Last week in scylla.git master (issue #104; 2021-11-21)

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Avi Kivity

Nov 21, 2021, 4:01:21 AM11/21/21
to ScyllaDB users, scylladb-dev

This short report brings to light some interesting commits to scylla.git master from the last weeks. Commits in the 6cb3caaf39b..f3d5b2b2b0 range are covered.

There were 68 non-merge commits from 18 authors in that period. Some notable commits:

Seastar has disabled Nagle's algorithm for the http server, preventing 40ms latency spikes.

In addition to recording large partitions in terms of their size in bytes, the system.large_partitions table also records partitions with many rows.

XFS filesystems created by scylla_setup now have online discard enabled. This can improve SSD performance.

There is now support for a certificate revocation list for TLS encryprted connections. This makes it possible to deny a client with a compromised certificate.

Scylla precalculates replication maps (these contain information about which replicas each token maps to). We now share replication maps among keyspaces with similar configuration, to save memory and time,

See you in the next issue of last week in scylla.git master!

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