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Fix vm_core.h Error Ruby_current_ec Undeclared When Install Ruby 3.1.3 or 3.0.5

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Today ruby core team release the 3.1.3 and 3.0.5 patch version, but when I install it on CentOS 7, I got the below errors:

make: *** [miniinit.o] Error 1

make: *** Waiting for unfinished jobs....

In file included from vm_core.h:83:0,

                 from iseq.h:14,

                 from ast.c:6:

thread_pthread.h:108:43: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘struct’

     RUBY_EXTERN RB_THREAD_LOCAL_SPECIFIER struct rb_execution_context_struct *ruby_current_ec;

                                           ^

In file included from iseq.h:14:0,

                 from ast.c:6:

vm_core.h: In function ‘rb_current_execution_context’:

vm_core.h:1870:34: error: ‘ruby_current_ec’ undeclared (first use in this function)

     rb_execution_context_t *ec = ruby_current_ec;

                                  ^

vm_core.h:1870:34: note: each undeclared identifier is reported only once for each function it appears in

ast.c: At top level:

cc1: warning: unrecognized command line option "-Wno-tautological-compare" [enabled by default]

cc1: warning: unrecognized command line option "-Wno-self-assign" [enabled by default]

cc1: warning: unrecognized command line option "-Wno-parentheses-equality" [enabled by default]

cc1: warning: unrecognized command line option "-Wno-constant-logical-operand" [enabled by default]

cc1: warning: unrecognized command line option "-Wno-cast-function-type" [enabled by default]

make: *** [ast.o] Error 1

After do some research, I found it works in AWS linux (gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-15)) and Ubuntu (gcc (Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0) smoothly, but CentOS 7 will always failed. (gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44))

So I guess probably it’s relative with the old stock gcc version of CentOS 7, luckily new gcc can be installed in CentOS 7 easily.

yum list | grep gcc

yum install centos-release-scl-rh

yum install llvm-toolset-7-clang

yum install centos-release-scl

yum install devtoolset-7-gcc.x86_64 && yum install devtoolset-7-gcc-c++.x86_64

# or yum install devtoolset-7-toolchain

scl enable devtoolset-7 bash

rbenv install 3.1.3 # now can successully install ruby!

Hoping this article can save you at least half day time and having a nice day!

蜗牛和蚕宝宝成了朋友

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蜗牛和蚕宝宝成了朋友

一天，蜗牛和蚕宝宝在窗台上偶然相遇了，蚕宝宝问蜗牛，“你是谁？为啥你的身上有个难看的壳？“蜗牛愤怒的说：”那是我的家，我累了倦了可以休息的地方，你又是谁？不会连住的地方也没有吧？“蚕宝宝想了想，好像自己吃了那么多桑叶，长了这么大，从来也没想过要在哪里住这个问题。不过既然蜗牛那么说，好像住的地方也挺重要的，那就不妨……

”我住在仙人掌的顶上，看到没？不比你的房子漂亮？！“

蜗牛顿时有点傻眼，有点不相信，但是又说不出哪里有问题：“好宝宝，能不能带我上去看看？我看这颗仙人掌好高啊！”，蚕宝宝有点紧张，自己好像也没爬过那么高大的仙人掌，不过既然大话已经说出去了，也只能……

“那我带你，你跟我来！”蚕宝宝在蜗牛之前，就开始爬起了仙人掌，蜗牛则紧跟在后，蚕宝宝当然不熟路，爬到一半一不注意一头撞上了仙人掌的一根刺，顿时头疼浑身一卷滚下了仙人掌。蜗牛也没好到哪里，由于他不愿意放弃他的壳，完全就跟不上蚕宝宝，不过好在他及时的接住了滚下来的蚕宝宝。

蚕宝宝很感激蜗牛的救命之恩，有点不好意思的说，“蜗牛哥，我说谎了，其实我也没住的地方，平时我都是吃桑叶吃累了，随便就地睡觉的。”蜗牛也有点惭愧，说：“好宝宝，我背了一个大壳，其实限制了我的行动力，我其实刚刚压根就爬不了仙人掌。”

蚕宝宝突然发现自己太虚荣了，蜗牛哥还是很可爱的，于是两个人最终成了很好的朋友。

My Maintain PostgreSQL Commands

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SELECT schemaname                                    AS table_schema,

       relname                                       AS table_name,

       PG_SIZE_PRETTY(PG_TOTAL_RELATION_SIZE(relid)) AS total_size,

       PG_SIZE_PRETTY(PG_RELATION_SIZE(relid))       AS data_size,

       PG_SIZE_PRETTY(PG_TOTAL_RELATION_SIZE(relid) - PG_RELATION_SIZE(relid))

                                                     AS external_size

FROM pg_catalog.pg_statio_user_tables

ORDER BY PG_TOTAL_RELATION_SIZE(relid) DESC,

         PG_RELATION_SIZE(relid) DESC

LIMIT 100;

List all table size. origin

Upgrade Redis to 6.x on Ubuntu 20.04

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Add the official beta apt source

curl -fsSL https://packages.redis.io/gpg | sudo gpg --dearmor -o /usr/share/keyrings/redis-archive-keyring.gpg

echo "deb [signed-by=/usr/share/keyrings/redis-archive-keyring.gpg] https://packages.redis.io/deb $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/redis.list

Do install && restart

sudo apt-get update

sudo apt-get install redis

sudo systemctl restart redis

Original post

Fix core.fsyncObjectFiles Is Deprecated; Use core.fsync Instead in Gitlab

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After upgrade to higher version of Gitlab, when I push the repository to Gitlab, it gives warning like:

The warning when you push
remote: warning: core.fsyncObjectFiles is deprecated; use core.fsync instead

remote: Resolving deltas: 100% (2654/2654), completed with 614 local objects.

remote: warning: core.fsyncObjectFiles is deprecated; use core.fsync instead

remote: warning: core.fsyncObjectFiles is deprecated; use core.fsync instead

More recent commit fix it, but maybe due to I upgrade from 14.6 source code installation, so the setting is not apply.

Running below command to fix it.

sudo su - git

git config -l

git config --global --unset core.fsyncObjectFiles

git config --global --add core.fsync objects,derived-metadata,reference

git config --global --add core.fsyncMethod fsync

Compare with before setting and after FYI:

Before
core.autocrlf=input

gc.auto=0

repack.writebitmaps=true

receive.advertisepushoptions=true

receive.fsckobjects=true
After
core.autocrlf=input

core.fsync=objects,derived-metadata,reference

core.fsyncmethod=fsync

gc.auto=0

repack.writebitmaps=true

receive.advertisepushoptions=true

receive.fsckobjects=true

Deploy Homeland Forum Rails App on Rocky Linux 8

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Install htop and atop

sudo dnf update

sudo dnf install epel-release

sudo dnf install htop

sudo dnf install atop

Install nginx

sudo dnf install nginx

Install node.js v18

Using nodesource distribution

curl -fsSL https://rpm.nodesource.com/setup_18.x | bash -

dnf install -y nodejs

yum install gcc-c++ make

curl -sL https://dl.yarnpkg.com/rpm/yarn.repo | sudo tee /etc/yum.repos.d/yarn.repo

yum install yarn

Install postgresql

Following DO manual

dnf module list postgresql

sudo dnf module enable postgresql:13

sudo dnf install postgresql-server

sudo dnf install postgresql-devel

sudo postgresql-setup --initdb

sudo systemctl start postgresql

sudo systemctl enable postgresql

sudo -i -u postgres

psql

Install homeland other depends

yum install redis

yum install memcached

yum install ImageMagick

yum install ghostscript

Setup thape_forum user account

adduser thape_forum

cd /etc/sudoers.d/

echo "thape_forum ALL=(ALL) NOPASSWD:ALL" > 20-thape_forum-user

sudo su - thape_forum

mkdir .ssh

chmod 700 .ssh

vi .ssh/authorized_keys # and paste your public key

chmod 600 .ssh/authorized_keys

Install rbenv & ruby

sudo dnf -y install git git-lfs make gcc curl openssl-devel zlib-devel libffi-devel readline-devel sqlite-devel

curl -fsSL https://github.com/rbenv/rbenv-installer/raw/HEAD/bin/rbenv-installer | bash

echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc

echo 'eval "$(rbenv init -)"' >> ~/.bashrc

source ~/.bashrc

rbenv -v

rbenv install -l

rbenv install 3.1.2

ruby --version

echo "gem: --no-document" > ~/.gemrc

gem update --system

Prepare the capistrano deploy folder

cd /var

sudo mkdir -p www/thape_forum

cd www

sudo chown -R thape_forum:thape_forum thape_forum/

bundle exec cap production puma:config

Create postgresql db user and import DB

sudo su - postgres

createuser thape_forum

psql

ALTER ROLE thape_forum LOGIN;

CREATE DATABASE thape_forum_prod WITH ENCODING='UTF8' OWNER=thape_forum;

logout

psql -d thape_forum_prod -f thape_forum_db.sql

Install nginx-mod-http-image-filter

sudo dnf makecache --refresh

sudo dnf -y install nginx-mod-http-image-filter

Original post

Using the NFS Drive in Ubuntu 20.04

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Run as root
apt-get install nfs-common

mkdir -p /mnt/codebase_backup

chown root:root codebase_backup/

mount -t nfs 172.17.0.1:/ifs/NFS-Directory/codebase_backup-NFS /mnt/codebase_backup

echo '172.17.0.1:/ifs/NFS-Directory/codebase_backup-NFS /mnt/codebase_backup nfs defaults 0 0' >> /etc/fstab