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sleep after a failed database connection attempt #595

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Merged
baltzell merged 1 commit into from
May 9, 2025
Merged

sleep after a failed database connection attempt #595

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8 changes: 8 additions & 0 deletions common-tools/clas-detector/src/main/java/org/jlab/detector/calib/utils/ConstantsManager.java
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
package org.jlab.detector.calib.utils;

import java.lang.Thread;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
Expand All @@ -19,6 +20,8 @@
*/
public class ConstantsManager {

public static final int DBERROR_SLEEP_SECONDS=3;

private static Logger LOGGER = Logger.getLogger(ConstantsManager.class.getName());

private DatabaseConstantsDescriptor defaultDescriptor = new DatabaseConstantsDescriptor();
Expand Down Expand Up @@ -116,6 +119,11 @@ private synchronized void loadConstantsForRun(int run) {
LOGGER.log(Level.SEVERE,
"[ConstantsManager] exceeded maximum requests " + requests + " for run " + run);
}
else if (requests > 1) {
LOGGER.log(Level.SEVERE,"[ConstantsManager] sleeping a bit before trying again ...");
try { Thread.sleep(DBERROR_SLEEP_SECONDS*1000); }
catch (InterruptedException e) {}
}
}

LOGGER.log(Level.INFO, "[ConstantsManager] ---> loading table for run = " + run);
Expand Down
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