# Last week in scylladb.git master (issue #192; 2023-08-13)

**URL:** <https://forum.scylladb.com/t/last-week-in-scylladb-git-master-issue-192-2023-08-13/776>\
**Category:** ScyllaDB\
**Tags:** git-news\
**Created:** [August 13, 2023, 11:50am UTC](https://forum.scylladb.com/t/last-week-in-scylladb-git-master-issue-192-2023-08-13/776 "2023-08-13T11:50:58Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![avikivity](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.scylladb.com/avikivity/32/38_2.png) [@avikivity](https://forum.scylladb.com/u/avikivity)\
**Post date:** [August 13, 2023, 11:50am UTC](https://forum.scylladb.com/t/last-week-in-scylladb-git-master-issue-192-2023-08-13/776/1 "2023-08-13T11:50:58Z")

</div>

This short report brings to light some interesting commits to [scylladb.git master](https://github.com/scylladb/scylladb/) from the last week. Commits in the 421a5ad55c…2e2271f639 range are covered.

There were 62 non-merge commits from 8 authors in that period. Some notable commits:

  

The experimental tablet load balancer now [exports statistics](https://github.com/scylladb/scylladb/commit/412629a9a1721c5d92d3d474752aa9eed45b0c19) on its activity.

A crash in the experimental tablets feature when a table is dropped was [fixed](https://github.com/scylladb/scylladb/commit/f26e65d4d44da2e1ff443e35c14251cc17f0439c).

When deleting multiple sstables at once (such as at the end of a compaction), we now [avoid flushing the directory](https://github.com/scylladb/scylladb/commit/6f037549ac573cfa152e8bf64594c412d9ee297b) unnecessarily as we can rely on the deletion log file instead.

When a node is decommissioned or removed, and Raft topology management is active, the node [stops being a voter](https://github.com/scylladb/scylladb/commit/9edc98f8e9d4acfb7494904270f87798bcd115aa) earlier in the process in order to improve availability.

A SELECT statement that has the DISTINCT keyword and also GROUP BY on clustering keys is now [rejected](https://github.com/scylladb/scylladb/commit/4f7e83a4d0758e4f4386ce6b128e41ca14137451). DISTINCT implies only selecting the partition key and static rows, so grouping on the clustering keys is nonsensical.

We now [update the list of sstables requiring cleanup after compaction completion](https://github.com/scylladb/scylladb/commit/108e510a2391c10c33b56165eda759339dae37f0). This avoids a race between decommission and compaction, involving offstrategy compaction that could cause such compacted sstables not to be cleaned.

The `system.group0_history` table now has [descriptions](https://github.com/scylladb/scylladb/commit/59c410fb97f3f9d56c8d401de6d58197c58c63b5) for events.

  

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