X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?p=controller.git;a=blobdiff_plain;f=opendaylight%2Fprotocol_plugins%2Fopenflow%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fprotocol_plugin%2Fopenflow%2Finternal%2FOFStatisticsManager.java;h=bae49d511a2f853f61d428f0751ea7b231539831;hp=3c02c1762875eceb1ba226f8b333584af9b852bf;hb=7003730382163cfce52d89b0bd08491097a389dc;hpb=bcb16d1f4b1b1f2ac28553edb0aafc5ca770eff1

diff --git a/opendaylight/protocol_plugins/openflow/src/main/java/org/opendaylight/controller/protocol_plugin/openflow/internal/OFStatisticsManager.java b/opendaylight/protocol_plugins/openflow/src/main/java/org/opendaylight/controller/protocol_plugin/openflow/internal/OFStatisticsManager.java
index 3c02c17628..bae49d511a 100644
--- a/opendaylight/protocol_plugins/openflow/src/main/java/org/opendaylight/controller/protocol_plugin/openflow/internal/OFStatisticsManager.java
+++ b/opendaylight/protocol_plugins/openflow/src/main/java/org/opendaylight/controller/protocol_plugin/openflow/internal/OFStatisticsManager.java
@@ -155,6 +155,20 @@ IInventoryShimExternalListener, CommandProvider {
         }
     }
 
+    private short getStatsQueueSize() {
+        String statsQueueSizeStr = System.getProperty("of.statsQueueSize");
+        short statsQueueSize = INITIAL_SIZE;
+        if (statsQueueSizeStr != null) {
+            try {
+                statsQueueSize = Short.parseShort(statsQueueSizeStr);
+                if (statsQueueSize <= 0) {
+                    statsQueueSize = INITIAL_SIZE;
+                }
+            } catch (Exception e) {
+            }
+        }
+        return statsQueueSize;
+    }
     /**
      * Function called by the dependency manager when all the required
      * dependencies are satisfied
@@ -166,8 +180,8 @@ IInventoryShimExternalListener, CommandProvider {
         portStatistics = new ConcurrentHashMap<Long, List<OFStatistics>>();
         tableStatistics = new ConcurrentHashMap<Long, List<OFStatistics>>();
         dummyList = new ArrayList<OFStatistics>(1);
+        pendingStatsRequests = new LinkedBlockingQueue<StatsRequest>(getStatsQueueSize());
         statisticsTimerTicks = new ConcurrentHashMap<Long, StatisticsTicks>(INITIAL_SIZE);
-        pendingStatsRequests = new LinkedBlockingQueue<StatsRequest>(INITIAL_SIZE);
         switchPortStatsUpdated = new LinkedBlockingQueue<Long>(INITIAL_SIZE);
         switchSupportsVendorExtStats = new ConcurrentHashMap<Long, Boolean>(INITIAL_SIZE);
         txRates = new HashMap<Long, Map<Short, TxRates>>(INITIAL_SIZE);