RyanLin5967 opened a new issue, #916:
URL: https://github.com/apache/hudi-rs/issues/916
### Is there an existing issue for this?
- [x] I have searched the existing issues
### Description of the bug
Currently, listing drops a log file unless the instant in its name
completed, and on table version 6 a log file written while a compaction is
pending is named after that compaction, so those writes are missing from reads.
Table versions 8 and 9 read them.
### Steps To Reproduce
```python
import tempfile
from pyspark.sql import SparkSession
from hudi import HudiTableBuilder, HudiReadOptions
spark = (SparkSession.builder
.config("spark.jars.packages",
"org.apache.hudi:hudi-spark4.0-bundle_2.13:1.2.1")
.config("spark.serializer",
"org.apache.spark.serializer.KryoSerializer").getOrCreate())
path = tempfile.mkdtemp()
opts = {"hoodie.table.name": "t", "hoodie.datasource.write.recordkey.field":
"id",
"hoodie.datasource.write.table.type": "MERGE_ON_READ",
"hoodie.write.table.version": "6",
"hoodie.compact.inline": "false", "hoodie.compact.schedule.inline":
"true",
"hoodie.compact.inline.max.delta.commits": "1"}
for v in (1, 2, 3):
spark.createDataFrame([("a", v)], "id STRING, v
LONG").write.format("hudi") \
.options(**opts).mode("append").save(path)
# the second write schedules a compaction, and the third writes its log file
under that pending instant
t = HudiTableBuilder.from_base_uri(path).build()
print(sorted((r["id"], r["v"]) for b in t.read(HudiReadOptions()) for r in
b.to_pylist()))
# [('a', 2)], should be [('a', 3)]
print(sorted((r["id"], r["v"]) for r in
spark.read.format("hudi").load(path).collect()))
# [('a', 3)], so Hudi's Spark reader reads the write made during the pending
compaction
```
### Expected behavior
The read returns `[('a', 3)]`, as Spark's does.
### Screenshots / Logs
_No response_
### Software information
- Operating system: macOS 26.7.1, arm64 (Darwin 25.6.0)
- Rust version: none, the PyPI wheel on Python 3.12.16
- Project version: hudi 0.5.0, and main (its CI wheel, 0.6.0.dev0)
- Writer: Hudi 1.2.1 (`hudi-spark4.0-bundle_2.13`) on pyspark 4.0.5, Java
21.0.12.1
### Additional context
_No response_
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