Sega76 commented on a change in pull request #8840:
URL: https://github.com/apache/ignite/pull/8840#discussion_r586022448



##########
File path: 
modules/control-utility/src/test/java/org/apache/ignite/util/PerformanceStatisticsCommandTest.java
##########
@@ -73,6 +80,16 @@ public void testCommands() throws Exception {
         assertEquals(EXIT_CODE_OK, res);
         assertEquals(STATUS_ENABLED, lastOperationResult);
 
+        res = execute(PERFORMANCE_STATISTICS.text(), ROTATE.toString());
+
+        assertEquals(EXIT_CODE_OK, res);

Review comment:
       fixed

##########
File path: 
modules/core/src/main/java/org/apache/ignite/internal/processors/performancestatistics/PerformanceStatisticsProcessor.java
##########
@@ -278,6 +297,30 @@ private void stopWriter() {
         log.info("Performance statistics writer stopped.");
     }
 
+    /** Rotate performance statistics writer. */
+    public void rotateWriter() {
+        try {
+            synchronized (mux) {
+                if (writer == null)
+                    return;
+
+                FilePerformanceStatisticsWriter newWriter = new 
FilePerformanceStatisticsWriter(ctx);
+
+                newWriter.start();
+
+                FilePerformanceStatisticsWriter oldWriter = writer;
+
+                writer = newWriter;
+
+                oldWriter.stop();
+            }

Review comment:
       done




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