Question

我创建了一个数据迁移工具，可以从旧SQL数据库中读取数据，将其转换为更合理的内容，然后将其存储在RavenDB中。

当我尝试在单个Raven会话中编写22500个1KB对象时，出现以下错误：

System.InvalidOperationException: Could not replicate POST operation to secondary node, failover behavior is: AllowReadsFromSecondaries

该消息表明Master Raven实例遇到了致命错误，迁移工具故障转移到Slave Slave Raven实例并尝试写入它。我不知道的是为什么。

背景资料：

.NET 4.0
RavenDB＃2025-Unstable（由于依赖Json.NET而无法使用稳定版本）
使用RavenDB复制捆绑包（正确配置复制）
写入操作包含在TransactionScope中（使用单独的Raven会话在迁移工具的其他位置发生写入）
Windows事件日志中没有错误

登录Master Raven实例包含以下错误：

System.Threading.ThreadAbortException: Thread was being aborted.
   at Microsoft.Isam.Esent.Interop.Implementation.NativeMethods.JetSeek(IntPtr sesid, IntPtr tableid, UInt32 grbit)
   at Microsoft.Isam.Esent.Interop.Implementation.JetApi.JetSeek(JET_SESID sesid, JET_TABLEID tableid, SeekGrbit grbit) in C:\Work\ravendb\SharedLibs\Sources\managedesent-61618\EsentInterop\JetApi.cs:line 3172
   at Microsoft.Isam.Esent.Interop.Api.TrySeek(JET_SESID sesid, JET_TABLEID tableid, SeekGrbit grbit) in C:\Work\ravendb\SharedLibs\Sources\managedesent-61618\EsentInterop\MoveHelpers.cs:line 127
   at Raven.Storage.Esent.StorageActions.DocumentStorageActions.EnsureDocumentIsNotCreatedInAnotherTransaction(String key, Guid txId) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Storage.Esent\StorageActions\Util.cs:line 77
   at Raven.Storage.Esent.StorageActions.DocumentStorageActions.AddDocument(String key, Nullable`1 etag, RavenJObject data, RavenJObject metadata) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Storage.Esent\StorageActions\Documents.cs:line 296
   at Raven.Database.DocumentDatabase.<>c__DisplayClass37.<Put>b__30(IStorageActionsAccessor actions) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Database\DocumentDatabase.cs:line 480
   at Raven.Storage.Esent.TransactionalStorage.Batch(Action`1 action) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Storage.Esent\TransactionalStorage.cs:line 328
   at Raven.Database.DocumentDatabase.Put(String key, Nullable`1 etag, RavenJObject document, RavenJObject metadata, TransactionInformation transactionInformation) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Database\DocumentDatabase.cs:line 468
   at Raven.Database.DocumentDatabase.<>c__DisplayClass67.<Commit>b__64(DocumentInTransactionData doc) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Database\DocumentDatabase.cs:line 654
   at Raven.Storage.Esent.StorageActions.DocumentStorageActions.CompleteTransaction(Guid txId, Action`1 perDocumentModified) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Storage.Esent\StorageActions\General.cs:line 272
   at Raven.Database.DocumentDatabase.<>c__DisplayClass67.<Commit>b__63(IStorageActionsAccessor actions) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Database\DocumentDatabase.cs:line 658
   at Raven.Storage.Esent.TransactionalStorage.ExecuteBatch(Action`1 action) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Storage.Esent\TransactionalStorage.cs:line 374
   at Raven.Storage.Esent.TransactionalStorage.Batch(Action`1 action) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Storage.Esent\TransactionalStorage.cs:line 334
   at Raven.Database.DocumentDatabase.Commit(Guid txId) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Database\DocumentDatabase.cs:line 668
   at Raven.Database.Server.Responders.TransactionCommit.Respond(IHttpContext context) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Database\Server\Responders\TransactionCommit.cs:line 28
   at Raven.Database.Server.HttpServer.DispatchRequest(IHttpContext ctx) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Database\Server\HttpServer.cs:line 582
   at Raven.Database.Server.HttpServer.HandleActualRequest(IHttpContext ctx) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Database\Server\HttpServer.cs:line 347

使用复制事务时，每个会话的写入次数是否有上限？这可能是使用不稳定构建的结果吗？

编辑：在RavenDB Google群组上交叉发布：https://groups.google.com/forum/?fromgroups#!starred/ravendb/FZZ_Q1y59qI

Answer 1

看起来这可能是一个错误。提供了一个repro，所以希望开发团队的人能够调查它。

有关详情，请参阅RavenDB Google Groups主题https://groups.google.com/forum/?fromgroups#!starred/ravendb/FZZ_Q1y59qI。

~~将在更多信息可用时更新此答案。~~

更新：不支持在单个DTC会话中编写这么多对象：https://groups.google.com/d/msg/ravendb/FZZ_Q1y59qI/fimWkX8NZm0J

如何在复制的RavenDB设置中诊断故障转移原因？

1 个答案: