# StartLiveTailResponseStream
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This object includes the stream returned by your [StartLiveTail](https://docs.aws.amazon.com/AmazonCloudWatchLogs/latest/APIReference/API_StartLiveTail.html) request.

## Contents
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 ** sessionStart **   <a name="CWL-Type-StartLiveTailResponseStream-sessionStart"></a>
This object contains information about this Live Tail session, including the log groups included and the log stream filters, if any.  
Type: [LiveTailSessionStart](API_LiveTailSessionStart.md) object  
Required: No

 ** SessionStreamingException **   <a name="CWL-Type-StartLiveTailResponseStream-SessionStreamingException"></a>
This exception is returned if an unknown error occurs.  
Type: Exception  
HTTP Status Code:   
Required: No

 ** SessionTimeoutException **   <a name="CWL-Type-StartLiveTailResponseStream-SessionTimeoutException"></a>
This exception is returned in the stream when the Live Tail session times out. Live Tail sessions time out after three hours.  
Type: Exception  
HTTP Status Code:   
Required: No

 ** sessionUpdate **   <a name="CWL-Type-StartLiveTailResponseStream-sessionUpdate"></a>
This object contains the log events and session metadata.  
Type: [LiveTailSessionUpdate](API_LiveTailSessionUpdate.md) object  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/logs-2014-03-28/StartLiveTailResponseStream) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/logs-2014-03-28/StartLiveTailResponseStream) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/logs-2014-03-28/StartLiveTailResponseStream)