Data race on close #2249
Description
Describe the bug
We encountered a data race in our automated tests. It is potentially difficult to replicate but here is the stack trace.
WARNING: DATA RACE
Read at 0x00c000b64d30 by goroutine 2204:
runtime.chansend()
/opt/hostedtoolcache/go/1.25.5/x64/src/runtime/chan.go:176 +0x0
github.com/dgraph-io/badger/v4.(*DB).sendToWriteCh()
/home/runner/go/pkg/mod/github.com/dgraph-io/badger/[email protected]/db.go:904 +0x3c4
github.com/dgraph-io/badger/v4.(*Txn).commitAndSend()
/home/runner/go/pkg/mod/github.com/dgraph-io/badger/[email protected]/txn.go:593 +0x15d8
github.com/dgraph-io/badger/v4.(*Txn).Commit()
/home/runner/go/pkg/mod/github.com/dgraph-io/badger/[email protected]/txn.go:663 +0x218
Previous write at 0x00c000b64d30 by goroutine 1311:
runtime.closechan()
/opt/hostedtoolcache/go/1.25.5/x64/src/runtime/chan.go:414 +0x0
github.com/dgraph-io/badger/v4.(*DB).close()
/home/runner/go/pkg/mod/github.com/dgraph-io/badger/[email protected]/db.go:550 +0x31c
github.com/dgraph-io/badger/v4.(*DB).Close.func1()
/home/runner/_work/defradb/defradb/internal/db/store.go:149 +0x2c5
To Reproduce
Steps to reproduce the behavior:
Test badger with -race.
Expected behavior
No data race present.
Screenshots
N/A
Environment
Runner info available here: https://github.com/sourcenetwork/defradb/actions/runs/20442873100/job/58739759303?pr=4212
Additional context
N/A