2013/4/2 Angus Salkeld <asalkeld@redhat.com>
On 02/04/13 10:57 +0400, eXeC001er wrote:
2013/4/2 Angus Salkeld <asalkeld@redhat.com>

On 29/03/13 01:13 +0400, eXeC001er wrote:

Hello.

This Q is crosspost from openais-maillist.

I use corosync-2.3.0, libqb-0.14.4 on OpenIndiana:

I tried to create an application that uses corosync via its libraries, but
it seems something wrong.
On the machine where i debug corosync-tests work fine, but my application
does not work. The application cannot intialize CMAP connection (same with
VOTEQUORUM).
"*_initialize" function returned CS_ERR_NOT_EXIST error. on server side i
see "Error in connection setup (7104-7367-0): Broken pipe (32)".

My appliacation is multi-thread and "*_initialize" is called not in main
thread.


Well, I suggest you keep it simple initially.
Do the standard corosync apps work ok?
like:
./tests/testcpg


yes. all tests from test directory of corosync sources work fine.

Well then there is no reason why other apps should not work.
Just have a look at how they are written.

Do not forget that tests are single-thread app. 
My app is multi-thread and initialization not in main-thread. if i do initialization in main-thread then everything fine.


 




It would be good to try narrow down what is failing.



the stack-trace:

/3@3:   -> libvotequorum:votequorum_**initialize(0x8834b2c, 0x0, 0x0,

0xfea63855)
/2: nanosleep(0xFE99BF48, 0x00000000)       = 0
/3@3:     -> libqb:qb_hdb_handle_create()
/3@3:     <- libqb:qb_hdb_handle_create() = 0
/3@3:     -> libcorosync_common:hdb_error_**to_cs()
/3@3:     <- libcorosync_common:hdb_error_**to_cs() = 1

/3@3:     -> libqb:qb_hdb_handle_get()
/3@3:     <- libqb:qb_hdb_handle_get() = 0
/3@3:     -> libcorosync_common:hdb_error_**to_cs()
/3@3:     <- libcorosync_common:hdb_error_**to_cs() = 1

/3@3:     -> libqb:qb_ipcc_connect()
/3: so_socket(PF_UNIX, SOCK_STREAM, 0, 0x00000000, SOV_DEFAULT) = 8
/3: fcntl(8, F_GETFD, 0x00000000)           = 0
/3: fcntl(8, F_SETFD, 0x00000001)           = 0
/3: fcntl(8, F_SETFL, FNONBLOCK)            = 0
/3: connect(8, 0xFE67C13A, 21, SOV_DEFAULT)     = 0
/3: sigaction(SIGPIPE, 0xFE67C0E0, 0xFE67C140)  = 0
/3: send(8, "FFFFFFFF\0\0\0\018\0\0\0".., 24, 0)    = 24
/3: sigaction(SIGPIPE, 0xFE67C0E0, 0x00000000)  = 0
/3: sigaction(SIGPIPE, 0xFE67C0D0, 0xFE67C130)  = 0
/3: recv(8, 0xFE67C210, 3112, 64)           Err#11 EAGAIN


this ^ is the client returngin EAGAIN on the socket...
the problem is probably on the server.


on server side i also see strange case:

if i try to run a corosync-* tool, then the tool returned required info,
but on server side i see "File not found" error. I see that the corosync
daemon tries to do something with /proc/<client_pid> file:

an example:

......... [QB    ] recv from client connection failed (10656-12155-22): No
such file or directory (2)


I don't think this is a problem, oindiana/solaris sockets behave a bit
differently to linux ones and the path to finding a disconnection are
just a bit different. I think this is just using the wrong errno.

The "/proc/<pid>/" access is also fine, it tries on each connection
to resolve the process name, and if it can't just uses the pid.





 /3: sigaction(SIGPIPE, 0xFE67C0D0, 0x00000000)  = 0
/3: shutdown(8, SHUT_RDWR, SOV_DEFAULT)     = 0
/3: close(8)                    = 0
/3@3:     <- libqb:qb_ipcc_connect() = 0
/3@3:     -> libcorosync_common:qb_to_cs_**error()
/3@3:     <- libcorosync_common:qb_to_cs_**error() = 12
/3@3:     -> libqb:qb_hdb_handle_put(**0xfe9f3070, 0x0, 0xb86775,

0xfe67ce7c)
/3@3:     <- libqb:qb_hdb_handle_put() = 0
/3@3:     -> libqb:qb_hdb_handle_destroy(**0xfe9f3070, 0x0, 0xb86775,

0x0)
/3@3:       -> libqb:qb_ipcc_disconnect(0x0, 0x8835b88, 0x0, 0x1)
/3@3:       <- libqb:qb_ipcc_disconnect() = 0
/3@3:     <- libqb:qb_hdb_handle_destroy() = 0
/3@3:   <- libvotequorum:votequorum_**initialize() = 12


As you can see it returns CS_ERR_NOT_EXIST.

same behaviour with CMAP and another services.

Any ideas?


Can you turn on debug in corosync.conf and to_stderr
logging {
to_stderr: yes
debug: on
}
and run corosync like this:
"sudo corosync -f"

then in another window run:
./tests/testcpg

then type a couple of words (any junk) - testcpg should send what ever
is typed to corosync. Then Ctrl-C to end.

Can you send the contents of both shells so I can see what both the
client and server are doing?


CLIENT:

$ sudo ./testcpg
Type EXIT to finish
Local node id is ac12fe0a
membership list
nza4-devel:20446 2013-04-02 10:43:38.902
ConfchgCallback: group 'GROUP'
Local node id is 10.254.18.172/ac12fe0a result 1
joined node/pid -1408041462/20446 reason: 1
nodes in group now 1
node/pid -1408041462/20446

nza4-devel:20446 2013-04-02 10:43:38.904
TotemConfchgCallback: ringid (2886925834.156)
active processors 1: -1408041462
param param param param
nza4-devel:20446 2013-04-02 10:44:07.682
DeliverCallback: message (len=25)from node/pid -1408041462/20446: 'param
param param param
'


SERVER:

see attached file or http://pastie.org/7276133


I do have access to a oindiana machine if you have a test app that
fails can you send it?

will try later. 
 

-Angus



-Angus

 Thanks.


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