ashishkumar50 commented on code in PR #8254: URL: https://github.com/apache/ozone/pull/8254#discussion_r2037046368
########## hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/containerlog/parser/ContainerLogFileParser.java: ########## @@ -0,0 +1,236 @@ +/* + * 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.hadoop.ozone.containerlog.parser; + +import java.io.BufferedReader; +import java.io.IOException; +import java.nio.charset.StandardCharsets; +import java.nio.file.Files; +import java.nio.file.Path; +import java.nio.file.Paths; +import java.sql.SQLException; +import java.util.ArrayList; +import java.util.List; +import java.util.concurrent.CountDownLatch; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.Executors; +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.concurrent.locks.ReentrantLock; +import java.util.stream.Collectors; +import java.util.stream.Stream; + +/** + * Container log file Parsing logic. + */ + +public class ContainerLogFileParser { + + private ExecutorService executorService; + private final List<DatanodeContainerInfo> batchList = new ArrayList<>(500); + private final ReentrantLock globalLock = new ReentrantLock(); + private static final int MAX_KEYS_IN_MAP = 400; + private final AtomicBoolean isGlobalLockHeld = new AtomicBoolean(false); + private final Object globalLockNotifier = new Object(); + + private static final String FILENAME_PARTS_REGEX = "-"; + private static final String DATANODE_ID_REGEX = "\\."; + private static final String LOG_LINE_SPLIT_REGEX = " \\| "; + private static final String KEY_VALUE_SPLIT_REGEX = "="; + + public void processLogEntries(String logDirectoryPath, ContainerDatanodeDatabase dbstore, int threadCount) + throws SQLException { + try (Stream<Path> paths = Files.walk(Paths.get(logDirectoryPath))) { + + List<Path> files = paths.filter(Files::isRegularFile).collect(Collectors.toList()); + + executorService = Executors.newFixedThreadPool(threadCount); + + CountDownLatch latch = new CountDownLatch(files.size()); + + for (Path file : files) { + Path fileNamePath = file.getFileName(); + String fileName = (fileNamePath != null) ? fileNamePath.toString() : ""; + String[] parts = fileName.split(FILENAME_PARTS_REGEX); + + if (parts.length < 3) { + System.out.println("Filename format is incorrect (not enough parts): " + fileName); + continue; + } + + String datanodeIdStr = parts[2]; + if (datanodeIdStr.contains(".log")) { + datanodeIdStr = datanodeIdStr.split(DATANODE_ID_REGEX)[0]; + } + + long datanodeId = Long.parseLong(datanodeIdStr); + + executorService.submit(() -> { + + String threadName = Thread.currentThread().getName(); + try { + System.out.println(threadName + " is starting to process file: " + file.toString()); + processFile(file.toString(), dbstore, datanodeId); + } catch (Exception e) { + System.err.println("Thread " + threadName + " is stopping to process the file: " + file.toString() + + " due to SQLException: " + e.getMessage()); + executorService.shutdown(); + } finally { + try { + latch.countDown(); + System.out.println(threadName + " finished processing file: " + file.toString() + + ", Latch count after countdown: " + latch.getCount()); + } catch (Exception e) { + e.printStackTrace(); + } + } + }); + } + latch.await(); + + if (!batchList.isEmpty()) { + processAndClearAllBatches(dbstore); + } + + executorService.shutdown(); + + } catch (IOException | InterruptedException e) { + e.printStackTrace(); + } catch (NumberFormatException e) { + System.err.println("Invalid datanode ID"); + } catch (SQLException e) { + System.err.println("Thread " + Thread.currentThread().getName() + + " is stopping due to SQLException: " + e.getMessage()); + executorService.shutdown(); + throw e; + } + } + + private synchronized void processAndClearAllBatches(ContainerDatanodeDatabase dbstore) throws SQLException { + List<DatanodeContainerInfo> localBatchList = null; + + globalLock.lock(); + try { + isGlobalLockHeld.set(true); + + localBatchList = new ArrayList<>(batchList); + batchList.clear(); + + } finally { + globalLock.unlock(); + isGlobalLockHeld.set(false); + synchronized (globalLockNotifier) { + globalLockNotifier.notifyAll(); + } + } + + if (localBatchList != null && !localBatchList.isEmpty()) { + dbstore.insertContainerDatanodeData(localBatchList); + localBatchList.clear(); + } + } + + + private void processFile(String logFilePath, ContainerDatanodeDatabase dbstore, long datanodeId) throws SQLException { + try (BufferedReader reader = Files.newBufferedReader(Paths.get(logFilePath), StandardCharsets.UTF_8)) { + String line; + while ((line = reader.readLine()) != null) { + String[] parts = line.split(LOG_LINE_SPLIT_REGEX); + String timestamp = parts[0].trim(); + String logLevel = parts[1].trim(); + String id = null, bcsid = null, state = null, index = null; + String errorMessage = "No error"; + + for (int i = 2; i < parts.length; i++) { + String part = parts[i].trim(); + + if (part.contains(KEY_VALUE_SPLIT_REGEX)) { + String[] keyValue = part.split(KEY_VALUE_SPLIT_REGEX, 2); + if (keyValue.length == 2) { + String key = keyValue[0].trim(); + String value = keyValue[1].trim(); + + switch (key) { + case "ID": + id = value; + break; + case "BCSID": + bcsid = value; + break; + case "State": + state = value.replace("|", "").trim(); + break; + case "Index": + index = value; + break; + default: + break; + } + } + } else { + if (!part.isEmpty()) { + errorMessage = part.replace("|", "").trim(); + } + } + } + + if (index == null || !index.equals("0")) { + continue; //Currently only ratis replicated containers are considered. + } + + if (id != null && bcsid != null && state != null) { + try { + long containerId = Long.parseLong(id); + long bcsidValue = Long.parseLong(bcsid); + + try { + synchronized (globalLockNotifier) { + while (isGlobalLockHeld.get()) { Review Comment: Each log file can be read and insert data into db independently. So we can avoid using any locks. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
