看起来你这个是memagent v0.7，但是当master挂掉后重新连上来是无法set了，这时memagent也会卡死

[tuhaolam]

Process 7946 attached
select(4, [0 3], [], [3], NULL) = 1 (in [0])
read(0, "sdsf\n", 7997) = 5
select(4, [0 3], [3], [3], {0, 0}) = 1 (out [3], left {0, 0})
sendto(3, "sdsf\r\n", 6, 0, NULL, 0) = 6
select(4, [0 3], [], [3], {0, 0}) = 0 (Timeout)
select(4, [0 3], [], [3], NULL) = 1 (in [0])
read(0, "get\n", 7992) = 4
select(4, [0 3], [3], [3], {0, 0}) = 1 (out [3], left {0, 0})
sendto(3, "get\r\n", 5, 0, NULL, 0) = 5
select(4, [0 3], [], [3], {0, 0}) = 0 (Timeout)
select(4, [0 3], [], [3], NULL) = 1 (in [0])
read(0, "get tuhao\n", 7988) = 10
select(4, [0 3], [3], [3], {0, 0}) = 1 (out [3], left {0, 0})
sendto(3, "get tuhao\r\n", 11, 0, NULL, 0) = 11
select(4, [0 3], [], [3], {0, 0}) = 0 (Timeout)