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Re: [Ftpapi] SetError() #2: Host name look up failed



Hello again,

I read this somewhere in the archive.
Created EXAMPLE1 using www.yahoo.com. Figured it was better to DOS yahoo than Scott's server ;)

Created a second program that called that one 1000 times in a loop.
Ran fine. No errors.

Changed the program into a module, took off LR and replaced with return. CALLP for 1000 times in a loop.
Ran fine. No errors.

And this from the internet

As a rule, never seton LR when a program will be called multiple times.  This rule most definitely applied to a trigger program that could be called hundreds or possibly thousands of times.


My program will be called a lot of times, does it mean I cannot make use of 

*inlr = *on;


This is how my program ends

*inlr = *on;     
return;          

On Monday, 28 September 2020, 08:56:45 am GMT+8, she lumbera <she_lumbera@xxxxxxxxx> wrote:



Hello Brad,

It seems the issue is intermittent. After processing a lot of records already, the first few will be successful and then the others will fall into this error. Do you know if I need to initialize headers or anything? 

Thanks.
On Saturday, 26 September 2020, 12:21:03 am GMT+8, Brad Stone <bvstone@xxxxxxxxx> wrote:


Ask your network admin what DNS servers you should be using, then double check they are specified in CFGTCP option 12 in the DNS servers section.

You won't always get a response on the PING, but it should show it resolves to an IP address in the job log.

Someone may have also set up a host table entry for one of the host names.  Big no no.



On Fri, Sep 25, 2020 at 10:10 AM she lumbera <she_lumbera@xxxxxxxxx> wrote:
Hello Brad,

Even if I connect to 2 different URLs, it should be using the same DNS right? 

Not sure, if it is our network configuration but I cannot ping both in the command line although I can see based on the logs and the output that we are able to connect to URL1.

On Friday, 25 September 2020, 10:56:01 pm GMT+8, Brad Stone <bvstone@xxxxxxxxx> wrote:


Ping the hose name from the command line.  And double check it's right.  Then double check the DNS servers listed in CFGTCP option 12.



On Fri, Sep 25, 2020 at 9:47 AM she lumbera <she_lumbera@xxxxxxxxx> wrote:
Hello,

I hope anyone can help me.

We have been accessing 2 URLs using HTTPAPI. We are getting successful message from the first URL but are getting Error #2 on the 2nd. I have been reading similar issues in the archive and one of which is pointing to the DNS resolver. In my case, it couldn't be the cause as we are using the same machine. Can anyone give me an idea what to look for or to check to solve the issue?

URL1 log
======
2020-09-25-15.11.00.233000: http_persist_open(): entered                 
2020-09-25-15.11.00.244000: http_long_ParseURL(): entered                
2020-09-25-15.11.00.253000: DNS resolver retrans: 2                      
2020-09-25-15.11.00.253000: DNS resolver retry  : 2                      
2020-09-25-15.11.00.253000: DNS resolver options: x'00000136'            
2020-09-25-15.11.00.257000: DNS default domain: XXXX.XX              
2020-09-25-15.11.00.258000: DNS server found: XXX.XX.XXX.X               
2020-09-25-15.11.00.258000: DNS server found: XXX.XX.XXX.X            
2020-09-25-15.11.00.320000: Nagle's algorithm (TCP_NODELAY) disabled.    
2020-09-25-15.11.00.781000: SetError() £13: HTTP/1.1 201 Created 
2020-09-25-15.11.00.781000: http_close(): entered                


URL2 log
=======
2020-09-25-15.25.49.562000: http_persist_open(): entered             
2020-09-25-15.25.49.569000: http_long_ParseURL(): entered            
2020-09-25-15.25.49.569000: DNS resolver retrans: 2                  
2020-09-25-15.25.49.569000: DNS resolver retry  : 2                  
2020-09-25-15.25.49.569000: DNS resolver options: x'00000136'        
2020-09-25-15.25.49.569000: DNS default domain: XXXX.XX           
2020-09-25-15.25.49.569000: DNS server found: XXX.XX.XXX.X           
2020-09-25-15.25.49.569000: DNS server found: XXX.XX.XXX.X          
2020-09-25-15.25.49.569000: SetError() #2: Host name look up failed. 
2020-09-25-15.25.49.569000: http_close(): entered                    

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