Http Error 504 Gateway Timeout On Iphone
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you, helping each other. Join them; it only takes a minute: Sign up Mobile Devices get HTTP 504 Error up vote 1 down vote favorite I am trying to debug why a mobile device trying to connect to
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my embedded web server is getting a "HTTP 504 Error: Gateway timeout". A PC can connect just fine, it's just the Blackberries and mobile phones that get this error. What does a 504 error mean? What can I do about it? iphone http blackberry embedded share|improve this question asked Aug 24 '09 at 15:12 Robert 6,388164870 add a comment| 2 Answers 2 active oldest votes up vote 1 down vote accepted HTTP status code 504 means 504 gateway timeout php that your webserver got a timeout. This message might be caused because of a slow router/gateway of your service provider, but it is also possible that your embedded webserver reacts to slow for your phones (or vice versa, even though this is very unlikely). You might want to try connecting with your phone(s) to your webserver using a wlan-connection instead of 3G to see if this problem consist. Sort of EDIT: You might consider implementing debugging output to your webserver. Also it could be useful to make the timeout-parameters configurable. share|improve this answer edited Mar 6 '13 at 12:32 Tim Cooper 87k21162181 answered Aug 24 '09 at 15:45 flokra 9,54642019 add a comment| up vote 0 down vote No, 504 doesn't mean that your webserver timed out. It means that an intermediate proxy timed out while waiting for the origin server to complete the request. "The server, while acting as a gateway or proxy, did not receive a timely response from the upstream server specified by the URI." (http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.5.5) It most likely indicates that the origin server is having some sort of issue, so it's not responding quickly to the forwarded request. Possible solutions: Find out what proxy is used to handle Blackberry requests; increase its timeout value. Check to see if the proxy is altering your request in any way; since a PC
URL. This server did not receive a timely response from an upstream server it accessed to deal with your HTTP request. This usually means that the upstream server is down (no response 504 gateway timeout aws to the gateway/proxy), rather than that the upstream server and the gateway/proxy do not agree 504 gateway timeout wordpress on the protocol for exchanging data. Fixing 504 errors - general This problem is entirely due to slow IP communication between back-end error 504 android computers, possibly including the Web server. Only the people who set up the network at the site which hosts the Web server can fix this problem. Fixing 504 errors - CheckUpDown Use of proxies and caching is http://stackoverflow.com/questions/1322980/mobile-devices-get-http-504-error increasing on the Web. Our CheckUpDown robot will always try to 'drill through' to the real computer that actually hosts the Web site, but we do not have complete control over where our HTTP request actually ends up. If only one link in the chain of computers dealing with our HTTP request is broken, then an error such as 504 can easily occur. Please contact us (email preferred) whenever you encounter 504 errors http://www.checkupdown.com/status/E504.html - there is nothing you can do to sort them out. We then have to liaise with your ISP and the vendor of the Web server software so that they can review the flow of IP data traffic between various computers under their control. However this is not an easy error to sort out, because the ebb and flow of Internet traffic makes this type of error very transient. 504 errors in the HTTP cycle Any client (e.g. your Web browser or our CheckUpDown robot) goes through the following cycle when it communicates with the Web server: Obtain an IP address from the IP name of the site (the site URL without the leading 'http://'). This lookup (conversion of IP name to IP address) is provided by domain name servers (DNSs). Open an IP socket connection to that IP address. Write an HTTP data stream through that socket. Receive an HTTP data stream back from the Web server in response. This data stream contains status codes whose values are determined by the HTTP protocol. Parse this data stream for status codes and other useful information. This error occurs in the final step above when the client receives an HTTP status code that it recognises as '504'. Our company also owns these other Web sites: A simple guide to s
7 Comments I knew something was seriously amiss with one of my blogs when only a paltry 17 messages showed up during the morning email check. So, I checked my sites http://rosalindgardner.com/blog/10-things-to-do-during-a-504-gateway-timeout/ and sure enough, the sites hosted on one of my servers were showing a 504 Gateway Timeout error. A 504 error usually means that a server upstream from yours that http://www.getnetgoing.com/HTTP-504.html is acting as a gateway to handle the HTTP request is either down or too slow to fulfill the request. Unfortunately, there is nothing you can do to solve a 504 gateway 504 gateway timeout problem. It has to be dealt with by the techies at the ISP that hosts the errant web server. The following is a list of my recommended responses to such a problem. Know that ‘stuff' happens and remain calm. The outage may last only a minute or two, so there's no need to get stressed out. Do your 504 gateway timeout best to avoid visions of bankruptcy court and bag ladies. Assess the HTTP error. Here's a good list of HTTP status codes, with explanations. Shut down applicable PPC (pay-per-click campaigns. Every click that goes to a site that isn't online is a waste of money. Refrain from wondering how long your site has been down or thinking about how much money you've just flushed down the drain. Contact your webmaster or ISP immediately and explain the problem CONCISELY. There's no need to tell them that you were in the middle of enjoying a delicious breakfast of ham and eggs when ESP told you that things with your site were awry. If your hosting service or webmaster does not allow phone support and takes more than 10 minutes to respond to an URGENT request, it is high time you used a better hosting service. I recommend BlueHost and Hostgator. Twiddle your thumbs while you think of what to do next. Post to social networking sites. Release whatever angst you feel by posting about your situation to your Twitter and Facebook accounts
web browser and a web server that you want to access (e.g. in your ISP) and the gateway experienced a time-out while waiting for a response from either the server that you are trying to access, or from an auxiliary server (e.g. a name server). Outline: Symptoms Cause What you can do about it Extra information Footnotes Symptoms Microsoft Windows Update reports HTTP 504 status codes with error code 0x80244023 (hexadecimal 80244023). Apache servers report this as: Gateway Time-out The proxy server did not receive a timely response from the upstream server. (A footnote2 expands on the meaning of “upstream”) Cause The official description of what causes the HTTP 504 status code is: “The server, while acting as a gateway or proxy, did not receive a timely response from the upstream2 server specified by the URI (e.g. HTTP, FTP, LDAP) or some other auxiliary server (e.g. DNS) it needed to access in attempting to complete the request.” In that description, “URI” can be interpreted as “URL” (Uniform Resource Identifiers that also indicate the Location of the resource), “HTTP, FTP, LDAP” are protocols used for accessing resources, and “DNS” is the Domain Name System that is used to translate names (e.g. www.example.com) into addresses that are used for communication. What you can do about it Try accessing the website through a (different) proxy. If the problem was particular to the gateway/proxy that you accessing the site through, then using a (different) proxy may3 allow you to bypass the earlier gateway/proxy. These errors often arise because the proxy failed to resolve a domain name into an address. It might succeed if you try again, or if you can resolve the name (while the proxy can't, e.g. because it uses different name servers) then you might be able to access the server through its IP address. If the problem is with the website that you are trying to access, then monitor it to determine when it returns to service. Extra information This is the gateway equivalent of the DNS/TCP errors that can occur a server that you try to access directly (without a gateway) does not respond in a timely manner, e.g. leading to the error Internet Explorer cannot display the webpage. An alternative symptom of a proxy DNS timeout is a HTTP 400 error. HTTP error 408 occurs in the complementary situation of a downstream server timing out while waiting for information from an upstream device (e.g. a web browser).