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Hello. I have a problem with a Tiny Tiny RSS / Hiawatha installation. Access speed via http is fast. But via API (https://tt-rss.org/redmine/projects/tt-rss/wiki/JsonApiReference) it is extremely slow. I tried the same with nginx --> access speed via API is fast as http. Does anyone have any idea why this might be?

Maybe this is helpful? access.log while access via API:

192.168.1.254|Thu 02 Apr 2015 21:47:29 +0200|200|477||POST /api/ HTTP/1.1|Accept: application/json|Content-Length: 52|Accept-Encoding: identity|Content-Type: application/json; charset=UTF-8|User-Agent: NativeHost|Host: xxx.xxx.xx|Connection: keep-alive|Cache-Control: no-cache
192.168.1.254|Thu 02 Apr 2015 21:47:29 +0200|200|477||POST /api/ HTTP/1.1|Accept: application/json|Content-Length: 52|Accept-Encoding: identity|Content-Type: application/json; charset=UTF-8|User-Agent: NativeHost|Host: xxx.xxx.xx|Connection: keep-alive|Cache-Control: no-cache
192.168.1.254|Thu 02 Apr 2015 21:48:00 +0200|200|511||POST /api/ HTTP/1.1|Accept: application/json|Content-Length: 53|Accept-Encoding: identity|Content-Type: application/json; charset=UTF-8|User-Agent: NativeHost|Host: xxx.xxx.xx|Connection: keep-alive|Cache-Control: no-cache
192.168.1.254|Thu 02 Apr 2015 21:48:00 +0200|200|511||POST /api/ HTTP/1.1|Accept: application/json|Content-Length: 53|Accept-Encoding: identity|Content-Type: application/json; charset=UTF-8|User-Agent: NativeHost|Host: xxx.xxx.xx|Connection: keep-alive|Cache-Control: no-cache
192.168.1.254|Thu 02 Apr 2015 21:48:31 +0200|200|2155||POST /api/ HTTP/1.1|Accept: application/json|Content-Length: 55|Accept-Encoding: identity|Content-Type: application/json; charset=UTF-8|User-Agent: NativeHost|Host: xxx.xxx.xx|Connection: keep-alive|Cache-Control: no-cache
192.168.1.254|Thu 02 Apr 2015 21:49:03 +0200|200|2155||POST /api/ HTTP/1.1|Accept: application/json|Content-Length: 55|Accept-Encoding: identity|Content-Type: application/json; charset=UTF-8|User-Agent: NativeHost|Host: xxx.xxx.xx|Connection: keep-alive|Cache-Control: no-cache
192.168.1.254|Thu 02 Apr 2015 21:49:34 +0200|200|4072||POST /api/ HTTP/1.1|Accept: application/json|Content-Length: 84|Accept-Encoding: identity|Content-Type: application/json; charset=UTF-8|User-Agent: NativeHost|Host: xxx.xxx.xx|Connection: keep-alive|Cache-Control: no-cache
192.168.1.254|Thu 02 Apr 2015 21:50:05 +0200|200|929||POST /api/ HTTP/1.1|Accept: application/json|Content-Length: 120|Accept-Encoding: identity|Content-Type: application/json; charset=UTF-8|User-Agent: NativeHost|Host: xxx.xxx.xx|Connection: keep-alive|Cache-Control: no-cache
192.168.1.254|Thu 02 Apr 2015 21:50:36 +0200|404|850||GET /feed-icons/13.ico HTTP/1.1|Accept: */*|Accept-Language: de-CH|UA-CPU: ARM|Accept-Encoding: gzip, deflate|User-Agent: Mozilla/5.0 (Windows Phone 8.1; ARM; Trident/7.0; Touch; rv:11.0; IEMobile/11.0; NOKIA; Lumia 1520) like Gecko|Host: xxx.xxx.xx|Connection: keep-alive

error.log is clean.

I have no idea. It must be an application internal issue. You better consult the author of Tiny Tiny RSS.

Hello Hugo, thanks for your feedback. I will ask in the tt-rss forum.
Regards, Stefan

Hello Hugo

No chance to get help in the TT-RSS forum. May I ask you to look at the problem a little closer?
I've done a few more tests. No matter which PHP backend, CGI or FastCGI, Hiawatha current version or an older (included in Puppy Linux): there is always a delay of about 30 seconds until the download is complete (answer from the API call). Could that have a similar cause like here [www.hiawatha-webserver.org]?
In fact, the problem only occurs with Hiawatha. With nginx (with the same PHP backend) and Apache (Ubuntu LAMP) the problem does not occur.

Regards, Stefan

I've seen your post at the TT-RSS forum. This fox dude is an immature loser if you ask me. I'll take a look at it within a few days, just need to find some time. I'll get back to you when I have.

The problem is caused by the header() call at line 71 in api/index.php. Hiawatha incorrectly sees this as a "Content-Length" header. Comment that line as a work-around. It will be fixed in the next Hiawatha release.

Hugo, you're faster than light! The workaround is working fine. Thank you very much for your time. And on this occasion I would like to thank for your wonderful Hiawatha.
Regards, Stefan

You're welcome!