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Questions tagged [cache]

A location or process for storing of transitory or temporary data in order to improve application or system performance.

1588 questions
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Restore batch job from checkpoints on NFS mount

I'm running long batch jobs on Kubernetes cluster, that operate on NFS directory to save artifacts and checkpoints. Every job has its own directory that it cd into and run a script to restore its state and continue the computation. No two jobs ever…
pkubik
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Nginx Reverse Proxy, SSL Offloading, Caching, IIS, Wordpress - Redirect 301 loop

I'm trying to setup a Nginx Reverse Proxy with SSL Offloading and Caching in front an IIS 10 and WordPress with pretty links, but I'm getting an infinite redirect 301 loop. My Nginx configuration is almost the same as find in this tutorial, as can…
LKr
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Is include() cached with fastcgi?

I have a script like this script.php and i do cache false with this map $request_uri $cache_false { default 0; ~^/data/package.php?$ 1; ~^/signin.php?$…
yvgwxgtyowvaiqndwo
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Massive performance issue for just two users in UI and Download

I have a strange issue with my self hosted nextcloud instance: All works fine, but I have two users who report huge issues with speed when accessing that nextcloud. Two independent effects apparently: the WebUI takes ages to load for each single…
arkascha
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Disable linux cache memory

Currently i have a server with 4 gb of ram runing 2 rsyncs task (100gb each) every 5 minutes and some monitoring containers, eventually the linux cache eats all ram (rsync faults) and if the monitoring stack launch a new container the system hangs…
Carlos Rubio
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The server's host key is not cached in the registry

There is a scheduled job to send files via psftp command (psftp -bc -v -P 22 -l username -pw password -b upload220506.ftp ftpsitename) in windows server. It is already cached by running exe file manually from command prompt as administrator.…
Formula One
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How to properly cache content in NGINX like in Plus version?

I saw official NGINX tutorial regarding content caching and tried to modify it according to my needs. I use CDN (Cloudfront), but the performance doesn't convince me. If my server was more faster it'd do better in Core Web Vitals or Page Experience…
AtomX
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Arp behavior on non requesting user for response

If we imagine we already have a valid cache for a pair in computer B and then composer A asks about the same pair and computer C responses with the pair information, what would happen here to computer B which already included the pair, would it…
Steve Moretz
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Why does drop_caches increase "available" memory

I encounter low memory issues on proxmox 7 nodes I'm managing. When reading about similar problems I was directed to linuxatemyram.com, after reading this page I started monitoring "available" memory instead of "used" memory. But the problem…
Teriblus
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NGINX Reverse Proxy And Cache MS Graph API

I'm building a web based company directory which has roughly 450 employees. The data source being used is the Microsoft Graph API (Azure AD). This API requires you to make a request for every employee to receive their photos, since they are sent as…
Justin
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NFS with FS-Cache - set up, but still says it's disabled

I have about the same problem as this one here, but that one seems to have been solved because cachefilesd hasn't been enabled. I have it enabled (removed the comment before RUN=yes in /etc/default/cachefilesd) and restarted the service, yet I still…
Richard Rosner
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Where is IIS output cache location, and how can I relocate it?

I've successfully configured IIS output cache. However after repeated google pagespeed tests it seems that the page speed is even slower with output caching compared to without output cache configuration. My guess it is because the very slow system…
g.pickardou
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CDN video caching duration

Are there any standards about for how long (days, weeks) do CDNs cache video content? This other answer suggested that it is only for a short period of time (e.g. 1 day) but that information is almost a decade old by now. For regular (non-video)…
ahron
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Apache: I cannot set full cache header for text/html using htaccess

I had a similar problem where I couldn't set the full cache header for JS and CSS files in my htaccess file, and it turned out I couldn't because the cache expiry was being set on the server and I had to add AllowOverride all in the vhost container…
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LVM aggressive read and write cache

I've added a 2 TB RAID1 SSD as a writeback cache to a 10 TB RAID1 HDD using LVM 2.03.11(2) (2021-01-08) like this: lvcreate --type raid1 --mirrors 1 --nosync -l 100%FREE -n sshd sshd /dev/sdc /dev/sdd lvcreate --type raid1 --mirrors 1 --nosync -l…
Chris
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