I made some small changes in the process of creating a file using pvfs2-touch .
I change the state machine of create.sm in the sub-directory of
src/server/create , but I just add a new state in the state machine , and the
new state is just to post a request to another server and get a response from
that server , for I want to test whether one MDS server could send message from
another MDS server and get response from that MDS server later.
The new state I added is just like the state of "create_setup_msgpair" in
sys-create.sm, it is as follows :
state prelude
{
jump pvfs2_prelude_sm;
success => opt_setup_msgpair;
default => setup_final_response;
}
state opt_setup_msgpair
{
run setup_opt;
success => opt_xfer_msgpair ;
default => setup_final_response;
}
state opt_xfer_msgpair
{
jump pvfs2_msgpairarray_sm ;
success => create_metafile ;
default => setup_final_response;
}
Then when I use the pvfs2-touch command to create a file , I can create a
file successfully ,also the A MDS can send a Message to B MDS and get a right
response from B successfully.(I just assume the two MDS server who want to
communicate with each other is A and B , and A send a message to B , then B
return a response to A using the callback functions. then I check the
pvfs2-server.log to ensure A send message to B successfully and B returns
right response to A )
The only problem now is that , when I want to restart the server A and
server B , I can not complete it successfully, and got the
error:PVFS_EADDRINUSE.
(This process is:
1. I first use "killall pvfs2-server" command to kill the server process in
server A and server B ,
2. then I just restart the two servers using "pvfs-server /etc/pvfs2-fs.conf"
command)
After executing the two commands , I look up the pvfs2-server.log in
/tmp/pvfs2-server.log after restart the servers , and the contents in it is as
follows :
[D 07/24/2011 12:54:49] PVFS2 Server version
2.8.2-orangefs-experimental-20101012 starting.
[E 07/24/2011 12:54:49] Error: BMI_sockio_bind_sock: Address already in use
[E 07/24/2011 12:54:49] Error: tcp_server_init() failure.
[E 07/24/2011 12:54:49] Error: BMI_initialize: Address already in use
[E 07/24/2011 12:54:49] Error: Could not initialize server interfaces; aborting.
[E 07/24/2011 12:54:49] Error: Could not initialize server; aborting.
[D 07/24/2011 12:55:20] PVFS2 Server version
2.8.2-orangefs-experimental-20101012 starting.
So I want to know what reasons can lead to such errors ?
I also find that , if I start the server in the second time , I can start
the server successfully(just as the last log record shown in the
pvfs2-server.log)
So can you help me ?_______________________________________________
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