Posts by szbalint@x0r.be
(DIR) Post #AafqXGtApEwNIoPYuG by szbalint@x0r.be
2023-10-11T21:58:15Z
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Will HAProxy act on the client timeout?No.The connection is still active, and HAProxy merely feeds the outgoing connection send buffer. There is data there pending, so HAProxy thinks the client is just slow (which is not a timeout).Unfortunately the default tcp retransmit timeout in Linux is around 900+ seconds. (retries2 = 15).But how would this show up as a server timeout?If the protocol is HTTP/2, then let’s say that HAProxy distributes…
(DIR) Post #AafqXItbMcTHWicvqq by szbalint@x0r.be
2023-10-11T22:01:50Z
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…two requests to the same server.When the client is very slow (or gone without a trace), HAProxy can’t read more from the receive buffer of the connection between HAProxy and the server. Where would it put this data?So if HAProxy made two requests to the same server, the first response takes ages to transfer - then due to head-of-line blocking it can’t read the 2nd HTTP response. The server timeout applies to this, and you see server fails in your metrics.
(DIR) Post #AafqXKxvfV7ZwifPsG by szbalint@x0r.be
2023-10-11T22:05:13Z
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This makes sense. HAProxy should not keep responses in idle state for longer than defined in the server timeout.However in this case this was indirectly caused by the client.Therefor it’s super important to set both TCP keepalives to a relatively low value (eg 60s instead of the default 2h) and to set tcp user timeout (tcp-ut in the HAProxy config) to somewhere above when the tcp keepalive (and retries) would finish.
(DIR) Post #AafqXNEfEFhCzCVoEi by szbalint@x0r.be
2023-10-11T22:06:33Z
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(TCP keepalives only cover parts of the tcp connection timeout scenarios, this is why the need for “tcp user timeout”)There you go, now you know more about HAProxy edge-case scenarios than many SREs.
(DIR) Post #AantD2YxkX4q7wz8XA by szbalint@x0r.be
2023-10-15T19:14:59Z
0 likes, 1 repeats
First polish exit polls put opposition coaltion configuration at 248 seats, above the 231 needed to form a government.
(DIR) Post #AbC4gYlbBX9gLXmxCy by szbalint@x0r.be
2023-10-27T11:17:14Z
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@mjg59 i’d buy a copy for every technical person at work
(DIR) Post #Ai0GWeJZ0BDBVNVGSW by szbalint@x0r.be
2024-04-23T07:22:41Z
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Scene: it’s winter - helsinki finlandWinter boots, snow, public transportSuddenly there is a person in swimsuit and sunglasses offering sunscreen“Oh I’m from 100 years in the future. Take climate action now”
(DIR) Post #Ai4h59PNHG6HE8AnZI by szbalint@x0r.be
2024-04-24T07:24:43Z
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I’m hiring for an SRE in Vienna, Austria: https://www.willhaben.at/jobs/job/site-reliability-engineer-m-f-d/12940012#getfedihired
(DIR) Post #Ajb6W1zprP8QLvEKVk by szbalint@x0r.be
2024-07-04T20:04:23Z
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@ajroach42 you’ve attained seniority
(DIR) Post #AleMxt0c8smBYf3ZAG by szbalint@x0r.be
2024-09-04T05:32:06Z
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Ah i was scratching my head wondering if they wanted something more than RPKI and then i read this:“In Europe, according to the White House's roadmap, some 70 percent of BGP routes have published ROAs and are ROV-valid. Elsewhere, adoption is lower. In the US, it's only 39 percent, “Yup, that’s why i thought RPKI is just a thing people do, i was coming from an EU perspectivehttps://geeknews.chat/@theregister/113076028485905665
(DIR) Post #AnSmxeIGkY5NtL6IXw by szbalint@x0r.be
2024-10-28T11:16:01Z
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@strypey @baldur I guess my view is more along the lines of “Asgard is its people not a place”
(DIR) Post #AnvpMsrIT4GBlMWseu by szbalint@x0r.be
2024-11-11T11:29:33Z
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@stux Trouble in Paradise?
(DIR) Post #Ao2r0xuWZ0iD4kR0Pg by szbalint@x0r.be
2024-11-14T20:14:15Z
1 likes, 0 repeats
@cwebber @djsundog it means 50 people are going to reply to this thread, and the people replying do not see a lot of the other replies
(DIR) Post #AvYZoVBfJZOwEGtLyS by szbalint@x0r.be
2025-06-27T03:43:18Z
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Alchemy is only ever going to get better and it is improving every year.Soon Alchemy will make goldminers obsolete.
(DIR) Post #AvYZodJP6gLRQaZe9A by szbalint@x0r.be
2025-06-27T03:44:32Z
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Some very smart people are very into Alchemy, you would not doubt distinguished experts such as Sir Isaac Newton, head of The Royal Mint, would you?
(DIR) Post #AvYZoljZnG29Y4sf3I by szbalint@x0r.be
2025-06-27T03:45:25Z
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Fear not the environmental impact of Alchemy. Those fumes are harmless.
(DIR) Post #AvYZouRpOcBUZde78a by szbalint@x0r.be
2025-06-27T03:47:42Z
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I require several tons of various metals as a capital investment, but fear not for I will be able to produce gold in the next year!
(DIR) Post #AyV4qLfX2PTfz3gpHM by szbalint@x0r.be
2025-07-28T17:58:10Z
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I’ve been analyzing this AI phenomenon over the last years, the environmental aspects, the economics of it, the psychology and philosophy of science aspects, the information warfare and abuse.And i think after peeling back five layers from like a particularly gnarly onion, I’ve arrived at the core of it:AI stands for anti-intellectualism.The LLM stuff is the crest of this anti-intellectual wave that’s been gathering force for the past decade or two.
(DIR) Post #AzE9x7KxxpULRiJWpU by szbalint@x0r.be
2025-10-15T07:48:08Z
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Debt cutting is really stupid.Once sentence summary is that debt when used well is an investment that has a larger return than the cost of interest.A huge number of government programmes are like that, in health topics, education, infrastructure etchttps://polyglot.city/@Stoori/115372890033785040
(DIR) Post #B05lZP9acSFuGlii5A by szbalint@x0r.be
2025-11-07T09:39:56Z
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I do not like the term enshittified, because it describes a state and not the underlying reason for it.Maybe monopolified or oligarchofied or something like that would be better?