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Posted to dev@hbase.apache.org by "He Liangliang (JIRA)" <ji...@apache.org> on 2015/03/16 12:27:38 UTC
[jira] [Created] (HBASE-13249) Concurrency issue in
SnapshotFileCache
He Liangliang created HBASE-13249:
-------------------------------------
Summary: Concurrency issue in SnapshotFileCache
Key: HBASE-13249
URL: https://issues.apache.org/jira/browse/HBASE-13249
Project: HBase
Issue Type: Bug
Reporter: He Liangliang
Assignee: He Liangliang
In refreshCache, if step 3 fails for some reason, the successive call may return success directly but the cache is already corrupt (got cleared in the previous failed call):
{quote}
// 1. update the modified time
this.lastModifiedTime = lastTimestamp;
// 2.clear the cache
this.cache.clear();
Map<String, SnapshotDirectoryInfo> known = new HashMap<String, SnapshotDirectoryInfo>();
// 3. check each of the snapshot directories
{quote}
This will cause files got deleted unexpectedly.
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