[wildfly-dev] Wildfly start-up as service script depends on console log to determinate start result

Jorge Solórzano jorsol at gmail.com
Fri Jun 12 12:32:24 EDT 2015


It has been considered the use of Java Service Wrapper[1]? it depends on
native binaries but almost all platforms are supported.

[1] http://wrapper.tanukisoftware.com


Jorge Solórzano
http://www.jorsol.com

On Fri, Jun 12, 2015 at 8:27 AM, Brian Stansberry <
brian.stansberry at redhat.com> wrote:

> How does EAP 5 deal with this? IIRC disabling console logging is not
> something new in EAP 6.
>
> On 6/11/15 6:29 PM, Chao Wang wrote:
> > Thanks for your reply. Please see in-line below
> >
> > On 06/11/2015 12:44 AM, Brian Stansberry wrote:
> >> A couple thoughts:
> >>
> >> 1) Looking at wildfly-init-redhat.sh at least, I don't see how that
> >> check is actually testing for successful startup. It looks like it's
> >> just trying to delay start() returning for a while, max 30 secs.
> >>
> >> So, what purpose is this fulfilling?
> > My bad about issue background. It's actually an case in EAP 6 (not yet
> > in wildfly). EAP 6.x script has launched state like:
> >
> https://github.com/jbossas/jboss-eap/blob/6.4.x/build/src/main/resources/bin/init.d/jboss-as-standalone.sh#L110
> > (not in wildfly's script). Also, console log handler has been removed
> > only in EAP full-ha mode long time ago due to performance
> > concern.(wildfly keeps it for the moment). This leads to issue in
> > bz1224170 <https://bugzilla.redhat.com/show_bug.cgi?id=1224170>.
> > That's why I try to seek an better option than current behavior from
> > wildfly.
> >>
> >> 2) How does other software solve this problem? If it's solving a valid
> >> problem, it seems like there would be a typical solution.
> > I have checked some other application servers, most of them let users
> > themselves to write a script to run as service for their OS. Geronimo
> > does provide a script, Although I did damage to its configuration file
> > to make a fatal error, terminal output still displays "Server started".
> > In fact, process does not event exist and detail error can be seen in
> > log file.
> >> On 6/9/15 8:59 AM, Chao Wang wrote:
> >>> Hi all,
> >>>
> >>> The Wildfly start-up as service scripts wildfly-init-redhat.sh and
> >>> wildfly-init-debian.sh currently depend on a grep action of key message
> >>> 'WFLYSRV0025:' in console log to determinate whether service start is
> >>> successful. The log message indication is accurate, however, it's not
> >>> that robust since user can always remove console handler from logging
> >>> subsystem. I have opened a WFCORE enhancement jira
> >>> https://issues.jboss.org/browse/WFCORE-747  for it.
> >>>
> >>> For the moment, I have tried three options, they're all not that
> perfect
> >>> to implement
> >>>
> >>> 1. Stay with exact log message, users need to define their jboss log
> >>> directory such as $JBOSS_HOME/standalone/log/server.log for standalone
> >>> and $JBOSS_HOME/domain/log/host-controller.log for domain instead of
> >>> searching in console log. This is more like another workaround since it
> >>> is also volatile once we update log message in future release.(EAP has
> >>> 'JBAS015874:')
> >>>
> >>> 2. Use service pid, this is not precise because a long start-up can
> >>> crash in the last second. It needs to wait a suitable seconds before
> >>> checking pid existence. and still it can not avoid fake success in rare
> >>> case just before timeout.
> >>>
> >>> 3. Use read-attribute server-state through CLI connection as I did in
> >>> Pull Request on Jira. This is declined as it is possible that
> >>> authentication is required before connection. In such case, any  non
> >>> encrypted password is not advised in configuration files.
> >>>
> >>> Therefore, I would like to listen for your opinions for them. Any other
> >>> suggestion is certainly welcomed in mail or on jira.
> >>>
> >>> Best regards,
> >>>
> >>> Chao
> >>>
> >>>
> >>> _______________________________________________
> >>> wildfly-dev mailing list
> >>> wildfly-dev at lists.jboss.org
> >>> https://lists.jboss.org/mailman/listinfo/wildfly-dev
> >>>
> >>
> >
> > [1] https://bugzilla.redhat.com/show_bug.cgi?id=1224170
> >
> > --
> > Chao Wang
> > Software Engineer
> > JBoss by Red Hat
> >
> >
> >
> > _______________________________________________
> > wildfly-dev mailing list
> > wildfly-dev at lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/wildfly-dev
> >
>
>
> --
> Brian Stansberry
> Senior Principal Software Engineer
> JBoss by Red Hat
> _______________________________________________
> wildfly-dev mailing list
> wildfly-dev at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/wildfly-dev
>
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