fix: Add max_batch_size to limit the SyncBatch request sizes #152
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What ❔
Adds a
max_batch_size
setting and uses it to set amax_req_size
limit in the RPC that deals withSyncBatch
.Fixes some of the comments added in #150
Alternative configuration
The size of
SyncBatch
depends on how many blocks are in the batch, plus a fixed size proof. Since we already have a limit for the size of block payloads, ostensibly we could add a limit on the number of blocks in the batch; I used 100 in the protobuf reader if the field was missing. Perhaps this setting is already available somewhere in zksync-era?Why ❔
Tests failed in matter-labs/zksync-era#2340 when I unintentionally enabled the gossiping of
SyncBatch
due to the large size of the requests. It turns out they were either hardcoded constants copied from the block store state gossip (which doesn't depend on the payload size, only the QC), or they wrongly used the block payload limit.