unplug the ethernet cable from the server while the client is writing entries to the memcacheD,client will hang for 10+seconds,same like " Failover issue(issue#23)"

[judybuaa]

Hi,our configuration is as follow:
SchoonerSockIOPool pool = SchoonerSockIOPool.getInstance(poolName);
pool.setServers(hostAndPort);
pool.setWeights(hostWeight);
pool.setInitConn(20);
pool.setMinConn(20);
pool.setMaxConn(250);
pool.setMaxIdle(86400000);
pool.setMaintSleep(30);
pool.setNagle(false);
pool.setSocketTO(3000);
pool.setSocketConnectTO(300);
pool.setHashingAlg(SockIOPool.CONSISTENT_HASH);
pool.setFailover(true);
pool.setFailback(true);

our operation step is as follow:
1.install and start memcached-1.4.7 on two servers,the client's version is 2.6.2
2.put a breakpoint at line 682 of AscIIClient
682 sock.writeBuf.clear();
3.start the client to get somekey we put in on server successully
while the program is run at the breakpoint, I unplug the ethernet cable (or reboot),then after 1520 sec,I receive the following exception
89448 [main] ERROR com.danga.MemCached.MemCachedClient - ++++ exception thrown while trying to get object from cache for key: memcache_not_return_key1
389448 [main] ERROR com.danga.MemCached.MemCachedClient - 您的主机中的软件中止了一个已建立的连接。
java.io.IOException: 您的主机中的软件中止了一个已建立的连接。
at sun.nio.ch.SocketDispatcher.read0(Native Method)
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:25)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:198)
at sun.nio.ch.IOUtil.read(IOUtil.java:166)
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:243)
at com.schooner.MemCached.SockInputStream.(SockInputStream.java:84)
at com.schooner.MemCached.AscIIClient.get(AscIIClient.java:693)
at com.schooner.MemCached.AscIIClient.get(AscIIClient.java:610)
at com.schooner.MemCached.AscIIClient.get(AscIIClient.java:606)
at com.danga.MemCached.MemCachedClient.get(MemCachedClient.java:917)
.....
So my question is why there will be 520 sec before the exception throw rather than 300ms I set(pool.setSocketConnectTO(300)) or default 3seconds before?

I saw issue#23, your answer is as follow:

Don't use the following api:
pool.setMaintSleep
pool.setSocketTO
pool.setSocketConnectTO
pool.setMaxIdle
pool.setAliveCheck

But it still not working,I tried 2.6.5, the result is same