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Sep 1, 2025
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Refine 2.8.3 release doc #383

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Refine 2.8.3 release doc
chenziliang Sep 1, 2025
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chenziliang Sep 1, 2025
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54 changes: 28 additions & 26 deletions docs/enterprise-v2.8.md
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Expand Up @@ -46,41 +46,43 @@ Component versions:
#### Changelog {#changelog_2_8_3}
Compared to the [2.8.2](#2_8_2) release:
* timeplusd 2.8.27 -> 2.8.28
* Some new features and enhancements in 2.9 are ported to 2.8.3:
* Refined connection timeouts and improved ClickHouse connection pooling.
* New features, enhancements:
* Introduced DLQ support for Materialized View.
* Introduced rack-aware placement for distributed storage.
* Supported auto-increment columns and auto-increment primary keys for Mutable stream.
* Supported nullable key columns in Mutable streams.
* Supported secondary index on coalesced Mutable streams.
* Refined JSON encoding/casting with better null handling.
* Added SSL configuration support for ClickHouse connections.
* Upgraded librdkafka and improved Kafka logging.
* Enhanced log visibility and fixed log level propagation issues.
* Added two-phase commit for local checkpoints.
* Supported minimum auto checkpoint interval setting.
* Improved checkpoint log handling (skip compacted logs, applied sequence numbers, fix unknown epoch dirs).
* Refined recovery from failed checkpoint epochs.
* Fixed hybrid changelog conversions and nullable key handling.
* Improved hop/tumble window aggregations in hybrid execution.
* Refined pure memory mode for hybrid hash tables.
* Enhanced catch-up from historical store.
* Added retries in stream sinks for reliability.
* Refined connection timeouts and improved ClickHouse connection pooling for Materialiazed View.
* Added two-phase commit for local checkpoints for Materialized View.
* Supported minimum auto checkpoint interval setting for Materialized View.
* Refined recovery from failed checkpoint epochs for Materialized View.
* Improved hop/tumble window aggregations in hybrid execution for Materialized View.
* Refined pure memory mode for hybrid hash tables for Materialized View.
* Added retries in stream sinks for reliability for Materialized View.
* Enforced explicit INTO targets for scheduled Materialized Views.
* Introduced DLQ support for failed MatView inserts.
* Improved error reporting for abnormal finishes and refined consistency.
* Supported secondary index on coalesced mutable streams.
* Introduced rack-aware placement for distributed storage.
* Optimized storage commit pool.
* Performance tuning for batch Kafka ingestion.
* Supported nullable key columns in mutable streams.
* Fixed sparse column handling.
* Improved reverse index consistency by truncating garbage data.
* Supported auto-increment columns and auto-increment primary keys.
* Improved error reporting for abnormal finishes and refined consistency for Materialized View.
* Improved schema subject naming.
* Upgraded librdkafka and improved Kafka logging.
* Enhanced float parsing precision in VALUES format.
* Storage commit pool enhancement.
* Performance enhancements for batch Kafka ingestion.
* Workload balance and backpressure handling for ReplicatedLog to improve the overall cluster stablity.
* timeplusd log deduplication to save 3rd party's log aggregator's data volume
* Bugfixes:
* Fixed hybrid changelog conversions and nullable key handling.
* Fixed sparse column handling.
* Fixed big-endian encoding for Kafka message keys.
* Refined JSON encoding/casting with better null handling.
* Fixed backfill from historical store.
* Fixed checkpoint log handling (skip compacted logs, applied sequence numbers, fix unknown epoch dirs).
* Fixed dynamic changing log level propagation issues.
* Fixed reverse index consistency by truncating garbage data.
* timeplus_web 2.8.12 -> 2.8.18
* Some new UI features and enhancements in 2.9 are ported to 2.8.3:
* New UI features and enhancements:
* **Cluster Management:**
* Enhanced cluster node generation, layout, and visualization.
* Improved cluster table, warnings, and drilldown navigation.
* Added MV balance page, later hidden for refinement.
* Updated cluster page design and improved node stats/details.
* Added percentage metrics in node stats and improved stats table layout.
* Various UI/UX fixes (offline node opacity, layout adjustments).
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