TemporaryTableMgr.java

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// to you under the Apache License, Version 2.0 (the
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// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
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package org.apache.doris.catalog;

import org.apache.doris.common.util.MasterDaemon;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

/*
 * Delete temporary table when its creating session is gone
 */
public class TemporaryTableMgr extends MasterDaemon {

    private static final Logger LOG = LogManager.getLogger(TemporaryTableMgr.class);

    public TemporaryTableMgr() {
        super("temporary-table-mgr");
    }

    @Override
    protected void runAfterCatalogReady() {
        // TODO: do nothing now until we fix memory link on Env#sessionReportTimeMap and Env#aliveSessionSet
        // Map<String, Long> sessionReportTimeMap = Env.getCurrentEnv().getSessionReportTimeMap();
        // long currentTs = System.currentTimeMillis();
        // Collection<DatabaseIf<? extends TableIf>> internalDBs = Env.getCurrentEnv().getInternalCatalog().getAllDbs();
        // for (DatabaseIf<? extends TableIf> db : internalDBs) {
        //     for (TableIf table : db.getTables()) {
        //         if (!table.isTemporary()) {
        //             continue;
        //         }
        //
        //         String sessionId = Util.getTempTableSessionId(table.getName());
        //         boolean needDelete = false;
        //         if (!sessionReportTimeMap.containsKey(sessionId)) {
        //             LOG.info("Cannot find session id for table " + table.getName());
        //             needDelete = true;
        //         } else if (currentTs > sessionReportTimeMap.get(sessionId)
        //                 + Config.loss_conn_fe_temp_table_keep_second * 1000) {
        //             LOG.info("Temporary table " + table.getName() + " is out of time: "
        //                     + new Date(sessionReportTimeMap.get(sessionId)) + ", current: " + new Date(currentTs));
        //             needDelete = true;
        //         }
        //
        //         if (needDelete) {
        //             LOG.info("Drop temporary table " + table);
        //             try {
        //                 Env.getCurrentEnv().getInternalCatalog()
        //                     .dropTableWithoutCheck((Database) db, (Table) table, false, true);
        //             } catch (Exception e) {
        //                 LOG.error("Drop temporary table error: db: {}, table: {}",
        //                         db.getFullName(), table.getName(), e);
        //             }
        //         }
        //     }
        // }
    }
}