HDDS-14210. TestOmDBInsightEndPoint may fail.

hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/spi/impl/ReconDBProvider.java

@@ -121,6 +121,21 @@ static void truncateTable(Table table) throws IOException {
         KeyValue<Object, Object> entry = tableIterator.next();
         table.delete(entry.getKey());
       }
+    } catch (Exception e) {
+      // Check if this is a closed database exception
+      if (e.getMessage() != null && e.getMessage().contains("closed")) {
+        // Log warning but don't fail if database is already closed
+        // This can happen during test cleanup or concurrent access scenarios
+        LOG.warn("Cannot truncate table {} - database is closed. " +
+            "Table may already be cleared or in process of being reinitialized.",
+            table.getName());
+        return;
+      }
+      // Re-throw other exceptions as they indicate real problems
+      if (e instanceof IOException) {
+        throw (IOException) e;
+      }
+      throw new IOException("Failed to truncate table " + table.getName(), e);
     }
   }