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Launching the Engineering Blog

Zalando Engineering

Our Engineering Blog was launched in June 2020 after a long break of the previous tech blog. What customizations we applied to design the blog and the publishing process. Static Site Generator Our previous tech blog used a CMS which only a limited number of people had access to. So which static site generator to choose?

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Optimization Strategies for Iceberg Tables

Cloudera

This blog discusses a few problems that you might encounter with Iceberg tables and offers strategies on how to optimize them in each of those scenarios. A bloated metadata.json file could increase both read/write times because a large metadata file needs to be read/written every time. Iceberg doesn’t delete the old data files.

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Data Engineering Annotated Monthly – May 2022

Big Data Tools

DataHub 0.8.36 – Metadata management is a big and complicated topic. DataHub is a completely independent product by LinkedIn, and the folks there definitely know what metadata is and how important it is. If you haven’t found your perfect metadata management system just yet, maybe it’s time to try DataHub!

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Data Engineering Annotated Monthly – May 2022

Big Data Tools

DataHub 0.8.36 – Metadata management is a big and complicated topic. DataHub is a completely independent product by LinkedIn, and the folks there definitely know what metadata is and how important it is. If you haven’t found your perfect metadata management system just yet, maybe it’s time to try DataHub!

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HDFS Data Encryption at Rest on Cloudera Data Platform

Cloudera

To prevent the management of these keys (which can run in the millions) from becoming a performance bottleneck, the encryption key itself is stored in the file metadata. Each file will have an EDEK which is stored in the file’s metadata. sent 11,286 bytes received 172 bytes 2,546.22 keytrustee ccycloud-3.cdpvcb.root.hwx.site:/var/lib/keytrustee/.

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Hardening Palantir’s Kubernetes Infrastructure with Cilium

Palantir

In this blog post, Palantir’s Information Security (InfoSec) team will share our recent experience using Cilium : an open-source project by Isovalent dedicated to securing container-based infrastructure, enabling visibility & controls preferable to those of a traditional firewall. Authors: Michael A. & & Sean C.

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How We Use RocksDB at Rockset

Rockset

In this blog post, I'll describe how we use RocksDB at Rockset and how we tuned it to get the most performance out of it. For more details on leaf nodes, please refer to Aggregator Leaf Tailer blog post or Rockset white paper. RocksDB-Cloud replicates all the data and metadata for a RocksDB instance to S3.

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