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Overview Publications Software

L-Bone FAQ

LoCI FAQ (Frequently Asked Questions)



Category: Main -> L-Bone FAQ

Question
·  Why does the L-Bone server not return any depots?
·  What are the current L-Bone servers?
·  Why did the L-Bone server return an unresponsive depot?
·  If I pass the same query twice consecutively, will I get the same results?
·  How long should I set the timeout in the API?
·  Are the client API calls thread-safe?
·  Is the current API IPv6 compatible?
·  I've just added a new depot. When I check its status on the website, it is always: "Depot Did Not Respond Displaying Cached Information". However, the "LBone Depot List" webpage says the depot is avaiable. Why?
·  Will my firewall on my depot interfere with the LBone depot status verification?

Answer
·  Why does the L-Bone server not return any depots?

Usually, someone has asked for too much time (duration of 30 days, for example) when most depots only allow 1-2 day allocations. Also, asking for too much space will be a problem. Lastly, the server that you tried may be down. If so, try another.

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·  What are the current L-Bone servers?

vertex.cs.utk.edu:6767

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·  Why did the L-Bone server return an unresponsive depot?

The current client API returns depots that match space and time constraints, but they may not be available. The user should always check the depots and request more, if needed.

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·  If I pass the same query twice consecutively, will I get the same results?

Usually. If you pass the same exact query AND you are using a valid location string, you will get the same results (unless some of the depots' available storage space has changed). If you use an invalid location string or you leave it blank (NULL), then a random set of depots is returned and they will vary on each call.

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·  How long should I set the timeout in the API?

You will need to test this for your location, but we typically use between 10-30 seconds.

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·  Are the client API calls thread-safe?

Yes, except for the call to gethostbyname().

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·  Is the current API IPv6 compatible?

Not yet. We will update it soon.

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·  I've just added a new depot. When I check its status on the website, it is always: "Depot Did Not Respond Displaying Cached Information". However, the "LBONE Depot List" webpage says the depot is available. Why?

The summary page uses the results of the last hourly poll. A failure of a depot to reply to the hourly poll or a "Check Status" call may be due to the depot being busy or down or network congestion. It may be that if you try again, the depot will respond.

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·   Will my firewall on my depot interfere with the LBone depot status verification?

The L-Bone uses the IBP_status() call which is part of the IBP API. If the depot can be reached from outside the firewall, i.e. the depot's port is open, then the L-Bone server should be able to check the depot's status.

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