Salamander

  • 234 Posts
  • 453 Comments
Joined 4 years ago
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Cake day: December 19th, 2021

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  • For mander.xyz it has been bot scrapers. That time that you are mentioning it was scraping via the onion front end that I am hosting for easier access over Tor. Yesterday an army of bots scraping via Alibaba cloud servers made the server unusable for a few minutes. The instance would receive a bunch of requests from the same IP range (47.79.0.0/16), and denying that full IP range fixed the problem.

    Some instances implement anti-bot measures. For example, https://sopuli.xyz/ makes use of Anubis. I think that instances behind Cloudfare get some protection too. I am considering using Anubis for mander.xyz, but for now I have just been dealing with this manually as it does not happen too often.


  • So far, I have been able to ‘control’ the CPU use by setting limits to the process that pulls stuff from the database (pool size, CPU, memory).

    This does release some of the CPU for other tasks, but I think that that what creates the lag might actually be the clogged database queries. So, constraining those resources might not solve the lag problem.


  • I can see that since October 13 the CPU use spiked to 100%…

    I just reset the server to check if that would fix it quickly. It don’t think it did.

    I can see the processes that are taking up a lot of CPU (parallell database queries it seems), but I still don’t understand what is causing these and why they have spiked since Oct 13. I will need to investigate.











  • I would give the Letharia dye another try

    Would love to… When I was in Oregon this lichen was super abundant. At the moment I am living in Amsterdam (Netherlands), and I see mostly Xanthoria, Evernia, Rhizocarpon, and a few other lichen species that grow on city trees, but they are very small and spotty, nothing compared to the wolf lichen in Oregon. I do miss the Oregon forests with the old growth sequoia redwood trees and all that lichen.


  • 9ft of snow?! I only experienced such deep snow in an urban setting while living in Connecticut for a year. I spent a few years in Oregon but the snow in the area never got so deep while I was there. When I was in the US I was not yet able to identify many fungi as I was mainly obsessed with animals (especially salamanders) back then, so unfortunately I did not really appreciate the diversity of fungi there. Although once in Oregon I did attempt to dye some socks using a wolf lichen (Letharia vulpina) and a pressure cooker. That did not end well.



  • Cool! I just read their wiki page and it says

    A snowbank fungus, it is most common at higher elevations after snowmelt in the spring.

    Snowbank fungus is a new term for me. Not sure yet what makes a fungus thrive through snow. Maybe they have anti-freeze proteins?

    Does your area get a lot of snow?


  • Alright! Some other tips:

    • Your current microscope is a 160 mm system, so make sure that the objectives are 160 mm and not infinity.
    • Make sure the objectives have an RMS thread
    • Once you move into higher-end objectives, you will have objectives that are specialized. For example, ‘phase contrast’ objectives have a dark ring inside of them. For the olympus brand their name often ends in ‘PL’. These work with bright-field too. My 40/1.30 objective is actually a phase-contrast objective because I did not know this and ChatGPT told me it meant something different 😂 However, the objective does work well for me and I am now considering upgrading to a phase contrast-capable microscope (the BH2), so I made a good choice by accident.