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refactor: consolidate database pools (#9105)

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# Which Problems Are Solved

Zitadel currently uses 3 database pool, 1 for queries, 1 for pushing
events and 1 for scheduled projection updates. This defeats the purpose
of a connection pool which already handles multiple connections.

During load tests we found that the current structure of connection
pools consumes a lot of database resources. The resource usage dropped
after we reduced the amount of database pools to 1 because existing
connections can be used more efficiently.

# How the Problems Are Solved

Removed logic to handle multiple connection pools and use a single one.

# Additional Changes

none

# Additional Context

part of https://github.com/zitadel/zitadel/issues/8352
This commit is contained in:
Silvan
2025-01-16 12:07:18 +01:00
committed by GitHub
parent 07f74730ac
commit 4645045987
21 changed files with 104 additions and 564 deletions
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3
cmd/key/key.go
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@@ -12,7 +12,6 @@ import (
"github.com/zitadel/zitadel/internal/crypto"
cryptoDB "github.com/zitadel/zitadel/internal/crypto/database"
"github.com/zitadel/zitadel/internal/database"
"github.com/zitadel/zitadel/internal/database/dialect"
"github.com/zitadel/zitadel/internal/zerrors"
)
@@ -124,7 +123,7 @@ func openFile(fileName string) (io.Reader, error) {
}
func keyStorage(config database.Config, masterKey string) (crypto.KeyStorage, error) {
db, err := database.Connect(config, false, dialect.DBPurposeQuery)
db, err := database.Connect(config, false)
if err != nil {
return nil, err
}