php小编草莓给大家带来了一篇关于Google Cloud Spanner错误的解决方案。在使用Google Cloud Spanner时,有时会遇到“会话池无效”的错误。这个错误通常是由于连接池配置不正确或者超出了限制导致的。在本文中,我们将详细介绍如何识别和解决这个问题,让你的应用程序能够顺利使用Google Cloud Spanner服务。
我有以下使用 Spanner 库的 Go 代码:
package main import ( "log/slog" "log" "fmt" "context" "cloud.google.com/go/spanner" ) func createClient(ctx context.Context, db string) (*spanner.Client, error) { sessionPoolConfig := spanner.SessionPoolConfig{ TrackSessionHandles: true, InactiveTransactionRemovalOptions: spanner.InactiveTransactionRemovalOptions{ ActionOnInactiveTransaction: spanner.WarnAndClose, }, } dataClient, err := spanner.NewClientWithConfig( ctx, db, spanner.ClientConfig{SessionPoolConfig: sessionPoolConfig}, ) if err != nil { slog.Error("failed to create the spanner client", "err", err) return nil, err } defer dataClient.Close() _ = dataClient return dataClient, nil } var dbLink = "projects/PROJECT_NAME/instances/INSTANCE_NAME/databases/DATABASE_NAME" func main() { ctx := context.Background() snapperClient, err := createClient(ctx, dbLink) if err != nil { log.Fatalf("failed to create a spanner client, error=%s", err.Error()) } row, err := spannerClient.Single().ReadRow(ctx, "DATA_TABLE", spanner.Key{THE_KEY}, []string{"THE_COLUMN"}) if err != nil { slog.Error("failed to get the DATA from spanner", "error", err.Error()) return nil, err } ... }
这会导致以下错误日志:
2023/11/30 22:40:03 ERROR failed to get the DATA from spanner id=4 error="spanner: code = \"InvalidArgument\", desc = \"invalid session pool\""
我不相信该服务器是否能够访问 Google Cloud Spanner 指定的数据库,但我没有收到 Spanner 客户端创建错误。如何修复此 invalid session pool
错误?invalid session pool
错误?
您在返回之前关闭 createClient
内部的客户端。删除 defer dataClient.Close()
createClient
内部的客户端。删除 defer dataClient.Close()
它应该按您的预期工作。🎜
func createClient(ctx context.Context, db string) (*spanner.Client, error) { sessionPoolConfig := spanner.SessionPoolConfig{ TrackSessionHandles: true, InactiveTransactionRemovalOptions: spanner.InactiveTransactionRemovalOptions{ ActionOnInactiveTransaction: spanner.WarnAndClose, }, } dataClient, err := spanner.NewClientWithConfig( ctx, db, spanner.ClientConfig{SessionPoolConfig: sessionPoolConfig}, ) if err != nil { slog.Error("failed to create the spanner client", "err", err) return nil, err } // Remove this defer dataClient.Close() // Also this isn't doing anything _ = dataClient return dataClient, nil }
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