Well that is slightly irritating

fivemack · 2018-11-14, 08:08

The recent factordb upgrade seems to have lost the connectivity information for all the sequences.

So when I try to collect 25 sequences automatically, each of the queries has to recompute the sequence from scratch, and I get thrown out after eighteen for using too much database CPU time. I'm used to getting thrown out for adding too many IDs when submitting my results, but being unable to collect new work in reasonable chunks is somewhat irritating.

yoyo · 2018-11-14, 21:29

In the background we are going through all open sequences to recreate them in factordb.
But it will need some more days.
On the blue page you can check the last update time of a sequence.

Stargate38 · 2018-11-15, 16:31

You're right about the irritating part. I had the same problem with some sequences starting >10⁹ that I ran, such as 122104081182219999328₁₀=Protoceratops₃₆, which has over 6400 terms. It's the longest sequence that I've ever run. It took 3 minutes for it to be recomputed. Something similar happened with the other sequences I've run over the years, such as 4198862272 (even though it has less than 1000 terms).

LaurV · 2018-11-16, 07:21

Now we know who spams the DB...

Stargate38 · 2018-11-17, 23:15

It's not me. I only do Aliquot sequences, and they're not that frequent.

LaurV · 2018-11-19, 05:27

That was a joke, not a real accusation. Therefore the "

" sign.

There is no way for me to know who is spamming the DB, as I am not in the "privileged" list, and I have no more rights than you have, but I am still unhappy about the way the DB is managed, and I won't miss an opportunity to comment about, even if that means upsetting few people/gods here/there. It is not enough to offer the available space and few daemons/elves running factoring jobs and forget about it. Proper maintenance and a user/credential system will solve a lot of these problems. Not any idiot should be allowed to add factors in the db without proper authentication.

On the other hand, queuing aliquot sequences (or any sequence) starting with 20-80 digits have no value, and it will do nothing except loading a lot of small composites in the DB and giving work to the elves (who could otherwise do more important jobs). Such sequences can be done locally with a copy of yafu and aliqueit, where you have the liberty to use pari or perl or a batch file to run a lot of them, they are faster, take only seconds to either terminate or reach a point where they become interesting (like 100 digits whatever) and then, if they are interesting, be reported to the DB.

A sequence with 6400 terms, well... YES, that IS interesting. But other "Protoceratops" sequences are not (haha, buddy, I think you just coined a term!), and I think that such queries should not be accepted by the DB from anonymous users (nothing personal neither talking about you, I was talking generally).

chris2be8 · 2018-11-20, 16:35

At present most of the spam is of the form (14477752*41##+739)/613577 (just look at http://factordb.com/listtype.php?t=3...ge=100&start=0 ). I'm working on numbers in the range from 70-79 digits but can't clear it as fast as it arrives.

If anyone wants to help 78 digit numbers would be a good target.

Chris

Stargate38 · 2018-11-21, 00:54

This is where I got "Protoceratops" from:

http://www.factordb.com/index.php?sh...345291&base=36

It's the starting number for that sequence. I usually label my sequences with the base-36 value, but only if it spells out something interesting. Usually I stop a sequence when it hits 120 digits, but there are some exceptions.

richs · 2018-11-21, 23:17

Quote:

Originally Posted by chris2be8

At present most of the spam is of the form (14477752*41##+739)/613577 (just look at http://factordb.com/listtype.php?t=3...ge=100&start=0 ). I'm working on numbers in the range from 70-79 digits but can't clear it as fast as it arrives.

If anyone wants to help 78 digit numbers would be a good target.

Chris

I pointed a core at the 78 digit numbers early today.

chris2be8 · 2018-11-22, 16:52

Thanks.

Chris

richs · 2018-11-25, 03:25

Quote:

Originally Posted by richs

I pointed a core at the 78 digit numbers early today.

Approx 2400 78 digit composites factored in 77 hours.

2018-11-14, 08:08	#1
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 7×911 Posts	Well that is slightly irritating The recent factordb upgrade seems to have lost the connectivity information for all the sequences. So when I try to collect 25 sequences automatically, each of the queries has to recompute the sequence from scratch, and I get thrown out after eighteen for using too much database CPU time. I'm used to getting thrown out for adding too many IDs when submitting my results, but being unable to collect new work in reasonable chunks is somewhat irritating.

2018-11-19, 05:27	#6
LaurV Romulan Interpreter Jun 2011 Thailand 3·3,049 Posts	That was a joke, not a real accusation. Therefore the "" sign. There is no way for me to know who is spamming the DB, as I am not in the "privileged" list, and I have no more rights than you have, but I am still unhappy about the way the DB is managed, and I won't miss an opportunity to comment about, even if that means upsetting few people/gods here/there. It is not enough to offer the available space and few daemons/elves running factoring jobs and forget about it. Proper maintenance and a user/credential system will solve a lot of these problems. Not any idiot should be allowed to add factors in the db without proper authentication. On the other hand, queuing aliquot sequences (or any sequence) starting with 20-80 digits have no value, and it will do nothing except loading a lot of small composites in the DB and giving work to the elves (who could otherwise do more important jobs). Such sequences can be done locally with a copy of yafu and aliqueit, where you have the liberty to use pari or perl or a batch file to run a lot of them, they are faster, take only seconds to either terminate or reach a point where they become interesting (like 100 digits whatever) and then, if they are interesting, be reported to the DB. A sequence with 6400 terms, well... YES, that IS interesting. But other "Protoceratops" sequences are not (haha, buddy, I think you just coined a term!), and I think that such queries should not be accepted by the DB from anonymous users (nothing personal neither talking about you, I was talking generally). Last fiddled with by LaurV on 2018-11-19 at 05:39

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2018-11-14, 21:29	#2
yoyo Oct 2006 Berlin, Germany 593 Posts	In the background we are going through all open sequences to recreate them in factordb. But it will need some more days. On the blue page you can check the last update time of a sequence.

2018-11-15, 16:31	#3
Stargate38 "Daniel Jackson" May 2011 14285714285714285714 633₁₀ Posts	You're right about the irritating part. I had the same problem with some sequences starting >10⁹ that I ran, such as 122104081182219999328₁₀=Protoceratops₃₆, which has over 6400 terms. It's the longest sequence that I've ever run. It took 3 minutes for it to be recomputed. Something similar happened with the other sequences I've run over the years, such as 4198862272 (even though it has less than 1000 terms).

2018-11-16, 07:21	#4
LaurV Romulan Interpreter Jun 2011 Thailand 3·3,049 Posts	Now we know who spams the DB...

2018-11-17, 23:15	#5
Stargate38 "Daniel Jackson" May 2011 14285714285714285714 3×211 Posts	It's not me. I only do Aliquot sequences, and they're not that frequent.

2018-11-20, 16:35	#7
chris2be8 Sep 2009 3·659 Posts	At present most of the spam is of the form (14477752*41##+739)/613577 (just look at http://factordb.com/listtype.php?t=3...ge=100&start=0 ). I'm working on numbers in the range from 70-79 digits but can't clear it as fast as it arrives. If anyone wants to help 78 digit numbers would be a good target. Chris

2018-11-21, 00:54	#8
Stargate38 "Daniel Jackson" May 2011 14285714285714285714 3×211 Posts	This is where I got "Protoceratops" from: http://www.factordb.com/index.php?sh...345291&base=36 It's the starting number for that sequence. I usually label my sequences with the base-36 value, but only if it spells out something interesting. Usually I stop a sequence when it hits 120 digits, but there are some exceptions.

2018-11-22, 16:52	#10
chris2be8 Sep 2009 1977₁₀ Posts	Thanks. Chris