Just for some analysis purpose i need to know what can be the maximum size limit of a block can have like 2MB or 5MB and is there any doc how we can customise it as per our need if its possible?
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1for parachains it appears to be 5MB as mentioned here substrate.stackexchange.com/a/5239/83– Luke SchoenJan 31 at 21:10
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1 Answer
The block size is controlled in different ways. From the runtime you can set the maximum block size by setting the BlockLength. The block builder is also tracking the block size and by default aborts at around 4.5MiB, this can be changed by this function. The upper maximum is controlled by the maximum network package size, which is 16MiB.
When you are writing a parachain, the maximum block size is depending on the maximum PoV size. The maximum PoV size is controlled by the relay chain governance and thus, it is dynamic.
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There is a maximum size one network message can be, that is what I wrongly named "maximum network package size"– bkchrFeb 7 at 8:35
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Is that a libp2p limit? Given the numbers 16 MiB I doubt you're talking about a limit of the underlying protocols (http/tcp/ip) Feb 7 at 13:36
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