当我在前台启动Zookeeper时，看到以下警告。什么意思？
2019-06-09 17:24:57,808 [myid:1] - WARN [RecvWorker:1:QuorumCnxManager$RecvWorker@813] - Interrupting SendWorker
2019-06-09 17:24:57,809 [myid:1] - WARN [SendWorker:1:QuorumCnxManager$SendWorker@727] - Interrupted while waiting for message on queue
java.lang.InterruptedException
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.reportInterruptAfterWait(AbstractQueuedSynchronizer.java:2017)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2095)
at java.util.concurrent.ArrayBlockingQueue.poll(ArrayBlockingQueue.java:389)
at org.apache.zookeeper.server.quorum.QuorumCnxManager.pollSendQueue(QuorumCnxManager.java:879)
at org.apache.zookeeper.server.quorum.QuorumCnxManager.access$500(QuorumCnxManager.java:65)
at org.apache.zookeeper.server.quorum.QuorumCnxManager$SendWorker.run(QuorumCnxManager.java:715)