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Delay in updating content at public links
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Bob Oliver Bigellow XLII  
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 More options May 27 2011, 12:42 pm
From: Bob Oliver Bigellow XLII <iam...@gmail.com>
Date: Fri, 27 May 2011 09:42:37 -0700 (PDT)
Local: Fri, May 27 2011 12:42 pm
Subject: Delay in updating content at public links

We have a number of files which are available publicly by the public link...

http://commondatastorage.googleapis.com..........

Originally, when one of these files was updated, it would almost
instantaneously be reflected at that link. However, lately, it can take 5
minutes... 10 minutes sometimes 15 minutes or more before the changes are
reflected. The files are uploaded via the web-based Google Storage Manager.

If the file is accessed via the Google Storage Manager (private) link...

https://doc-123abc-456def-s-googleusercontent.commondatastorage.googl.............

It shows the most recent content... but visiting the public link...

http://commondatastorage.googleapis.com..........

Always returns the old file... even with refreshes... until 5-15 minutes
later or more.

We've tried disabling the public link, then re-enabling it, to try to
"force" this content to be updated sooner... doesn't seem to help.

Is this an intentional design change, or is this a problem that needs to be
looked into?


 
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Navneet (Google)  
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 More options May 27 2011, 12:44 pm
From: "Navneet (Google)" <gs-t...@google.com>
Date: Fri, 27 May 2011 09:44:51 -0700
Local: Fri, May 27 2011 12:44 pm
Subject: Re: [gs-discussion] Delay in updating content at public links

Can you look at the response headers and see if there's a Cache-Control: or
Expires: header?

On Fri, May 27, 2011 at 9:42 AM, Bob Oliver Bigellow XLII
<iam...@gmail.com>wrote:


 
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Bob Oliver Bigellow XLII  
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 More options May 27 2011, 12:49 pm
From: Bob Oliver Bigellow XLII <iam...@gmail.com>
Date: Fri, 27 May 2011 09:49:25 -0700 (PDT)
Local: Fri, May 27 2011 12:49 pm
Subject: Re: [gs-discussion] Delay in updating content at public links

Yes.

Cache-Control: public, max-age=3600


 
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Bob Oliver Bigellow XLII  
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 More options May 27 2011, 12:52 pm
From: Bob Oliver Bigellow XLII <iam...@gmail.com>
Date: Fri, 27 May 2011 09:52:07 -0700 (PDT)
Local: Fri, May 27 2011 12:52 pm
Subject: Re: [gs-discussion] Delay in updating content at public links

And...

Expires: Fri, 27 May 2011 17:46:27 GMT

The file was uploaded via the web-based Google Storage Manager and was
replaced (with an upload) via the web-based Google Storage Manager. Ideally,
if there are any other configuration settings for the file that need to be
tweaked, that it can be done so via the web-based Google Storage Manager. If
this isn't possible at this time, no biggie... we'll code that... but I'm
just wondering if this is expected behavior.


 
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Bob Oliver Bigellow XLII  
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 More options May 27 2011, 12:55 pm
From: Bob Oliver Bigellow XLII <iam...@gmail.com>
Date: Fri, 27 May 2011 09:55:02 -0700 (PDT)
Local: Fri, May 27 2011 12:55 pm
Subject: Re: [gs-discussion] Delay in updating content at public links

I should also clarify... the file with that particular expiration value has
since refreshed, but it was uploaded approximately 1/2 hour ago and took
more than 10 minutes to be refreshed.


 
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Navneet (Google)  
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 More options May 27 2011, 1:05 pm
From: "Navneet (Google)" <gs-t...@google.com>
Date: Fri, 27 May 2011 10:05:29 -0700
Local: Fri, May 27 2011 1:05 pm
Subject: Re: [gs-discussion] Delay in updating content at public links

Yes, that's the default cache header we add when you use the Google Storage
Manager for data. There isn't a way to override that today, but if you use
gsutil, you should be able to specify your own value (or none at all).

- Navneet

On Fri, May 27, 2011 at 9:49 AM, Bob Oliver Bigellow XLII
<iam...@gmail.com>wrote:


 
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Bob Oliver Bigellow XLII  
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 More options May 27 2011, 1:07 pm
From: Bob Oliver Bigellow XLII <iam...@gmail.com>
Date: Fri, 27 May 2011 10:07:05 -0700 (PDT)
Local: Fri, May 27 2011 1:07 pm
Subject: Re: [gs-discussion] Delay in updating content at public links

Gotcha. Thanks for clarifying.


 
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