[bugfix] add workaround for Xsqlite_interrupt() permanently breaking connection (#2731)

This commit is contained in:
kim 2024-03-07 13:56:33 +00:00 committed by tobi
parent 7bc536d1f7
commit 64187859c4

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@ -18,6 +18,7 @@
package bundb
import (
"database/sql/driver"
"errors"
"github.com/jackc/pgx/v5/pgconn"
@ -75,6 +76,27 @@ func processSQLiteError(err error) error {
return errBusy
case sqlite3.SQLITE_BUSY_TIMEOUT:
return db.ErrBusyTimeout
// WORKAROUND:
// text copied from matrix dev chat:
//
// okay i've found a workaround for now. so between
// v1.29.0 and v1.29.2 (modernc.org/sqlite) is that
// slightly tweaked interruptOnDone() behaviour, which
// causes interrupt to (imo, correctly) get called when
// a context is cancelled to cancel the running query. the
// issue is that every single query after that point seems
// to still then return interrupted. so as you thought,
// maybe that query count isn't being decremented. i don't
// think it's our code, but i haven't ruled it out yet.
//
// the workaround for now is adding to our sqlite error
// processor to replace an SQLITE_INTERRUPTED code with
// driver.ErrBadConn, which hints to the golang sql package
// that the conn needs to be closed and a new one opened
//
case sqlite3.SQLITE_INTERRUPT:
return driver.ErrBadConn
}
return err