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Add block receive height limit #1870

Merged
merged 20 commits into from
Sep 6, 2020
Merged

Add block receive height limit #1870

merged 20 commits into from
Sep 6, 2020

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shargon
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@shargon shargon commented Aug 24, 2020

Close #1859

@shargon shargon requested a review from erikzhang August 24, 2020 11:31
shargon
shargon commented Aug 24, 2020
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src/neo/Ledger/Blockchain.cs Outdated Show resolved Hide resolved
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Can't we just accept blocks lower than the current height + 500? It is impossible for us to request a block higher than the current height + 500.

@shargon
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shargon commented Aug 25, 2020

Drop blocks higher than the current height + 500? It's ok for me, but also it will require to remove this blocks from known Hashes.

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  1. Drop blocks higher than the current height + 500.
  2. Block nodes that send blocks with different hashes at the same height.

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shargon commented Aug 26, 2020 •
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Drop blocks higher than the current height + 500.

I will add this before append it to the knownHashes.

Block nodes that send blocks with different hashes at the same height.

We can do this in #1811 It could be done easy here

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shargon commented Aug 31, 2020

@erikzhang Ready to merge?

@shargon shargon changed the title Add block cache unverified limit Add block receive height limit Sep 1, 2020
@shargon shargon merged commit 5bea103 into neo-project:master Sep 6, 2020
@shargon shargon deleted the block-cache-limit branch September 6, 2020 13:48
@danwbyrne danwbyrne mentioned this pull request Dec 18, 2020
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@danwbyrne danwbyrne mentioned this pull request Dec 29, 2020
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ShawnYun pushed a commit to ShawnYun/neo that referenced this pull request Jan 8, 2021
@shargon @erikzhang
Add block receive height limit (neo-project#1870)
9893c11 
* Add block cache limit

* Remove known hashes

* Optimize

* Update Blockchain.cs

* Clean code

* Rename method

* Prevent process far blocks

* Block ACL

* Remove size control

neo-project#1870 (comment)

* Move knownHashes

* Remove no sender

* Rename

* Rename

* Update RemoteNode.ProtocolHandler.cs

Co-authored-by: erikzhang <erik@neo.org>
@danwbyrne danwbyrne mentioned this pull request Jan 11, 2021
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cloud8little pushed a commit to cloud8little/neo that referenced this pull request Jan 24, 2021
@shargon @erikzhang @cloud8little
Add block receive height limit (neo-project#1870)
a77cf72 
* Add block cache limit

* Remove known hashes

* Optimize

* Update Blockchain.cs

* Clean code

* Rename method

* Prevent process far blocks

* Block ACL

* Remove size control

neo-project#1870 (comment)

* Move knownHashes

* Remove no sender

* Rename

* Rename

* Update RemoteNode.ProtocolHandler.cs

Co-authored-by: erikzhang <erik@neo.org>
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@ShawnYun ShawnYun ShawnYun left review comments

@Qiao-Jin Qiao-Jin Qiao-Jin left review comments

@erikzhang erikzhang erikzhang approved these changes

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Add a size limit to block_cache_unverified.
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@shargon @erikzhang @ShawnYun @Qiao-Jin