Arrow vector in Java(Scala) allocate byteBuffer error while read the bytes from Python pyarrow
- Dominant language
- Java
- Stars
- 94
- Forks
- 152
- Avg merge
- 3d 16h
- Merged PRs (30d)
- 11
Description
I am using scala arrow 1.0.1 and pyarrow 1.0.1
Following error occurs when scala decode the byte that encoded from python.
tried to downgrade pyarrow to 0.17.0, 0.14.1, error still exists.
This is a loop function to decode the same data repeatedly. The error occurs sometimes, after an error occurs, following code could still work correctly.
```
Error stack trace java.nio.ByteBuffer.allocate(ByteBuffer.java:334)
com.intel.analytics.zoo.shaded.arrow.vector.ipc.message.MessageSerializer.readMessage(MessageSerializer.java:692)
com.intel.analytics.zoo.shaded.arrow.vector.ipc.message.MessageChannelReader.readNext(MessageChannelReader.java:57)
com.intel.analytics.zoo.shaded.arrow.vector.ipc.ArrowStreamReader.readSchema(ArrowStreamReader.java:164)
com.intel.analytics.zoo.shaded.arrow.vector.ipc.ArrowReader.initialize(ArrowReader.java:170)
com.intel.analytics.zoo.shaded.arrow.vector.ipc.ArrowReader.ensureInitialized(ArrowReader.java:161)
com.intel.analytics.zoo.shaded.arrow.vector.ipc.ArrowReader.getVectorSchemaRoot(ArrowReader.java:63)
```
How to fix it?
**Reporter**: [Litchy Soong](https://issues.apache.org/jira/browse/ARROW-10341)
**Note**: *This issue was originally created as [ARROW-10341](https://issues.apache.org/jira/browse/ARROW-10341). Please see the [migration documentation](https://github.com/apache/arrow/issues/14542) for further details.*
Contributor guide
Research direction
Start at com.intel.analytics.zoo.shaded.arrow.vector.ipc.message.MessageSerializer.readMessage and follow the stack through MessageChannelReader.readNext and ArrowStreamReader.readSchema. Reproduce repeated Scala reads of bytes encoded by Python pyarrow 1.0.1, focusing on the intermittent ByteBuffer allocation failure; done means the repeated decode no longer fails intermittently.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java, python, scala
- Domain
- data-engineering
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100