PdbWriters are now closed by the cache TagsToFile

we do not have to close the files when the input streams are idle.

performanceDb/src/main/java/org/lucares/performance/db/PerformanceDb.java

@@ -9,8 +9,6 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.Optional;
 import java.util.SortedSet;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.TimeoutException;
 import java.util.stream.Stream;
 
 import org.lucares.collections.LongList;
@@ -64,7 +62,7 @@ public class PerformanceDb implements AutoCloseable {
 			long nextSync = lastSync + timeBetweenSyncs.toMillis();
 
 			while (true) {
-				final Optional<Entry> entryOptional = nextEntry(entries);
+				final Optional<Entry> entryOptional = entries.next();
 				if (!entryOptional.isPresent()) {
 					break;
 				}
@@ -112,16 +110,6 @@ public class PerformanceDb implements AutoCloseable {
 		}
 	}
 
-	private Optional<Entry> nextEntry(final BlockingIterator<Entry> entries) throws InterruptedException {
-
-		try {
-			return entries.next(10, TimeUnit.SECONDS);
-		} catch (final TimeoutException e) {
-			tagsToFile.clearWriterCache();
-		}
-		return entries.next();
-	}
-
 	/**
 	 *
 	 * @param query