Question

我有一个作为服务运行的.Net 3.5应用程序。该应用程序有一个调用Web服务的线程，并将该数据存储在SQLite数据库中。

在开发过程中，我们从未遇到任何问题，但在生产环境中，Web服务调用最多需要20秒才能完成。当应用程序调用Web服务并等待回复Windows资源管理器时，因为滞后和无响应。当呼叫返回时，Windows资源管理器再次正常，直到它调用Web服务并等待回复。

进程的CPU使用率非常低，并且在调用Web服务时不会出现峰值。我可以看到硬盘驱动器在写入数据库时遇到硬件驱动器但是一切都发生在一瞬间，肯定不会导致速度减慢。

任何帮助都会非常感激，因为我现在对此问题感到茫然。

Machine Specs
Windows XP SP3
Intel core i5 3.2GHz
3.5 GB RAM

代码

public void UpdateMembers()
{
    var moreMembersToUpdate = true;
    while (moreMembersToUpdate)
    {
        var response = GetMembersToUpdate();
        if (response != null)
        {
            UpdateLicense(response.licensed);
            if (response.memberResult == null || response.memberResult.recordsReturned == 0)
                break;
        }
        else
            break;
        UpdateMemberCache(response.memberResult.memberList, response.memberResult.lastUpdate,
            response.memberResult.lastMembersTransactionID);
        moreMembersToUpdate = response.memberResult.recordsLeft;
    }
}

public void UpdateLicense(bool licensed)
{
    var list = DataMapper.GetMapper().QueryForList("Select.License", null);
    if (list != null && list.Count > 0)
    {
        var isLicensed = (Boolean) list[0];
        if(isLicensed != licensed)
        {
            DataMapper.GetMapper().Update("Update.License", licensed);
        }
    }
    else
        DataMapper.GetMapper().Insert("Insert.License", licensed);
}

public StoredValueResponse GetMembersToUpdate()
{
    var token = new OperationToken
    {
        company = Settings.GetCompany(),
        storeID = Settings.GetStoreID(),
        operationID = Guid.NewGuid().ToString(),
        batchSize = 3000,
        password = Settings.GetPassword(),
        userName = Settings.GetCompany()
    };
    var lastSync = GetLastMemberCacheSync();
    return WebMethods.GetUpdatedMemberCache(token, lastSync.TransactionDetailID);
}

public MemberSyncRecord GetLastMemberCacheSync()
{

    var lastMemberSync = DataMapper.GetMapper().QueryForList("Select.LastMemberUpdate", null);
    if (lastMemberSync != null && lastMemberSync.Count > 0 && lastMemberSync[0] != null)
        return (MemberSyncRecord)lastMemberSync[0];
    var record = new MemberSyncRecord
    {
        LastMembersTransactionTime = new DateTime(1900, 1, 1),
        TransactionDetailID = 0
    };
    return record;
}

public void UpdateMemberCache(SmallMemberInfo[] members, DateTime lastSyncTime, long transactionDetailID)
{
    try
    {
        DataMapper.GetMapper().BeginTransaction();
        foreach (var member in members)
        {
            DataMapper.GetMapper().Insert("Insert.MemberInfo", member);
        }
        DataMapper.GetMapper().CommitTransaction();
    }
    catch(Exception)
    {
        DataMapper.GetMapper().RollBackTransaction();
        throw;
    }
    UpdateMemberCacheSyncHistory(lastSyncTime, members.Length, transactionDetailID);
}

应用程序调用Web服务时，Windows资源管理器无响应

0 个答案: