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Error 503 - Service Unavailable

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Hello All,

I have been working in XI for years and never got this problem as I have been working with the already installed XI systems.

Now, a new PI system has been installed in my client's server and when I open the IR, ID and runtime workbench there are no problems whatsoever. But when I open the SLD, the Java engine shutsdown immediately and gives the error - 503 service unavailable.

Any idea techies?

Also, when I open the Runtime Workbench, I get a text display instead of the usual graphical display and there is always "error on page" at the bottom of the page.

Are the two issues related in any way and how to solve them?

I have tried increasing the heap size of the Java engine and that doesn't seem to help.

Thanks in advance.


Accepted Solutions (1)

Accepted Solutions (1)

Former Member
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Hi Ramesh,

503 Service unavailable

this is because of the server is currently unable to handle the request due to a temporary overloading or maintenance of the server. The implication is that this is a temporary condition which will be alleviated after some delay. If known, the length of the delay MAY be indicated in a Retry-After header. If no Retry-After is given, the client SHOULD handle the response as it would for a 500 response.

Note: The existence of the 503 status code does not imply that a server must use it when becoming overloaded. Some servers may wish to simply refuse the connection.

you can go for the possible solution as mentioned below:

Because of J2EE application not active

1. Try to (re)start the application using the Visual Administrator Choose Server --> Services --> Deploy --> View on Application or restart the J2EE engine.

2. The problem is that not all J2EE services can be started by the J2EE. i.e Start the Visual Administrator and select Server->Services->Deploy in the tree on the left. On the right-hand side, choose the Runtime tab page. You see a tree in the right window with all applications if you select the APPLICATION radio button. Check if they are running, otherwise choose Start. Usually the J2EE engine starts all services automatically.

3. Refer SAP Note 803145,807000,791655

I hope this will help you.



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Hello Chaitanya and Saurabh,

I am having this problem for a week. I did everything on the Java I could think of like restarting the Engine, starting the services, Cluster restart in SMICM, etc, but nothing seems to help.

The problem is only when I am openning the SLD. SLD opens and then when I try to open IR or ID, the java engine is dean. Its the SLD that is causing the problems.

Any ideas on this please?

Many thanks.

Active Contributor
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whats the status of SLDCHECK??? it seems a service desactive


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Well there are no errors in SLD check, however there is a minor warning to verify in the browser GUI that the SLD is in a healthy running state.

Any ideas on that please?


Answers (1)

Answers (1)

Former Member
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503 Service Unavailable

This code indicates the server is temporarily unable to process the client's request. A server that becomes overloaded may use this code to let the client know that it can retry the request later.

try checking accordingly..