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@superseb
superseb / rancher_v218_etcd_maintenance.md
Last active November 2, 2019 02:21
Rancher v2.1.8 single install etcd maintenance

Rancher v2.1.8 single install embedded etcd maintenance

This is not official documentation, have/make backups, use at your own risk.

v2.1.8 only (for 2.2.x, see https://gist.github.com/superseb/f223b15949c031983da2cb850f56a897)

When etcd db size exceeds quota, it will raise an alarm and throw the error mvcc: database space exceeded.

Rancher container is running

@dedsm
dedsm / timescale--db--backend--base.py
Last active April 24, 2024 14:15
WeRiot Django Timescale integration
import logging
from django.contrib.gis.db.backends.postgis.base import \
DatabaseWrapper as PostgisDBWrapper
from django.db import ProgrammingError
from .schema import TimescaleSchemaEditor
logger = logging.getLogger(__name__)
@chenxiaolong
chenxiaolong / DellXPS15_9560_AHCI_RAID.md
Created November 27, 2017 01:33
Switching between AHCI and RAID on the Dell XPS 15 (9560)

Switching between AHCI and RAID on the Dell XPS 15 (9560)

This guide likely applies to other models and, potentially, even laptops from other OEMs that have NVME drives. However, I've only tested this on my Dell XPS 15 (9560) with the OEM Windows installation from the Signature Edition model.

Switching from RAID to AHCI

Switching from RAID to AHCI is significantly simpler than switching from AHCI to RAID. All that's needed is a successful boot to Safe Mode.

  1. To set the default boot mode to Safe Mode, use msconfig.exe or open an admin cmd/PowerShell window and run:
@ekinertac
ekinertac / field_blank_null.md
Last active May 28, 2024 05:50
Django null/blank field explanation
Fields null=True blank=True
CharField, TextField, SlugField, EmailField, CommaSeparatedIntegerField DON'T Django's convention is to store empty values as the empty string, and to always retrieve NULL or empty values as the empty string for consistency. OK Do this if you want the corresponding form widget to accept empty values. If you set this, empty values get stored as empty strings in the database.
BooleanField DON'T Use NullBooleanField instead. DON'T
IntegerField, FloatField, DecimalField OK If you wabt to be able to set the value to NULL in the database OK if you want the corresponding form widget to accept empty values. if so out will also want to set null=True
DateTimeField, DateField, TimeField OK if you want to be able to set the value to NULL in the database. OK If you want the corresponding form widget to accept empty values, or if you are using auto now or auto now add. If so, you will al
@niyazpk
niyazpk / pQuery.js
Created October 25, 2014 14:03
Add or update query string parameter
// Add / Update a key-value pair in the URL query parameters
function updateUrlParameter(uri, key, value) {
// remove the hash part before operating on the uri
var i = uri.indexOf('#');
var hash = i === -1 ? '' : uri.substr(i);
uri = i === -1 ? uri : uri.substr(0, i);
var re = new RegExp("([?&])" + key + "=.*?(&|$)", "i");
var separator = uri.indexOf('?') !== -1 ? "&" : "?";
if (uri.match(re)) {