设置 AsyncAppender 为 neverBlock ，或者 blocking 设置为 false about logger.api

[hengyunabc]

#1

[hengyunabc]

https://logback.qos.ch/apidocs/ch/qos/logback/core/AsyncAppenderBase.html#setNeverBlock(boolean)

[hengyunabc]

https://logging.apache.org/log4j/log4j-2.9.1/log4j-core/apidocs/org/apache/logging/log4j/core/appender/AsyncAppender.Builder.html#setBlocking(boolean)

[hengyunabc]

logback默认buffer size 256

public class AsyncAppenderBase<E> extends UnsynchronizedAppenderBase<E> implements AppenderAttachable<E> {

    AppenderAttachableImpl<E> aai = new AppenderAttachableImpl<E>();
    BlockingQueue<E> blockingQueue;

    /**
     * The default buffer size.
     */
    public static final int DEFAULT_QUEUE_SIZE = 256;

[hengyunabc]

log4j默认buffer size 128

public class AsyncAppender extends AppenderSkeleton
  implements AppenderAttachable {
  /**
   * The default buffer size is set to 128 events.
   */
  public static final int DEFAULT_BUFFER_SIZE = 128;

[hengyunabc]

log4j2 默认也是 128

@Plugin(name = "Async", category = Core.CATEGORY_NAME, elementType = Appender.ELEMENT_TYPE, printObject = true)
public final class AsyncAppender extends AbstractAppender {

    private static final int DEFAULT_QUEUE_SIZE = 128;

[hengyunabc]

已经发布 0.2.7

<dependency>
    <groupId>com.taobao.middleware</groupId>
    <artifactId>logger.api</artifactId>
    <version>0.2.7</version>
</dependency>