Issues

• Failure: s3_hetzner — Hetzner object storage stops responding mid-request

  cicd-failure
  Altinity/clickhouse-regression#176 · Filter by author CarlosFelipeOR opened on Oct 6, 2026
  

• Failure: tiered_storage/alter table policy — disk utilization asserts encode a state ClickHouse does not guarantee

  cicd-failure
  Altinity/clickhouse-regression#162 · Filter by author CarlosFelipeOR opened on Aug 14, 2026

• Failure: disk_level_encryption/operations — log rotation during restart hides ConfigReloader, job hangs until timeout on 26.6

  26.6-antalyacicd-failure
  Altinity/clickhouse-regression#161 · Filter by author CarlosFelipeOR opened on Aug 11, 2026
  1

• Feature-support validation: fail fast on missing Antalya features on antalya-26.6 (swarms, oauth, s3 export, iceberg)

  26.6-antalyacicd-failure
  Altinity/clickhouse-regression#155 · Filter by author CarlosFelipeOR opened on Aug 3, 2026
  2

• Investigation: stateless / Scraping part_log.2 FAIL — replica crash "Temporary part ... already added" on DatabaseReplicated (stable-25.8)

  25.8cicd-failure
  Altinity/clickhouse-regression#148 · Filter by author CarlosFelipeOR opened on Jul 7, 2026

• Failure: integration / test_mysql_dotnet_client — stale altinityinfra/mysql_dotnet_client:latest image on stable-25.8

  25.8cicd-failure
  Altinity/clickhouse-regression#147 · Filter by author CarlosFelipeOR opened on Jul 7, 2026

• Failure: stateless / 00157_cache_dictionary — INSERT timeout when randomizer picks enable_filesystem_cache=0

  26.1-antalya26.3-antalyacicd-failure
  Altinity/clickhouse-regression#145 · Filter by author CarlosFelipeOR opened on Jun 9, 2026

• Failure: /iceberg/iceberg engine/rest catalog/show_data_lake_catalogs hint — empty SHOW TABLES on non-Antalya and <26.1 CI

  25.325.8-antalya25.8
  Altinity/clickhouse-regression#130 · Filter by author CarlosFelipeOR opened on Apr 8, 2026
  

• Failure: clickhouse keeper / alter_partition_distributed / alter clear column in partition — SummingMergeTree + CLEAR COLUMN regression in ClickHouse >=25.8

  22.8cicd-failure
  Altinity/clickhouse-regression#129 · Filter by author CarlosFelipeOR opened on Apr 7, 2026
  

• Investigation: CI failures on antalya-25.8.16.20002 release MasterCI run

  Altinity/clickhouse-regression#120 · Filter by author CarlosFelipeOR opened on Mar 21, 2026

• EXPORT PARTITION: KILLED status can be overwritten to COMPLETED due to race condition

  26.1-antalya
  Altinity/clickhouse-regression#113 · Filter by author Selfeer opened on Mar 6, 2026
  2

• Export Part/Partition integration tests (PR #1388) failing consistently under ASAN builds

  26.1-antalyacicd-failure
  Altinity/clickhouse-regression#112 · Filter by author CarlosFelipeOR opened on Mar 5, 2026

• Flaky tests in Altinity regression suite

  cicd-failure
  Altinity/clickhouse-regression#94 · Filter by author CarlosFelipeOR opened on Jan 27, 2026

• Failure: 25.8.15 Stable - S3 (minio, 2) / zero copy replication / add remove one replica – Row count mismatch

  25.8cicd-failurein-progress
  Altinity/clickhouse-regression#93 · Filter by author CarlosFelipeOR opened on Jan 23, 2026
  4

  

• Failure: altinitystable-25-8-antalya-x86 - /iceberg/iceberg cache

  25.8-antalyacicd-failure
  Altinity/clickhouse-regression#90 · Filter by author CarlosFelipeOR opened on Jan 7, 2026
  3

  

• Failure: clickhouse-head-x86-with-analyzer-zookeeper/rbac_1/rbac_1 - DB::Exception: Couldn't delete /var/lib/clickhouse/access/38373166-2d31-6134-6164-373733313063.sql. (FILE_DOESNT_EXIST)

  25.11cicd-failurein-progress
  Altinity/clickhouse-regression#64 · Filter by author CarlosFelipeOR opened on Nov 13, 2025
  6