Re: [Sqlrelay-discussion] Listener crash on Linux64

[Adrian-Cristian G. <adr...@gm...>]

I use strace and ltrace, maybe you can we this:
It crash in function detach():

In /sqlrelay-0.40/src/listener/sqlrlistener.C
bool sqlrlistener::initListener(int argc, const char **argv) {

        init=true;

        cmdl=new cmdline(argc,argv);

        tempdir         tmpdir(cmdl);

        if (!cfgfl.parse(cmdl->getConfig(),cmdl->getId())) {
                return false;
        }

        setUserAndGroup();

        if (!verifyAccessToConfigFile(cmdl->getConfig())) {
                return false;
        }

        dbgfile.init("listener",cmdl->getLocalStateDir());
        if (cmdl->found("-debug")) {
                dbgfile.enable();
        }

        if (!handlePidFile(&tmpdir,cmdl->getId())) {
                return false;
        }

        handleDynamicScaling();

        setHandoffMethod();

        if (cfgfl.getAuthOnListener()) {
                authc=new authenticator(&cfgfl);
        }

        setIpPermissions();

        if (!createSharedMemoryAndSemaphores(&tmpdir,cmdl->getId())) {
                return false;
        }

        if ((passdescriptor=cfgfl.getPassDescriptor())) {
                if (!listenOnHandoffSocket(&tmpdir,cmdl->getId())) {
                        return false;
                }
                if (!listenOnDeregistrationSocket(&tmpdir,cmdl->getId())) {
                        return false;
                }
                if (!listenOnFixupSocket(&tmpdir,cmdl->getId())) {
                        return false;
                }
        }

        idleclienttimeout=cfgfl.getIdleClientTimeout();
        maxquerysize=cfgfl.getMaxQuerySize();
        maxlisteners=cfgfl.getMaxListeners();
        listenertimeout=cfgfl.getListenerTimeout();

        detach();

        createPidFile(pidfile,permissions::ownerReadWrite());

        return true;
}

The function detach() is defined here:
/rudiments-0.32/src/daemonprocess.C:

bool daemonprocess::detach() const {

        // fork off a child process
        int     result;
        do {
                result=fork();
        } while (result==-1 && error::getErrorNumber()==EINTR);

        if (result==-1) {
                return false;
        }

        // let the parent process exit
        if (result) {
                // cygwin needs a sleep or both processes will exit
                #ifdef __CYGWIN__
                snooze::macrosnooze(1);
                #endif
                _exit(0);
        }

        // become process group and session group leader
        // with no controlling terminal
        setsid();

        // change directory to root to avoid keeping any directories in use
        do {} while (chdir("/")==-1 && error::getErrorNumber()==EINTR);

        // Set umask such that files are created 666 and directories 777.
        // This way we can change them to whatever we like using chmod().
        // We want to avoid inheriting a umask which wouldn't give us write
        // permissions to files we create.
        umask(0);

        return true;
}

which is implemented with fork()

Fron listener.str(strace):
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD,
child_tidptr=0x2adc653e82e0) = 9760
exit_group(0)

Thank you in advance!

On Mon, Mar 2, 2009 at 5:31 PM, Adrian-Cristian Grigoras <
adr...@gm...> wrote:

> Hi,
> I need to run sqlrelay on a RHEL 5 on 64 bits. I use sqlrelay 0.4. It
> starts the listener, but the listener crashes when I execute :
> /usr/local/firstworks/bin/sqlrsh -id oratest
>
> I receive thie error: Authentification failed.
>
> I set up the authentier to: listener, connection and database, but with no
> luck.
>
> How to resolve this? Does version 0.39.4 work on Linux64 or has the same
> problems? I saw that the problem with listener in happening in version 0.40.
>
> Thank you in advance!
>