5 months, 5 worlds, all crash and burn. Cannot ever get to 'End game'

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Symmetryc

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Jul 29, 2019
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I've had that issue with block breaking lag. I found that adding 2 G more ram to server goes a long way.
 

zorn

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Jul 29, 2019
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Thanks, we will try this.

Ive actually set up websites before and dealt with a little networking, but id call myself a newbie. Its a pretty deep subject, very complex, i barely know the basics. Unfortunately none of us like to admit we arent experts. ;)

Is cable looping really bad? I think the server owner friend of mine does it, i imagine he thought that it wouldnt matter as we are just 3 people on a server made for more. Its just ic2 cables, correct? Any loop is bad? Like, i set up hv solars on a world once, and snaked the power line in an "S" formation, so that there was not any looping at all. Is it that important to do this? If i had just lined them all up in a big box (oh crap i just realized both the other players did this with basic solars) and run fibre to all of them (say, 20 solars?) would it create big problems? Although, the problems started awhile after they put down those solars. hmm.

Ill see if they will just remove machines and test it, have to find out how it runs tonight.

Thanks again to everyone for the advice and tips.
 

Saice

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Jul 29, 2019
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Out of curiosity, since this annoys me in SSP all the time, couldn't someone use a filler loaded with sand to cover up the lava flow blocks that never go away due to nether pump use?
Sure. Or you could use the ender-thermic pump from extra-öutilities (which replaces pumped blocks by cobblestone, thus avoiding the problem from the start).


You can also use the Advanced Pump depending on what version of GT you are using (if your are using GT) it just deletes flowing lava blocks.

http://ftbwiki.org/Advanced_Pump
 

vScourge

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Jul 29, 2019
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I'd +1 what KirinDave said earlier... if you're playing heavily-modded Minecraft, there's no such thing as truly "stable". Players should play and be creative, but if you don't have someone fairly technical running the server, who can manage what's disallowed, plus do things like analyze logs, narrow problems down, keep very regular backups, even restoring regions when necessary (without rolling back entire world), then you're just asking for loss and heartache.

One example from the server I admin (and play on)... One of my players built an awesome ferry that automatically moved back/forth across a water channel with RedPower frames. At one point I restored that region to a backup made a few hours before. Unfortunately when the backup was saved off his ferry was in mid-move (or so I'm guessing), and loading that backup caused the blocks to get into some zombie state, useless and unbreakable even in creative mode. To fix this I had to use MCEdit on an older, valid backup to save off his working ferry as a template, then load the current world and hand-delete the bogus ferry blocks, then paste the templated ferry back into the world at a valid location. If I hadn't fixed this up, he may have ragequit as well and we would have lost a great player.

I guess I'd suggest before going nuts creatively on any given server, do some homework and make sure it has a good history, and that it has a server admin or two willing to do real, technical care-and-feeding of it for the players. And if you're an admin, biggest advice I'd have is very frequent backups!
 

TangentialThreat

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Jul 29, 2019
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Normally a spawner shuts itself off after there are X number of mobs within range. For a vanilla spawner this is 6 mobs in a 17x9x17 scanning range.

A spawner can be made to run out of control if mobs are moved out of scanning range and collected but not killed. This sometimes happens in vanilla if somebody goes AFK near a grinder; even Etho has wrecked worlds of his by letting cave spiders pile up and then hitting them all with a potion at once resulting in thousands of items and XP.

In FTB we have soul shards which work much faster, run when a player isn't close by and still have the same scanning range as vanilla spawners. It may be strong but can your server handle an infinite number of creepers? I didn't think so.

Common failure modes are melee turtle scripts not restarting (avoid turtles or manage carefully), iron pipe pointed the wrong way (d'oh!), item storage systems overflowing and leaving items on the ground (void pipes), and XP orbs piling up to infinity (avoid loose XP).

Something similar can happen with large tree farms because they can overwhelm your storage and drop so many items on the ground that the server slows down or dies under an avalanche of wood.

If you want I can get off my butt and post a picture of how to set up BC pipes to void things if there's no more space in a chest. You can also set up AE networks to destroy items if there's too much of something..
 

The classless

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Jul 29, 2019
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How rare is it to have a world survive for more than a month? Do most of you play for months and kill a world when you get bored, or do most people end up having worlds crash due to bugs and such?

Right now ive played minecraft for about 5 months with a few friends on a private server. We have had every single world crash due to bugs... apparently. We dont even really know why. We once lost all hostile mobs due to Dimensional Doors mod (actually figured that one out), lost all hostile mobs for some other reason we never figured out, then had our world completely rewrite itself, parts of it anyway, destroying half my base. It basically just created new chunks in huge areas. Mountains cut right in half, etc. Then last world, we just had the server go to 100% CPU and ram usage within a minute or two of reboot, no idea why. Scrap the world and start a new one.

.
Ultimate is the worst mod pack played in this sense it crashed on single player world every 3 weeks and now I have a file dedicated to world reloads because of it and am fearful that my unleashed will crash as bad as this one but it been 3 weeks and it has yet to crash
 

zorn

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Jul 29, 2019
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One last question if anyone can answer: if we all got rid of our chunk loaders and all moved 128 blocks from our base, if it was something we had built in our bases, wouldnt that reduce server load? And then we could at least individually go back to our bases to at least figure out the general area of the problem.

I told my friend about the utilities KirinDave suggested to troubleshoot issues, but he doesnt seem interested.
 

Seraph089

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Jul 29, 2019
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One last question if anyone can answer: if we all got rid of our chunk loaders and all moved 128 blocks from our base, if it was something we had built in our bases, wouldnt that reduce server load? And then we could at least individually go back to our bases to at least figure out the general area of the problem.

I told my friend about the utilities KirinDave suggested to troubleshoot issues, but he doesnt seem interested.
That would certainly help narrow it down. Go to each base one by one and see if any of them cause the lag. If so, you can work on what the actual cause is.

And no offense, but it sounds like your friend shouldn't be running a server if he has no interest in the tools to keep it running well. The things Dave linked are designed for exactly the kinds of problems you're having, any admin should be learn to use them
 

JohnTzimisces

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Jul 29, 2019
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Thanks for the advice 3 or so people who gave me it (I just got out of minor surgery sorry that took so long :p)

Unfortunately I'm in ultimate 1.1.2 so ender thermic isn't an option, gonna try a thermal generator or two and advanced pump, my nether FPS drops are pretty insane. My first attempt was using UU to make a water source block I could place but...quickly found out water flow blocks don't appear. Was getting ready to just try a bucket of oil :p

To the OP, sorry for the semi-hijack.
 

zorn

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Jul 29, 2019
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In case anyone was interested we found the issue, although i wish my server admin had made the changes one at a time, instead of doing them all at once.

He changed three things: removed Portal Gun mod, removed Wireless redstone mod, and put spot loaders in every dimension. Problem solved. Apparently portal gun mod and wireless redstone cause 'world leaks'. Ill miss my portal guns...
 

PoisonWolf

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Jul 29, 2019
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In case anyone was interested we found the issue, although i wish my server admin had made the changes one at a time, instead of doing them all at once.

He changed three things: removed Portal Gun mod, removed Wireless redstone mod, and put spot loaders in every dimension. Problem solved. Apparently portal gun mod and wireless redstone cause 'world leaks'. Ill miss my portal guns...


What the hell are world leaks? Lol.

How many wireless redstones did you guys have running?

Did you guys try getting rid of all your portals first before simply removing the mod?
 

zorn

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Jul 29, 2019
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None of us had any wireless redstone working at all, my friend runs the server and he read online that those mods caused memory leaks. Myabe the 'world leak' was just a way to say the other dimensions would cause memory issues.

No we didnt try just removing portals, i think my friend assumed the mod itself caused problems so he removed it.

This thread is an example of 'world leak'

http://forum.feed-the-beast.com/threads/detected-leaking-worlds-in-memory.12098/page-5

people here said to remove twilight forest, wireless redstone, and mystcraft. We have put spot loaders in every dimension, and apparently should put them any time we make a mystcraft age. So far no more problems.
 
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TangentialThreat

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Jul 29, 2019
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What the hell are world leaks? Lol.

How many wireless redstones did you guys have running?

Did you guys try getting rid of all your portals first before simply removing the mod?

A memory leak is when some piece of information isn't cleared from RAM once it is no longer important.

Java is supposed to garbage collect automatically. It does not do a very good job. One classic example is that chunks of worlds and states of modded crud can persist in memory even after a Minecraft dimension is unloaded. Eventually the server chokes because it is trying to remember dozens of little bits of Mystcraft worlds and things Wrathlamps did (I think they fixed that) and the game isn't sure what's safe to forget for now, leaving it with no leftover memory for new things.

Rebooting clears memory. Placing one spot loader in each dimension and only having a few dimensions is supposed to help. I have not heard of wireless redstone or portal guns being problems in recent versions but I could be wrong.
 
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PoisonWolf

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Jul 29, 2019
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A memory leak is when some piece of information isn't cleared from RAM once it is no longer important.

Java is supposed to garbage collect automatically. It does not do a very good job. One classic example is that chunks of worlds and states of modded crud can persist in memory even after a Minecraft dimension is unloaded. Eventually the server chokes because it is trying to remember dozens of little bits of Mystcraft worlds and things Wrathlamps did (I think they fixed that) and the game isn't sure what's safe to forget for now, leaving it with no leftover memory for new things.

Rebooting clears memory. Placing one spot loader in each dimension and only having a few dimensions is supposed to help. I have not heard of wireless redstone or portal guns being problems in recent versions but I could be wrong.

That's interesting. I've never encountered such problems before. But I think this is likely circumvented by my setup where it auto-reboots (like you said) itself once a day (turtle users who use the default excavate script hates this lol).