import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.timer.TimeoutTarget;

/**
 * HcConnectionMonitorTarget is responsible for monitoring and managing HTTP client connections.
 * It implements the TimeoutTarget interface to handle connection expiration events.
 *
 * <p>This class uses an instance of HttpClientConnectionManager to manage the connections.

 *
 * This transaction allows monitoring of file system changes in a directory,
 * such as file creation, modification, deletion, and attribute changes.
 */
public class NtTransNotifyChange extends SmbComNtTransaction {

    int fid;
    private final int completionFilter;
    private final boolean watchTree;

    /**
     * Constructs an NT transaction for change notification monitoring.

kibana 7 settings for fess
=====

Providing example of kibana settings file for monitoring search logs of fess.

## Install

1. Install and launch Fess.
1. Install and launch kibana.
1. Go to kibana home [http://localhost:5601/](http://localhost:5601/).
1. Click **Management**.
1. Click **Index Patterns**.
1. Click **Create index pattern** button
1. Input "fess\_log\*" to the textbox of **index pattern**.
1. Click **Next step**.

 *
 * <p>Key features:</p>
 * <ul>
 *   <li>Configurable maximum retry attempts</li>
 *   <li>Adjustable interval between retries</li>
 *   <li>Exception tracking and aggregation</li>
 *   <li>Request lifecycle monitoring through listener</li>
 * </ul>
 *
 * <p>By default, it will:</p>
 * <ul>
 *   <li>Retry up to 5 times</li>
 *   <li>Wait 500ms between retries</li>
 * </ul>
 *
 */

import org.opensearch.common.unit.TimeValue;

/**
 * Monitor target for tracking hot threads in the OpenSearch cluster.
 * This class extends MonitorTarget to provide monitoring functionality for
 * hot threads, which helps identify performance bottlenecks and resource
 * usage issues in the search engine cluster.
 */
public class HotThreadMonitorTarget extends MonitorTarget {

                queueSize.incrementAndGet();
            }
        }
        // If queue is full, let the buffer be garbage collected
    }

    /**
     * Get current cache statistics for monitoring
     * @return formatted statistics string
     */
    public static String getCacheStatistics() {
        return String.format("BufferCache: queued=%d, max=%d, utilization=%.1f%%", queueSize.get(), MAX_BUFFERS,

import org.opensearch.monitor.os.OsProbe;
import org.opensearch.monitor.os.OsStats;
import org.opensearch.monitor.process.ProcessProbe;

/**
 * This class is a timer target for monitoring system-level statistics.
 * It collects and logs information about the operating system, process,
 * JVM, and search engine.
 */
public class SystemMonitorTarget extends MonitorTarget {

 */
package jcifs.internal.witness;

import java.net.InetAddress;
import java.util.concurrent.atomic.AtomicLong;

/**
 * Represents a witness service registration for SMB resource monitoring.
 * This class maintains registration state, heartbeat information, and
 * sequence numbers for witness protocol communication.
 */
public class WitnessRegistration {
    private final String registrationId;

 * It contains various attributes related to the crawler's state, configuration, and runtime data.
 * This class provides methods to access and modify these attributes, allowing for control and monitoring
 * of the crawler's behavior.
 *
 * <p>
 * The context includes information such as the session ID, active thread count, access count, crawler status,