Commit Graph

20 Commits

Author SHA1 Message Date
Martin Holst Swende
794c6133ef
core/rawdb: freezer batch write (#23462)
This change is a rewrite of the freezer code.

When writing ancient chain data to the freezer, the previous version first encoded each
individual item to a temporary buffer, then wrote the buffer. For small item sizes (for
example, in the block hash freezer table), this strategy causes a lot of system calls for
writing tiny chunks of data. It also allocated a lot of temporary []byte buffers.

In the new version, we instead encode multiple items into a re-useable batch buffer, which
is then written to the file all at once. This avoids performing a system call for every
inserted item.

To make the internal batching work, the ancient database API had to be changed. While
integrating this new API in BlockChain.InsertReceiptChain, additional optimizations were
also added there.

Co-authored-by: Felix Lange <fjl@twurst.com>
2021-09-07 12:31:17 +02:00
Martin Holst Swende
5f98020a21
core/rawdb: implement sequential reads in freezer_table (#23117)
* core/rawdb: implement sequential reads in freezer_table

* core/rawdb, ethdb: add sequential reader to db interface

* core/rawdb: lint nitpicks

* core/rawdb: fix some nitpicks

* core/rawdb: fix flaw with deferred reads not being performed

* core/rawdb: better documentation
2021-08-13 11:51:01 +03:00
Martin Holst Swende
9b99e3dfe0
core/rawdb: fix datarace in freezer (#22728)
The Append / truncate operations were racy. When a datafile reaches 2Gb, a new file is needed. For this operation, we require a writelock, which is not needed in the 99.99% of all cases where the data does fit in the current head-file.

This transition from readlock to writelock was incorrect, and as the readlock was released, a truncate operation could slip in between, and truncate the data. This would have been fine, however, the Append operation continued writing as if no truncation had occurred, e.g writing item 5 where item 0 should reside.

This PR changes the behaviour, so that if when we run into the situation that a new file is needed, it aborts, and retries, this time with a writelock.

The outcome of the situation described above, running on this PR, would instead be that the Append operation exits with a failure.
2021-04-26 18:19:07 +02:00
Martin Holst Swende
271e5b7fc9
cmd/geth: add db-command to inspect freezer index (#22633)
This PR makes it easier to inspect the freezer index, which could be useful to investigate things like #22111
2021-04-13 15:45:30 +02:00
Martin Holst Swende
681618275c
core: speed up header import (#21967)
This PR implements the following modifications

- Don't shortcut check if block is present, thus avoid disk lookup
- Don't check hash ancestry in early-check (it's still done in parallel checker)
- Don't check time.Now for every single header

Charts and background info can be found here: https://github.com/holiman/headerimport/blob/main/README.md
With these changes, writing 1M headers goes down to from 80s to 62s.
2021-01-26 12:17:11 +01:00
Péter Szilágyi
5655dce3b8
core/rawdb: only complain loudly if truncating many items 2020-08-25 09:03:14 +03:00
zhangsoledad
bcf19bc4be
core/rawdb: swap tailId and itemOffset for deleted items in freezer (#21220)
* fix(freezer): tailId filenum offset were misplaced

* core/rawdb: assume first item in freezer always start from zero
2020-06-17 09:41:07 +02:00
Marius van der Wijden
2a836bb259
core/rawdb: fix data race between Retrieve and Close (#20919)
* core/rawdb: fixed data race between retrieve and close

closes https://github.com/ethereum/go-ethereum/issues/20420

* core/rawdb: use non-atomic load while holding mutex
2020-04-14 18:13:47 +03:00
Péter Szilágyi
72d5a27a39
core, metrics, p2p: switch some invalid counters to gauges 2019-09-10 14:39:07 +03:00
Christian Muehlhaeuser
57fc1d21e1 cmd/geth, core/rawdb: add missing error checks (#19871)
* Added missing error checks

Add error handling where we assign err a value, but don't check for it being nil.

* core/rawdb: tiny style nit
2019-07-22 10:51:13 +03:00
Péter Szilágyi
b02958b9c5
core, ethdb, metrics, p2p: expose various counter metrics for grafana 2019-06-11 09:49:13 +03:00
Frank Szendzielarz
f9c0e093ed core/rawdb: avoid O_APPEND (#19676)
* Fix file system access for Windows

* Encapsulate file accesses

* Style fixes
2019-06-10 12:45:12 +03:00
Péter Szilágyi
f35975ea21
core/rawdb, eth/downloader: align 64bit atomic fields 2019-05-17 01:45:05 +03:00
Péter Szilágyi
9eba3a9fff
cmd/geth, core/rawdb: seamless freezer consistency, friendly removedb 2019-05-16 17:01:56 +03:00
gary rong
37d280da41
core, cmd, vendor: fixes and database inspection tool (#15)
* core, eth: some fixes for freezer

* vendor, core/rawdb, cmd/geth: add db inspector

* core, cmd/utils: check ancient store path forceily

* cmd/geth, common, core/rawdb: a few fixes

* cmd/geth: support windows file rename and fix rename error

* core: support ancient plugin

* core, cmd: streaming file copy

* cmd, consensus, core, tests: keep genesis in leveldb

* core: write txlookup during ancient init

* core: bump database version
2019-05-16 10:39:34 +03:00
Martin Holst Swende
42c746d6f4
freezer: disable compression on hashes and difficulties (#14)
* freezer: disable compression on hashes and difficulties

* core/rawdb: address review concerns

* core/rawdb: address review concerns
2019-05-16 10:39:33 +03:00
Martin Holst Swende
331de17e4d
core/rawdb: support starting offset for future deletion 2019-05-16 10:39:33 +03:00
gary rong
80469bea0c
all: integrate the freezer with fast sync
* all: freezer style syncing

core, eth, les, light: clean up freezer relative APIs

core, eth, les, trie, ethdb, light: clean a bit

core, eth, les, light: add unit tests

core, light: rewrite setHead function

core, eth: fix downloader unit tests

core: add receipt chain insertion test

core: use constant instead of hardcoding table name

core: fix rollback

core: fix setHead

core/rawdb: remove canonical block first and then iterate side chain

core/rawdb, ethdb: add hasAncient interface

eth/downloader: calculate ancient limit via cht first

core, eth, ethdb: lots of fixes

* eth/downloader: print ancient disable log only for fast sync
2019-05-16 10:39:32 +03:00
Martin Holst Swende
b69bdc2a4f
freezer: implement split files for data
* freezer: implement split files for data

* freezer: add tests

* freezer: close old head-file when opening next

* freezer: fix truncation

* freezer: more testing around close/open

* rawdb/freezer: address review concerns

* freezer: fix minor review concerns

* freezer: fix remaining concerns + testcases around truncation

* freezer: docs

* freezer: implement multithreading

* core/rawdb: fix freezer nitpicks + change offsets to uint32

* freezer: preopen files, simplify lock constructs

* freezer: delete files during truncation
2019-05-16 10:39:30 +03:00
Péter Szilágyi
006c21efc7
cmd, core, eth, les, node: chain freezer on top of db rework 2019-05-16 10:39:29 +03:00