Durability in Low Latency Messaging Queues

A significant feature of Chronicle Queue Enterprise is support for TCP replication across multiple servers to ensure the high availability of application infrastructure. I have generally held the view that replicating data to a secondary system is faster than sync-ing to disk, assuming the round trip network delay wasn’t high due to quality networks and … Read more

bigdata – Fail to sync data to hadoop cluster (Failed to place enough replicas)

I installed the Hadoop cluster in ubuntu 20.04. After the Hadoop cluster is installed, I was faced with a big issue. The pipeline of Data sync from the client to the Hadoop cluster is broken. The data I intend to transfer to the Hadoop cluster is about 18Gb. Although my DFS remaining is 65%, the … Read more

python – How to use Selenium in Databricks and accessing and moving downloaded files to mounted storage and keep Chrome and ChromeDriver versions in sync?

Here is the guide to installing Selenium, Chrome, and ChromeDriver. This will also move a file after downloading via Selenium to your mounted storage. Each number should be in it’s own cell. Install Selenium %pip install selenium Do your imports import pickle as pkl from selenium import webdriver from selenium.webdriver.chrome.options import Options Download the latest … Read more

Build a Kotlin Mobile App: Salesforce SDK, Part 3

This is our final post in our three-part series demonstrating how to use the Salesforce Mobile SDK to build an Android app that works with the Salesforce platform. In our first post, we showed you how to connect to your org. Our second post showed you how to edit and add data to your org … Read more