@Override
    public void onTimeout(final long sequence) throws Exception {
        if (LOG.isWarnEnabled()) {
            LOG.warn("Task timeout on: {}, sequence: {}.", Thread.currentThread().getName(), sequence);
        }
    }
Callback interface to be implemented for processing events
as they become available in the RingBuffer.

@author jiachun.fjc
jraft-rheakv/rheakv-core/src/main/java/com/alipay/sofa/jraft/rhea/util/concurrent/disruptor/TaskHandler.java