pg_dumpall -U postgres -s > schema_all.sqlALTER DEFAULT PRIVILEGES FOR ROLE postgres IN SCHEMA public \sudo zpool statusoutput:
pool: raid10_pool
state: ONLINE| ## show pool configs | |
| zfs get all zfs10 | |
| ## print arc summary | |
| arc_summary | |
| ## watch arc stats every 2 sec | |
| watch -n 2 grep arc /proc/spl/kstat/zfs/arcstats | |
| ## test write speed |
| CREATE FUNCTION public.on_create_table_funct() | |
| RETURNS event_trigger | |
| LANGUAGE 'plpgsql' | |
| COST 100 | |
| VOLATILE NOT LEAKPROOF SECURITY DEFINER | |
| AS $BODY$ | |
| DECLARE | |
| sch text; | |
| BEGIN |
| #/bin/bash | |
| set -e | |
| # set your BOT's API KEY and TOKEN | |
| API_KEY=****************************** | |
| API_TOKEN=**************************** | |
| ## send notification to google chat with card format. | |
| # | |
| # sample: |
| -- https://stackoverflow.com/questions/26279770/how-to-cast-ctid-system-column-into-long-and-vice-versa | |
| -- ctid to long | |
| SELECT ((ctid::text::point)[0]::bigint << 32) | (ctid::text::point)[1]::bigint AS long_ctid FROM table1 LIMIT 1; | |
| long_ctid | |
| ----------------- | |
| 130043019788289 | |
| (1 row) |
| # start a Xserver | |
| sudo X -config xorg.conf | |
| # set fan speed to 60% | |
| sudo DISPLAY=:0 nvidia-settings -a "[gpu:0]/GPUFanControlState=1" -a "[fan:0]/GPUTargetFanSpeed=60" |
| #!/bin/bash | |
| set -e | |
| set -o pipefail | |
| # https://gist.github.com/kilfu0701/2f545f7f1a8a9d0bd923be8d38028817 | |
| function echo_c() | |
| { | |
| WHITE='\033[1;37m' | |
| RED='\033[1;31m' | |
| GREEN='\033[1;32m' |
| CREATE OR REPLACE FUNCTION rm_table_idx(tbl_name text) | |
| RETURNS void AS | |
| $$ | |
| DECLARE | |
| _sql text; | |
| BEGIN | |
| SELECT 'DROP INDEX ' || string_agg(indexrelid::regclass::text, ', ') | |
| FROM pg_index i | |
| LEFT JOIN pg_depend d ON d.objid = i.indexrelid |
| FROM python:3.8 | |
| USER root | |
| RUN apt-get update | |
| RUN apt-get -y install locales && \ | |
| localedef -f UTF-8 -i ja_JP ja_JP.UTF-8 | |
| ENV LANG ja_JP.UTF-8 | |
| ENV LANGUAGE ja_JP:ja | |
| ENV LC_ALL ja_JP.UTF-8 |