/*
- * ============LICENSE_START=======================================================
- * Copyright (C) 2022 Nordix Foundation
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2022-2023 Nordix Foundation
+ * Modifications Copyright (C) 2022 Bell Canada
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
package org.onap.cps.ncmp.api.inventory.sync;
+import com.hazelcast.map.IMap;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.List;
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
+import lombok.Getter;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
+import org.onap.cps.ncmp.api.impl.config.embeddedcache.SynchronizationCacheConfig;
import org.onap.cps.ncmp.api.impl.yangmodels.YangModelCmHandle;
-import org.springframework.scheduling.annotation.EnableScheduling;
+import org.onap.cps.ncmp.api.inventory.sync.executor.AsyncTaskExecutor;
+import org.onap.cps.spi.model.DataNode;
import org.springframework.scheduling.annotation.Scheduled;
-import org.springframework.stereotype.Component;
+import org.springframework.stereotype.Service;
@Slf4j
-@EnableScheduling
@RequiredArgsConstructor
-@Component
+@Service
public class ModuleSyncWatchdog {
private final SyncUtils syncUtils;
+ private final BlockingQueue<DataNode> moduleSyncWorkQueue;
+ private final IMap<String, Object> moduleSyncStartedOnCmHandles;
+ private final ModuleSyncTasks moduleSyncTasks;
+ private final AsyncTaskExecutor asyncTaskExecutor;
+ private static final int MODULE_SYNC_BATCH_SIZE = 100;
+ private static final long PREVENT_CPU_BURN_WAIT_TIME_MILLIS = 10;
+ private static final String VALUE_FOR_HAZELCAST_IN_PROGRESS_MAP = "Started";
+ private static final long ASYNC_TASK_TIMEOUT_IN_MILLISECONDS = TimeUnit.MINUTES.toMillis(5);
+ @Getter
+ private AtomicInteger batchCounter = new AtomicInteger(1);
/**
- * Execute Cm Handle poll which changes the cm handle state from 'ADVISED' to 'READY'.
+ * Check DB for any cm handles in 'ADVISED' state.
+ * Queue and create batches to process them asynchronously.
+ * This method will only finish when there are no more 'ADVISED' cm handles in the DB.
+ * This method wil be triggered on a configurable interval
*/
- @Scheduled(fixedDelayString = "${ncmp.timers.advised-modules-sync.sleep-time-ms}")
- public void executeAdvisedCmHandlePoll() {
- YangModelCmHandle newAdvisedCmHandle = syncUtils.getAnAdvisedCmHandle();
- while (newAdvisedCmHandle != null) {
- // ToDo When Cm-Handle in the 'ADVISED' state is Retrieved, Set CM-Handle state to 'LOCKED'
- // and give lock reason
- // ToDo if lock fails, move to next cm handle.
- // ToDo Update last update time with a timestamp everytime Cm-handle state is changed
- syncUtils.updateCmHandleState(newAdvisedCmHandle, "READY");
- log.info("{} is now in READY state", newAdvisedCmHandle.getId());
- newAdvisedCmHandle = syncUtils.getAnAdvisedCmHandle();
+ @Scheduled(fixedDelayString = "${ncmp.timers.advised-modules-sync.sleep-time-ms:5000}")
+ public void moduleSyncAdvisedCmHandles() {
+ log.info("Processing module sync watchdog waking up.");
+ populateWorkQueueIfNeeded();
+ final int asyncTaskParallelismLevel = asyncTaskExecutor.getAsyncTaskParallelismLevel();
+ while (!moduleSyncWorkQueue.isEmpty()) {
+ if (batchCounter.get() <= asyncTaskParallelismLevel) {
+ final Collection<DataNode> nextBatch = prepareNextBatch();
+ log.debug("Processing module sync batch of {}. {} batch(es) active.",
+ nextBatch.size(), batchCounter.get());
+ asyncTaskExecutor.executeTask(() ->
+ moduleSyncTasks.performModuleSync(nextBatch, batchCounter),
+ ASYNC_TASK_TIMEOUT_IN_MILLISECONDS);
+ batchCounter.getAndIncrement();
+ } else {
+ preventBusyWait();
+ }
}
- log.debug("No Cm-Handles currently found in an ADVISED state");
+ }
+
+ /**
+ * Find any failed (locked) cm handles and change state back to 'ADVISED'.
+ */
+ @Scheduled(fixedDelayString = "${ncmp.timers.locked-modules-sync.sleep-time-ms:300000}")
+ public void resetPreviouslyFailedCmHandles() {
+ log.info("Processing module sync retry-watchdog waking up.");
+ final List<YangModelCmHandle> failedCmHandles = syncUtils.getModuleSyncFailedCmHandles();
+ log.info("Retrying {} cmHandles", failedCmHandles.size());
+ moduleSyncTasks.resetFailedCmHandles(failedCmHandles);
+ }
+
+ private void preventBusyWait() {
+ try {
+ log.info("Busy waiting now");
+ TimeUnit.MILLISECONDS.sleep(PREVENT_CPU_BURN_WAIT_TIME_MILLIS);
+ } catch (final InterruptedException e) {
+ Thread.currentThread().interrupt();
+ }
+ }
+
+ private void populateWorkQueueIfNeeded() {
+ if (moduleSyncWorkQueue.isEmpty()) {
+ final List<DataNode> advisedCmHandles = syncUtils.getAdvisedCmHandles();
+ log.info("Processing module sync fetched {} advised cm handles from DB", advisedCmHandles.size());
+ for (final DataNode advisedCmHandle : advisedCmHandles) {
+ if (!moduleSyncWorkQueue.offer(advisedCmHandle)) {
+ log.warn("Unable to add cm handle {} to the work queue", advisedCmHandle.getLeaves().get("id"));
+ }
+ }
+ log.info("Work Queue Size : {}", moduleSyncWorkQueue.size());
+ }
+ }
+
+ private Collection<DataNode> prepareNextBatch() {
+ final Collection<DataNode> nextBatchCandidates = new HashSet<>(MODULE_SYNC_BATCH_SIZE);
+ final Collection<DataNode> nextBatch = new HashSet<>(MODULE_SYNC_BATCH_SIZE);
+ moduleSyncWorkQueue.drainTo(nextBatchCandidates, MODULE_SYNC_BATCH_SIZE);
+ log.debug("nextBatchCandidates size : {}", nextBatchCandidates.size());
+ for (final DataNode batchCandidate : nextBatchCandidates) {
+ final String cmHandleId = String.valueOf(batchCandidate.getLeaves().get("id"));
+ final boolean alreadyAddedToInProgressMap = VALUE_FOR_HAZELCAST_IN_PROGRESS_MAP.equals(
+ moduleSyncStartedOnCmHandles.putIfAbsent(cmHandleId, VALUE_FOR_HAZELCAST_IN_PROGRESS_MAP,
+ SynchronizationCacheConfig.MODULE_SYNC_STARTED_TTL_SECS, TimeUnit.SECONDS));
+ if (alreadyAddedToInProgressMap) {
+ log.debug("module sync for {} already in progress by other instance", cmHandleId);
+ } else {
+ nextBatch.add(batchCandidate);
+ }
+ }
+ log.debug("nextBatch size : {}", nextBatch.size());
+ return nextBatch;
}
}
Code Review / cps.git / blobdiff