Has anyone tried running a postgresql container with a tmpfs volume mount to pgsql_tmp? (any database with a temp files directory i would imagine) Has it caused any problem? Is this a bad idea? ...

I have a case where there are two processes which act on the same file - one as a writer and one as a reader. The file is a one line text file and the writer re-writes the line in a loop. reader re...

I am looking for any existing implementation of sharing a read only in-memory cache across pods on the same node. This setup would allow fast access without the need to load the entire cache into e...

I made a tmpfs filesystem in my home directory on Ubuntu using this command: $ mount -t tmpfs -o size=1G,nr_inodes=10k,mode=0777 tmpfs space $ df -h space . File system Size Used Avail. Avail% Moun...

I'm running a docker container that seems to have insufficient memory and I'm not sure how to solve this problem. I'm essentially running a program on this docker container that downloads an image...

I have a docker-compose file that I'm trying to secure by making the root volumes of the containers it creates read-only. Relevant parts of docker-compose.yml: version: '2' services: mysql: im...

I would like to run entire docker container in memory without mapping volumes to host's hard drive. TMPFS described here helps to mount volumes as "memory volumes", but I'm looking a way how to st...

Question: How do you specify in a Dockerfile, or on the docker build command line, that you would like to have a tmpfs mounted in the build container? This is in the context of a split build - the ...

I have a Postgres database inside a docker container against which I run django tests. I want to improve the speed of the tests. The easiest way to do this (it seems to me) is to move postgres data...

I'd like to measure tmpfs performance by using dd. But it fail, like below: # dd if=/dev/zero of=/tmp/128M bs=4M count=32 oflag=direct dd: failed to open ‘/tmp/128M’: Invalid argument Any help?...

I had to write a Bash script to delete duplicate files today, using their md5 hashes. I stored those hashes as files in a temporary directory: for i in * ; do hash=$(md5sum /tmp/msg | cut -d " " ...

I faced up with a strange scala-io moveTo method issue. Here is my filesystem, tmp directory resides in ram. ~ % df -Th ~/ :) Filesystem Type Size Used Avail Use% Mounted on rootfs rootfs 112G 18G...