Merge branch 'ac-pr-final-1' of github.com:bharath-techie/OpenSearch into ac-pr-fs-stats-1

Author: bharath-techie

server/src/main/java/org/opensearch/monitor/fs/FsHealthService.java

@@ -96,7 +96,7 @@ public class FsHealthService extends AbstractLifecycleComponent implements NodeH
     );
     public static final Setting<TimeValue> REFRESH_INTERVAL_SETTING = Setting.timeSetting(
         "monitor.fs.health.refresh_interval",
-        TimeValue.timeValueSeconds(60),
+        TimeValue.timeValueSeconds(1),
         TimeValue.timeValueMillis(1),
         Setting.Property.NodeScope
     );
@@ -228,6 +228,7 @@ private void monitorFSHealth() {
                         }
                         Files.delete(tempDataPath);
                         final long elapsedTime = currentTimeMillisSupplier.getAsLong() - executionStartTime;
+                        logger.info("health check took {}", elapsedTime);
                         if (elapsedTime > slowPathLoggingThreshold.millis()) {
                             logger.warn(
                                 "health check of [{}] took [{}ms] which is above the warn threshold of [{}]",

server/src/main/java/org/opensearch/throttling/tracker/AverageIOUsageTracker.java

@@ -145,6 +145,7 @@ private void recordUsage(IoUsageFetcher.DiskStats usage) {
     protected void doStart() {
         scheduledFuture = threadPool.scheduleWithFixedDelay(() -> {
             IoUsageFetcher.DiskStats usage = getUsage();
+            if(usage == null) return;
             recordUsage(usage);
         }, pollingInterval, ThreadPool.Names.GENERIC);
     }

server/src/main/java/org/opensearch/throttling/tracker/IoUsageFetcher.java

@@ -81,9 +81,12 @@ public DiskStats getDiskUtilizationStats() {
         double writeLatency = 0.0;
         double readOps = 0.0;
         double writeOps = 0.0;
+        if(this.fsService.stats().getIoStats() == null) {
+            return null;
+        }
         for (FsInfo.DeviceStats devicesStat : this.fsService.stats().getIoStats().getDevicesStats()) {
             if (previousIOTimeMap != null && previousIOTimeMap.containsKey(devicesStat.getDeviceName())){
-                logger.info(this.fsService.stats().getTimestamp());
+                //logger.info(this.fsService.stats().getTimestamp());
                 long ioSpentTime = devicesStat.getCurrentIOTime() - previousIOTimeMap.get(devicesStat.getDeviceName()).ioTime;
                 ioUsePercent = (ioSpentTime * 100) / (1000);
                 readOps += devicesStat.currentReadOperations() - previousIOTimeMap.get(devicesStat.getDeviceName()).readOps;
@@ -104,11 +107,11 @@ public DiskStats getDiskUtilizationStats() {
                 devicesStat.getCurrentReadKilobytes(), devicesStat.getCurrentWriteKilobytes());
             currentIOTimeMap.put(devicesStat.getDeviceName(), ps);
         }
-        logger.info("Read in MB : {} , Write in MB : {}", readkb/1000, writekb/1000);
+    //    logger.info("Read in MB : {} , Write in MB : {}", readkb/1000, writekb/1000);
 //        readLatency += (readOps / readTime) * 100;
 //        writeLatency += (writeOps / writeTime) * 100;
-        logger.info("read ops : {} , writeops : {} , readtime: {} , writetime: {}", readOps, writeOps, readTime, writeTime);
-        logger.info("Read latency : {}  write latency : {}" , readLatency, writeLatency);
+//        logger.info("read ops : {} , writeops : {} , readtime: {} , writetime: {}", readOps, writeOps, readTime, writeTime);
+//        logger.info("Read latency : {}  write latency : {}" , readLatency, writeLatency);
         logger.info("IO use percent : {}", ioUsePercent);
         previousIOTimeMap = currentIOTimeMap;
 

server/src/main/java/org/opensearch/throttling/tracker/PerformanceTrackerSettings.java

@@ -23,7 +23,7 @@ private static class Defaults {
         private static final long WINDOW_DURATION = 30;
         private static final long REFRESH_INTERVAL = 1000;
 
-        private static final long IO_POLLING_INTERVAL = 60000;
+        private static final long IO_POLLING_INTERVAL = 1000;
         private static final long IO_WINDOW_DURATION = 60;
     }