content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package org.apache.celeborn.service.deploy.master.clustermeta;
  
  import java.io.BufferedInputStream;
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.IOException;
  import java.nio.file.Files;
  import java.util.*;
  import java.util.concurrent.ConcurrentHashMap;
  import java.util.concurrent.atomic.AtomicLong;
  import java.util.concurrent.atomic.LongAdder;
  import java.util.stream.Collectors;
  
  import scala.Option;
  import scala.Tuple2;
  
  import com.google.common.annotations.VisibleForTesting;
  import org.apache.commons.lang3.tuple.ImmutablePair;
  import org.apache.commons.lang3.tuple.Pair;
  import org.apache.hadoop.net.NetworkTopology;
  import org.apache.hadoop.net.Node;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import org.apache.celeborn.common.CelebornConf;
  import org.apache.celeborn.common.identity.UserIdentifier;
  import org.apache.celeborn.common.meta.ApplicationInfo;
  import org.apache.celeborn.common.meta.ApplicationMeta;
  import org.apache.celeborn.common.meta.DiskInfo;
  import org.apache.celeborn.common.meta.DiskStatus;
  import org.apache.celeborn.common.meta.WorkerEventInfo;
  import org.apache.celeborn.common.meta.WorkerInfo;
  import org.apache.celeborn.common.meta.WorkerStatus;
  import org.apache.celeborn.common.network.CelebornRackResolver;
  import org.apache.celeborn.common.protocol.PbSnapshotMetaInfo;
  import org.apache.celeborn.common.protocol.PbWorkerStatus;
  import org.apache.celeborn.common.quota.ResourceConsumption;
  import org.apache.celeborn.common.rpc.RpcEnv;
  import org.apache.celeborn.common.util.JavaUtils;
  import org.apache.celeborn.common.util.PbSerDeUtils;
  import org.apache.celeborn.common.util.Utils;
  import org.apache.celeborn.common.util.WorkerStatusUtils;
  
  /**
   * Note: Do not update the worker collections directly from outside the metadata manager, especially
   * {@link #workersMap}, {@link #workerEventInfos}, {@link #shutdownWorkers}, {@link
   * #excludedWorkers}, {@link #manuallyExcludedWorkers}, {@link #availableWorkers}.
   *
   * <p>All updates should be done through the provided methods to ensure consistency.
   */
  public abstract class AbstractMetaManager implements IMetadataHandler {
    private static final Logger LOG = LoggerFactory.getLogger(AbstractMetaManager.class);
  
    // Metadata for master service
    public final Map<String, Set<Integer>> registeredAppAndShuffles =
        JavaUtils.newConcurrentHashMap();
    public final Set<String> hostnameSet = ConcurrentHashMap.newKeySet();
    public final Map<String, WorkerInfo> workersMap = JavaUtils.newConcurrentHashMap();
    public final Set<WorkerInfo> availableWorkers = ConcurrentHashMap.newKeySet();
  
    public final ConcurrentHashMap<WorkerInfo, Long> lostWorkers = JavaUtils.newConcurrentHashMap();
    public final ConcurrentHashMap<WorkerInfo, WorkerEventInfo> workerEventInfos =
        JavaUtils.newConcurrentHashMap();
    public final ConcurrentHashMap<String, Long> appHeartbeatTime = JavaUtils.newConcurrentHashMap();
    public final Set<WorkerInfo> excludedWorkers = ConcurrentHashMap.newKeySet();
    public final Set<WorkerInfo> manuallyExcludedWorkers = ConcurrentHashMap.newKeySet();
    public final Set<WorkerInfo> shutdownWorkers = ConcurrentHashMap.newKeySet();
    public final Set<WorkerInfo> decommissionWorkers = ConcurrentHashMap.newKeySet();
    public final Set<WorkerInfo> workerLostEvents = ConcurrentHashMap.newKeySet();
  
    protected RpcEnv rpcEnv;
    protected CelebornConf conf;
    protected CelebornRackResolver rackResolver;
  
    public long initialEstimatedPartitionSize;
    public long estimatedPartitionSize;
    public double unhealthyDiskRatioThreshold;
    protected boolean autoReleaseHighWorkLoadEnabled;
    protected double autoReleaseHighWorkLoadRatioThreshold;
    protected boolean hasRemoteStorage;
    public final LongAdder partitionTotalWritten = new LongAdder();
    public final LongAdder partitionTotalFileCount = new LongAdder();
    public final LongAdder shuffleTotalCount = new LongAdder();
    public final LongAdder applicationTotalCount = new LongAdder();
    public final Map<String, Long> shuffleFallbackCounts = JavaUtils.newConcurrentHashMap();
    public final Map<String, Long> applicationFallbackCounts = JavaUtils.newConcurrentHashMap();
  
    public final ConcurrentHashMap<String, ApplicationInfo> applicationInfos =
        JavaUtils.newConcurrentHashMap();
    public final ConcurrentHashMap<String, ApplicationMeta> applicationMetas =
        JavaUtils.newConcurrentHashMap();
  
    public void updateApplicationInfo(
        String appId, UserIdentifier userIdentifier, Map<String, String> extraInfo) {
      applicationInfos.putIfAbsent(
          appId, new ApplicationInfo(appId, userIdentifier, extraInfo, System.currentTimeMillis()));
    }
  
    public void updateRequestSlotsMeta(
        String shuffleKey, String hostName, Map<String, Map<String, Integer>> workerWithAllocations) {
      Tuple2<String, Object> appIdShuffleId = Utils.splitShuffleKey(shuffleKey);
      registeredAppAndShuffles
          .computeIfAbsent(appIdShuffleId._1(), v -> new HashSet<>())
          .add((Integer) appIdShuffleId._2);
  
      String appId = appIdShuffleId._1;
      appHeartbeatTime.compute(
          appId,
          (applicationId, oldTimestamp) -> {
            long oldTime = System.currentTimeMillis();
            if (oldTimestamp != null) {
              oldTime = oldTimestamp;
            }
            return Math.max(System.currentTimeMillis(), oldTime);
          });
  
      if (hostName != null) {
        hostnameSet.add(hostName);
      }
    }
  
    public void updateUnregisterShuffleMeta(String shuffleKey) {
      Tuple2<String, Object> appIdShuffleId = Utils.splitShuffleKey(shuffleKey);
      Set<Integer> shuffleIds = registeredAppAndShuffles.get(appIdShuffleId._1());
      if (shuffleIds != null) {
        shuffleIds.remove(appIdShuffleId._2);
        registeredAppAndShuffles.compute(
            appIdShuffleId._1(),
            (s, shuffles) -> {
              if (shuffles.size() == 0) {
                return null;
              }
              return shuffles;
            });
      }
    }
  
    public void updateBatchUnregisterShuffleMeta(List<String> shuffleKeys) {
      for (String shuffleKey : shuffleKeys) {
        Tuple2<String, Object> appIdShuffleId = Utils.splitShuffleKey(shuffleKey);
        String appId = appIdShuffleId._1;
        if (registeredAppAndShuffles.containsKey(appId)) {
          registeredAppAndShuffles.get(appId).remove(appIdShuffleId._2);
        }
      }
    }
  
    public void updateAppHeartbeatMeta(
        String appId,
        long time,
        long totalWritten,
        long fileCount,
        long shuffleCount,
        long applicationCount,
        Map<String, Long> shuffleFallbackCounts,
        Map<String, Long> applicationFallbackCounts) {
      appHeartbeatTime.put(appId, time);
      partitionTotalWritten.add(totalWritten);
      partitionTotalFileCount.add(fileCount);
      shuffleTotalCount.add(shuffleCount);
      applicationTotalCount.add(applicationCount);
      addFallbackCounts(this.shuffleFallbackCounts, shuffleFallbackCounts);
      addFallbackCounts(this.applicationFallbackCounts, applicationFallbackCounts);
    }
  
    public void updateAppLostMeta(String appId) {
      registeredAppAndShuffles.remove(appId);
      appHeartbeatTime.remove(appId);
      applicationMetas.remove(appId);
      applicationInfos.remove(appId);
    }
  
    @VisibleForTesting
    public void updateExcludedWorkersMeta(
        List<WorkerInfo> workersToAdd, List<WorkerInfo> workersToRemove) {
      workersToAdd.forEach(
          worker -> {
            excludedWorkers.add(worker);
            availableWorkers.remove(worker);
          });
      workersToRemove.forEach(
          worker -> {
            excludedWorkers.remove(worker);
            updateAvailableWorkers(worker);
          });
    }
  
    public void updateManuallyExcludedWorkersMeta(
        List<WorkerInfo> workersToAdd, List<WorkerInfo> workersToRemove) {
      workersToAdd.forEach(
          worker -> {
            manuallyExcludedWorkers.add(worker);
            availableWorkers.remove(worker);
          });
      workersToRemove.forEach(
          worker -> {
            manuallyExcludedWorkers.remove(worker);
            updateAvailableWorkers(worker);
          });
    }
  
    public void reviseLostShuffles(String appId, List<Integer> lostShuffles) {
      registeredAppAndShuffles.computeIfAbsent(appId, v -> new HashSet<>()).addAll(lostShuffles);
    }
  
    public void deleteApp(String appId) {
      registeredAppAndShuffles.remove(appId);
    }
  
    public void updateWorkerLostMeta(
        String host, int rpcPort, int pushPort, int fetchPort, int replicatePort) {
      WorkerInfo worker = new WorkerInfo(host, rpcPort, pushPort, fetchPort, replicatePort);
      workerLostEvents.add(worker);
      // remove worker from workers
      synchronized (workersMap) {
        workersMap.remove(worker.toUniqueId());
        lostWorkers.put(worker, System.currentTimeMillis());
        availableWorkers.remove(worker);
      }
      excludedWorkers.remove(worker);
      workerLostEvents.remove(worker);
    }
  
    public void removeWorkersUnavailableInfoMeta(List<WorkerInfo> unavailableWorkers) {
      synchronized (workersMap) {
        for (WorkerInfo workerInfo : unavailableWorkers) {
          if (lostWorkers.containsKey(workerInfo)) {
            lostWorkers.remove(workerInfo);
            shutdownWorkers.remove(workerInfo);
            workerEventInfos.remove(workerInfo);
            decommissionWorkers.remove(workerInfo);
            updateAvailableWorkers(workerInfo);
          }
        }
      }
    }
  
    private boolean hasAvailableStorage(WorkerInfo workerInfo) {
      Map<String, DiskInfo> disks = workerInfo.diskInfos();
      Pair<Boolean, Long> exceedCheckResult = isExceedingUnhealthyThreshold(disks);
  
      boolean hasDisk = !disks.isEmpty();
      boolean isExceeding = exceedCheckResult.getLeft();
      long unhealthyCount = exceedCheckResult.getRight();
  
      if (hasDisk) {
        if (!isExceeding) {
          return true;
        } else {
          LOG.warn(
              "Worker {} doesn't have enough healthy local disk (unhealthy count: {}). Has remote storage: {}",
              workerInfo,
              unhealthyCount,
              hasRemoteStorage);
        }
      }
  
      if (hasRemoteStorage) {
        return true;
      } else {
        LOG.warn("Worker {} has no available storage", workerInfo);
        return false;
      }
    }
  
    public void updateWorkerHeartbeatMeta(
        String host,
        int rpcPort,
        int pushPort,
        int fetchPort,
        int replicatePort,
        Map<String, DiskInfo> disks,
        long time,
        WorkerStatus workerStatus,
        boolean highWorkload) {
      WorkerInfo worker =
          new WorkerInfo(host, rpcPort, pushPort, fetchPort, replicatePort, -1, disks, null);
      AtomicLong availableSlots = new AtomicLong();
      LOG.debug("update worker {}:{} heartbeat {}", host, rpcPort, disks);
      synchronized (workersMap) {
        Optional<WorkerInfo> workerInfo = Optional.ofNullable(workersMap.get(worker.toUniqueId()));
        workerInfo.ifPresent(
            info -> {
              info.updateThenGetDiskInfos(disks, Option.apply(estimatedPartitionSize));
              availableSlots.set(info.totalAvailableSlots());
              info.lastHeartbeat_$eq(time);
              info.setWorkerStatus(workerStatus);
              info.setWorkLoad(highWorkload);
            });
      }
  
      WorkerEventInfo workerEventInfo = workerEventInfos.get(worker);
      if (workerEventInfo != null
          && WorkerStatusUtils.meetFinalState(workerEventInfo, workerStatus)) {
        workerEventInfos.remove(worker);
        if (workerStatus.getState() == PbWorkerStatus.State.Normal) {
          shutdownWorkers.remove(worker);
        }
      }
  
      // If using HDFSONLY mode, workers with empty disks should not be put into excluded worker list.
      if (!excludedWorkers.contains(worker) && (!hasAvailableStorage(worker) || highWorkload)) {
        LOG.warn("Worker {} adds to excluded workers, high workload: {}", worker, highWorkload);
        excludedWorkers.add(worker);
      } else if ((availableSlots.get() > 0 || hasRemoteStorage) && !highWorkload) {
        // only unblack if numSlots larger than 0
        excludedWorkers.remove(worker);
      }
  
      // release high work load workers when too many excluded workers
      if (autoReleaseHighWorkLoadEnabled
          && excludedWorkers.size()
              >= Math.floor(workersMap.size() * autoReleaseHighWorkLoadRatioThreshold)) {
        synchronized (workersMap) {
          List<WorkerInfo> toRemoved =
              excludedWorkers.stream()
                  .filter(
                      w -> {
                        WorkerInfo info = workersMap.get(w.toUniqueId());
                        return info != null
                            && info.isHighWorkLoad()
                            && hasAvailableStorage(w)
                            && info.totalAvailableSlots() > 0;
                      })
                  .collect(Collectors.toList());
          updateExcludedWorkersMeta(new ArrayList<>(), toRemoved);
        }
      }
  
      // try to update the available workers if the worker status is Normal
      if (workerStatus.getState() == PbWorkerStatus.State.Normal) {
        updateAvailableWorkers(worker);
      }
    }
  
    public void updateRegisterWorkerMeta(
        String host,
        int rpcPort,
        int pushPort,
        int fetchPort,
        int replicatePort,
        int internalPort,
        String networkLocation,
        Map<String, DiskInfo> disks) {
      WorkerInfo workerInfo =
          new WorkerInfo(
              host,
              rpcPort,
              pushPort,
              fetchPort,
              replicatePort,
              internalPort,
              disks,
              new HashMap<>());
      workerInfo.lastHeartbeat_$eq(System.currentTimeMillis());
      if (networkLocation != null
          && !networkLocation.isEmpty()
          && !NetworkTopology.DEFAULT_RACK.equals(networkLocation)) {
        workerInfo.networkLocation_$eq(networkLocation);
      } else {
        workerInfo.networkLocation_$eq(rackResolver.resolve(host).getNetworkLocation());
      }
      workerInfo.updateDiskSlots(estimatedPartitionSize);
      synchronized (workersMap) {
        workersMap.putIfAbsent(workerInfo.toUniqueId(), workerInfo);
        shutdownWorkers.remove(workerInfo);
        lostWorkers.remove(workerInfo);
        excludedWorkers.remove(workerInfo);
        workerEventInfos.remove(workerInfo);
        decommissionWorkers.remove(workerInfo);
        updateAvailableWorkers(workerInfo);
      }
    }
  
    /**
     * Used for ratis state machine to take snapshot
     *
     * @param file
     * @throws IOException
     */
    public void writeMetaInfoToFile(File file) throws IOException, RuntimeException {
      byte[] snapshotBytes =
          PbSerDeUtils.toPbSnapshotMetaInfo(
                  estimatedPartitionSize,
                  registeredAppAndShuffles,
                  hostnameSet,
                  excludedWorkers,
                  manuallyExcludedWorkers,
                  workerLostEvents,
                  appHeartbeatTime,
                  new HashSet(workersMap.values()),
                  partitionTotalWritten.sum(),
                  partitionTotalFileCount.sum(),
                  shuffleTotalCount.sum(),
                  applicationTotalCount.sum(),
                  shuffleFallbackCounts,
                  applicationFallbackCounts,
                  lostWorkers,
                  shutdownWorkers,
                  workerEventInfos,
                  applicationMetas,
                  applicationInfos,
                  decommissionWorkers)
              .toByteArray();
      Files.write(file.toPath(), snapshotBytes);
    }
  
    /**
     * Used for ratis state machine to load snapshot
     *
     * @param file
     * @throws IOException
     */
    public void restoreMetaFromFile(File file) throws IOException {
      try (BufferedInputStream in = new BufferedInputStream(new FileInputStream(file))) {
        PbSnapshotMetaInfo snapshotMetaInfo = PbSnapshotMetaInfo.parseFrom(in);
        cleanUpState();
  
        estimatedPartitionSize = snapshotMetaInfo.getEstimatedPartitionSize();
  
        for (String shuffleKey : snapshotMetaInfo.getRegisteredShuffleList()) {
          Tuple2<String, Object> appIdShuffleId = Utils.splitShuffleKey(shuffleKey);
          registeredAppAndShuffles
              .computeIfAbsent(appIdShuffleId._1, v -> new HashSet<>())
              .add((Integer) appIdShuffleId._2);
        }
        hostnameSet.addAll(snapshotMetaInfo.getHostnameSetList());
        excludedWorkers.addAll(
            snapshotMetaInfo.getExcludedWorkersList().stream()
                .map(PbSerDeUtils::fromPbWorkerInfo)
                .collect(Collectors.toSet()));
        manuallyExcludedWorkers.addAll(
            snapshotMetaInfo.getManuallyExcludedWorkersList().stream()
                .map(PbSerDeUtils::fromPbWorkerInfo)
                .collect(Collectors.toSet()));
        workerLostEvents.addAll(
            snapshotMetaInfo.getWorkerLostEventsList().stream()
                .map(PbSerDeUtils::fromPbWorkerInfo)
                .collect(Collectors.toSet()));
        appHeartbeatTime.putAll(snapshotMetaInfo.getAppHeartbeatTimeMap());
  
        registeredAppAndShuffles.forEach(
            (appId, shuffleId) -> {
              if (!appHeartbeatTime.containsKey(appId)) {
                appHeartbeatTime.put(appId, System.currentTimeMillis());
              }
            });
  
        Set<WorkerInfo> workerInfoSet =
            snapshotMetaInfo.getWorkersList().stream()
                .map(PbSerDeUtils::fromPbWorkerInfo)
                .collect(Collectors.toSet());
        List<String> workerHostList =
            workerInfoSet.stream()
                .filter(w -> NetworkTopology.DEFAULT_RACK.equals(w.networkLocation()))
                .map(WorkerInfo::host)
                .collect(Collectors.toList());
        scala.collection.immutable.Map<String, Node> resolveMap =
            rackResolver.resolveToMap(workerHostList);
        workersMap.putAll(
            workerInfoSet.stream()
                .peek(
                    workerInfo -> {
                      // Reset worker's network location with current master's configuration.
                      if (NetworkTopology.DEFAULT_RACK.equals(workerInfo.networkLocation())) {
                        workerInfo.networkLocation_$eq(
                            resolveMap.get(workerInfo.host()).get().getNetworkLocation());
                      }
                    })
                .collect(Collectors.toMap(WorkerInfo::toUniqueId, w -> w)));
  
        snapshotMetaInfo
            .getLostWorkersMap()
            .forEach((key, value) -> lostWorkers.put(WorkerInfo.fromUniqueId(key), value));
  
        snapshotMetaInfo
            .getWorkerEventInfosMap()
            .entrySet()
            .forEach(
                entry ->
                    workerEventInfos.put(
                        WorkerInfo.fromUniqueId(entry.getKey()),
                        PbSerDeUtils.fromPbWorkerEventInfo(entry.getValue())));
  
        shutdownWorkers.addAll(
            snapshotMetaInfo.getShutdownWorkersList().stream()
                .map(PbSerDeUtils::fromPbWorkerInfo)
                .collect(Collectors.toSet()));
  
        decommissionWorkers.addAll(
            snapshotMetaInfo.getDecommissionWorkersList().stream()
                .map(PbSerDeUtils::fromPbWorkerInfo)
                .collect(Collectors.toSet()));
  
        partitionTotalWritten.add(snapshotMetaInfo.getPartitionTotalWritten());
        partitionTotalFileCount.add(snapshotMetaInfo.getPartitionTotalFileCount());
        shuffleTotalCount.add(snapshotMetaInfo.getShuffleTotalCount());
        applicationTotalCount.add(snapshotMetaInfo.getApplicationTotalCount());
        addFallbackCounts(shuffleFallbackCounts, snapshotMetaInfo.getShuffleFallbackCountsMap());
        addFallbackCounts(
            applicationFallbackCounts, snapshotMetaInfo.getApplicationFallbackCountsMap());
  
        snapshotMetaInfo
            .getApplicationMetasMap()
            .forEach(
                (key, value) -> applicationMetas.put(key, PbSerDeUtils.fromPbApplicationMeta(value)));
  
        snapshotMetaInfo
            .getApplicationInfosMap()
            .forEach(
                (key, value) -> applicationInfos.put(key, PbSerDeUtils.fromPbApplicationInfo(value)));
  
        availableWorkers.addAll(
            workersMap.values().stream()
                .filter(worker -> isWorkerAvailable(worker))
                .collect(Collectors.toSet()));
      } catch (Exception e) {
        throw new IOException(e);
      }
      LOG.info("Successfully restore meta info from snapshot {}", file.getAbsolutePath());
      LOG.info(
          "Worker size: {}, Registered shuffle size: {}. Worker excluded list size: {}. Manually Excluded list size: {}",
          workersMap.size(),
          registeredAppAndShuffles.size(),
          excludedWorkers.size(),
          manuallyExcludedWorkers.size());
      workersMap.values().forEach(workerInfo -> LOG.info(workerInfo.toString()));
      registeredAppAndShuffles.forEach(
          (appId, shuffleId) -> LOG.info("RegisteredShuffle {}-{}", appId, shuffleId));
    }
  
    private void cleanUpState() {
      registeredAppAndShuffles.clear();
      hostnameSet.clear();
      workersMap.clear();
      availableWorkers.clear();
      lostWorkers.clear();
      appHeartbeatTime.clear();
      excludedWorkers.clear();
      shutdownWorkers.clear();
      decommissionWorkers.clear();
      manuallyExcludedWorkers.clear();
      workerLostEvents.clear();
      partitionTotalWritten.reset();
      partitionTotalFileCount.reset();
      shuffleTotalCount.reset();
      applicationTotalCount.reset();
      shuffleFallbackCounts.clear();
      applicationFallbackCounts.clear();
      workerEventInfos.clear();
      applicationMetas.clear();
      applicationInfos.clear();
    }
  
    public void updateMetaByReportWorkerUnavailable(List<WorkerInfo> failedWorkers) {
      synchronized (this.workersMap) {
        shutdownWorkers.addAll(failedWorkers);
        availableWorkers.removeAll(failedWorkers);
      }
    }
  
    public void updateWorkerEventMeta(int workerEventTypeValue, List<WorkerInfo> workerInfoList) {
      long eventTime = System.currentTimeMillis();
      ResourceProtos.WorkerEventType eventType =
          ResourceProtos.WorkerEventType.forNumber(workerEventTypeValue);
      synchronized (this.workersMap) {
        for (WorkerInfo workerInfo : workerInfoList) {
          WorkerEventInfo workerEventInfo = workerEventInfos.get(workerInfo);
          LOG.info("Received worker event: {} for worker: {}", eventType, workerInfo.toUniqueId());
          if (workerEventInfo == null || !workerEventInfo.isSameEvent(eventType.getNumber())) {
            if (eventType == ResourceProtos.WorkerEventType.None) {
              workerEventInfos.remove(workerInfo);
              updateAvailableWorkers(workerInfo);
            } else {
              workerEventInfos.put(workerInfo, new WorkerEventInfo(eventType.getNumber(), eventTime));
              availableWorkers.remove(workerInfo);
            }
          }
        }
      }
    }
  
    public void updateMetaByReportWorkerDecommission(List<WorkerInfo> workers) {
      synchronized (this.workersMap) {
        decommissionWorkers.addAll(workers);
        availableWorkers.removeAll(workers);
      }
    }
  
    public void updatePartitionSize() {
      long oldEstimatedPartitionSize = estimatedPartitionSize;
      long tmpTotalWritten = partitionTotalWritten.sumThenReset();
      long tmpFileCount = partitionTotalFileCount.sumThenReset();
      LOG.debug(
          "update partition size total written {}, file count {}",
          Utils.bytesToString(tmpTotalWritten),
          tmpFileCount);
      if (tmpFileCount != 0) {
        estimatedPartitionSize =
            Math.max(
                conf.minPartitionSizeToEstimate(),
                Math.min(tmpTotalWritten / tmpFileCount, conf.maxPartitionSizeToEstimate()));
      } else {
        estimatedPartitionSize = initialEstimatedPartitionSize;
      }
  
      // Do not trigger update is estimated partition size value is unchanged
      if (estimatedPartitionSize == oldEstimatedPartitionSize) {
        return;
      }
  
      LOG.warn(
          "Celeborn cluster estimated partition size changed from {} to {}",
          Utils.bytesToString(oldEstimatedPartitionSize),
          Utils.bytesToString(estimatedPartitionSize));
  
      HashSet<WorkerInfo> workers = new HashSet(workersMap.values());
      excludedWorkers.forEach(workers::remove);
      manuallyExcludedWorkers.forEach(workers::remove);
      workers.forEach(workerInfo -> workerInfo.updateDiskSlots(estimatedPartitionSize));
    }
  
    private boolean isWorkerAvailable(WorkerInfo workerInfo) {
      return (workerInfo.getWorkerStatus().getState() == PbWorkerStatus.State.Normal
              && !workerEventInfos.containsKey(workerInfo))
          && !excludedWorkers.contains(workerInfo)
          && !shutdownWorkers.contains(workerInfo)
          && !manuallyExcludedWorkers.contains(workerInfo);
    }
  
    private void updateAvailableWorkers(WorkerInfo worker) {
      synchronized (workersMap) {
        Optional<WorkerInfo> workerInfo = Optional.ofNullable(workersMap.get(worker.toUniqueId()));
        if (workerInfo.map(this::isWorkerAvailable).orElse(false)) {
          availableWorkers.add(workerInfo.get());
        } else {
          availableWorkers.remove(worker);
        }
      }
    }
  
    public void updateApplicationMeta(ApplicationMeta applicationMeta) {
      applicationMetas.putIfAbsent(applicationMeta.appId(), applicationMeta);
    }
  
    public void removeApplicationMeta(String appId) {
      applicationMetas.remove(appId);
    }
  
    public int registeredShuffleCount() {
      return registeredAppAndShuffles.values().stream().mapToInt(Set::size).sum();
    }
  
    private void addFallbackCounts(Map<String, Long> fallbackCounts, Map<String, Long> counts) {
      for (String fallbackPolicy : counts.keySet()) {
        fallbackCounts.compute(
            fallbackPolicy, (k, v) -> v == null ? counts.get(k) : v + counts.get(k));
      }
    }
  
    public void updateWorkerResourceConsumptions(
        String host,
        int rpcPort,
        int pushPort,
        int fetchPort,
        int replicatePort,
        Map<UserIdentifier, ResourceConsumption> resourceConsumptions) {
      WorkerInfo worker =
          new WorkerInfo(host, rpcPort, pushPort, fetchPort, replicatePort, -1, null, null);
      synchronized (workersMap) {
        Optional<WorkerInfo> workerInfo = Optional.ofNullable(workersMap.get(worker.toUniqueId()));
        workerInfo.ifPresent(info -> info.updateThenGetUserResourceConsumption(resourceConsumptions));
      }
    }
  
    private Pair<Boolean, Long> isExceedingUnhealthyThreshold(Map<String, DiskInfo> diskMap) {
      long unhealthyCount =
          diskMap.values().stream().filter(disk -> !disk.status().equals(DiskStatus.HEALTHY)).count();
      return new ImmutablePair<>(
          unhealthyCount * 1.0 / diskMap.size() >= unhealthyDiskRatioThreshold, unhealthyCount);
    }
  
    public boolean isAppInterruptShuffleEnabled(String appId) {
      return Boolean.parseBoolean(
          Optional.ofNullable(applicationInfos.get(appId))
              .map(ApplicationInfo::extraInfo)
              .map(extraInfo -> extraInfo.get(CelebornConf.QUOTA_INTERRUPT_SHUFFLE_ENABLED().key()))
              .orElse(CelebornConf.QUOTA_INTERRUPT_SHUFFLE_ENABLED().defaultValueString()));
    }
  }
  