pauldardeau’s gists

pauldardeau / sys_setup_swift.sh

Created October 22, 2015 20:44

system setup of swift

	#!/bin/bash

	#*********** QUESTIONS ***********
	# 1) /var/log/swift?
	# 2) /var/cache/swift?
	#***************************************

	if [[ $EUID -ne 0 ]]; then
	echo "This script must be run as root" 1>&2
	exit 1

pauldardeau / sys_remove_swift.sh

Created October 22, 2015 20:45

script to remove swift from system

	#!/bin/bash

	if [[ $EUID -ne 0 ]]; then
	echo "This script must be run as root" 1>&2
	exit 1
	fi

	SWIFT_DISK_BASE_DIR="/srv"
	SWIFT_MOUNT_BASE_DIR="/mnt"

pauldardeau / gist:aa77a8163b2c7e3fe840

Created December 16, 2015 19:12

swift ring partitioning

pauldardeau / swift_handoffs.txt

Created January 13, 2016 20:10

Swift handoffs

	QUESTION
	========
	how is a handoff partition flagged versus a partition that is marked to be moved during a rebalance?

	ANSWER (notmyname)
	======
	"handoff" is only a thing defined by the results of the call to get_more_nodes(). it's not a concept that means anything with regards to rebalancing. ie it's not "flagged" or anything. handoffs are just an ordered walk through the ring


	QUESTION

pauldardeau / gist:77b15b3ed94ea01e7e9d

Created January 14, 2016 17:34

Thoughts on openstack dev environment setup

	Disruptive
	==========
	Random UI focus changes on ThinkPad Yoga 12 (Win8.1)
	Frequently experience low-memory conditions (8GB RAM, no VMs)
	"Close programs to prevent information loss"
	"Your computer is low on memory. Save your files and close these programs:"
	"Microsoft Outlook"
	Win8 UI/Usability
	Frequent reboots required by Windows and Intel corporate updates

pauldardeau / gist:99f72061b8616a1f9d4bd7574d784282

Created March 31, 2016 23:07

Swift multiple instance support

	Description - support multiple swift clusters running on same server
	Target - enterprise
	Rationale - enterprises would likely value having capability of sharing infrastructure for running
	multiple, separate swift clusters. A separate cluster may be needed/desired for: different versions
	of swift, different swift middleware, separation of admin. duties, different lines of business
	Similarities - Oracle and DB2 support such functionality for enterprises
	Work needed - support for unique ports and paths
	Technical effort - small
	Community adoption - idea needs to be sold
	Payoff - small/medium (remove barrier)

pauldardeau / gist:8a290ba889b324fc04ec79fcb06d3ba3

Created March 31, 2016 23:09

Swift dynamic probes

	Description - allow dynamic probes to be used for cluster monitoring and troubleshooting
	Target - enterprise
	Rationale - support problem diagnosis in non-trivial clusters (Mark Seger at HPE)
	Similarities - Java JMX, Solaris DTrace
	Work needed - core changes, config changes, new tests
	Technical effort - large
	Community adoption - idea needs to be sold
	Payoff - large (enterprise adoption)
	Time horizon - multiple release cycles

pauldardeau / gist:67da1f518ce31edf4e36e30bd370f813

Created March 31, 2016 23:11

Swift menu-based admin utility

	Description - provide menu-driven interactive utility for simple cluster admin
	Target - enterprise
	Rationale - no easy way to admin swift with open-source project
	Similarities - AIX SMIT/SMITTY
	Work needed - command-line utilities for each function and hook up to menu-driven utility
	Technical effort - small
	Community adoption - easy (value-added wraparound)
	Payoff - large (remove barrier, enterprise adoption, ease-of-use)
	Time horizon - 1 release cycle

pauldardeau / gist:9f10e02473b480b1a54d8037c7526dee

Created March 31, 2016 23:13

Swift shell-scripted SAIO

	Description - proivde shell scripts to automate SAIO is documentation based, time-consuming
	Target - enterprise
	Rationale - SAIO is often broken (documentation based) and is time-consuming for new adopters
	Similarities - Vagrant SAIO, Ansible SAIO
	Work needed - create shell scripts, put in public location, document, adopt for usage
	Technical effort - tiny
	Community adoption - easy (value-added wraparound)
	Payoff - medium (remove barrier, enterprise adoption)
	Time horizon - 1 release cycle

pauldardeau / gist:ac8be66f33617c6683f70d987a501f82

Created March 31, 2016 23:16

Swift XFS Workload/Performance Characteristics

	Description - Swift on XFS performance problems documented and reproducible
	Target - enterprise
	Rationale - pain already noted in community (Mark Seger of HPE)
	Similarities - N/A
	Work needed - huge amount of systematic/detailed testing and experimentation
	Technical effort - large
	Community adoption - medium (XFS tuning advice is easy, structural changes to directory layout is very hard)
	Payoff - medium (shows leadership, helps enterprise adoption)
	Time horizon - 1 release cycle (possibly more)

Paul Dardeau pauldardeau