Hi all, since ~Friday I've been experiencing serious performance (pages take a minute or two to load) and sometimes connectivity (connection reset) issues. For example, posting this node has taken at least five minutes so far for exactly those two reasons. I'm somewhat certain it's not just me because it's happened from a few different locations. I've experienced similar issues for the past year or so, but much more intermittently. Is something going on?

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Re: Performance/Connectivity issues?
by Corion (Patriarch) on Mar 22, 2017 at 07:53 UTC

    At least one webserver machine gets hammered by some kind of spider and thus had (or currently, has again) load issues. I thought I had fixed them as of two days ago, but if you're still experiencing the issues, I will look into it again.

      This has just happened again right now, ironically when attempting to vote and then reply to this very thread. Each page took around one minute to load. I'm using www.perlmonks.org as hostname. HTH.

      Thank you, it seems to have cleared up for now :-) I guess I was just unlucky to get that particular machine from DNS every time over the last few days.

Re: Performance/Connectivity issues?
by kcott (Archbishop) on Mar 22, 2017 at 09:03 UTC

    G'day haukex,

    I can confirm part of what you've said. I have experienced connectivity problems and slow response times, with www.perlmonks.org, over the last two days. Over this period, I've used the site for two or three hours during the late afternoon and early evening (my timezone is UTC +11 hours). Here's the issues (as best as I remember them) with my usage over the last couple of days.

    • Around 48 hours ago, I experienced slow response times (one or two minutes for a page to load) towards the end of that session. I persevered with www.perlmonks.org until I logged out.
    • Around 24 hours ago, I was getting slow response times (maybe five minutes), as well as connectivity problems ("Remote server not responding."), from the start of the session. I switched from www.perlmonks.org to www.perlmonks.com: no further problems.
    • Today, I started to log on with www.perlmonks.org. This took many minutes. I immediately switched to www.perlmonks.com: no problems so far.

    For anyone troubleshooting these types of issues, it's probably helpful to let then know which URL you're using as well as the timeframe in which the problem was experienced.

    [As far as I know, there are six URL possibilities: 'perlmonks.'; followed one of 'com', 'net' or 'org'; and optionally preceded by 'www.'. I don't know how those are related to physical (or virtual) servers. If anyone has better information regarding this, please feel free to comment.]

    — Ken

      Thanks for confirming, I was hoping it wasn't just me ;-)

      I don't know how those are related to physical (or virtual) servers.

      All six of the DNS entries you mentioned resolve to the same set of three addresses: 209.197.123.153, 216.92.34.251, and 66.39.54.27 (I think Round-robin DNS is set up). Apparently perlmonks.pair.com only resolves to the first of those three. I was probably using www.perlmonks.org earlier, but I don't know which of those addresses it was resolving to.

Re: Performance/Connectivity issues?
by Anonymous Monk on Mar 22, 2017 at 09:17 UTC

    FWIW I experienced timeout/connection reset with all three domais ( .org/.net/.com ) around 2017-03-21 17:23:50 PST