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Posted to issues@hbase.apache.org by "Jianwei Cui (JIRA)" <ji...@apache.org> on 2016/03/09 12:44:40 UTC
[jira] [Created] (HBASE-15433) SnapshotManager#restoreSnapshot not
update table and region count quota correctly when encountering exception
Jianwei Cui created HBASE-15433:
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Summary: SnapshotManager#restoreSnapshot not update table and region count quota correctly when encountering exception
Key: HBASE-15433
URL: https://issues.apache.org/jira/browse/HBASE-15433
Project: HBase
Issue Type: Bug
Components: snapshots
Affects Versions: 2.0.0
Reporter: Jianwei Cui
In SnapshotManager#restoreSnapshot, the table and region quota will be checked and updated as:
{code}
try {
// Table already exist. Check and update the region quota for this table namespace
checkAndUpdateNamespaceRegionQuota(manifest, tableName);
restoreSnapshot(snapshot, snapshotTableDesc);
} catch (IOException e) {
this.master.getMasterQuotaManager().removeTableFromNamespaceQuota(tableName);
LOG.error("Exception occurred while restoring the snapshot " + snapshot.getName()
+ " as table " + tableName.getNameAsString(), e);
throw e;
}
{code}
The 'checkAndUpdateNamespaceRegionQuota' will fail if regions in the snapshot make the region count quota exceeded, then, the table will be removed in the 'catch' block. This will make the current table count and region count decrease, following table creation or region split will succeed even if the actual quota is exceeded.
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