[IGNITE-13119] Data race when getting index rebuild status

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.9
• Assignee: Kirill Tkalenko
• Reporter: Kirill Tkalenko
• Reviewer: Taras Ledkov
• Created: 04/Jun/20 11:53
• Updated: 06/Aug/21 15:23
• Resolved: 08/Jun/20 09:17

Description

Now it is possible data race when getting status of building an index.
This is possible due to method [1] can invoke earlier [2].

It can reproduce if modify the code here: org.apache.ignite.internal.processors.query.h2.IgniteH2Indexing#rebuildIndexesFromHash
But this will not give a 100% repeat of the problem.

rebuildCacheIdxFut.listen(fut -> {
 Throwable err = fut.error();

if (isNull(err)) {
 try {
 U.sleep(10_000);
 
 markIndexRebuild(cacheName, false);
 }
 catch (Throwable t) {
 err = t;

rebuildCacheIdxFut.onDone(t);
 }
 }

if (nonNull(err))
 U.error(log, "Failed to rebuild indexes for cache: " + cacheName, err);
 });

[1] - org.apache.ignite.internal.IgniteInternalFuture#get()
[2] - org.apache.ignite.internal.IgniteInternalFuture#listen

Issue Links

• links to: GitHub Pull Request #7901