sandynz commented on a change in pull request #16523:
URL: https://github.com/apache/shardingsphere/pull/16523#discussion_r839541586
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File path:
shardingsphere-mode/shardingsphere-mode-type/shardingsphere-memory-mode/shardingsphere-memory-mode-core/src/main/java/org/apache/shardingsphere/mode/manager/memory/lock/MemoryLockContext.java
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@@ -56,7 +58,6 @@ public ShardingSphereLock getOrCreateSchemaLock(final String
schemaName) {
@Override
public boolean isLockedSchema(final String schemaName) {
- ShardingSphereLock shardingSphereLock = locks.get(schemaName);
- return null != shardingSphereLock &&
shardingSphereLock.isLocked(schemaName);
+ return null != schemaName && null != locks.get(schemaName) &&
locks.get(schemaName).isLocked(schemaName);
}
Review comment:
`locks.get(schemaName)` run 2 times, the second time of
`locks.get(schemaName)` might return different value as the first result.
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