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Re: APEX in Oracle XE stopped working

From: Frank van Bortel <frank.van.bortel_at_gmail.com>
Date: Thu, 16 Nov 2006 08:13:02 +0100
Message-ID: <ejfook$o32$1@news5.zwoll1.ov.home.nl>


Martin J. Evans schreef:
> HansF wrote:

>> On Wed, 15 Nov 2006 16:00:56 +0000, Martin J. Evans wrote:
>>
>>> HansF wrote:
>>>> On Wed, 15 Nov 2006 01:37:45 -0800, Martin wrote:
>>>>  
>>>>> The database is running fine - no problems there. Just this problem
>>>>> with apex.
>>>> Generic response here ...
>>>>
>>>> A few possible external factors may stop APEX from running.  You don't
>>>> specify which Linux you are using and that could make a difference 
>>>> as the
>>>> distros have some differences.
>>> Fedora Core release 5 (Bordeaux)
>>>
>>> Oracle 10.2.0.1.0
>>>
>>
>> Thanks.  Fedora series is notable for the infernal SELinux interfereing
>> with Oracle operations.  However, you have verified that SELinux is
>> disabled. 

>
> Good, one ruled out.
>
>>>> Another challenge is DHCP ... the listener & tns lock in the host 
>>>> name at
>>>> install time and DHCP can change the host's IP so that does not 
>>>> always get
>>>> resolved consistently. Similar symptoms from DNS-based resolution 
>>>> instead
>>>> of /etc/hosts
>>> Argh, did not know that. This box is DHCP, currently running with 
>>> 192.168.0.87 and named x.easysoft.local but I cannot absolutely 
>>> guarantee it was exactly the same when oracle was installed although 
>>> we do tie mac addresses to IP addresses and this one is tied.
>>>
>>> Do you know where the "listener and tns lock in the host name at 
>>> install time"?
>>>
>>
>> $ORACLE_HOME/network/admin ... the listeer.ora and tnsnames.ora files.

>
> tnsnames.ora lists a host of x.easysoft.local which is the correct host
> i.e. ip address 192.168.0.87 is x.easysoft.local (on an nslookup) and
> vice versa for reverse dns.
>
> Similarly in listener.ora.
>
>>>> What happens when you try going against the localhost instead of the
>>>> installed host?  http://localhost:8080/apex 
>>> This demonstrates a redirect I think:
>>>
>>> As I said above, without the /apex it shows the oracle license so 
>>> oracle is listening.
>>
>> Yup.  Sorry , I'd glossed over the previous replies and missed that one.
>>
>> This states, in no uncertain terms, that the apex listener is managing 
>> the
>> intercept properly.  That sort-of tells me the port and DHCP stuff is not
>> an issue right now.

>
> Good - another thing ruled out :-)
>
>> Which means that apex itself may have become invalid or corrupt.
>>
>> http://{host}:8080/i should give a list of directories.

>
> It gives me a huge list of gif, css files and some dirs.
>
>> Suggest you register for the Oracle Tech Net (otn) Express
>> database discussion forum and ask there.  I haven't spent any time
>> researching an Apex-only reinstall (as my specialty is the XE baseline
>> install), but a few of the others have gone down this path.
>>
>> Search this forum and the OTN Database-General forum for 'register for 
>> XE'
>>
>>>> Since you can access using sqlplus, what happens when you
>>>> exec sethttpport(8091);
>>>>
>>>> in sqlplus as a DBA, and then try http to that port in your browser.
>>> identifier 'SETHTTPPORT' must be declared
>>>
>>
>> I keep doing that ... it's dbms_xdb.sethttpport() 

>
> ok.
>
>> But ... it's not necessary in this case, as the listener is actualy
>> running properly on the right port.
>>

>
> Thanks for all your help; it has ruled a lot out and I think I'll be in
> a better position to define the problem in your suggested direction of otn.
>
> Martin

Well, something is running there...
Something redirects your localhost:8080/apex to localhost:8080/apex/apex Very anctius to see what localhost:8080:/apex/i results into. Also: a trailing slash may resolve the issue, simply: localhost:8080/apex/
-- 
Regards,
Frank van Bortel

Top-posting is one way to shut me up...
Received on Thu Nov 16 2006 - 01:13:02 CST

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