JingsongLi commented on a change in pull request #56:
URL: https://github.com/apache/flink-table-store/pull/56#discussion_r833192673
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File path:
flink-table-store-core/src/main/java/org/apache/flink/table/store/file/operation/FileStoreExpireImpl.java
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@@ -101,18 +120,28 @@ public void expire() {
}
// no snapshot can be retained, expire all but last one
- expireUntil(latestSnapshotId);
+ expireUntil(earliest, latestSnapshotId);
}
- private void expireUntil(long endExclusiveId) {
- if (endExclusiveId <= Snapshot.FIRST_SNAPSHOT_ID) {
+ private void expireUntil(long earliestId, long endExclusiveId) {
+ if (endExclusiveId <= earliestId) {
+ // write hint file if not exists
+ Path hint = new Path(pathFactory.snapshotDirectory(),
SnapshotFinder.EARLIEST);
+ try {
+ if (!hint.getFileSystem().exists(hint)) {
Review comment:
No expire happens:
write the hint file in order to see the earliest snapshot directly next time
should avoid duplicate writes when the file exists
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