Creative crash with chest loop

[Malachiel87]

Hi i am using 1.15.2 and server crash when a player using a hack for generate chest inside chest ecc i attached the playerdata of the hacker db99c79e-4380-453d-88f9-44b531dc206c.zip

[ds58]

Is there a server crash? I believe this would crash (or slow down significantly) a client's connection, but the server should stay running with little to no performance impact.

The reason for this is the server, asynchronously, has to send large amounts of data to the clients requesting the contents of the chests. It does not impact the actual server performance because, again, it's not run on the main server thread; it is run async.

I can look at improving the detection of these items. However, in my opinion, they are relatively harmless. Especially because they don't cause a "crash" rather a timeout in rare cases where too many requests have been made to the server.

[Malachiel87]

yeah there was a crash and people are unable to join the server for nbt errors Server log: https://gist.github.com/xion87/6846938fb5228e1e5f2123ae9e2231fa

[ds58]

Thanks for the log. I'll look into it

[ds58]

Seems like the plugin CMI is doing something with the chests causing the server to hang. This isn't too surprising as the chests do contain a lot of data.

[ds58]

I will look into creating a check for these types of situations where the items don't necessary have "hacked" NBT tags, nor do they crash clients, but can inherently cause issues with plugins manipulating them.

[Malachiel87]

so is can cmi is trying to save all data on INVSEE inventory?

[ds58]

I am not sure what CMI is doing with the items but it is the reason the server froze.

[Malachiel87]

got another crashed

[Malachiel87]

All these chest/skuller are filled with these items

[Malachiel87]

any news? people are abusing this....

[Malachiel87]

the fun thing that i have also banitem with a check that prevent chest to be put inside to any container and people are still able to do that

[ds58]

CMI seems to be the reason the server is freezing. I don't have a solution to prevent this yet

[ds58]

It may be worth trying this latest build as I introduced some changes which may help. Won't guarantee it, however.

panilla-1.6.0-pre1.zip

[ScuroK]

did you report this to CMI? what exactly is CMI doing?

[Malachiel87]

is not a cmi issue, having more crasher in these day, i have upgraded to 1.16.4. the crasher have these chest He have 4-5 chest filled witht these chest too, and nametags with the same weird name, any way?

[Malachiel87]

Itemfixer option from exploitfixer work fine, but it block also skulls too sadly

[Malachiel87]

Issue still not fixed, it crash with these logs 2021-02-15-3.zip Using latest paper 1.16.5 and panilla 1.6.4

[ds58]

Please reopen if this is still an issue. I am doing issue cleanup.