Re: How to disable http v2

On Tue, 7 Jun 2022 at 14:15, Sergey Kandaurov wrote: > > On 7 Jun 2022, at 13:41, Peter Volkov wrote: > > After we enabled HTTP/2 in nginx some old software started to fail. So > we would like to have HTTP v2 enabled in general but disabled for some > specific IP:PORT. I&#

How to disable http v2

both ports I see: * ALPN: offers h2. Is it possible to disable HTTP v2 for specific IP:PORT? Thanks in advance, -- Peter. ___ nginx mailing list -- nginx@nginx.org To unsubscribe send an email to nginx-le...@nginx.org

Re: nginx error pages and CORS

Hi, any ideas here? -- Peter. On Wed, Oct 13, 2021 at 1:12 PM Peter Volkov wrote: > Hi. > > We use Nginx as a reverse proxy for our service that manages CORS by > itself. Yet we have problems with errors that Nginx generates itself, e.g. > 413 Request Entity Too Large. Such err

nginx error pages and CORS

the real reason for this problem. So we would like to add permissive CORS headers to all error pages that Nginx generates. Does there exist such a list of error codes that Nginx generates? Like wrong headers, bad requests, whatever? Thanks in advance for your help, -- Peter

Re: why nginx is not compressing reply from proxied server?

Err, After few hours of debugging, and writing email here, I've realised that I have `gzip off;` in http {} block of configuration. After enabling gzip in http block everything works fine. Is it correct behaviour that no warning is issued with such configuration? -- Peter. On Tue, May 11,

why nginx is not compressing reply from proxied server?

close after body < HTTP/1.0 200 OK < Server: UDP to HTTP tool with smart buffering < Accept-Ranges: none < Content-type: application/octet-stream < Cache-Control: no-cache Thanks in advance for any help, -- Peter. ___ nginx mailing list nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx

Re: least_conn not working for me

From a shell on your nginx host you can run something like netstat -ant | egrep “ESTAB” to see all the open TCP connections. If you run your command line with watch you will see it update each two seconds, etc .. FWIW A long time ago I did a bunch of experiments with different load balancer str

Re: Nginx proxy_bind failing

Gary, This was interesting to read. There was one thing that wasn’t obvious to me however. What was the high level problem that you were solving with this specific configuration? Curiously Peter Sent from my iPhone > On Oct 30, 2020, at 3:16 PM, garyc...@yahoo.com > wrote: >

Re: Is this an attack or a normal request?

for your business. Peter > On Aug 24, 2020, at 2:54 PM, lists wrote: > > I can't find it, but someone wrote a script to decode that style of hacking. > For the hacks I was decoding, they were RDP hack attempts. The hackers just > "spray" their attacks. Often t

Re: Nginx pre-configured test environment with all scenarios

Why are you doing an nginx POC? To be blunt, nginx is the most powerful, flexible web server/reverse proxy/application delivery software product that exists. If it has an obvious competitor it’s the F5 BigIP LTM/WAF device - and F5 owns nginx. So what does this mean? It means that if you don’t

Re: Per IP bandwidth limit

Why do you want to do this at all? What is the real underlying problem that you are attempting to solve? > On Nov 11, 2019, at 8:29 AM, Kostya Velychkovsky > wrote: > > I use Linux, and had a bad experience with Linux shaper (native kernel QoS > mechanism - tc ), it consumed a lot of CPU an

Re: Odd behavior

Is your web server on the internet? If so then see what redbot shows. It’s an amazing tool to debug nuanced http issues Sent from my iPhone > On Oct 9, 2019, at 1:52 AM, Ken Wright wrote: > > Sorry to be taking up so much bandwidth lately, but I'm seeing some > weird behavior from nginx. > >

Re: Resident memory not released

I’m wondering if you are overthinking this. You said that the memory was reused when the workload increased again. Linux memory management is unintuitive. What would happen if you used a different metric, say # active connections, as your autoscaling metric? It sounds like this would behave “bet

Re: Nginx request processing is slow when logging disabled

I’d suggest that you use wrk2, httperf, ab or similar to run a synthetic test. Can your site handle one request every five seconds? One request every second? Five every second? ... is your backend configured to log service times? Is your nginx configured to log service times? What do you see? By

Using GeoIP2

Hi All, I had GeoIP work on nginx 1.14.x. I upgrade to nginx 1.16.x and the whole thing broke so I decided to just upgrade to GeoIP2. I have the following below in nginx.conf which I saw on the nginx page. load_module "/usr/local/libexec/nginx/ngx_http_geoip2_module.so"; load_module "/usr/local/

Re: HTTPS Pinning

Andreas, Do you know of any large, high traffic sites that are using HSTS today? Peter > On Jun 5, 2019, at 12:56 PM, A. Schulze wrote: > > > > Am 05.06.19 um 14:54 schrieb Sathish Kumar: >> Hi Team, >> >> We would like to fix the HTTPS pinning vuln

Re: Capture clear text with Nginx reverse proxy

Mik, I’m not going to get into the openbsd question, but I can tell you some of the different things that I have done to solve this kind of problem in the past. Your environmental constraints will impact which is feasible: 1. Use tcpdump to capture packets 2. Use netcat as an intercepting proxy

Re: Optimize SO for nginx

Increasing # ephemeral ports Adjusting ulimit 3 tuning specific to your workload. UDP and TCP buffet size - should match BDP NIC tuning - irq coalescing, 10G specific tuning, see CDN, melanox,redhat, hp suggestions for lie latency tuning. That’s a start. Peter Sent from my iPhone > On Apr 19, 2

Re: [no subject]

everything. Peter Sent from my iPhone > On Apr 12, 2019, at 10:57 PM, lists wrote: > > Perhaps a dumb question, but if all you are going to do is return a 403, why > not just do this filtering in the firewall by blocking the offending IP > space. Yeah I know a server should a

Re: Mapping url to physical urls using lua script or something else.

, Peter Sent from my iPhone > On Mar 23, 2019, at 8:17 PM, Hemant Bist wrote: > > Hi, > I want to know if this a right way to make the change ( or if there is a > better /recommended method). So far we have only tweaked the configuration of > nginx which scales very nicely fo

Re: Possible memory leak?

? Curious , Peter Sent from my iPhone > On Mar 12, 2019, at 9:57 PM, Maxim Dounin wrote: > > Hello! > >> On Tue, Mar 12, 2019 at 02:09:06PM -0400, wkbrad wrote: >> >> First of all, thanks so much for your insights into this and being patient >> with me. :) I&#

Re: Sporadic long response times with upstream server

the-curious-case-of-the-crooked-tcp-handshake <https://labs.ripe.net/Members/gih/the-curious-case-of-the-crooked-tcp-handshake> You can adjust the net.inet.tcp.finwait2_timeout and similar and see if that changes the length of your three second effect to something else. Hope this helps, Pe

Re: Nginx Reverse Proxy Caching

Satish, The browser (client-side) cache isn’t related to the nginx reverse proxy cache. You can tell Chrome to not cache html by adding the following to your location definition: add_header Cache-Control 'no-store'; You can use Developer Tool in Chrome to check that it is working. P

Re: I'm about to embark on creating 12000 vhosts

+1 to the openresty suggestion I’ve found that whenever I want to do something gnarly or perverse with nginx, openresty helps me do it in a way that’s maintainable and with any ugliness minimized. It’s like nginx with super-powers! Sent from my iPhone > On Feb 11, 2019, at 1:34 PM, Robert Pap

Re: STALE responses taking as much as MISS responses

behavior. Peter > On 11 Feb 2019, at 2:00 PM, Peter Booth wrote: > > You should be able to answer this by tailing the log of your nginx and orig > server at the same time. > > It would be helpful if you shared an (anonymized) section of both logs. When > I say fast or slow >

Re: STALE responses taking as much as MISS responses

You should be able to answer this by tailing the log of your nginx and orig server at the same time. It would be helpful if you shared an (anonymized) section of both logs. When I say fast or slow I might mean something very different to what you hear. > On 11 Feb 2019, at 10:06 AM, joao.pere

Re: Random 404 Errors

Open this and you will see that a request to https://digitalkube.com/ returns a 301 pointing back to itself. Check your CDN configuration https://redbot.org/?uri=https%3A%2F%2Fdigitalkube.com%2F Sent from my iPhone > On Jan 28, 2019, at 11:47 AM, Gary wrote: > > Log files? Nginx.conf file? Y

Re: OWIN Server Error

request that with curl Also, your config suggests that your web server might be internet visible. If It is, I would suggest that you try access these test URLs, and also directly accessing your IIS using the redbot.org HTTP validator. Good luck, Peter > On 21 Jan 2019, at 9:23 AM, petrose

Re: Set browser cache to current month!

If you use the openresty nginx distribution then you can write a few lines of Lua to implement your custom logic. Sent from my iPhone > On Jan 13, 2019, at 9:13 AM, shahzaib mushtaq wrote: > > Hi, > > We've a location like /school for which we want to set browser cache lifetime > as 'current

Re: Nginx hang and do not respond with large number of network connection in FIN_WAIT state

Is your nginx/Apache site visible on the internet without any authentication? If so, I recommend that you access your site directly, not through cloud flare with redbot.org, which is the best HTTP debugger ever, for both the nginx and Apache versions of the site and see how they compare. Why is

Re: Nginx hang and do not respond with large number of network connection in FIN_WAIT state

1. What does GET / return? 2. You said that nginx was configured as a reverse proxy. Is / proxied to a back-end? 3. Does GET / return the same content to different users? 4. Is the user-agent identical for these suspicious requests? Sent from my iPhone > On Jan 10, 2019, at 11:19 PM, gnusys wr

Re: Nginx hang and do not respond with large number of network connection in FIN_WAIT state

How do you know that this is an attack and not “normal traffic?” How are these requests different from regular requests? What do the weblogs say about the “attack requests?" > On 10 Jan 2019, at 10:30 PM, gnusys wrote: > > My Current settings are higher except the worker_process > > worker_pro

Re: Nginx hang and do not respond with large number of network connection in FIN_WAIT state

Your web server logs should have the key to solving this. Do you know what url was being requested? Do the URLs look valid? Are there requests all for the same resource? Are the requests coming from a single IP range? Are the requests all coming with the same user-agent? Does the time this starte

Re: Nginx hang and do not respond with large number of network connection in FIN_WAIT state

The important question here is not the connections in FIN_WAIT. It’s “why do you have so many sockets in ESTABLISHED state?” First thing to do is to run netstat -ant | grep tcp and see where these connections are to. Do you have a configuration that is causing an endless loop of requests? Sent

no longer with the company

peter wright is no longer with the company ___ nginx mailing list nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx

Re: Can Nginx handle millions of static pages or pictures ?

thousands of requests ended up generating only one request for the backend, and the site stayed up under such spiky loads. My tip is to start simple and add one feature at a time and understand your web server logs, which contain lots of information. Peter > On 2 Nov 2018, at 10:45 AM, yf

Re: Can Nginx handle millions of static pages or pictures ?

So this is a very interesting question. I started writing dynamic websites in 1998. Most developers don’t want to generate static sites. I think their reasons are more emotional than technical. About seven years ago I had two jobs - the day job was a high traffic retail fashion website. the side

Re: Nginx cache returning empty response for just the home page

issue is intermittent do you mean that you make the same request and get different results? As for listening to production logging, it needn’t be an issue > On 7 Oct 2018, at 4:57 PM, Jane Jojo wrote: > > Thanks for this Peter. I’ll look at redbot. > > Do you by any chanc

Re: Nginx cache returning empty response for just the home page

You need to understand what requests are being received, what responses are being sent and the actual keys being used to write to your cache. This means intelligent request logging, possibly use of redbot.org, and examination of your cache. I used to use a script that someone had posted here y

Re: Avoiding Nginx restart when rsyncing cache across machines

One more approach is to not change the contents of resources without also changing their name. One example would be the cache_key feature in Rails, where resources have a path based on some ID and their updated_at value. Whenever you modify a resource it automatically expires. Sent from my iPho

Re: Avoiding Nginx restart when rsyncing cache across machines

show at known time of the day every week. nginx proxy_cache was invaluable at helping the site stay up and responsive when hit with enormous spikes of requests. This is nuanced, subtle stuff though. Is your site something that you can disclose publicly? Peter > On 12 Sep 2018, at 7:23

Re: nginx sends 301 redirect for alias in location

On Wed, Sep 5, 2018 at 3:25 PM, Maxim Dounin wrote: > On Wed, Sep 05, 2018 at 09:58:54AM +0300, Peter Volkov wrote: > > > Hi. Could you, please, explain. Why nginx sends 301 redirect for the > > following vhost: > > > > server { > > listen 80; >

nginx sends 301 redirect for alias in location

nently nginx -- Peter. ___ nginx mailing list nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx

Re: limit_rate based on User-Agent; how to exempt /robots.txt ?

So it’s very easy to get caught up in he trap if having unrealistic mental models of how we servers work when dealing with web servers. If your host is a recent (< 5 years) single Dickey host then you can probably support 300,000 requests per second fir your robots.txt file. That’s because the f

Re: How are you managing CI/CD for your nginx configs?

I’ve tried chef, puppet and ansible at thre different shops. I wanted to like chef and puppet because they are Ruby based (which I like) but they seemed clunky, ugly, and heavyweight. Ansible seemed to solve the easy problems. When I had a startup I just used Capistrano for deployments, with erb

Re: Cache question

gh in the event of an error? Or is there more to it than that? Sometimes people build sites that are “more dynamic” than they need to because they didn't consider a static site that gets frequently periodically regenerated. Peter > On 28 Jun 2018, at 9:27 AM, Friscia, Michael wr

Re: Recovering from partial writes

How large is a large POST payload? Are the nginx and upstream systems physical hosts in same data center? What are approx best case / typical case / worst case latency for the post to upstream? Sent from my iPhone > On Jun 22, 2018, at 2:40 PM, scott.o...@oracle.com wrote: > > I have an nginx p

Re: NGINX Proxy Cache Cache-Control

Your question raises so many other questions: 1. The static content - jpg, png, tiff, etc. It looks as though you are serving them your backend and caching them. Are they also being built on demand dynamically? If not, then why csche them? Why not deploy them to nginx and serve them directly?

Re: massive deleted open files in proxy cache

Sounds weird. 1. It doesn’t make sense for your cache to be on a tmpfs share. Better to use s physical disk allow Linux ‘s page csche to do its job 2. How big are the files in the larger cache? Min/median/max? Sent from my iPhone > On Jun 20, 2018, at 7:38 AM, rihad wrote: > > Have you be

Re: Performance of h2 is better than h2c

Is your client running n a different host than your server? > On 8 Jun 2018, at 5:35 AM, prabhat wrote: > > I am taking performance data on nginx. > The client I used is h2load > > Request per second using h2 is much higher than h2c. But I think it should > not be as h2 is having the overhead o

Re: Block countries - Nginx

Dont. You should let every tier do it’s job. Just because nginx has geoid functionality doesn’t mean that you should use it. If you are lucky enough to have hardware load balancer in front of nginx then do the blocking there, so you reduce the load on your nginx. The Golden Rule of keeping websi

Re: Block countries - Nginx

If you can dump your http traffic you will probably see a headers with names like: X-Real-IP X-Forwarded-For Sent from my iPhone > On May 23, 2018, at 11:25 PM, Frank Liu wrote: > > Since only load balancer sees the client IP, it has to pass that information > to nginx. You need to talk to yo

Re: Nginx Rate limiting for HTTPS requests

5. Do you use keepslive? Sent from my iPhone > On May 20, 2018, at 2:45 PM, Peter Booth wrote: > > Rate limiting is a useful but crude tool that should only be one if four or > five different things you do to protect your backend: > > 1 browser caching > 2 cDN > 3

Re: Nginx Rate limiting for HTTPS requests

Rate limiting is a useful but crude tool that should only be one if four or five different things you do to protect your backend: 1 browser caching 2 cDN 3 rate limiting 4 nginx caching reverse proxy What are your requests? Are they static content or proxied to a back end? Do users login? Is i

Re: Debugging Nginx Cache Misses: Hitting high number of MISS despite high proxy valid

uri";; add_header Link "<$canonical_url>; rel=\"canonical\""; proxy_pass http://apache$request_uri; } Tis snippet shows a key made of three parts. The real version has seven parts. Good luck! Peter > On 14 May 2018, at 12:06

Re: Error: Couldn't connect to server

I’m guessing that you have script that keeps executing curl. What you can do is use curl -K ./fileWithListOfUrls.txt and the one curl process will visit each url in turn reusing the socket (aka HTTP keep alive) That said, curl isn’t a great workload simulator and, in the long time, you can get

Re: Virtual hosts sharing same port

Does this imply that that different behavior *could* be achieved by first defining virtual IP addresses (additional private IPs defined at the OS) which were bound to same physical NIC, and then defining virtual hosts that reference the different VIPs, in a similar fashion to how someone might c

Re: Monitoring http returns

connections, cache hit ratios etc is important to understand “what is normal?” It’s easy for our mental model of how a site works to differ markedly from reality. Sent from my iPhone > On Apr 11, 2018, at 2:04 AM, Jeff Abrahamson wrote: > >> On Wed, Apr 11, 2018 at 01:17:14AM

Re: Monitoring http returns

will cause google and bing and other search engines to scrape in a pathological manner Sent from my iPhone > On Apr 11, 2018, at 2:04 AM, Jeff Abrahamson wrote: > >> On Wed, Apr 11, 2018 at 01:17:14AM -0400, Peter Booth wrote: >> There are some very good reasons for do

Re: Monitoring http returns

Jeff, There are some very good reasons for doing things in what sounds like a heavy inefficient manner. The first point is that there are some big differences between application code/business logic and monitoring code: Business logic, or what your nginx instance is doing is what makes you mon

Re: Nginx throttling issue?

John, I think that you need to understand what is happening on your host throughout the duration of the test. Specifically, what is happening with the tcp connections. If you run netstat and grep for tcp and do this in a loop every say five seconds then you’ll see how many connections peak get

Re: Nginx throttling issue?

desired request distribution without triggering the ddos protection. Wrk2, Tsung, httperf are candidates, as well as the cloud based load generator services. Also see Neil Gunther’s paper on how to combine multiple jmeter instances to replicate real world tragic patterns. Peter Sent from my iPhone

Re: Nginx 1.12.1 Memory Consumption

processes. > > Do you have any suggestions for differentiating between the two issues that > might prevent memory from being returned to the system? > > Thanks! > >> On Thu, Mar 15, 2018 at 1:06 PM Peter Booth wrote: >> Two questions: >> >> 1. how a

Re: Nginx 1.12.1 Memory Consumption

Two questions: 1. how are you measuring memory consumption? 2. How much physical memory do you have on your host? Assuming that you are running on Linux, can you use pidstat -r -t -u -v -w -C “nginx” to confirm the process’s memory consumption, and cat /var/meminfo to view a detailed descrip

Re: Using the mirror module

size of your problem space. Peter Sent from my iPhone > On Mar 13, 2018, at 5:58 PM, Kenny Meyer wrote: > > Hi Roman, > >> Are there any errors in error.log? > No errors… > >> And what happens if you switch www.example.com and staging.example.com? > Then I get

Re: Using the mirror module

happening and use ss or tcpdump to confirm that no request is sent to your staging destination. I’m assuming that both ww.example.com and staging.example.com are hosted on different hosts, different IPs and are both functional. Peter > On Mar 13, 2018, at 5:58 PM, Kenny Meyer wrote: >

Re: location blocks, and if conditions in server context

I agree that avoiding if is a good thing. But avoiding duplication isn’t always good. Have you considered a model where your configuration file is generated with a templating engine? The input file that you modify to add/remove/change configurations could be free of duplication but the conf fi

Re: fsync()-in webdav PUT

rs ... But the bottom line is separation of concerns. Nginx should not use fsync because it isn’t nginx's business. My two cents, Peter > On Feb 28, 2018, at 4:41 PM, Aziz Rozyev wrote: > > Hello! > > On Wed, Feb 28, 2018 at 10:30:08AM +0100, Nagy, Attila wrote: > >&g

Re: Files still on disc after inactive time

100GB of cached files sounds enormous. What kinds of files are you caching? How large are they? How many do you have? If you look at your access log what hit rate is your cache seeing? Sent from my iPad > On Feb 16, 2018, at 3:16 AM, Andrzej Walas > wrote: > > After this inactive logs I have

Re: Response Header IF statement problem

I think that part of the power and challenge of using nginx’s caching is that there are many different ways of achieving the same or similar results, but some of the approaches will be more awkward than others. I think that it might help if you could express what the issue is that you are try

Re: Suggestions for web apps to test out nginx load balancing?

The tech empower web framework benchmark is a set of six micro benchmarks implemented with over 100 different web frameworks. It’s free, easy to setup, and comes as prebuilt docker containers. Sent from my iPhone > On Jan 26, 2018, at 2:27 PM, leeand00 wrote: > > Does anyone have a suggestion

Re: How to correctly dedicate server processes to specific CPU cores?

So some questions: What hardware is this? Are they 16 “real” cores or hyper threaded cores? Do you have a test case setup so you can readily measure the impact of change? Many tunings that involve numa will only show substantial results ion specific app What does cat /proc/cpuinfo | tail -28 ret

Re: 2 of 16 cores are constantly maxing out - how to balance the load?

Perhaps you should use pidstat to validate which processes are running on the two busy cores? > On Jan 11, 2018, at 6:25 AM, Vlad K. wrote: > > On 2018-01-11 11:59, Lucas Rolff wrote: >> Now, in your case with php-fpm in the mix as well, controlling that >> can be hard ( not sure if you can pin

Re: 504 gateway timeouts

t; On Fri, Jan 5, 2018 at 6:28 AM, Wade Girard wrote: >> Hi Peter, >> >> Thank You. >> >> In my servlet I am making https requests to third party vendors to get data >> from them. The requests typically take 4~5 seconds, but every now any then >> on

Re: 504 gateway timeouts

that behave differently” It would probably help us if you explained a little more about your test, why the sleep is there and what your goals are? Peter > On Jan 4, 2018, at 11:45 PM, Wade Girard wrote: > > I am not sure what is meant by this or what action you are asking me to tak

Re: nginx latency/performance issues

Are you running apache bench on the sam for different host? How big is the javascript file? What is your ab command line? If your site is to be static published (which is a great idea) why are you using SSL anyway? > On 4 Jan 2018, at 6:12 PM, eFX News Development wrote: > > Hello! Thanks for

Re: Can Nginx used as a reverse proxy send HTTP(s) requests through a forward proxy ?

Take a look at the stream directive in the nginx docs. I’ve used that to proxy an https connection to a backend when I needed to make use of preecisting SSO Sent from my iPhone > On Dec 6, 2017, at 5:47 PM, Nicolas Legroux wrote: > > Hi, > > I'm wondering if it's possible to do what's descri

Re: simple reverse web proxy need a little help

First Step Use something like http://www.kloth.net/services/nslookup.php To check the IP addresses returned for all six names (with and without www for the three domains) Do these look correct? Sent from my iPhone > On Dec 6, 2017, at 5:27 PM, qwazi wrote: > > I'm new to nginx but needed a

Re: How to control the total requests in Ngnix

017, at 1:11 AM, Peter Booth wrote: > > I’m a situation where you are confident that the workload is coming from a > DDOS attack and not a real user. > > For this example the limit is very low and nodelay wouldn’t seem appropriate. > If you look at the techempower benchmark res

Re: How to control the total requests in Ngnix

I’m a situation where you are confident that the workload is coming from a DDOS attack and not a real user. For this example the limit is very low and nodelay wouldn’t seem appropriate. If you look at the techempower benchmark results you can see that a single vote VM should be able to serve ov

Re: How to control the total requests in Ngnix

So what exactly are you trying to protect against? Against “bad people” or “my website is busier than I think I can handle?” Sent from my iPhone > On Nov 30, 2017, at 6:52 AM, "tongshus...@migu.cn" > wrote: > > a limit of two connections per address is just a example. > What does 2000 reque

Re: Moving SSL termination to the edge increased the instance of 502 errors

There are many things that *could* cause what you’re seeing - say at least eight. You might be lucky and guess the right one- but probably smarter to see exactly what the issue is. Presumably you changed your upstream webservers to do this work, replacing ssl with unencrypted connections? Do y

Re: Nginx cache returns MISS after a few hours, can't be set up to cache "forever"

Can you count the number of files that are in your cache and whether or not it's changing with time? Then compare with the number of unique cache keys (from your web server log) When the server starts returning a MISS - does it only do this for newer objects that haven’t been requested before? D

Re: Issue with flooded warning and request limiting

$50k F5 BigIP LTM+WAF at less than 1/10 the cost. But all of these features need to be used delicately, if you want to avoid rejecting valid requests. Peter Sent from my iPhone > On Nov 20, 2017, at 9:28 AM, Stephan Ryer wrote: > > Thank you very much for clearing this out. All I n

Re: Nginx dynamic proxy_pass keeps redirecting to wrong domain

You need to understand, step-by-stp, exactly what is happening. Here is one (of many) ways to do this: 1. Open the Chrome browser 2. Right click on the background and select inspect, this will open the developer tools page 3. Select the tab “Network” which shows you the HTTp requests issued for

Re: Does anyone know how to configure the session inactivity timeout in Nginx ?

This is true in general, but with a single exception that I know of. It’s common for nginx to proxy requests to a Rails app or Java app on an app server and for the app server to implement the session logic This is an open-resty session implementation that sits within the nginx process. https:/

higher precision timings [ Re: why delta only include the execution time of ngx_process_events not ngx_event_process_posted (Zhang Chao)

data. Are there any lans within nginx to report higher resolution timings? Peter > On Oct 29, 2017, at 9:35 AM, yang chen wrote: > > Thanks for your reply, why calling the ngx_event_expire_timers is unnecessary > when ngx_process_events handler returns so quickly that the &

Re: Performance issue of "ngx_http_mirror_module"

There are a few approaches to this but they depend upon what you’re trying to achieve. Are your requests POSTs or GETs? Why do you have the mirroring configured? If the root cause is that your mirror site cannot support the same workload as your primary site, what do you want to happen when yo

Re: E3-1240 with 32GB Ram - Unable to set the optimal value for the server

in use) If you look at all of the lines its easier to see that there is no trend of memory increasing over time: NewiMac:Records peter$ cat phpOutput.txt | grep php-fpm | awk '{print $11,$6}' | head -15 | awk '{print $2}' | average -M 11852 NewiMac:Records peter$ cat phpO

Re: E3-1240 with 32GB Ram - Unable to set the optimal value for the server

w many milliseconds are spent building every request See https://lincolnloop.com/blog/tracking-application-response-time-nginx/ <https://lincolnloop.com/blog/tracking-application-response-time-nginx/> It’s better that you email me off-list for further discussion Peter peter _ booth @ m

Re: E3-1240 with 32GB Ram - Unable to set the optimal value for the server

Agree, Can you email me offline. I might have a few ideas on how to assist. Peter peter _ booth @ me.com > On Oct 16, 2017, at 3:55 PM, agriz wrote: > > Sir, > > Thank you for your reply. > > This is a live server. > It is an NPO (non profit organisation). &g

Re: E3-1240 with 32GB Ram - Unable to set the optimal value for the server

You said this > On Oct 16, 2017, at 3:30 PM, Peter Booth wrote: > > If i change the values, it hangs with 3k or 5k visitors. > This one handle 5k to 8k what hangs? the host or the nginx worker processes or the PHP or the mysql? You need to capture some diagnostic information over

Re: E3-1240 with 32GB Ram - Unable to set the optimal value for the server

Advice - instead of tweaking values, first work out what is happening, locate the bottleneck, then try adjusting things when you have a theory First QN you need to answer: For your test, is your system as a whole overloaded? As in, for he duration of the test is the #req/se supported constant?

Re: Reverse cache not working on start pages (solution founD)

error causes. Peter > On Oct 12, 2017, at 4:52 AM, Dingo wrote: > > I found the solution, but I don't understand what it does. When I add: > > proxy_cache_key "$host$uri$is_args$args"; > > To a location block it magically works. I have no clue what happens

Re: Multiple upstream_cache_status headers in response in a dual-cache configuration

at it has sufficient memory and that no major page faults are occurring (sar -B should return 0.0) Peter > On Oct 6, 2017, at 3:05 AM, rnmx18 wrote: > > Hi, > > To realize a distributed caching layer based of disk-speed and storage, I > have prepared the following configur

Re: Nginx splitting one single request's into multiple requests to upstream. (version 1.13.3)

I can say that Maxim's idea of using tcp proxying with the streams module Is very simple to configure - just a couple of lines, and tremendously useful. Sent from my iPhone > On Oct 4, 2017, at 3:24 PM, pan...@releasemanager.in > wrote: > > Maxim, > > totally agree on your statement and op

Re: Reverse cache not working on start pages

I found it useful to define a dropCache location that will delete the cache on request. I did this with a shell script that I invoked with lua (via openresty) but I imagine there are multiple ways to do this. Sent from my iPhone > On Oct 4, 2017, at 11:39 AM, Maxim Dounin wrote: > > Hello! >

Re: Nginx splitting one single request's into multiple requests to upstream. (version 1.13.3)

the request to nginx which is in front of another back-end? Is so, what is the back-end? How much data is being sent in the POST? Who creates the JSON doc? Peter Are you familiar withe material in https://www.codeproject.com/Articles/648526/All-about-http-chunked-responses <ht

Re: ngx_slab_alloc() failed: no memory in cache keys zone

Lots of questions: What are the upstream requests? Are you logging hits and misses for the cache - what's the hit ratio? What size are the objects that you are serving? How many files are there in your cache? What OS and what hardware are you using? If it's Linux can you show the results of the f

Re: Options for selective logging

What is your ultimate goal? You say that you want to replay 0.05% of traffic into a test environment. Are you wanting to capture real world data on a one off or ongoing basis? You say that this particular proxy is very busy. How busy? Is it hosted on a physical host or a virtual machine? If

  1   2   >