# Frontend Error Namespace Id: "" not found **URL:** \ **Category:** Community Support\ **Tags:** namespace\ **Created:** [September 1, 2021, 10:03am UTC](https://community.temporal.io/t/frontend-error-namespace-id-not-found/2841 "2021-09-01T10:03:21Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Ashish\_Sharma](https://sea2.discourse-cdn.com/flex016/user_avatar/community.temporal.io/ashish_sharma/32/1228_2.png) [@Ashish\_Sharma](https://community.temporal.io/u/Ashish_Sharma)\ **Post date:** [September 1, 2021, 10:03am UTC](https://community.temporal.io/t/frontend-error-namespace-id-not-found/2841/1 "2021-09-01T10:03:21Z")
Getting Error that namespace ID not found, but the ID is present in the cassandra database ```auto {"level":"error","ts":"2021-09-01T07:46:30.614Z","msg":"PollActivityTaskQueue failed.","service":"frontend","wf-task-queue-name":"geoCodingTask","value":"1m9.999718269s","error":"namespace ID: 9a20c040-d832-4289-8b32-97b941309bf3 not found","logging-call-at":"workflowHandler.go:1059","stacktrace":"go.temporal.io/server/common/log.(*zapLogger).Error\n \t/temporal/common/log/zap_logger.go:136\ngo.temporal.io/server/service/frontend.(*WorkflowHandler).PollActivityTaskQueue\n\t /temporal/service/frontend/workflowHandler.go:1059\ngo.temporal.io/server/service/frontend.(*DCRedirectionHandlerImpl).PollActivityTaskQueue.func2\n\t /temporal/service/frontend/dcRedirectionHandler.go:502\n go.temporal.io/server/service/frontend.(*NoopRedirectionPolicy).WithNamespaceRedirect\n\t /temporal/service/frontend/dcRedirectionPolicy.go:118\ngo.temporal.io/server/service/frontend.(*DCRedirectionHandlerImpl).PollActivityTaskQueue\n\t /temporal/service/frontend/dcRedirectionHandler.go:498\n go.temporal.io/api/workflowservice/v1._WorkflowService_PollActivityTaskQueue_Handler.func1\n\t/go/pkg/mod/go.temporal.io/api@v1.4.1-0.20210420220407-6f00f7f98373/workflowservice/v1/service.pb.go:1138\ngo.temporal.io/server/common/authorization.(*interceptor).Interceptor\n\t/temporal/common/authorization/interceptor.go:147\ngoogle.golang.org/grpc.getChainUnaryHandler.func1\n\t /go/pkg/mod/google.golang.org/grpc@v1.37.0/server.go:1058\ngo.temporal.io/server/common/rpc/interceptor.(*NamespaceCountLimitInterceptor).Intercept\n\t/temporal/common/rpc/interceptor/namespace_count_limit.go:90\n google.golang.org/grpc.getChainUnaryHandler.func1\n\t /go/pkg/mod/google.golang.org/grpc@v1.37.0/server.go:1058\ngo.temporal.io/server/common/rpc/interceptor.(*NamespaceRateLimitInterceptor).Intercept\n\t/temporal/common/rpc/interceptor/namespace_rate_limit.go:89\n google.golang.org/grpc.getChainUnaryHandler.func1\n\t /go/pkg/mod/google.golang.org/grpc@v1.37.0/server.go:1058\ngo.temporal.io/server/common/rpc/interceptor.(*RateLimitInterceptor).Intercept\n\t /temporal/common/rpc/interceptor/rate_limit.go:79\ngoogle.golang.org/grpc.getChainUnaryHandler.func1\n\t /go/pkg/mod/google.golang.org/grpc@v1.37.0/server.go:1058\ngo.temporal.io/server/common/rpc/interceptor.(*TelemetryInterceptor).Intercept\n\t/temporal/common/rpc/interceptor/telemetry.go:113\ngoogle.golang.org/grpc.getChainUnaryHandler.func1\n\t /go/pkg/mod/google.golang.org/grpc@v1.37.0/server.go:1058\ngo.temporal.io/server/common/rpc.ServiceErrorInterceptor\n\t /temporal/common/rpc/grpc.go:105\ngoogle.golang.org/grpc.chainUnaryServerInterceptors.func1\n\t /go/pkg/mod/google.golang.org/grpc@v1.37.0/server.go:1044\n go.temporal.io/api/workflowservice/v1._WorkflowService_PollActivityTaskQueue_Handler\n\t /go/pkg/mod/go.temporal.io/api@v1.4.1-0.20210420220407-6f00f7f98373/workflowservice/v1/service.pb.go:1140\n google.golang.org/grpc.(*Server).processUnaryRPC\n\t /go/pkg/mod/google.golang.org/grpc@v1.37.0/server.go:1217\n google.golang.org/grpc.(*Server).handleStream\n\t /go/pkg/mod/google.golang.org/grpc@v1.37.0/server.go:1540\n google.golang.org/grpc.(*Server).serveStreams.func1.2\n\t /go/pkg/mod/google.golang.org/grpc@v1.37.0/server.go:878"} ``` ---
**Author:** ![tihomir](https://sea2.discourse-cdn.com/flex016/user_avatar/community.temporal.io/tihomir/32/6580_2.png) [@tihomir](https://community.temporal.io/u/tihomir)\ **Post date:** [September 1, 2021, 1:49pm UTC](https://community.temporal.io/t/frontend-error-namespace-id-not-found/2841/2 "2021-09-01T13:49:20Z")
Can you provide more info like what you are doing when this error happens, what server version you are using, and anything else that could help answer this question? You can see your namespace id with tctl command `tctl namespace desc`, does it match up with the id in the error you show? ---
**Author:** ![Ashish\_Sharma](https://sea2.discourse-cdn.com/flex016/user_avatar/community.temporal.io/ashish_sharma/32/1228_2.png) [@Ashish\_Sharma](https://community.temporal.io/u/Ashish_Sharma)\ **Post date:** [September 2, 2021, 6:55am UTC](https://community.temporal.io/t/frontend-error-namespace-id-not-found/2841/3 "2021-09-02T06:55:09Z")
Server Version:- 1.9.2 The error is occurring after a workflow is registered. According to UI no workers are being registered, but the worker registration process is done. The same process is working on other environment. > [@tihomir](#): > > You can see your namespace id with tctl command `tctl namespace desc` , does it match up with the id in the error you show? Yes the namespace Id is same as in the logs ---
**Author:** ![Ashish\_Sharma](https://sea2.discourse-cdn.com/flex016/user_avatar/community.temporal.io/ashish_sharma/32/1228_2.png) [@Ashish\_Sharma](https://community.temporal.io/u/Ashish_Sharma)\ **Post date:** [September 2, 2021, 10:04am UTC](https://community.temporal.io/t/frontend-error-namespace-id-not-found/2841/4 "2021-09-02T10:04:26Z")
Some More Context:- Stopping the workers stops this issue, seems like it is happening when worker is trying to poll the task queue ---
**Author:** ![srikanthchelluri](https://sea2.discourse-cdn.com/flex016/user_avatar/community.temporal.io/srikanthchelluri/32/1487_2.png) [@srikanthchelluri](https://community.temporal.io/u/srikanthchelluri)\ **Post date:** [November 8, 2021, 3:11pm UTC](https://community.temporal.io/t/frontend-error-namespace-id-not-found/2841/5 "2021-11-08T15:11:20Z")
hello - was this resolved? we’re seeing the same issue and it breaks worker polling: [NOT\_FOUND: Namespace id "xxxxxx-xxxxx-xxxxx-xxxxx-xxxxxxxxxxxx" not found](https://community.temporal.io/t/not-found-namespace-id-xxxxxx-xxxxx-xxxxx-xxxxx-xxxxxxxxxxxx-not-found/3320) ---
**Author:** ![tihomir](https://sea2.discourse-cdn.com/flex016/user_avatar/community.temporal.io/tihomir/32/6580_2.png) [@tihomir](https://community.temporal.io/u/tihomir)\ **Post date:** [November 8, 2021, 3:55pm UTC](https://community.temporal.io/t/frontend-error-namespace-id-not-found/2841/6 "2021-11-08T15:55:12Z")
What server version are you running? ---
**Author:** ![srikanthchelluri](https://sea2.discourse-cdn.com/flex016/user_avatar/community.temporal.io/srikanthchelluri/32/1487_2.png) [@srikanthchelluri](https://community.temporal.io/u/srikanthchelluri)\ **Post date:** [November 8, 2021, 4:54pm UTC](https://community.temporal.io/t/frontend-error-namespace-id-not-found/2841/7 "2021-11-08T16:54:26Z")
thanks for the response. we’re on image 1.13.0 - but i’ll see to continue the conversation in the other thread: [NOT\_FOUND: Namespace id "xxxxxx-xxxxx-xxxxx-xxxxx-xxxxxxxxxxxx" not found - #2 by Artem\_Kazakov](https://community.temporal.io/t/not-found-namespace-id-xxxxxx-xxxxx-xxxxx-xxxxx-xxxxxxxxxxxx-not-found/3320/2)