我在Azure Web Portal中创建了一个同步组，双向sycn向上和向下到本地PC，同步组在过去几周内运行良好但今天它突然只向下同步（从Azure SQL下载数据）数据库）。
我已检查同步日志，但没有警告/错误。甚至在它停止上传数据之前，偶数日志似乎正常：
同步在21.95秒内成功完成。上传：应用了4个更改下载：应用了7个更改有关详细信息，请向客户支持提供跟踪ID“2dfb1462-23bc-4acd-a9fb-4d9b2cd3143a”。
同步在21.61秒内成功完成。上传：应用了22个更改下载：应用了28个更改有关详细信息，请向客户支持提供跟踪ID“dfaf910d-92b9-469a-ab24-6e52adc56361”。
同步在19.87秒内成功完成。上传：0更改已应用下载：已应用2个更改有关详细信息，请向客户支持提供跟踪ID“e38afca8-d519-4c9e-8379-422a03b02050”。
同步在26.96秒内成功完成。上传：0更改应用下载：应用了38个更改有关详细信息，请向客户支持提供跟踪ID“1674233f-3b0e-4328-9ae1-353433ec3b7a”。
然后它再也没有上传了......
有没有人遇到过这个问题？我尝试重新启动本地PC，SQL数据库和同步代理，但仍然没有帮助。谢谢！
更新： 我已启用客户端SQL Sync Agent日志记录，并在每次同步时显示日志：
ThreadId:19. Dispatcher calling GetRequest
ThreadId:19. Dispatcher calling GetRequest
ThreadId:19. Dispatcher calling PutRequest
ThreadId:19. Dispatcher started. Waiting
ThreadId:19. Dispatcher calling GetRequest
ThreadId:20. GetRequest finished. RequestId:c1d40bea-fe02-49c6-8e0b-80084128121e
CommandAndControlClient 8/4/2014 17:25:21 id:CommandAndControlClient_GetRequest, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, agentId:61dba401-b646-4108-ba6b-b06bbccacee9, agentInstanceId:deb2662a-482c-440a-90dd-6e4c340a4c93, taskId:c1d40bea-fe02-49c6-8e0b-80084128121e
CommandAndControlClient 8/4/2014 17:25:21 id:CommandAndControlClient_AckRequest, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, agentId:61dba401-b646-4108-ba6b-b06bbccacee9, agentInstanceId:deb2662a-482c-440a-90dd-6e4c340a4c93, taskId:c1d40bea-fe02-49c6-8e0b-80084128121e
ClientRequestHandler 8/4/2014 17:25:21 id:ClientRequestHandler_Request, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, agentId:61dba401-b646-4108-ba6b-b06bbccacee9, agentInstanceId:deb2662a-482c-440a-90dd-6e4c340a4c93, taskId:c1d40bea-fe02-49c6-8e0b-80084128121e, serializedRequest:<?xml version="1.0" encoding="utf-16"?>
<SyncRequest xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<PostActionSucceededWork xsi:nil="true" />
<LogInfo>
<DetailedProviderTraces>false</DetailedProviderTraces>
<SyncGroupId>6e4af9cd-765b-4684-96c3-379972dfb36b</SyncGroupId>
<SyncGroupMemberIdList />
<HubDbId>b77516b0-7ce9-4519-99d0-1cd829224847</HubDbId>
<SyncGroupMemberId>b752dd15-4446-44df-bbc1-17137358308b</SyncGroupMemberId>
<AgentId>61dba401-b646-4108-ba6b-b06bbccacee9</AgentId>
<AgentInstanceId>deb2662a-482c-440a-90dd-6e4c340a4c93</AgentInstanceId>
<TracingId>c1d40bea-fe02-49c6-8e0b-80084128121e</TracingId>
<DssServerId>8646bcc4-d96e-4b4d-814b-93abd0b5ba57</DssServerId>
<DatabaseId>306e351c-9bd3-4b8d-bc94-c5ff7273301c</DatabaseId>
<SqlAzureActivityId>00000000-0000-0000-0000-000000000000</SqlAzureActivityId>
</LogInfo>
<ScopeName>5617A034-8229-45FF-AEC5-CA8459D69FE3</ScopeName>
<SyncGroupMemberId>b752dd15-4446-44df-bbc1-17137358308b</SyncGroupMemberId>
<LocalDatabaseId>306e351c-9bd3-4b8d-bc94-c5ff7273301c</LocalDatabaseId>
<RemoteDatabaseId>b77516b0-7ce9-4519-99d0-1cd829224847</RemoteDatabaseId>
<ConflictResolutionPolicy>LocalWins</ConflictResolutionPolicy>
<SyncDirection>UploadAndDownload</SyncDirection>
<SqlSyncProviderBatchSizeInMB>24</SqlSyncProviderBatchSizeInMB>
<SqlSyncProviderMATSizeInMB>25</SqlSyncProviderMATSizeInMB>
<SqlSyncProviderMatRowCount>50000</SqlSyncProviderMatRowCount>
</SyncRequest>
DatabaseProvider 8/4/2014 17:25:25 id:DbProvider_EnumChanges_CompleteEnumForAllTables, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, agentId:61dba401-b646-4108-ba6b-b06bbccacee9, agentInstanceId:deb2662a-482c-440a-90dd-6e4c340a4c93, syncGroupId:6e4af9cd-765b-4684-96c3-379972dfb36b, syncGroupMemberId:b752dd15-4446-44df-bbc1-17137358308b, hubDbId:b77516b0-7ce9-4519-99d0-1cd829224847, tracingId:c1d40bea-fe02-49c6-8e0b-80084128121e, databaseId:306e351c-9bd3-4b8d-bc94-c5ff7273301c, sqlAzureActivityId:00000000-0000-0000-0000-000000000000, totalBatches:0
DatabaseProvider 8/4/2014 17:25:25 id:DbProvider_EnumChanges_NewBatchAvailable, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, agentId:61dba401-b646-4108-ba6b-b06bbccacee9, agentInstanceId:deb2662a-482c-440a-90dd-6e4c340a4c93, syncGroupId:6e4af9cd-765b-4684-96c3-379972dfb36b, syncGroupMemberId:b752dd15-4446-44df-bbc1-17137358308b, hubDbId:b77516b0-7ce9-4519-99d0-1cd829224847, tracingId:c1d40bea-fe02-49c6-8e0b-80084128121e, databaseId:306e351c-9bd3-4b8d-bc94-c5ff7273301c, sqlAzureActivityId:00000000-0000-0000-0000-000000000000, totalBatchesSpooled:1, batchDetails:
Version :3.1
BatchId :b92ea06f-119b-405e-b2af-29a2ae0f06b6
Batch Number :1
Is Last Batch :True
Data Cache Size :215149
Table Watermarks :[dbo.ItemMaster,181071],[dbo.ItemShopDetail,175347],[dbo.ShopWorkdayDetail,180602],[dbo.OclClientXFileUpload,178442],[dbo.ReportTurnoverHeader,178386],[dbo.ReportTurnoverDetail,178440],[dbo.ShopWorkdayPeriodDetail,178470],[dbo.TableMaster,178667],[dbo.Roster,178683],[dbo.TxSalesHeader,178346],[dbo.MemberTxLog,174510],[dbo.TxPayment,178342],[dbo.TxSalesDetail,178221],[dbo.RawMaterialTxSalesDetail,178213],[dbo.TxSalesDetailLog,178215],[dbo.TxSalesHeaderLog,178343],[dbo.TxSalesHeaderRevokeLog,174128],
SyncController 8/4/2014 17:25:25 id:SyncController_BatchSpooledEvent, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, tracingId:c1d40bea-fe02-49c6-8e0b-80084128121e, agentId:61dba401-b646-4108-ba6b-b06bbccacee9, agentInstanceId:deb2662a-482c-440a-90dd-6e4c340a4c93, syncGroupId:6e4af9cd-765b-4684-96c3-379972dfb36b, memberDbId:306e351c-9bd3-4b8d-bc94-c5ff7273301c, hubDbId:b77516b0-7ce9-4519-99d0-1cd829224847, currentBatchNumber:1, totalBatchesSpooled:1, batchFileName:b92ea06f-119b-405e-b2af-29a2ae0f06b6.batch
BatchTransferUtil 8/4/2014 17:25:26 id:BatchTransfer_ClientInitialized, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, syncGroupId:6e4af9cd-765b-4684-96c3-379972dfb36b, tracingId:c1d40bea-fe02-49c6-8e0b-80084128121e
BatchTransferUtil 8/4/2014 17:25:26 id:BatchTransfer_Start, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, syncGroupId:6e4af9cd-765b-4684-96c3-379972dfb36b, tracingId:c1d40bea-fe02-49c6-8e0b-80084128121e
ThreadId:19. Dispatcher calling GetRequest
LocalAgentHost 8/4/2014 17:25:27 id:LocalAgentHost_Info, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, traceLevel:Info, agentId:61dba401-b646-4108-ba6b-b06bbccacee9, agentInstanceId:deb2662a-482c-440a-90dd-6e4c340a4c93, version:4.0.89.0, methodName:ClientUXService.PingDss, message:Successfully pinged SQL Data Sync.
LocalAgentHost 8/4/2014 17:25:27 id:LocalAgentHost_Info, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, traceLevel:Info, agentId:61dba401-b646-4108-ba6b-b06bbccacee9, agentInstanceId:deb2662a-482c-440a-90dd-6e4c340a4c93, version:4.0.89.0, methodName:ClientUXService.PingDss, message:Successfully pinged SQL Data Sync.
ThreadId:19. Dispatcher calling GetRequest
ThreadId:19. Dispatcher calling GetRequest
BatchTransferUtil 8/4/2014 17:25:41 id:BatchTransfer_ClientInitialized, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, syncGroupId:6e4af9cd-765b-4684-96c3-379972dfb36b, tracingId:c1d40bea-fe02-49c6-8e0b-80084128121e
BatchTransferUtil 8/4/2014 17:25:41 id:BatchTransfer_Start, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, syncGroupId:6e4af9cd-765b-4684-96c3-379972dfb36b, tracingId:c1d40bea-fe02-49c6-8e0b-80084128121e
SyncController 8/4/2014 17:25:41 id:SyncController_BatchAppliedEvent, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, tracingId:c1d40bea-fe02-49c6-8e0b-80084128121e, agentId:61dba401-b646-4108-ba6b-b06bbccacee9, agentInstanceId:deb2662a-482c-440a-90dd-6e4c340a4c93, syncGroupId:6e4af9cd-765b-4684-96c3-379972dfb36b, memberDbId:306e351c-9bd3-4b8d-bc94-c5ff7273301c, hubDbId:b77516b0-7ce9-4519-99d0-1cd829224847, currentBatchNumber:1, totalBatches:1
DatabaseProvider 8/4/2014 17:25:41 id:DbProvider_MAT_AllBatchesApplied, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, agentId:61dba401-b646-4108-ba6b-b06bbccacee9, agentInstanceId:deb2662a-482c-440a-90dd-6e4c340a4c93, syncGroupId:6e4af9cd-765b-4684-96c3-379972dfb36b, syncGroupMemberId:b752dd15-4446-44df-bbc1-17137358308b, hubDbId:b77516b0-7ce9-4519-99d0-1cd829224847, tracingId:c1d40bea-fe02-49c6-8e0b-80084128121e, databaseId:306e351c-9bd3-4b8d-bc94-c5ff7273301c, sqlAzureActivityId:00000000-0000-0000-0000-000000000000, madeWithKnowledge:ReplicaKeyMap: [(0:dcc55513c3b54ba7b48aa7a321bb9cae) (1:1f1d55f265144dcd92a9f3950d11f2b8)] ScopeRangeSet: [00:[(0:642383) (1:172822)]], madeWithForgottenKnowledge:ReplicaKeyMap: [(0:dcc55513c3b54ba7b48aa7a321bb9cae) (1:1f1d55f265144dcd92a9f3950d11f2b8)] ScopeRangeSet: [00:[]], totalChanges:0, totalChangesApplied:0, totalChangesFailed:0, totalChangesPending:0, totalInserts:0, totalUpdates:0, totalDeletes:0
SyncController_SyncStatistics 8/4/2014 17:25:42 id:SyncController_SyncStatistics, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, taskId:c1d40bea-fe02-49c6-8e0b-80084128121e, agentId:61dba401-b646-4108-ba6b-b06bbccacee9, agentInstanceId:deb2662a-482c-440a-90dd-6e4c340a4c93, syncGroupId:6e4af9cd-765b-4684-96c3-379972dfb36b, memberDbId:306e351c-9bd3-4b8d-bc94-c5ff7273301c, hubDbId:b77516b0-7ce9-4519-99d0-1cd829224847, DownloadChangesApplied:0, DownloadChangesFailed:0, DownloadChangesTotal:0, UploadChangesApplied:0, UploadChangesFailed:0, UploadChangesTotal:0, SyncStartTime:9/4/2014 1:25:21, SyncEndTime:9/4/2014 1:25:42
ClientRequestHandler 8/4/2014 17:25:42 id:ClientRequestHandler_Response, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, agentId:61dba401-b646-4108-ba6b-b06bbccacee9, agentInstanceId:deb2662a-482c-440a-90dd-6e4c340a4c93, taskId:c1d40bea-fe02-49c6-8e0b-80084128121e, serializedResponse:<?xml version="1.0" encoding="utf-16"?>
<SyncResponse xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<State>Succeeded</State>
<LogInfo>
<DetailedProviderTraces>false</DetailedProviderTraces>
<SyncGroupId>6e4af9cd-765b-4684-96c3-379972dfb36b</SyncGroupId>
<SyncGroupMemberIdList />
<HubDbId>b77516b0-7ce9-4519-99d0-1cd829224847</HubDbId>
<SyncGroupMemberId>b752dd15-4446-44df-bbc1-17137358308b</SyncGroupMemberId>
<AgentId>61dba401-b646-4108-ba6b-b06bbccacee9</AgentId>
<AgentInstanceId>deb2662a-482c-440a-90dd-6e4c340a4c93</AgentInstanceId>
<TracingId>c1d40bea-fe02-49c6-8e0b-80084128121e</TracingId>
<DssServerId>8646bcc4-d96e-4b4d-814b-93abd0b5ba57</DssServerId>
<DatabaseId>306e351c-9bd3-4b8d-bc94-c5ff7273301c</DatabaseId>
<SqlAzureActivityId>00000000-0000-0000-0000-000000000000</SqlAzureActivityId>
</LogInfo>
<FailureLog />
<PostActionSucceededWork xsi:nil="true" />
<SyncGroupMemberId>b752dd15-4446-44df-bbc1-17137358308b</SyncGroupMemberId>
<DownloadChangesTotal>0</DownloadChangesTotal>
<DownloadChangesApplied>0</DownloadChangesApplied>
<DownloadChangesFailed>0</DownloadChangesFailed>
<UploadChangesTotal>0</UploadChangesTotal>
<UploadChangesApplied>0</UploadChangesApplied>
<UploadChangesFailed>0</UploadChangesFailed>
<StartTime>2014-04-08T17:25:21.7525842Z</StartTime>
<EndTime>2014-04-08T17:25:42.0170198Z</EndTime>
<FailureType>None</FailureType>
</SyncResponse>
CommandAndControlClient 8/4/2014 17:25:42 id:CommandAndControlClient_RequestProcessedSuccessfully, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, agentId:61dba401-b646-4108-ba6b-b06bbccacee9, agentInstanceId:deb2662a-482c-440a-90dd-6e4c340a4c93, taskId:c1d40bea-fe02-49c6-8e0b-80084128121e
ThreadId:19. Dispatcher calling GetRequest
ThreadId:20. GetRequest started.
LocalAgentHost 8/4/2014 17:25:42 id:LocalAgentHost_Info, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, traceLevel:Info, agentId:61dba401-b646-4108-ba6b-b06bbccacee9, agentInstanceId:deb2662a-482c-440a-90dd-6e4c340a4c93, version:4.0.89.0, methodName:ClientUXService.PingDss, message:Successfully pinged SQL Data Sync.
LocalAgentHost 8/4/2014 17:25:42 id:LocalAgentHost_Info, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, traceLevel:Info, agentId:61dba401-b646-4108-ba6b-b06bbccacee9, agentInstanceId:deb2662a-482c-440a-90dd-6e4c340a4c93, version:4.0.89.0, methodName:ClientUXService.PingDss, message:Successfully pinged SQL Data Sync.
ThreadId:19. Dispatcher calling GetRequest
ThreadId:19. Dispatcher calling GetRequest
ThreadId:19. Dispatcher calling GetRequest
LocalAgentHost 8/4/2014 17:25:57 id:LocalAgentHost_Info, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, traceLevel:Info, agentId:61dba401-b646-4108-ba6b-b06bbccacee9, agentInstanceId:deb2662a-482c-440a-90dd-6e4c340a4c93, version:4.0.89.0, methodName:ClientUXService.PingDss, message:Successfully pinged SQL Data Sync.
LocalAgentHost 8/4/2014 17:25:57 id:LocalAgentHost_Info, rId:, sId:8646bcc4-d96e-4b4d-814b-93abd0b5ba57, traceLevel:Info, agentId:61dba401-b646-4108-ba6b-b06bbccacee9, agentInstanceId:deb2662a-482c-440a-90dd-6e4c340a4c93, version:4.0.89.0, methodName:ClientUXService.PingDss, message:Successfully pinged SQL Data Sync.
ThreadId:19. Dispatcher calling GetRequest
ThreadId:19. Dispatcher calling GetRequest