maedhroz commented on code in PR #2932:
URL: https://github.com/apache/cassandra/pull/2932#discussion_r1406575124
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src/java/org/apache/cassandra/index/sai/StorageAttachedIndex.java:
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@@ -390,10 +390,15 @@ public Callable<?> getPreJoinTask(boolean hadBootstrap)
public Callable<?> getTruncateTask(long truncatedAt)
{
/*
- * index files will be removed as part of base sstable lifecycle in
- * {@link LogTransaction#delete(java.io.File)} asynchronously.
+ * index files will be removed as part of base sstable lifecycle in
{@link LogTransaction#delete(java.io.File)}
+ * asynchronously, but we need to mark the index queryable because if
the truncation is during the initial
+ * build of the index it won't get marked queryable by the build.
Review Comment:
If the index is currently marked as non-queryable, and we truncate, is this
safe because truncation will remove all the on-disk artifacts (or lack of those
artifacts) that made the index non-queryable in the first place? (Still
thinking through this, but want to make sure there's no way we accidentally
make an index queryable when we shouldn't...)
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