Examples with Logger org.apache.log4j.Logger used on opensource projects

Example 1 with Logger

use of org.apache.log4j.Logger in project hadoop by apache.

the class HttpRequestLog method getRequestLog.

public static RequestLog getRequestLog(String name) {
    String lookup = serverToComponent.get(name);
    if (lookup != null) {
        name = lookup;
    }
    String loggerName = "http.requests." + name;
    String appenderName = name + "requestlog";
    Log logger = LogFactory.getLog(loggerName);
    boolean isLog4JLogger;
    ;
    try {
        isLog4JLogger = logger instanceof Log4JLogger;
    } catch (NoClassDefFoundError err) {
        // In some dependent projects, log4j may not even be on the classpath at
        // runtime, in which case the above instanceof check will throw
        // NoClassDefFoundError.
        LOG.debug("Could not load Log4JLogger class", err);
        isLog4JLogger = false;
    }
    if (isLog4JLogger) {
        Log4JLogger httpLog4JLog = (Log4JLogger) logger;
        Logger httpLogger = httpLog4JLog.getLogger();
        Appender appender = null;
        try {
            appender = httpLogger.getAppender(appenderName);
        } catch (LogConfigurationException e) {
            LOG.warn("Http request log for " + loggerName + " could not be created");
            throw e;
        }
        if (appender == null) {
            LOG.info("Http request log for " + loggerName + " is not defined");
            return null;
        }
        if (appender instanceof HttpRequestLogAppender) {
            HttpRequestLogAppender requestLogAppender = (HttpRequestLogAppender) appender;
            NCSARequestLog requestLog = new NCSARequestLog();
            requestLog.setFilename(requestLogAppender.getFilename());
            requestLog.setRetainDays(requestLogAppender.getRetainDays());
            return requestLog;
        } else {
            LOG.warn("Jetty request log for " + loggerName + " was of the wrong class");
            return null;
        }
    } else {
        LOG.warn("Jetty request log can only be enabled using Log4j");
        return null;
    }
}

Example 2 with Logger

use of org.apache.log4j.Logger in project hadoop by apache.

the class FSNamesystem method enableAsyncAuditLog.

private static void enableAsyncAuditLog() {
    if (!(auditLog instanceof Log4JLogger)) {
        LOG.warn("Log4j is required to enable async auditlog");
        return;
    }
    Logger logger = ((Log4JLogger) auditLog).getLogger();
    @SuppressWarnings("unchecked") List<Appender> appenders = Collections.list(logger.getAllAppenders());
    // failsafe against trying to async it more than once
    if (!appenders.isEmpty() && !(appenders.get(0) instanceof AsyncAppender)) {
        AsyncAppender asyncAppender = new AsyncAppender();
        // previously configured appenders
        for (Appender appender : appenders) {
            logger.removeAppender(appender);
            asyncAppender.addAppender(appender);
        }
        logger.addAppender(asyncAppender);
    }
}

Example 3 with Logger

use of org.apache.log4j.Logger in project hadoop by apache.

the class TestFsck method verifyAuditLogs.

private void verifyAuditLogs() throws IOException {
    // Turn off the logs
    Logger logger = ((Log4JLogger) FSNamesystem.auditLog).getLogger();
    logger.setLevel(Level.OFF);
    BufferedReader reader = null;
    try {
        // Audit log should contain one getfileinfo and one fsck
        reader = new BufferedReader(new FileReader(AUDITLOG_FILE));
        String line;
        //
        for (int i = 0; i < 2; i++) {
            line = reader.readLine();
            assertNotNull(line);
            assertTrue("Expected getfileinfo event not found in audit log", GET_FILE_INFO_PATTERN.matcher(line).matches());
        }
        line = reader.readLine();
        assertNotNull(line);
        assertTrue("Expected fsck event not found in audit log", FSCK_PATTERN.matcher(line).matches());
        assertNull("Unexpected event in audit log", reader.readLine());
    } finally {
        // handle after verifying the content of the file.
        if (reader != null) {
            reader.close();
        }
        if (logger != null) {
            logger.removeAllAppenders();
        }
    }
}

Example 4 with Logger

use of org.apache.log4j.Logger in project hadoop by apache.

the class TestFsck method setupAuditLogs.

/** Sets up log4j logger for auditlogs. */
private void setupAuditLogs() throws IOException {
    File file = new File(AUDITLOG_FILE);
    if (file.exists()) {
        file.delete();
    }
    Logger logger = ((Log4JLogger) FSNamesystem.auditLog).getLogger();
    logger.setLevel(Level.INFO);
    PatternLayout layout = new PatternLayout("%m%n");
    RollingFileAppender appender = new RollingFileAppender(layout, AUDITLOG_FILE);
    logger.addAppender(appender);
}

Example 5 with Logger

use of org.apache.log4j.Logger in project hadoop by apache.

the class TestDecommissioningStatus method testDecommissionDeadDN.

/**
   * Verify the support for decommissioning a datanode that is already dead.
   * Under this scenario the datanode should immediately be marked as
   * DECOMMISSIONED
   */
@Test(timeout = 120000)
public void testDecommissionDeadDN() throws Exception {
    Logger log = Logger.getLogger(DecommissionManager.class);
    log.setLevel(Level.DEBUG);
    DatanodeID dnID = cluster.getDataNodes().get(0).getDatanodeId();
    String dnName = dnID.getXferAddr();
    DataNodeProperties stoppedDN = cluster.stopDataNode(0);
    DFSTestUtil.waitForDatanodeState(cluster, dnID.getDatanodeUuid(), false, 30000);
    FSNamesystem fsn = cluster.getNamesystem();
    final DatanodeManager dm = fsn.getBlockManager().getDatanodeManager();
    DatanodeDescriptor dnDescriptor = dm.getDatanode(dnID);
    decommissionNode(dnName);
    dm.refreshNodes(conf);
    BlockManagerTestUtil.recheckDecommissionState(dm);
    assertTrue(dnDescriptor.isDecommissioned());
    // Add the node back
    cluster.restartDataNode(stoppedDN, true);
    cluster.waitActive();
    // Call refreshNodes on FSNamesystem with empty exclude file to remove the
    // datanode from decommissioning list and make it available again.
    hostsFileWriter.initExcludeHost("");
    dm.refreshNodes(conf);
}