sample-lowpan | Thread mesh networks on Android Things | Service Mesh library

 by   androidthings Java Version: Current License: Apache-2.0

kandi X-RAY | sample-lowpan Summary

kandi X-RAY | sample-lowpan Summary

sample-lowpan is a Java library typically used in Architecture, Service Mesh applications. sample-lowpan has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has low support. You can download it from GitHub.

Discover and connect to Thread mesh networks on Android Things

            kandi-support Support

              sample-lowpan has a low active ecosystem.
              It has 28 star(s) with 10 fork(s). There are 5 watchers for this library.
              It had no major release in the last 6 months.
              There are 4 open issues and 0 have been closed. On average issues are closed in 705 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of sample-lowpan is current.

            kandi-Quality Quality

              sample-lowpan has 0 bugs and 0 code smells.

            kandi-Security Security

              sample-lowpan has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              sample-lowpan code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              sample-lowpan is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              sample-lowpan releases are not available. You will need to build from source code and install.
              Build file is available. You can build the component from source.
              Installation instructions, examples and code snippets are available.
              sample-lowpan saves you 606 person hours of effort in developing the same functionality from scratch.
              It has 1411 lines of code, 48 functions and 15 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed sample-lowpan and discovered the below as its top functions. This is intended to give you an instant insight into sample-lowpan implemented functionality, and help decide if they suit your requirements.
            • Initializes the View
            • Start scanning for lowpAN networks
            • Sends a new value for the seekbar
            • Resets the network
            • Initializes the LowWPAN
            • Make sure lowpAN interface is attached
            • Create a lowpAN network
            • Handles a new value
            • Get the View at the given position
            • Convert RSSI to LQI
            • Converts a byte array to a human - readable string
            • Initialize LoPAN driver
            • Initialize the lopan interface
            • Convert a role to a string
            • Unregisters the lifecycle callback
            • Closes the lopan driver
            • Called when the device is disconnected
            • Called when the device is connected
            • Returns the string representation of the given state
            • Initializes the Activity
            • Invoked when a new connection is connected
            • Creates a new network
            • Start scanning for low - level networks
            • Closes the server
            • Disconnect from the device
            • Join the LowWPAN network
            Get all kandi verified functions for this library.

            sample-lowpan Key Features

            No Key Features are available at this moment for sample-lowpan.

            sample-lowpan Examples and Code Snippets

            No Code Snippets are available at this moment for sample-lowpan.

            Community Discussions


            Is 'No Workload identity for a node level' or 'failure to load CA secret' stopping service mesh from working?
            Asked 2022-Mar-23 at 17:04

            This is the first time I have been trying to install managed Anthos into one of the clusters in GKE. I admit I do not fully understand the full process of installation and troubleshooting I have already done.

            It looks like a managed service has failed to install. When I run:



            Answered 2022-Mar-23 at 17:04
            1. I created a new node pool with more CPU and more nodes as I was getting warning about not having enough CPU. Istio service mesh increases the need for CPU.

            2. I migrated my deployment from old node pool to the new one.

            3. I run istioctl analyze -A and found a few warnings about istio-injection not being enabled in a few namespaces. I fixed that.

            4. I re run asmcli install command without CA

            ./asmcli install --project_id my-app --cluster_name my-cluster --cluster_location europe-west1-b --fleet_id my-app --output_dir anthos-service-mesh --enable_all

            All or some of the above did the trick.



            Getting "rpc error: code = Unavailable desc = error reading from server: EOF" when trying to create a new etcdv3 client
            Asked 2022-Mar-21 at 08:25

            I'm trying to access my ETCD database from a K8s controller, but getting rpc error/EOF when trying to open ETCD client.

            My setup:

            • ETCD service is deployed in my K8s cluster and included in my Istio service mesh (its DNS record:
            • I have a custom K8s controller developed with use of Kubebuilder framework and deployed in the same cluster, different namespace, but configured to be a part of the same Istio service mesh
            • I'm trying to connect to ETCD database from the controller, using Go client SDK library for ETCD

            Here's my affected Go code:



            Answered 2022-Mar-21 at 08:25

            Turned out to be version mismatch - my ETCD db is v3.5.2 and the clientv3 library that I used was v3.5.0. As seen in ETCD changelog (



            Spring boot actuator metrics for Prometheus in Consul Connect
            Asked 2022-Feb-18 at 06:48

            I have a spring boot application running in a Nomad cluster with Consul Connect enabled.



            Answered 2022-Feb-18 at 06:48

            Finally found it. Nomad has an option to expose a particular endpoint via sidecar proxy without mTLS authentication. The use case of this option is specifically for health check or metrics.


            The expose stanza inside connect stanza helps to achieve this.



            How to create circuit breaker for cloud run services?
            Asked 2022-Jan-30 at 15:53

            I am trying to understand how we can create circuit breakers for cloud run services,Unlike in GKE we are using istio kind of service mesh how we implement same thing cloud Run ?



            Answered 2022-Jan-30 at 15:53

            On GKE you'd set up a circuit breaker to prevent overloading your legacy backend systems from a surge in requests.

            To accomplish the same on Cloud Run or Cloud Functions, you can set a maximum number of instances. From that documentation:

            Specifying maximum instances in Cloud Run allows you to limit the scaling of your service in response to incoming requests, although this maximum setting can be exceeded for a brief period due to circumstances such as traffic spikes. Use this setting as a way to control your costs or to limit the number of connections to a backing service, such as to a database.



            Why maxRequestPerConnection of istio does effect to http/1.1 requests?
            Asked 2021-Nov-04 at 09:19

            I'm just learning service mesh using istio and I found a strange behavior. To understand maxRequestsPerConnection of Istio DestinationRule CRD, I write the below manifest and apply it.



            Answered 2021-Nov-03 at 09:35

            First things first: HTTP/1.1 does allow multiple request per connection with Keep-Alive header. This is the default behavior (RFC 2616, Section 8.1).

            The documentation is a bit unclear.

            maxRequestsPerConnection description states:

            Maximum number of requests per connection to a backend. Setting this parameter to 1 disables keep alive. Default 0, meaning “unlimited”, up to 2^29.

            Setting maxRequestsPerConnection to 1 disables Keep-Alive. Setting it to any other value (value > 1) switches Keep-Alive back on.

            Setting this field to proper value (not too high, not too low) is the hard part of configuring Istio, and is dependent on your application needs and traffic.



            How to implement role-based auth with SPIFFE/SPIRE?
            Asked 2021-Sep-24 at 00:45

            I'm in the process of vetting a move to service mesh. While Istio and Consul Connect are certainly still in the cards, I'm leaning towards building up from a bit lower level with Linkerd and SPIFFE/SPIRE.

            I want to build a 'hello world' mesh to test this architecture out. In this hello world mesh, I'd like to be able to issue certificates from SPIFFE/SPIRE that encode some kind of role. As you can probably tell, I'm new to service meshes. How would I implement roles? Are there any guides out there to help get me started?



            Answered 2021-Sep-23 at 16:25

            So there isn't any kind of integration with Linkerd and SPIFFE/SPIRE. As of right now there isn't any particular plan for an integration but you can see the existing issue for more details. The next release of Linkerd, 2.11, will include the ability to create server side policy but current versions don't enforce any kind of policy settings.



            Accessing an SMTP server when istio is enabled
            Asked 2021-Sep-16 at 12:57

            getting error curl: (56) response reading failed while trying to send email via smtp using curl. checked the isto-proxy logs of sidecar but don't see any error logs related to this host. Tried the solution mentioned in How to access external SMTP server from within Kubernetes cluster with Istio Service Mesh as well but didn't work.

            service entry



            Answered 2021-Sep-14 at 10:38

            Most probably port number is causing the error and if not, try deleting the mesh policies

            Also please validate based on below points:

            1.If you recently updated istio try downgrading it. 2.Look again in Sidecar logs for any conflicts or try disabling it. 3.When it comes to curl 56 error packet transmission; limit could be the problem.



            What is the difference between ingress and service mesh in kubernetes?
            Asked 2021-Aug-31 at 15:33

            Can someone help me to understand if service mesh itself is a type of ingress or if there is any difference between service mesh and ingress?



            Answered 2021-Aug-31 at 10:45

            An "Ingress" is responsible for Routing Traffic into your Cluster (from the Docs: An API object that manages external access to the services in a cluster, typically HTTP.)

            On the other side, a Service-Mesh is a tool that adds proxy-Containers as Sidecars to your Pods and Routs traffic between your Pods through those proxy-Containers.

            use-Cases for Service-Meshes are i.E.

            • distributed tracing
            • secure (SSL) connections between pods
            • resilience (service-mesh can reroute traffic from failed requests)
            • network-performance-monitoring



            How to specify custom Istio ingress gateway in Kubernetes ingress
            Asked 2021-Aug-19 at 07:33

            I deployed Istio using the operator and added a custom ingress gateway which is only accessible from a certain source range (our VPN).



            Answered 2021-Aug-19 at 07:33

            You can create an ingress class that references the ingress controller that is deployed by default in the istio-system namespace. This configuration with ingress will work, however to my current knowledge, this is only used for backwards compatibility. If you want to use istio ingress controller functionality, you should use istio gateway and virtual service instead:

            Using the Istio Gateway, rather than Ingress, is recommended to make use of the full feature set that Istio offers, such as rich traffic management and security features.

            If this solution is not optimal for you, you should use e.g. nginx ingress controller and you can still bind it with annotations (deprecated) or using IngressClass. To my present knowledge it is not possible to bind this ingress class with an additional ingress controller. If you need an explanation, documentation, you should create an issue on github.

            Summary: The recommended option is to use the gateway with virtual service. Another possibility is to use nginx alone ingress with different classes and an ingress resource for them.



            AWS EKS: unable to attach IAM role to pods
            Asked 2021-Aug-12 at 14:55

            So i created an AWS EKS cluster & proceeded with trying to created a service mesh using AWS App Mesh on AWS EKS using EKS workshop & AWS App Mesh user guide. The appmesh controller installs.

            kubectl get pods confirms it.



            Answered 2021-Aug-12 at 14:55

            Apparently, it was a stupid mistake of missing out serviceAccountName in the deployment template spec.


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install sample-lowpan

            Deploy the scanner app module on the first Android Things device.
            Tap the Form Network button on the display to create a new LoWPAN network and attach the device. The status message reports the newly created network name.
            Deploy the scanner app module on the second Android Things device.
            Tap the Scan button on the display. Within a few moments, the network info appears in the list. You can optionally tap the list item to join the discovered network.
            Finally, tap Leave on the first Android Things device to tear down the LoWPAN network.
            Deploy the receiver app module on the first Android Things device. Identify the receiver device's IP address on the LoWPAN network.
            Deploy the receiver app module on the first Android Things device
            Identify the receiver device's IP address on the LoWPAN network
            Open the transmitter module, and enter the IP address from the previous section into private static final String SERVER_ADDRESS = "<ENTER_IP_ADDRESS>";
            Deploy the transmitter app module on the second Android Things device


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