nim-codex/codex/stores/maintenance.nim
Eric de88fd2c53
feat: create logging proxy (#663)
* implement a logging proxy

The logging proxy:
- prevents the need to import chronicles (as well as export except toJson),
- prevents the need to override `writeValue` or use or import nim-json-seralization elsewhere in the codebase, allowing for sole use of utils/json for de/serialization,
- and handles json formatting correctly in chronicles json sinks

* Rename logging -> logutils to avoid ambiguity with common names

* clean up

* add setProperty for JsonRecord, remove nim-json-serialization conflict

* Allow specifying textlines and json format separately

Not specifying a LogFormat will apply the formatting to both textlines and json sinks.

Specifying a LogFormat will apply the formatting to only that sink.

* remove unneeded usages of std/json

We only need to import utils/json instead of std/json

* move serialization from rest/json to utils/json so it can be shared

* fix NoColors ambiguity

Was causing unit tests to fail on Windows.

* Remove nre usage to fix Windows error

Windows was erroring with `could not load: pcre64.dll`. Instead of fixing that error, remove the pcre usage :)

* Add logutils module doc

* Shorten logutils.formatIt for `NBytes`

Both json and textlines formatIt were not needed, and could be combined into one formatIt

* remove debug integration test config

debug output and logformat of json for integration test logs

* Use ## module doc to support docgen

* bump nim-poseidon2 to export fromBytes

Before the changes in this branch, fromBytes was likely being resolved by nim-stew, or other dependency. With the changes in this branch, that dependency was removed and fromBytes could no longer be resolved. By exporting fromBytes from nim-poseidon, the correct resolution is now happening.

* fixes to get compiling after rebasing master

* Add support for Result types being logged using formatIt
2024-01-22 23:35:03 -08:00

100 lines
2.8 KiB
Nim

## Nim-Codex
## Copyright (c) 2023 Status Research & Development GmbH
## Licensed under either of
## * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
## * MIT license ([LICENSE-MIT](LICENSE-MIT))
## at your option.
## This file may not be copied, modified, or distributed except according to
## those terms.
## Store maintenance module
## Looks for and removes expired blocks from blockstores.
import pkg/chronos
import pkg/questionable
import pkg/questionable/results
import ./repostore
import ../utils/timer
import ../utils/asynciter
import ../clock
import ../logutils
import ../systemclock
const
DefaultBlockMaintenanceInterval* = 10.minutes
DefaultNumberOfBlocksToMaintainPerInterval* = 1000
type
BlockMaintainer* = ref object of RootObj
repoStore: RepoStore
interval: Duration
timer: Timer
clock: Clock
numberOfBlocksPerInterval: int
offset: int
proc new*(
T: type BlockMaintainer,
repoStore: RepoStore,
interval: Duration,
numberOfBlocksPerInterval = 100,
timer = Timer.new(),
clock: Clock = SystemClock.new()
): BlockMaintainer =
## Create new BlockMaintainer instance
##
## Call `start` to begin looking for for expired blocks
##
BlockMaintainer(
repoStore: repoStore,
interval: interval,
numberOfBlocksPerInterval: numberOfBlocksPerInterval,
timer: timer,
clock: clock,
offset: 0)
proc deleteExpiredBlock(self: BlockMaintainer, cid: Cid): Future[void] {.async.} =
if isErr (await self.repoStore.delBlock(cid)):
trace "Unable to delete block from repoStore"
proc processBlockExpiration(self: BlockMaintainer, be: BlockExpiration): Future[void] {.async} =
if be.expiration < self.clock.now:
await self.deleteExpiredBlock(be.cid)
else:
inc self.offset
proc runBlockCheck(self: BlockMaintainer): Future[void] {.async.} =
let expirations = await self.repoStore.getBlockExpirations(
maxNumber = self.numberOfBlocksPerInterval,
offset = self.offset
)
without iter =? expirations, err:
trace "Unable to obtain blockExpirations iterator from repoStore"
return
var numberReceived = 0
for maybeBeFuture in iter:
if be =? await maybeBeFuture:
inc numberReceived
await self.processBlockExpiration(be)
await sleepAsync(50.millis)
# If we received fewer blockExpirations from the iterator than we asked for,
# We're at the end of the dataset and should start from 0 next time.
if numberReceived < self.numberOfBlocksPerInterval:
self.offset = 0
proc start*(self: BlockMaintainer) =
proc onTimer(): Future[void] {.async.} =
try:
await self.runBlockCheck()
except CatchableError as exc:
error "Unexpected exception in BlockMaintainer.onTimer(): ", msg=exc.msg
self.timer.start(onTimer, self.interval)
proc stop*(self: BlockMaintainer): Future[void] {.async.} =
await self.timer.stop()