ByteYue opened a new pull request, #21512: URL: https://github.com/apache/doris/pull/21512
## Proposed changes The former logic would directly use read_context as segment iterator's _context `_context = read_context;`. But if it's invoked by schema change or compaction, it would pass one read_context whose stats is nullptr like the following picture.  Thus the following file cache statistics assignation would get one invalid address `_read_options.io_ctx.file_cache_stats = &read_context->stats->file_cache_stats;` which would be the offset for file_cache_stats in stats. This pr would make the read_context->stats always valid to prevent such coredump. ## Further comments If this is a relatively large or complex change, kick off the discussion at [[email protected]](mailto:[email protected]) by explaining why you chose the solution you did and what alternatives you considered, etc... -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
