Python – Anaconda Installation Anaconda can be downloaded from the following link: You can select the version of the installer suitable for your system. Here we are choosing the Mac version. After downloading we can run it through the Terminal. To get a list of available sub-commands run anaconda-h.
pip- 407 Proxy Authentication failed If you are running pip behind firewall, you might get the following error: The solution is very simple. Create a file pip.ini in your %user%/pip folder with the following configurations:
Angular – Progressive Web Apps using Service Workers Service workers enable creating progressive web applications. It is a script running in the web browser supporting caching of the application resources. They preserve the resources even after the user closes the tab and serves them when the application is requested again. Setting up Angular Project Let’s… Continue reading »
go – segmentation fault: 11 Running go after a few days, I notice that it is crashing with segmentation 11 error. In this post, we will try to get rid of this error in order to run go on our machine. Actually, I need this as a dependency to run some other development tool. Reading… Continue reading »
Apache Flink: could not find implicit value for evidence parameter of type This is a common error when transforming streams in Apache Flink based applications. The solution is simple. We just need to import the following: Which should import the necessary types for the operations.
Kafka Connect – Externalizing Secrets – KIP 297 In order to connect with a data source or sink, we need to use credentials. Kafka Connect added support for specifying credential using config providers. The support for file config provider is available with the installation package. This is discussed in KIP 297. The KIP was released… Continue reading »
Kafka Connect Couchbase Connector – Document Expiration Couchbase supports document expiration. If the documents are ingested from Kafka through Couchbase Sink connector the expiration can be set at the connector side where we can set the expiration for each record upserted as document in couchbase. Here is a sample configuration for the connector: Here is… Continue reading »
Kafka Tools – kafkacat – non-JVM Kafka producer / consumer kafkacat is an amazing kafka tool based on librdkafka library, which is a C/C++ library for kafka. It means that it doesn’t have dependency on JVM to work with kafka data as administrator. It can be used to consume and produce messages from kafka topics…. Continue reading »
Kafka Tools – kafka-delete-records While working with kafka we, sometimes, need to purge records from a topic. This is specially needed in a development environment where we just want to get rid of some records and want to keep the other ones. Previously we have discussed how we can purge all records from a topic… Continue reading »
Apache Flink: History Server One of the problems we have faced running Apache Flink that we have a very limited windows for getting access to the details about failed / crashed jobs. The job details just disappear and cannot be retrieved especially form web front end. Here is how it looks like: Actually we are… Continue reading »