v0.11.2

Release date: January 04, 2025

This version fixes the following critical issues:

• Automatic alteration of the table may lead to inconsistent metadata.
• Compaction doesn't use files in the local cache.

Notes

This version modifies the default object storage cache paths:

• The path for write cache has changed from the default {data_home}/object_cache/write to {data_home}/cache/object/write.
• The path for read cache has changed from the default {data_home}/object_cache/read to {data_home}/cache/object/read.
• When configuring write cache and read cache, only the root directory of the cache needs to be specified, which defaults to {data_home}.

We recommend that users no longer manually configure the cache paths after version 0.11, as the database can automatically set appropriate paths.

🚀 Features

• feat(bloom-filter): add memory control for creator by @zhongzc in #5185
• feat(bloom-filter): add bloom filter reader by @zhongzc in #5204
• feat(index-cache): abstract IndexCache to be shared by multi types of indexes by @zhongzc in #5219
• feat: logs query endpoint by @waynexia in #5202
• feat(mito): parquet memtable reader by @v0y4g3r in #4967
• feat(bloom-filter): impl batch push to creator by @zhongzc in #5225
• feat: introduce the Limiter in frontend to limit the requests by in-flight write bytes size. by @zyy17 in #5231
• feat: add some critical metrics to flownode by @waynexia in #5235
• feat(flow): check sink table mismatch on flow creation by @discord9 in #5112
• feat: Add vec_mul function. by @linyihai in #5205
• feat(bloom-filter): integrate indexer with mito2 by @zhongzc in #5236
• feat(bloom-filter): bloom filter applier by @waynexia in #5220
• feat(config): add bloom filter config by @zhongzc in #5237
• feat(mito): add bloom filter read metrics by @zhongzc in #5239
• feat: init PgElection with candidate registration by @CookiePieWw in #5209
• feat(vector): add vector functions vec_sub & vec_sum & vec_elem_sum by @KKould in #5230
• feat: add sqlness test for bloom filter index by @waynexia in #5240
• feat: add vec_div function by @linyihai in #5245
• feat: update partition duration of memtable using compaction window by @evenyag in #5197
• feat: override __sequence on creating SST to save space and CPU by @waynexia in #5252
• feat(log-query): implement pagination with limit and offset parameters by @waynexia in #5241
• feat: hints all in one by @fengjiachun in #5194
• feat: support add if not exists in the gRPC alter kind by @evenyag in #5273
• feat: bump opendal and switch prometheus layer to the upstream impl by @waynexia in #5179

🐛 Bug Fixes

• fix: dead links by @nicecui in #5212
• fix: correct write cache's metric labels by @waynexia in #5227
• fix: flow compare null values by @discord9 in #5234
• fix: disable path label in opendal for now by @shuiyisong in #5247
• fix: implement a CacheStrategy to ensure compaction use cache correctly by @evenyag in #5254
• fix(bloom-filter): skip applying for non-indexed columns by @zhongzc in #5246
• fix: correct invalid testing feature gate usage by @sunng87 in #5258
• fix: import tokio-metrics and tokio-metrics-collector by @chenmortal in #5264
• fix(flow): flow's table schema cache by @discord9 in #5251
• fix: flow handle reordered inserts by @discord9 in #5275
• fix: better fmt check from 40s to 4s by @yihong0618 in #5279

🚜 Refactor

• refactor: remove unnecessary wrap by @WenyXu in #5221
• refactor: support to convert time string to timestamp in convert_value() by @zyy17 in #5242
• refactor: adjust index cache page size by @CookiePieWw in #5267
• refactor: flow replace check&better error msg by @discord9 in #5277

📚 Documentation

• docs: add greptimedb-operator project link in 'Tools & Extensions' and other small improvements by @zyy17 in #5216

⚙️ Miscellaneous Tasks

• chore: adjust fuzz tests cfg by @WenyXu in #5207
• ci: fix nightly ci task on nix build by @sunng87 in #5198
• chore: bump opendal to fork version to fix prometheus layer by @waynexia in #5223
• ci: support to pack multiple files in upload-artifacts action by @zyy17 in #5228
• chore: add log for converting region to follower by @WenyXu in #5222
• ci: upload .pdb files too for better windows debug by @discord9 in #5224
• chore: add more info for pipeline dryrun API by @paomian in #5232
• ci: make sure clippy passes before running tests by @sunng87 in #5253
• ci: disable pyo3 build tasks by @sunng87 in #5256
• chore: typo by @discord9 in #5265
• ci: update nix setup by @sunng87 in #5272
• chore: suppress list warning by @v0y4g3r in #5280
• chore: update greptime-proto to include add_if_not_exists by @evenyag in #5289

Build

• build: use 8xlarge as arm default by @evenyag in #5214

New Contributors

• @yihong0618 made their first contribution in #5279
• @chenmortal made their first contribution in #5264

All Contributors

We would like to thank the following contributors from the GreptimeDB community:

@CookiePieWw, @KKould, @WenyXu, @chenmortal, @discord9, @evenyag, @fengjiachun, @linyihai, @nicecui, @paomian, @shuiyisong, @sunng87, @v0y4g3r, @waynexia, @yihong0618, @zhongzc, @zyy17