spymemcached Javaクライアントの失敗：MemBase値サーバ

Question

を私はMemBase値サーバをコメントするためにaspymemcached Javaクライアントを使用しています：

public static void main(String[] args) throws Exception{ 
     MemcachedClient client = null; 
     try { 
      URI server1 = new URI("http://192.168.100.111:8091/pools"); //primary 
      URI server2 = new URI("http://127.0.0.1:8091/pools"); //secondry 
      ArrayList<URI> serverList = new ArrayList<URI>(); 
      serverList.add(server1); 
      serverList.add(server2); 
      client = new MemcachedClient(serverList, "bucketName", ""); 
      client.set("spoon", 50000, "Hello World!"); //after this line i am going to down server 1 (192.168.100.111:8091/pools) 
      Thread.sleep(35000); 
      Object obj = client.get("spoon"); // on excetuting this line value should returns from server 2 
     } catch (Exception e) { 
      log.error("Exception in initializing membase connection:" + e.getMessage(), e); 
     } 
} 

私は、レプリケーションにruningて2 MemBase値サーバを持っています。プライマリ（サーバー1）ノードがダウンした場合さて、クライアントは、セカンダリノード（サーバー2）から値を読み取るされていないと私は次のようなエラーになっています：

2017-03-20 07:51:55,655 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) 
2017-03-20 07:51:55,655 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) 
2017-03-20 07:51:55,655 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:407) 
2017-03-20 07:51:55,655 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:275) 
2017-03-20 07:51:55,655 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) at net.spy.memcached.MemcachedClient.run(MemcachedClient.java:2030) 
2017-03-20 07:51:55,656 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) 2017-03-20 07:51:55.656 WARN net.spy.memcached.MemcachedConnection: Closing, and reopening {QA sa=/192.168.100.111:8091, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0}, attempt 5. 
2017-03-20 07:52:04,549 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) 2017-03-20 07:52:04.549 INFO net.spy.memcached.MemcachedConnection: Reconnecting {QA sa=/192.168.100.111:8091, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0} 
2017-03-20 07:52:05,542 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) 2017-03-20 07:52:05.542 INFO net.spy.memcached.MemcachedConnection: Connection state changed for sun.nio.ch.SelectionKeyImpl@58b50eaf 
2017-03-20 07:52:05,542 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) 2017-03-20 07:52:05.542 INFO net.spy.memcached.MemcachedConnection: Reconnecting due to failure to connect to {QA sa=/192.168.100.111:8091, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0} 
2017-03-20 07:52:05,542 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) java.net.ConnectException: Connection refused: no further information 
2017-03-20 07:52:05,542 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) 
2017-03-20 07:52:05,542 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) 
2017-03-20 07:52:05,542 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:407) 
2017-03-20 07:52:05,542 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:275) 
2017-03-20 07:52:05,543 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) at net.spy.memcached.MemcachedClient.run(MemcachedClient.java:2030) 
2017-03-20 07:52:05,543 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) 2017-03-20 07:52:05.543 WARN net.spy.memcached.MemcachedConnection: Closing, and reopening {QA sa=/192.168.100.111:8091, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0}, attempt 5. 
2017-03-20 07:52:20,356 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) 2017-03-20 07:52:20.356 INFO net.spy.memcached.MemcachedConnection: Reconnecting {QA sa=/192.168.100.111:8091, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0} 
2017-03-20 07:52:21,356 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) 2017-03-20 07:52:21.356 INFO net.spy.memcached.MemcachedConnection: Connection state changed for sun.nio.ch.SelectionKeyImpl@6fab717a 
2017-03-20 07:52:21,356 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) 2017-03-20 07:52:21.356 INFO net.spy.memcached.MemcachedConnection: Reconnecting due to failure to connect to {QA sa=/192.168.100.111:8091, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0} 
2017-03-20 07:52:21,356 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) java.net.ConnectException: Connection refused: no further information 
2017-03-20 07:52:21,356 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) 
2017-03-20 07:52:21,356 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) 
2017-03-20 07:52:21,356 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:407) 
2017-03-20 07:52:21,356 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:275) 
2017-03-20 07:52:21,356 ERROR [stderr] (Memcached IO over {MemcachedConnection to /127.0.0.1:8091 /192.168.100.111:8091}) at net.spy.memcached.MemcachedClient.run(MemcachedClient.java:2030) 

私の期待される動作は、クライアントがsecondryサーバー（サーバー2）から値を読んでください、ですプライマリサーバの再接続が必要です。

Answer 1

我々はConnectionObserver は私answer