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Posted to notifications@skywalking.apache.org by "mrproliu (via GitHub)" <gi...@apache.org> on 2026/04/05 00:55:01 UTC
[I] [Bug] Segments dated 1970-01-01 are unexpectedly created and persist on disk [skywalking]
mrproliu opened a new issue, #13792:
URL: https://github.com/apache/skywalking/issues/13792
### Search before asking
- [x] I had searched in the [issues](https://github.com/apache/skywalking/issues?q=is%3Aissue) and found no similar issues.
### Apache SkyWalking Component
BanyanDB (apache/skywalking-banyandb)
### What happened
A segment directory named `seg-19700101` (dated 1970-01-01, Unix epoch) is created on disk under the group's TSDB data directory. This segment persists across restarts and participates in normal operations
including rotation, retention, and snapshots.
The 1970-dated segment also interferes with retention logic — since it's always the "oldest" segment, it may be retained or deleted in unexpected ways depending on TTL configuration.
### What you expected to happen
Segments should only be created with reasonable, valid dates. A segment dated 1970-01-01 should never exist in a production system. The system should either reject the creation of such segments or validate
timestamps before creating segment directories.
### How to reproduce
Continuously write trace data to BanyanDB. After some time, a seg-19700101 directory appears on disk under the group's TSDB data directory.
### Anything else
_No response_
### Are you willing to submit a pull request to fix on your own?
- [ ] Yes I am willing to submit a pull request on my own!
### Code of Conduct
- [x] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)
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Re: [I] [Bug] Segments dated 1970-01-01 are unexpectedly created and persist on disk [skywalking]
Posted by "hanahmily (via GitHub)" <gi...@apache.org>.
hanahmily closed issue #13792: [Bug] Segments dated 1970-01-01 are unexpectedly created and persist on disk
URL: https://github.com/apache/skywalking/issues/13792
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