Page History

package org.apache.kafka.common.config;

/**
 * This class holds definitions for log level configurations related to Kafka's application logging. See KIP-412 for additional information
 */
public class LogLevelConfig {
    /*
     * NOTE: DO NOT CHANGE EITHER CONFIG NAMES AS THESE ARE PART OF THE PUBLIC API AND CHANGE WILL BREAK USER CODE.
     */

    /**
     * The <code>OFF</code> has the highest possible rank and is
     * intended to turn off logging.
     * WARNING: This is not recommended for use
     */
    public static final String OFF_LOG_LEVEL = "OFF";

    /**
     * The <code>FATAL</code> level designates a very severe error
     * that will lead the Kafka broker to abort.
     */
    public static final String FATAL_LOG_LEVEL = "FATAL";

    /**
     * The <code>ERROR</code> level designates error events that
     * might still allow the broker to continue running.
     */
    public static final String ERROR_LOG_LEVEL = "ERROR";

    /**
     * The <code>WARN</code> level designates potentially harmful situations.
     */
    public static final String WARN_LOG_LEVEL = "WARN";

    /**
     * The <code>INFO</code> level designates informational messages
     *      that highlight normal Kafka events at a coarse-grained level
     */
    public static final String INFO_LOG_LEVEL = "INFO";

    /**
     * The <code>DEBUG</code> Level designates fine-grained
     * informational events that are most useful to debug Kafka
     */
    public static final String DEBUG_LOG_LEVEL = "DEBUG";

    /**
     * The <code>TRACE</code> Level designates finer-grained
     * informational events than the <code>DEBUG</code level.
     */
    public static final String TRACE_LOG_LEVEL = "TRACE";

    /**
     * The <code>ALL</code> has the lowest possible rank and is intended to turn on all logging.
     */
    public static final String ALL_LOG_LEVEL = "ALL";
}