Meta Server and Chunk Server can't start, Why?

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after, command "python kfssetup.py -f machines.cfg -m machines.txt -b ../build 
-w ../webui" and command "python kfslaunch.py -f machines.cfg -m machines.txt 
-s", I tend to run command "kfsping -m -s 192.168.1.107 -p 20000", but can not 
connect.

It display the following info

[root@bogon tools]# ./kfsping -m -s 192.168.1.107 -p 20000
Connect: : Connection refused
02-19-2012 14:23:40.960 ERROR - (kfsping_main.cc:127) Unable to connect to 
192.168.1.107 20000

actually, Meta Server don't run.

So, I use cmd "./metaserver MetaServer.prp", shell tell me that

Loading key metaServer.clientPort with value 20000
Loading key metaServer.chunkServerPort with value 30000
Loading key metaServer.logDir with value ./kfslog
Loading key metaServer.cpDir with value ./kfscp
Using meta server client port: 20000
Using meta server chunk server port: 30000
Setting cluster key to:
Setting md5sumFilename to:
min. # of chunkserver that should connect: 1
min. # of replicas per file: 1
max. # of replicas per file: 64
Setting the # of open files to: 1024
restoring from checkpoint of Tue Feb 14 23:06:31 2012
log file is ./kfslog/log.0
Log time: Tue Feb 14 23:06:31 2012
kfs_startup() end
02-20-2012 16:39:45.170 INFO - (metaserver_main.cc:88) Starting metaserver...
02-20-2012 16:39:45.203 INFO - (replay.cc:57) Doing log replay from file: 
./kfslog/log.0
02-20-2012 16:39:45.204 INFO - (replay.cc:57) Doing log replay from file: 
./kfslog/log.0
02-20-2012 16:39:45.231 DEBUG - (logger.cc:122) Opening ./kfslog/log.0 in 
append mode

and no response.

why I can't start meta server and chunk server??

OS: Centos 5.7 x86_64
KFS Code: kfs-0.5

Thank you very much!

Original issue reported on code.google.com by turingl...@gmail.com on 20 Feb 2012 at 8:48