribute_t attr;
+    attr.id = SAI_REDIS_SWITCH_ATTR_PERFORM_LOG_ROTATE;
+    attr.value.booldata = true;
+    sai_status_t status = sai_switch_api->set_switch_attribute(gSwitchId, &attr);
+    if (status != SAI_STATUS_SUCCESS) {
+        SWSS_LOG_ERROR("Failed to release the file handle on sairedis log %d", status);
     }
 }
 
 void OrchDaemon::start()
 {
     SWSS_LOG_ENTER();
+    gSaiRedisLogRotate = false;
 
     for (Orch *o : m_orchList)
     {
@@ -590,6 +591,17 @@ void OrchDaemon::start()
             continue;
         }
 
+        // check if logroate is requested
+        if (gSaiRedisLogRotate)
+        {
+            SWSS_LOG_NOTICE("performing log rotate");
+
+            gSaiRedisLogRotate = false;
+
+            logRotate();
+            continue;
+        }
+
         auto *c = (Executor *)s;
         c->execute();
 

orchagent/orchdaemon.h

@@ -33,8 +33,10 @@
 #include "natorch.h"
 #include "muxorch.h"
 #include "bfdorch.h"
+#include <sairedis.h>
 
 using namespace swss;
+extern bool gSaiRedisLogRotate;
 
 class OrchDaemon
 {
@@ -49,6 +51,7 @@ class OrchDaemon
     bool warmRestoreValidation();
 
     bool warmRestartCheck();
+    void logRotate();
 private:
     DBConnector *m_applDb;
     DBConnector *m_configDb;