#########the time is 10.040 46828:M 26 Jul 11:33:10.040 * 10 changes in 300 seconds. Saving...
    46828:M 26 Jul 11:33:10.046 * Background saving started by pid 62593
    46828:signal-handler (1469503990)
    --- WATCHDOG TIMER EXPIRED ---
    ./redis-server *:6379 [cluster](logStackTrace+0x43)[0x4507f3]
    ./redis-server *:6379 [cluster](clientsCronResizeQueryBuffer+0x46）[0x421a76]
    /lib64/libpthread.so.0[0x328500f790]
    ./redis-server *:6379 [cluster](clientsCronResizeQueryBuffer+0x46)[0x421a76]
    ./redis-server *:6379 [cluster](clientsCron+0x7f)[0x42322f]
    ./redis-server *:6379 [cluster](serverCron+0x194)[0x4233d4]
    ./redis-server *:6379 [cluster](aeProcessEvents+0x202)[0x41a662]
    ./redis-server *:6379 [cluster](aeMain+0x2b)[0x41a85b]
    ./redis-server *:6379 [cluster](main+0x2ca)[0x423cfa]
    /lib64/libc.so.6(__libc_start_main+0xfd)[0x3284c1ed5d]
    ./redis-server *:6379 [cluster][0x419bb9]
     46828:signal-handler (1469503990) --------
     46828:signal-handler (1469503992)
     --- WATCHDOG TIMER EXPIRED ---
     ./redis-server *:6379 [cluster](logStackTrace+0x43)[0x4507f3]
     ./redis-server *:6379 [cluster](zslInsert+0x193)[0x442bb3]
     /lib64/libpthread.so.0[0x328500f790]
    ./redis-server *:6379 [cluster](zslInsert+0x193)[0x442bb3]
    ./redis-server *:6379 [cluster](slotToKeyAdd+0x2d)[0x42fa5d]
    ./redis-server *:6379 [cluster](setKey+0x76)[0x431576]
    ./redis-server *:6379 [cluster](setGenericCommand+0xa4)[0x439af4]
    ./redis-server *:6379 [cluster](setnxCommand+0x58)[0x439d58]
    ./redis-server *:6379 [cluster](call+0x72)[0x420222]
    ./redis-server *:6379 [cluster](processCommand+0x3e5)[0x420845]
    ./redis-server *:6379 [cluster](processInputBuffer+0x4f)[0x42c69f]
    ./redis-server *:6379 [cluster](readQueryFromClient+0xc2)[0x42c7e2
    ./redis-server *:6379 [cluster](aeProcessEvents+0x13c)[0x41a59c]
    ./redis-server *:6379 [cluster](aeMain+0x2b)[0x41a85b]
    ./redis-server *:6379 [cluster](main+0x2ca)[0x423cfa]
    /lib64/libc.so.6(__libc_start_main+0xfd)[0x3284c1ed5d]
    ./redis-server *:6379 [cluster][0x419bb9]
    46828:signal-handler (1469503992) --------
    62593:C 26 Jul 11:33:14.272 * DB saved on disk
    62593:C 26 Jul 11:33:14.277 * RDB: 101 MB of memory used by copy-on-write