The primary effect of this change is to simplify the implementation of the
priority mempool to eliminate an unbounded heap growth observed by Vega team
when it was enabled in their testnet. It updates and fixes#8775.
The main body of this change is to remove the auxiliary indexing structures,
and use only the concurrent list structure (the same as the legacy mempool) to
maintain both gossip order and priority.
This means that operations that require priority information, such as block
updates and insert-time evictions, require a linear scan over the mempool.
This tradeoff greatly simplifies the code and eliminates the long-term heap
load, at the cost of some extra CPU and short-lived working memory during
CheckTx and Update calls.
Rough benchmark results:
- This PR:
BenchmarkTxMempool_CheckTx-10 486373 2271 ns/op
- Original priority mempool implementation:
BenchmarkTxMempool_CheckTx-10 500302 2113 ns/op
- Legacy (v0) mempool:
BenchmarkCheckTx-10 364591 3571 ns/op
These benchmarks are not a good proxy for production load, but at least suggest
that the overhead of the implementation changes are not cause for concern.
In addition:
- Rework synchronization so that access to shared data structures is safe.
Previously shared locks were used to exclude block updates during calls that
update mempool state. Now access is properly exclusive where necessary.
- Fix a bug in the recheck flow, where priority updates from the application
were not correctly reflected in the index structures.
- Eliminate the need for separate recheck cursors during block update. This
avoids the need to explicitly invalidate elements of the concurrent list,
which averts the dependency cycle that led to objects being pinned.
- Clean up, clarify, and fix inaccuracies in documentation comments throughout
the package.
Co-authored-by: William Banfield <4561443+williambanfield@users.noreply.github.com>
This test was made flakey by #8839. The cooldown period means that the node in the test will not try to reconnect as quickly as the test expects. This change makes the cooldown shorter in the test so that the node quickly reconnects.
(cherry picked from commit 5274f80de4)
Co-authored-by: William Banfield <4561443+williambanfield@users.noreply.github.com>
Co-authored-by: Sam Kleinman <garen@tychoish.com>
When testing rollback feature in the Cosmos SDK, we found that the app hash
in Tendermint after rollback was the value after the latest block, rather than
before it.
Co-authored-by: Callum Waters <cmwaters19@gmail.com>
(cherry picked from commit 8a238fdcb4)
Co-authored-by: yihuang <huang@crypto.com>
* build: Make sure to test packages with external tests (#7608)
The test filter was looking for "TestGoFiles", which does not include tests in
a separate package (e.g., "package foo_test" for "package foo").
This caused several packages not to be tested in CI, including:
github.com/tendermint/tendermint/abci/client
github.com/tendermint/tendermint/crypto
github.com/tendermint/tendermint/crypto/tmhash
github.com/tendermint/tendermint/internal/eventbus
github.com/tendermint/tendermint/internal/evidence
github.com/tendermint/tendermint/internal/inspect
github.com/tendermint/tendermint/internal/jsontypes
github.com/tendermint/tendermint/internal/libs/protoio
github.com/tendermint/tendermint/internal/libs/sync
github.com/tendermint/tendermint/internal/p2p/pex
github.com/tendermint/tendermint/internal/pubsub
github.com/tendermint/tendermint/internal/pubsub/query
github.com/tendermint/tendermint/internal/pubsub/query/syntax
github.com/tendermint/tendermint/internal/state/indexer
github.com/tendermint/tendermint/internal/state/indexer/block/kv
github.com/tendermint/tendermint/libs/json
github.com/tendermint/tendermint/libs/log
github.com/tendermint/tendermint/libs/os
github.com/tendermint/tendermint/light
github.com/tendermint/tendermint/light/provider/http
github.com/tendermint/tendermint/privval/grpc
github.com/tendermint/tendermint/proto/tendermint/blocksync
github.com/tendermint/tendermint/proto/tendermint/consensus
github.com/tendermint/tendermint/proto/tendermint/statesync
github.com/tendermint/tendermint/rpc/client
github.com/tendermint/tendermint/rpc/client/mock
github.com/tendermint/tendermint/test/e2e/tests
github.com/tendermint/tendermint/test/fuzz/mempool
github.com/tendermint/tendermint/test/fuzz/p2p/secretconnection
github.com/tendermint/tendermint/test/fuzz/rpc/jsonrpc/server
Updates #7626 and #7634.
(cherry picked from commit aea428d322)
* Fix build tags to satisfy Go 1.16.
Co-authored-by: M. J. Fromberger <fromberger@interchain.io>
M. J. Fromberger
William Banfield
mergify[bot]
Callum Waters
Sam Kleinman
Ethan Reesor
Gui