Alluxio 2.9.3 Release

We are excited to announce the release of Alluxio 2.9.3! This is an edge release for Alluxio open source on top of Alluxio 2.9.2, with various bug fixes, documentation, and improvements.

HIGHLIGHTS

Revert of default TTL behavior change

In the previous release, the default TTL behavior was modified but a backwards compatibility issue was discovered. This version changes it back to the original behavior of deleting the data from both Alluxio and the underlying storage as opposed to only deleting the data from Alluxio. See more details in the corresponding github PR.

IMPROVEMENTS AND BUGFIXES SINCE 2.9.2

Notable configuration property changes

Property key	Old 2.9.2 value	New 2.9.3 value	PR
alluxio.proxy.s3.multipart.upload.cleaner.enabled	true	false	#16937
alluxio.proxy.s3.v2.version.enabled	true	false	#16937
alluxio.user.file.create.ttl.action	DELETE_ALLUXIO	FREE	#17039

Benchmark

Add LoadMetadata and CreateTree operation to StressMasterBench (#17042) (ace82a)

Build

Fix dependencies conflicts thrown by trino (#17129) (9c1f00)
Update ci version (#16964) (1bf26f)

Client

Refactor collectMetrics command (#17111) (b7866e)
Set ttlaction back to free (#17039) (ce5433)

FUSE/POSIX

Fix fuse metadata command ClassCastException (#17035) (5425c2)

Journal and metadata sync

Fix file system merge journal context (#17071) (57c078)
Fix metadata sync journalling when using UFS journal (#17032) (6bbe71)
Merge JournalContext for persistence (#16966) (cb20cc)
Merge journal context in LostFileDetector (#16971) (952bd4)

Job Service

Add abstract job (#17103) (71521f)
Refactor LoadManager to Scheduler (#16982) (8edf50)

Docker and K8s

Add UseContainerSupport flag to default value.yaml of k8s helm chart (#17055) (b16a3f)
Bump CSI package version to fix security alert (#17117) (1ad1cc)

Log

Add more details in Log4j default settings (#17072) (595a55)

Master

Dump metrics + stacks on failover/crash (#17081) (7f3354)
Fix setTtl workflow and ttlbucket bugs (#16933) (731385)
Cache Block Location to save memory (#16953) (0645ea)
Improve state lock tracking and report on error (#16984) (654969)
Add a property to disable file access time (#16981) (163b3f)

Metrics

Fix collectMetrics command in k8s (#17127) (9532ce)
Add metric for cached block location (#17056) (73b4d6)

RPC

Support getBlockInfo excluding mount-related info (#17006) (276644)

S3 API

Make light and heavy thread pool configurable for s3 proxy v2 (#17082) (65ed1b)
Fix NPE for s3 proxy v2 (#17086) (a5cf2a)
Fix retry function and S3 abort upload (#17094) (cbf24b)
Enable v2 s3 proxy by default (#16937) (7f2f15)

CLI

Enhance the capacity report to show worker registration info (#16927) (df0ae1)

UFS

Fix property identity typo error (#17109) (fd7350)
Fix content hash for GCS v2 stream (#17089) (b59df3)
Remove HdfsUnderFileSystemFactory from service loading in COSN UFS jar (#17024) (c9ed63)

ACKNOWLEDGEMENTS

We want to thank the community for their valuable contributions to the Alluxio 2.9.3 release. Especially, we would like to thank:

Haoning Sun (Haoning-Sun), Kaijie Chen (kaijchen), Xinran Dong (007DXR), Yaolong Liu (codings-dan), humengyu (humengyu2012), Xinyu Deng (voddle), Baolong Mao (maobaolong), Tianbao Ding (flaming-archer), fengshunli, and jianghuazhu

Enjoy the new release and look forward to hearing your feedback on our community slack channel.