[Moosefs-users] how many times chunckserver will retry when disconnecting from metaserver ?

[kuer ku <ku...@gm...>]

Hi, all,

I deloyed a mfs-1.6.15 in my environment, today I found a problem. The
appearance is one of mfsmount (FUSE) complained that :

Nov 29 18:26:11 storage04 mfsmount[32233]: file: 43, index: 0 - can't
connect to proper chunkserver (try counter: 29)

I donot know which chunkserver cause this. ???

On web interface, I found  storage01, one of chunkservers, is not in the
server list. and on storage01, there are some logs in /var/log/messages :


Nov 29 14:43:27 storage01 mfsmount[13155]: master: connection lost (1)
Nov 29 14:43:27 storage01 mfsmount[13155]: registered to master
Nov 29 14:44:12 storage01 mfschunkserver[11730]: Master connection lost

 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                                        mfschunkserver found connection
lost, but there no logs indicate that mfschunkserver try to reconnect with
master

Nov 29 15:07:44 storage01 smartd[4268]: System clock time adjusted to the
past. Resetting next wakeup time.

# the following log happened because I restart chunkserver forcely

Nov 29 18:29:59 storage01 h*U¥2[11730]: closing *:19722
Nov 29 18:30:13 storage01 mfschunkserver[6764]: listen on *:19722
Nov 29 18:30:13 storage01 mfschunkserver[6764]: connecting ...
Nov 29 18:30:13 storage01 mfschunkserver[6764]: open files limit: 10000
Nov 29 18:30:13 storage01 mfschunkserver[6764]: connected to Master


and in chunkserver/masterconn.c , I found codes :

1311     main_eachloopregister(masterconn_check_hdd_reports);
1312
main_timeregister(TIMEMODE_RUNONCE,ReconnectionDelay,0,masterconn_reconnect);

 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    it will try to reconnect once ??????
1313     main_destructregister(masterconn_term);
1314     main_pollregister(masterconn_desc,masterconn_serve);
1315     main_reloadregister(masterconn_reload);


I think chunkserver should re-connect to master again and again, until it
reachs master. but I does not find that in the code.

P.S. I remember that I adjust storage01 's time by ntpdate dateserver. does
this affect chunckserver so seriously ??

thanks

  -- kuer