Pavel Pereslegin created IGNITE-16177:
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Summary: Snapshot restore operation may hang if cache contains
"empty" partitions
Key: IGNITE-16177
URL: https://issues.apache.org/jira/browse/IGNITE-16177
Project: Ignite
Issue Type: Bug
Reporter: Pavel Pereslegin
The snapshot restore may hang when some of the cache group partitions have not
been physically created (for example, there is not enough data in the cache).
Reproducer
{code:java}
public class IgniteClusterSnapshotRestoreEmptyPartsTest extends
IgniteClusterSnapshotRestoreBaseTest {
@Test
public void testRestoreWithEmptyPartition() throws Exception {
// Cache with 1024 partitions.
CacheConfiguration<Integer, Object> cacheCfg1 = new
CacheConfiguration<>(CACHE1);
// Add only 10 keys (only 10 partitions will be created on the disk).
IgniteEx ignite = startGridsWithCache(1, 1024, Integer::new, cacheCfg1);
// Snapshot contains only 10 (out of 1024 "affinity" partitions).
ignite.snapshot().createSnapshot(SNAPSHOT_NAME).get(TIMEOUT);
ignite.cache(CACHE1).destroy();
// The restore operation hangs during the "preload" phase.
ignite.snapshot().restoreSnapshot(SNAPSHOT_NAME, null).get(TIMEOUT);
}
}
{code}
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