Azure Function EventHubTrigger running multiple instances
I'm having a problem running multiple instances of Azure functions that are supposed to be targeting same IoTHub endpoint (the default one) but different consumer group (required groups are created on the portal). Basically I want to process the same message twice but on different functions. So I have written two function projects with same setup (same storage, same endpoint and config) and only targeting different consumer group like in sample provided here Event Hubs features
If I run each project separately they both work just fine, the problem is if I run any of the projects first and then start the second one I get an error that that IServiceProvider is disposed. Error in output window:
Exception thrown: 'System.NullReferenceException' in Microsoft.Azure.WebJobs.Script.WebHost.dll
Function implementation as simple as it gets:
[FunctionName("MessageFunction")]
public static async Task Run([EventHubTrigger("myActualEventHubName", Connection = "HubConnection", ConsumerGroup = "StoreMap")]OrderRecord message, ILogger log)
{
try
{
if (message != null)
{
log.LogInformation($"Got a valid message");
await Task.Delay(1000);
}
log.LogInformation($"Event Hub trigger function processed a message: {message}");
}
catch (Exception e)
{
log.LogError("Error while processing.", e);
}
}
Is this achievable or am I missing something or is this just a bug in some library? Any help appreciated.
.Net Core 2.1
Tools:
VisualStudio 15.9.2
Azure Functions and Web Jobs Tools 15.10.2046.0
Installed Nugets:
Microsoft.NET.Sdk.Functions 1.0.24
Microsoft.Azure.WebJobs.Extensions.EventHubs 3.0.1
c#
azure azure-functions edited Nov 27 '18 at 9:19
Jerry Liu
10.9k11130
asked Nov 23 '18 at 16:32
PsMasterPsMaster
3116
add a comment |
I'm having a problem running multiple instances of Azure functions that are supposed to be targeting same IoTHub endpoint (the default one) but different consumer group (required groups are created on the portal). Basically I want to process the same message twice but on different functions. So I have written two function projects with same setup (same storage, same endpoint and config) and only targeting different consumer group like in sample provided here Event Hubs features
If I run each project separately they both work just fine, the problem is if I run any of the projects first and then start the second one I get an error that that IServiceProvider is disposed. Error in output window:
Exception thrown: 'System.NullReferenceException' in Microsoft.Azure.WebJobs.Script.WebHost.dll
Function implementation as simple as it gets:
[FunctionName("MessageFunction")]
public static async Task Run([EventHubTrigger("myActualEventHubName", Connection = "HubConnection", ConsumerGroup = "StoreMap")]OrderRecord message, ILogger log)
{
try
{
if (message != null)
{
log.LogInformation($"Got a valid message");
await Task.Delay(1000);
}
log.LogInformation($"Event Hub trigger function processed a message: {message}");
}
catch (Exception e)
{
log.LogError("Error while processing.", e);
}
}
Is this achievable or am I missing something or is this just a bug in some library? Any help appreciated.
.Net Core 2.1
Tools:
VisualStudio 15.9.2
Azure Functions and Web Jobs Tools 15.10.2046.0
Installed Nugets:
Microsoft.NET.Sdk.Functions 1.0.24
Microsoft.Azure.WebJobs.Extensions.EventHubs 3.0.1
c#
azure azure-functions edited Nov 27 '18 at 9:19
Jerry Liu
10.9k11130
asked Nov 23 '18 at 16:32
PsMasterPsMaster
3116
1
Seems like this might be due to running multiple functions from same machine, if I have one of the instances deployed on cloud and one running on my own machine then it all seems to be working fine.
– PsMaster
Nov 26 '18 at 17:32
add a comment |
I'm having a problem running multiple instances of Azure functions that are supposed to be targeting same IoTHub endpoint (the default one) but different consumer group (required groups are created on the portal). Basically I want to process the same message twice but on different functions. So I have written two function projects with same setup (same storage, same endpoint and config) and only targeting different consumer group like in sample provided here Event Hubs features
If I run each project separately they both work just fine, the problem is if I run any of the projects first and then start the second one I get an error that that IServiceProvider is disposed. Error in output window:
Exception thrown: 'System.NullReferenceException' in Microsoft.Azure.WebJobs.Script.WebHost.dll
Function implementation as simple as it gets:
[FunctionName("MessageFunction")]
public static async Task Run([EventHubTrigger("myActualEventHubName", Connection = "HubConnection", ConsumerGroup = "StoreMap")]OrderRecord message, ILogger log)
{
try
{
if (message != null)
{
log.LogInformation($"Got a valid message");
await Task.Delay(1000);
}
log.LogInformation($"Event Hub trigger function processed a message: {message}");
}
catch (Exception e)
{
log.LogError("Error while processing.", e);
}
}
Is this achievable or am I missing something or is this just a bug in some library? Any help appreciated.
.Net Core 2.1
Tools:
VisualStudio 15.9.2
Azure Functions and Web Jobs Tools 15.10.2046.0
Installed Nugets:
Microsoft.NET.Sdk.Functions 1.0.24
Microsoft.Azure.WebJobs.Extensions.EventHubs 3.0.1
c#
azure azure-functions edited Nov 27 '18 at 9:19
Jerry Liu
10.9k11130
asked Nov 23 '18 at 16:32
PsMasterPsMaster
3116
I'm having a problem running multiple instances of Azure functions that are supposed to be targeting same IoTHub endpoint (the default one) but different consumer group (required groups are created on the portal). Basically I want to process the same message twice but on different functions. So I have written two function projects with same setup (same storage, same endpoint and config) and only targeting different consumer group like in sample provided here Event Hubs features
If I run each project separately they both work just fine, the problem is if I run any of the projects first and then start the second one I get an error that that IServiceProvider is disposed. Error in output window:
Exception thrown: 'System.NullReferenceException' in Microsoft.Azure.WebJobs.Script.WebHost.dll
Function implementation as simple as it gets:
[FunctionName("MessageFunction")]
public static async Task Run([EventHubTrigger("myActualEventHubName", Connection = "HubConnection", ConsumerGroup = "StoreMap")]OrderRecord message, ILogger log)
{
try
{
if (message != null)
{
log.LogInformation($"Got a valid message");
await Task.Delay(1000);
}
log.LogInformation($"Event Hub trigger function processed a message: {message}");
}
catch (Exception e)
{
log.LogError("Error while processing.", e);
}
}
Is this achievable or am I missing something or is this just a bug in some library? Any help appreciated.
.Net Core 2.1
Tools:
VisualStudio 15.9.2
Azure Functions and Web Jobs Tools 15.10.2046.0
Installed Nugets:
Microsoft.NET.Sdk.Functions 1.0.24
Microsoft.Azure.WebJobs.Extensions.EventHubs 3.0.1
c#
azure azure-functions c#
azure azure-functions edited Nov 27 '18 at 9:19
Jerry Liu
10.9k11130
asked Nov 23 '18 at 16:32
PsMasterPsMaster
3116
edited Nov 27 '18 at 9:19
Jerry Liu
10.9k11130
asked Nov 23 '18 at 16:32
PsMasterPsMaster
3116
edited Nov 27 '18 at 9:19
Jerry Liu
10.9k11130
edited Nov 27 '18 at 9:19
Jerry Liu
10.9k11130
edited Nov 27 '18 at 9:19
Jerry Liu
10.9k11130
10.9k11130
asked Nov 23 '18 at 16:32
PsMasterPsMaster
3116
asked Nov 23 '18 at 16:32
PsMasterPsMaster
3116
asked Nov 23 '18 at 16:32
PsMasterPsMaster
3116
3116
1
Seems like this might be due to running multiple functions from same machine, if I have one of the instances deployed on cloud and one running on my own machine then it all seems to be working fine.
– PsMaster
Nov 26 '18 at 17:32
add a comment |
1
Seems like this might be due to running multiple functions from same machine, if I have one of the instances deployed on cloud and one running on my own machine then it all seems to be working fine.
– PsMaster
Nov 26 '18 at 17:32
1
1
Seems like this might be due to running multiple functions from same machine, if I have one of the instances deployed on cloud and one running on my own machine then it all seems to be working fine.
– PsMaster
Nov 26 '18 at 17:32
Seems like this might be due to running multiple functions from same machine, if I have one of the instances deployed on cloud and one running on my own machine then it all seems to be working fine.
– PsMaster
Nov 26 '18 at 17:32
add a comment |
1 Answer
1
active
oldest
votes
It is caused by the occupied TCP port. When function host starts locally, it listens to port 7071 by default. We need to specify different ports to allow multiple instances running together.
Right click on your project> Properties> Debug, in Application arguments section add host start -port 7072.
answered Nov 27 '18 at 9:17
Jerry LiuJerry Liu
10.9k11130
Perfect, works as expected, thank you!
– PsMaster
Nov 28 '18 at 14:17
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
It is caused by the occupied TCP port. When function host starts locally, it listens to port 7071 by default. We need to specify different ports to allow multiple instances running together.
Right click on your project> Properties> Debug, in Application arguments section add host start -port 7072.
answered Nov 27 '18 at 9:17
Jerry LiuJerry Liu
10.9k11130
Perfect, works as expected, thank you!
– PsMaster
Nov 28 '18 at 14:17
add a comment |
It is caused by the occupied TCP port. When function host starts locally, it listens to port 7071 by default. We need to specify different ports to allow multiple instances running together.
Right click on your project> Properties> Debug, in Application arguments section add host start -port 7072.
answered Nov 27 '18 at 9:17
Jerry LiuJerry Liu
10.9k11130
Perfect, works as expected, thank you!
– PsMaster
Nov 28 '18 at 14:17
add a comment |
It is caused by the occupied TCP port. When function host starts locally, it listens to port 7071 by default. We need to specify different ports to allow multiple instances running together.
Right click on your project> Properties> Debug, in Application arguments section add host start -port 7072.
answered Nov 27 '18 at 9:17
Jerry LiuJerry Liu
10.9k11130
It is caused by the occupied TCP port. When function host starts locally, it listens to port 7071 by default. We need to specify different ports to allow multiple instances running together.
Right click on your project> Properties> Debug, in Application arguments section add host start -port 7072.
answered Nov 27 '18 at 9:17
Jerry LiuJerry Liu
10.9k11130
answered Nov 27 '18 at 9:17
Jerry LiuJerry Liu
10.9k11130
answered Nov 27 '18 at 9:17
Jerry LiuJerry Liu
10.9k11130
answered Nov 27 '18 at 9:17
Jerry LiuJerry Liu
10.9k11130
10.9k11130
Perfect, works as expected, thank you!
– PsMaster
Nov 28 '18 at 14:17
add a comment |
Perfect, works as expected, thank you!
– PsMaster
Nov 28 '18 at 14:17
Perfect, works as expected, thank you!
– PsMaster
Nov 28 '18 at 14:17
Perfect, works as expected, thank you!
– PsMaster
Nov 28 '18 at 14:17
add a comment |
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1
Seems like this might be due to running multiple functions from same machine, if I have one of the instances deployed on cloud and one running on my own machine then it all seems to be working fine.
– PsMaster
Nov 26 '18 at 17:32