[ANNOUNCE] Hudi Weekly Community Update(2020-03-08~20200315)

[leesf <le...@gmail.com>]

Dear community,

Nice to share Hudi community weekly update for 2020-03-08 ~ 2020-03-15 with
updates on release, features, bug fix and tests.

Development


[Release] Release 0.5.2-incubating rc1 has been cut and under voting, you
are highly welcome to verify the rc [1]
[Metrics] A discussion to move hudi metrics code to hudi-common module, so
that other modules would reuse the hudi metrics code [2]

[1]
https://lists.apache.org/thread.html/rcca48074438580ff755a84e2cfd1e7b710b2121281024e79d92f33af%40%3Cdev.hudi.apache.org%3E
[2]
https://lists.apache.org/thread.html/r1f8b9161a1e92b2c4052e93bc44b7e9f739999f4741ec3f873914e6f%40%3Cdev.hudi.apache.org%3E

Features

[Utilities] Hudi Dataset Snapshot Exporter [3]
[Multi Engine] Remove the dependency of EmbeddedTimelineService from
HoodieReadClient [4]
[CLI] Change CLI command names to not have overlap [5]
[CLI] Add delete savepoint for CLI [6]
[Performance] Return a dummy Spark relation after writing the DataFrame [7]
[Usability] Replace Guava's Hashing with an equivalent in NumericUtils.java
[8]

[3] https://issues.apache.org/jira/browse/HUDI-344
[4] https://issues.apache.org/jira/browse/HUDI-681
[5] https://issues.apache.org/jira/browse/HUDI-689
[6] https://issues.apache.org/jira/browse/HUDI-692
[7] https://issues.apache.org/jira/browse/HUDI-656
[8] https://issues.apache.org/jira/browse/HUDI-629


Bugs

[Utilities] Fixing delete tests for DeltaStreamer [9]

[9] https://issues.apache.org/jira/browse/HUDI-667

Tests

[Tests] Added unit-tests for HUDI metrics [10]
[Tests] Added test cases for TestDiskBasedMap [11]
[Tests] Improve exporter tests [12]

[10] https://issues.apache.org/jira/browse/HUDI-688
[11] https://issues.apache.org/jira/browse/HUDI-670
[12] https://issues.apache.org/jira/browse/HUDI-344

Best,
Leesf