HBASE-29716 Include sequence ID metadata for HFiles generated by incremental backups #7480
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hgromer
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Nov 25, 2025
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| private void close(final StoreFileWriter w) throws IOException { | ||
| private void close(final StoreFileWriter w, final WriterInfo wl) throws IOException { |
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Small thing, mind changing wl to wi here to match the rest of the patch?
hgromer
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Nov 25, 2025
| wl.written += length; | ||
| wi.writer.append((ExtendedCell) kv); | ||
| wi.written += length; | ||
| wi.maxSequenceId = Math.max(kv.getSequenceId(), wi.maxSequenceId); |
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Any concerns that Cell#getSequenceId is removed in HBase 3? Any plans for how we should handle that?
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Ah, as long as this is an ExtendedCell looks like this should be possible in branch-3
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The HFiles generated by incremental backups cannot be properly read by tooling such as the ClientSideRequestScanner, because the generated HFiles do not include the MAX_SEQ_ID metadata. The scanner will ignore cell-level sequence IDs and instead sort the HFiles arbitrarily. This causes incorrect results when scanning overwrites to cells with the same timestamp.
This PR adds a new option to the HFileOutputFormat2 that will calculate and set the required metadata. This only really effects the ClientSideRequestScanner, as the sequence ID will be recalculated when bulk-loaded anyways.
Part of https://issues.apache.org/jira/browse/HBASE-29716