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MX and NS - DNS timeout fix

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This commit is contained in:
vfedosevich 2014-12-19 02:46:23 -08:00
parent a5120e14b2
commit 8a45147d44
1 changed files with 19 additions and 4 deletions
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23
WebsitePanel/Sources/WebsitePanel.EnterpriseServer.Code/SchedulerTasks/DomainLookupViewTask.cs
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@ -26,7 +26,9 @@ namespace WebsitePanel.EnterpriseServer
private const string MxRecordPattern = @"mail exchanger = (.+)"; private const string MxRecordPattern = @"mail exchanger = (.+)";
private const string NsRecordPattern = @"nameserver = (.+)"; private const string NsRecordPattern = @"nameserver = (.+)";
private const string DnsTimeOutMessage = @"dns request timed out";
private const int DnsTimeOutRetryCount = 3;
public override void DoWork() public override void DoWork()
{ {
BackgroundTask topTask = TaskManager.TopTask; BackgroundTask topTask = TaskManager.TopTask;
@ -100,8 +102,8 @@ namespace WebsitePanel.EnterpriseServer
//execute server //execute server
foreach (var dnsServer in dnsServers) foreach (var dnsServer in dnsServers)
{ {
var dnsMxRecords = GetDomainDnsRecords(winServer, domain.DomainName, dnsServer, DnsRecordType.MX); var dnsMxRecords = GetDomainDnsRecords(winServer, domain.DomainName, dnsServer, DnsRecordType.MX) ?? dbDnsRecords.Where(x => x.RecordType == DnsRecordType.MX).ToList();
var dnsNsRecords = GetDomainDnsRecords(winServer, domain.DomainName, dnsServer, DnsRecordType.NS); var dnsNsRecords = GetDomainDnsRecords(winServer, domain.DomainName, dnsServer, DnsRecordType.NS) ?? dbDnsRecords.Where(x => x.RecordType == DnsRecordType.NS).ToList();
FillRecordData(dnsMxRecords, domain, dnsServer); FillRecordData(dnsMxRecords, domain, dnsServer);
FillRecordData(dnsNsRecords, domain, dnsServer); FillRecordData(dnsNsRecords, domain, dnsServer);
@ -311,7 +313,20 @@ namespace WebsitePanel.EnterpriseServer
var args = string.Format("-type={0} {1} {2}", recordType, domain, dnsServer); var args = string.Format("-type={0} {1} {2}", recordType, domain, dnsServer);
// execute system command // execute system command
var raw = winServer.ExecuteSystemCommand(command, args); var raw = string.Empty;
int triesCount = 0;
do
{
raw = winServer.ExecuteSystemCommand(command, args);
}
while (raw.ToLowerInvariant().Contains(DnsTimeOutMessage) && ++triesCount < DnsTimeOutRetryCount);
//timeout check
if (raw.ToLowerInvariant().Contains(DnsTimeOutMessage))
{
return null;
}
var records = ParseNsLookupResult(raw, dnsServer, recordType); var records = ParseNsLookupResult(raw, dnsServer, recordType);