Metadata got deleted while using lib.defragment_symbol_data

[himsheda]

Describe the bug

I had a library with defragmanted symbols. each symbol had data and metadata. but after defragment_symbol_data api call its returning a versioned item with metadata = None and if you read the metadata from db then its also None.

its a serious bug.

I am using arcticdb 4.4.3

Steps/Code to Reproduce

store["library_name"].defragment_symbol_data("symbol")

Output:

VersionedItem(symbol='symbol', library='library_name', data=n/a, version=232, metadata=None, host='S3(endpoint=uri, bucket=bucket-name)', timestamp=1756122299472736959)

Expected Results

VersionedItem(symbol='symbol', library='library_name', data=n/a, version=232, metadata={<metadata>}, host='S3(endpoint=uri, bucket=bucket-name)', timestamp=1756122299472736959)

OS, Python Version and ArcticDB Version

Python: 3.8.12 (default, Oct 12 2021, 13:49:34)
[GCC 7.5.0]
OS: Linux-5.15.0-140-generic-x86_64-with-glibc2.17
ArcticDB: 4.4.3

Backend storage used

Minio S3

Additional Context

Try on the symbols won which lib.is_symbol_fragmented(symbol) gives true

[vasil-pashov]

Hello @himsheda, thank you for reporting this!

I'm confirming that this is also reproducible with version 6.1.1 which is the latest one. We have opened a ticket in our internal ticket system. The ticket number is 9889436827.