simply about difficult
We may run into this error while developing an app for Android: It may look like this as well: I won’t be torturing you with long explanations and references 😁, so everything you should do is to check that you have android.permission.INTERNET permission in your AndroidManifest.xml: Sometimes it’s necessary to add android.permission.ACCESS_NETWORK_STATE as well.
READ MORESuppose you just run into this exception, saying that gRPC cannot assign requested address: TL;DR: most likely you opened too many connections, and you run out of ephemeral ports. Consider channel/stub reuse: https://mchesnavsky.tech/grpc-channel-stub-reuse. Details: first, we should distinguish between fixed ports, and ephemeral ports. Ephemeral ports are typically used by client devices initiating communication with […]
READ MORECreating new gRPC channels and stubs involves establishing connections and negotiating capabilities with the server. Reusing them eliminates this overhead for subsequent calls. By keeping connections alive, you avoid the initial handshake delay for each RPC, leading to faster communication. However, you should ensure that reusing the channel doesn’t create a bottleneck in your application. […]
READ MOREFirst, let’s figure out how the timeout differs from the deadline. Timeout is relative value, but deadline is absolute. If we take a timeout and a deadline of 5 seconds, and we will write the following line (the code for an example, it will not work if you run it): Then, if you want to […]
READ MOREIMPORTANT! If you trying to install Apache Atlas and receiving this error, there is a separate article: https://mchesnavsky.tech/apache-atlas-building-installing/ Suppose that we are faced with these exceptions. The first: The second: The third: The hbase-client cannot connect to the Zookeeper. You need to pay attention to the address: If there is a real Zookeeper instance at […]
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