q763562998 commented on code in PR #17884:
URL: https://github.com/apache/doris/pull/17884#discussion_r1159405620
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fe/fe-core/src/main/java/org/apache/doris/catalog/RefreshManager.java:
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@@ -19,26 +19,44 @@
import org.apache.doris.analysis.CreateTableStmt;
import org.apache.doris.analysis.DropTableStmt;
+import org.apache.doris.analysis.RefreshCatalogStmt;
import org.apache.doris.analysis.RefreshDbStmt;
import org.apache.doris.analysis.RefreshTableStmt;
import org.apache.doris.analysis.TableName;
import org.apache.doris.catalog.external.ExternalDatabase;
import org.apache.doris.common.DdlException;
+import org.apache.doris.common.ThreadPoolManager;
import org.apache.doris.common.UserException;
import org.apache.doris.datasource.CatalogIf;
import org.apache.doris.datasource.ExternalCatalog;
import org.apache.doris.datasource.ExternalObjectLog;
import org.apache.doris.datasource.InternalCatalog;
+import org.apache.doris.qe.DdlExecutor;
+import com.google.common.collect.Maps;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import java.util.Map;
+import java.util.concurrent.ScheduledThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
// Manager for refresh database and table action
-public class RefreshManager {
+public class RefreshManager implements Runnable {
private static final Logger LOG =
LogManager.getLogger(RefreshManager.class);
+ private static final ScheduledThreadPoolExecutor REFRESH_TIMER =
ThreadPoolManager.newDaemonScheduledThreadPool(1,
+ "catalog-refresh-timer-pool", true);
+ // Unit:SECONDS
+ private static final int REFRESH_TIME = 5;
+ // key is the name of a catalog, value is an array of length 2, used to
store
+ // the original refresh time and the current remaining time of the catalog
+ private Map<String, Integer[]> refreshMap = Maps.newConcurrentMap();
+
+ public RefreshManager() {
+ REFRESH_TIMER.scheduleAtFixedRate(this::run, 0, REFRESH_TIME,
TimeUnit.SECONDS);
Review Comment:
Ok, I thought `RefreshManager` was a singleton object before such an bug
occurred, I will correct it. And add `start()` in
`Env.startMasterOnlyDaemonThreads()`
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