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Posted by jpluimers on 2019/05/28
Since I keep forgetting this piece of IDE Fix Pack 5.92 released – DelphiFeeds.com
The new version 5.92 now binds
- Ctrl+Alt+Enter to “Find References” and introduces
- Shift+Ctrl+Alt+Enter for “Find Local References”.
No shortcut toggling anymore.
–jeroen
Posted in Delphi, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2019/05/28
Recommended read: [WayBack] Clean Code is a team sport! – writeabout.net.
The picture is of a developer journey taking years to go from fresh to seasoned ending up at exactly the same code: over time learning the sweet spot of coding.
The story continues correlating that journey to handling technical debt and finding the sweet spot between that and business value.
via:
–jeroen
Posted in Agile, Code Quality, Code Review, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2019/05/28
Interesting subject: [WayBack] I am looking for a JSON unmarshaller, that takes the JSON string and apply it to the object (and not take an object and try to apply the JSON to it). E… – Nicholas Ring – Google+
A start by Stefan Glienke: [WayBack] JsonDataObjectUnmarshall — Bitbucket
–jeroen
Posted in Delphi, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2019/05/27
When you get the response “web.archive.org unexpectedly closed the connection” without even returning an HTTP code, but:
then likely there are too many cookies for archive.org or/and web.archive.org: in my case, I had 90 cookies.
Cleaning these cookies out resolved the problem (I used [WayBack] Awesome Cookie Manager for this).
Edit 20231230: Awesome Cookie Manager source repository at [Wayback/Archive] Phatsuo/awesome-cookie-manager: Awesome Cookie Manager.
--jeroen
Posted in Chrome, Google, Internet, InternetArchive, Power User, WayBack machine | Leave a Comment »
Posted by jpluimers on 2019/05/27
For my own memory:
[WayBack] Best Hard Drives for ZFS Server (Updated 2017) | b3n.org
My blog post Best Buy Guides (BBGs) – mux’ blog – Tweakblogs – Tweakers.
ZFS, dedupe and RAM:
I wouldn’t worry so much about the cost of the drives if you have to replace them in a few years. They’re constantly getting bigger and cheaper. If you really need to replace them in 3 years it’s not going to be the end of the world. Just think, a 256GB SSD can be purchased for about $100 today and 3 years ago the same drives were like $400+. To boot, they are faster than they were 3 years ago.
It’s quite possible that by the time you need to be worried about buying replacement drives for your pool you’ll be able to buy a single drive that can hold 1/2 your pool’s data for $100.
Don’t fret it. Buy the SSDs and be happy. Tell your boss you did the analysis and all is well. Just don’t buy those TLC drives. Those seem very scary for ZFS IMO.
…
There are some companies that have forked ZFS and set it up as you describe (separate vdevs for metadata using high-endurance SLC NAND) but there’s nothing like that in OpenZFS at the moment.
I’ve been using it on Leap 42.2 for a while with no problems. Generally I’d guess it should work fine on Leap since it uses a stable LTS kernel.
On Tumbleweed you’d have problems if the kernel updates before the zfs on linux project has released an update version supporting that kernel. So tumbleweed (or any rolling distribution) + zfs certainly seems rather flaky to me.
…
What appeals to me is the ZFS scrub feature. Nothing else really seems to guard against bit-rot / corruption quite like this.
…
It’s not compatible with the new kernel yet. https://github.com/zfsonlinux/zfs/releases
–jeroen
Posted in ESXi6.5, Power User, Virtualization, VMware, VMware ESXi | Leave a Comment »
Posted by jpluimers on 2019/05/27
A while ago, I somehow had a damaged btrfs partition that I found out after the virtualisation host without reason decided to reboot.
I’m not sure what caused that (by now the machine has been retired as it was already getting a bit old), but btrfs was panicking shortly after boot, so the VM as is was unusable.
In the end I had to:
rsync -avloz over as much as I could/etc tree and my home directory for which I hadn’t yet pushed the git repositories).These didn’t work, but might work for others: [WayBack] SDB:BTRFS – openSUSE – How to repair a broken/unmountable btrfs filesystem
–jeroen
Posted in *nix, btrfs, File-Systems, Linux, openSuSE, Power User, SuSE Linux, Tumbleweed | Leave a Comment »
Posted by jpluimers on 2019/05/24
Gelukkig is er een WayBack kopie van de PDF die vroeger op 404 Pagina niet gevonden | KlikAanKlikUit stond.
–jeroen
Posted in LifeHacker, Power User | Leave a Comment »
Posted by jpluimers on 2019/05/24
Some wizardry: [WayBack] vmkfstools | virtualhobbit.
This includes:
vmkfstools -V (yes, capital V is for VMFS rescan, as lowercase v is for verbose)Found after reading [WayBack] Datastore not mounted after reboot of ESXi5.5 |VMware Communities
Then found this: [Wayback] VMware Knowledge Base: Performing a rescan of the storage on an ESXi host (1003988); Using the ESXi Command Line Interface
…
- To search for new VMFS datastores, run this command:
vmkfstools -VNote: This command does not generate any output.
That solved my problem!
# vmkfstools -V # esxcfg-volume --list Scanning for VMFS-3/VMFS-5 host activity (512 bytes/HB, 2048 HBs). VMFS UUID/label: 532cd010-6e8c01d1-45be-001f29022aed/Raid6SSD Can mount: Yes Can resignature: Yes Extent name: naa.600605b00aa054a0ff000021022683ae:1 range: 0 - 1830143 (MB) # esxcfg-volume --mount 532cd010-6e8c01d1-45be-001f29022aed Mounting volume volume 532cd010-6e8c01d1-45be-001f29022aed
And there it was:
# df -h Filesystem Size Used Available Use% Mounted on ... VMFS-5 1.7T 1.6T 169.6G 91% /vmfs/volumes/Raid6SSD ...
Note you can mount non-persistent (--mount) or persistent (--persistent-mount) by both UUID and label, so there are four choices for mounting:
esxcfg-volume --mount UUID esxcfg-volume --mount label esxcfg-volume --persistent-mount UUID esxcfg-volume --persistent-mount label
–jeroen
Posted in ESXi5, ESXi5.1, ESXi5.5, ESXi6, ESXi6.5, Power User, Virtualization, VMware, VMware ESXi | Leave a Comment »
Posted by jpluimers on 2019/05/24
Some tips on pruning entries from the systemd journal:
For stock opensuse, this is also relevant, as it seems to allow indefinite growth: [WayBack] systemd – journald Settings likey need your attention
You can view disk usage with this command:
journalctl --disk-usage
–jeroen
Posted in *nix, Linux, Power User, systemd | Leave a Comment »
Posted by jpluimers on 2019/05/23
Most code I come across is in the red zone, exactly depicting why you want immutable constructs. Immutable constructs will never end-up in the red zone.
Image: [WayBack] Wayback Machine.
The red zone is just one quadrant on the mutability/shareability diagram and getting outside that red zone quadrant is key.
With processor cores now becoming ubiquitous: you cannot get outside of the “Shard” half, so you have to get outside of the “Mutable” half.
Explaining the why and how, is part of a few presentations that Kevlin Henney gave:
Related YouTube videos are below.
–jeroen
Posted in Conference Topics, Conferences, Development, Event, Multi-Threading / Concurrency, Software Development | Leave a Comment »
The Wiert Corner - irregular stream of stuff 