public void run(BigInteger sessionRefId, long timestamp) {
SessionProtocol protocol =
sessionService.getSessionProtocol(sessionRefId);
if (protocol != null) {
try {
protocol.channelLeave(channelRefId);
} catch (IOException e) {
logger.logThrow(
Level.WARNING, e, "channelLeave " +
"session:{0} channel:{0} throws",
HexDumper.toHexString(sessionRefId),