BUG 2185 : Add JMX API to change the state of a Shard

[controller.git] / opendaylight / md-sal / sal-akka-raft / src / main / java / org / opendaylight / controller / cluster / raft / DefaultConfigParamsImpl.java

diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/DefaultConfigParamsImpl.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/DefaultConfigParamsImpl.java
index dc4145358aa332febafa690baa549fbfccfa91b2..6828c85e20525c8cf2ecc6f2304206a8046d71ea 100644 (file)
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/DefaultConfigParamsImpl.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/DefaultConfigParamsImpl.java
@@ -7,9 +7,15 @@
  */
 package org.opendaylight.controller.cluster.raft;
 
-import scala.concurrent.duration.FiniteDuration;
-
+import com.google.common.base.Strings;
+import com.google.common.base.Supplier;
+import com.google.common.base.Suppliers;
 import java.util.concurrent.TimeUnit;
+import org.opendaylight.controller.cluster.raft.policy.DefaultRaftPolicy;
+import org.opendaylight.controller.cluster.raft.policy.RaftPolicy;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import scala.concurrent.duration.FiniteDuration;
 
 /**
  * Default implementation of the ConfigParams
@@ -18,6 +24,8 @@ import java.util.concurrent.TimeUnit;
  */
 public class DefaultConfigParamsImpl implements ConfigParams {
 
+    private static final Logger LOG = LoggerFactory.getLogger(DefaultConfigParamsImpl.class);
+
     private static final int SNAPSHOT_BATCH_COUNT = 20000;
 
     private static final int JOURNAL_RECOVERY_LOG_BATCH_SIZE = 1000;
@@ -40,28 +48,68 @@ public class DefaultConfigParamsImpl implements ConfigParams {
     public static final FiniteDuration HEART_BEAT_INTERVAL =
         new FiniteDuration(100, TimeUnit.MILLISECONDS);
 
-
     private FiniteDuration heartBeatInterval = HEART_BEAT_INTERVAL;
     private long snapshotBatchCount = SNAPSHOT_BATCH_COUNT;
     private int journalRecoveryLogBatchSize = JOURNAL_RECOVERY_LOG_BATCH_SIZE;
+    private long isolatedLeaderCheckInterval = HEART_BEAT_INTERVAL.$times(1000).toMillis();
+    private FiniteDuration electionTimeOutInterval;
+
+    // 12 is just an arbitrary percentage. This is the amount of the total memory that a raft actor's
+    // in-memory journal can use before it needs to snapshot
+    private int snapshotDataThresholdPercentage = 12;
+
+    private int snaphotChunkSize = SNAPSHOT_CHUNK_SIZE;
+
+    private long electionTimeoutFactor = 2;
+    private String customRaftPolicyImplementationClass;
+
+    Supplier<RaftPolicy> policySupplier = Suppliers.memoize(new PolicySupplier());
 
     public void setHeartBeatInterval(FiniteDuration heartBeatInterval) {
         this.heartBeatInterval = heartBeatInterval;
+        electionTimeOutInterval = null;
     }
 
     public void setSnapshotBatchCount(long snapshotBatchCount) {
         this.snapshotBatchCount = snapshotBatchCount;
     }
 
+    public void setSnapshotDataThresholdPercentage(int snapshotDataThresholdPercentage){
+        this.snapshotDataThresholdPercentage = snapshotDataThresholdPercentage;
+    }
+
+    public void setSnaphotChunkSize(int snaphotChunkSize) {
+        this.snaphotChunkSize = snaphotChunkSize;
+    }
+
     public void setJournalRecoveryLogBatchSize(int journalRecoveryLogBatchSize) {
         this.journalRecoveryLogBatchSize = journalRecoveryLogBatchSize;
     }
 
+    public void setIsolatedLeaderCheckInterval(FiniteDuration isolatedLeaderCheckInterval) {
+        this.isolatedLeaderCheckInterval = isolatedLeaderCheckInterval.toMillis();
+    }
+
+    public void setElectionTimeoutFactor(long electionTimeoutFactor){
+        this.electionTimeoutFactor = electionTimeoutFactor;
+        electionTimeOutInterval = null;
+    }
+
+    public void setCustomRaftPolicyImplementationClass(String customRaftPolicyImplementationClass){
+        this.customRaftPolicyImplementationClass = customRaftPolicyImplementationClass;
+    }
+
     @Override
     public long getSnapshotBatchCount() {
         return snapshotBatchCount;
     }
 
+    @Override
+    public int getSnapshotDataThresholdPercentage() {
+        return snapshotDataThresholdPercentage;
+    }
+
+
     @Override
     public FiniteDuration getHeartBeatInterval() {
         return heartBeatInterval;
@@ -69,8 +117,11 @@ public class DefaultConfigParamsImpl implements ConfigParams {
 
     @Override
     public FiniteDuration getElectionTimeOutInterval() {
-        // returns 2 times the heart beat interval
-        return getHeartBeatInterval().$times(2);
+        if(electionTimeOutInterval == null) {
+            electionTimeOutInterval = getHeartBeatInterval().$times(electionTimeoutFactor);
+        }
+
+        return electionTimeOutInterval;
     }
 
     @Override
@@ -80,11 +131,50 @@ public class DefaultConfigParamsImpl implements ConfigParams {
 
     @Override
     public int getSnapshotChunkSize() {
-        return SNAPSHOT_CHUNK_SIZE;
+        return snaphotChunkSize;
     }
 
     @Override
     public int getJournalRecoveryLogBatchSize() {
         return journalRecoveryLogBatchSize;
     }
+
+    @Override
+    public long getIsolatedCheckIntervalInMillis() {
+        return isolatedLeaderCheckInterval;
+    }
+
+    @Override
+    public long getElectionTimeoutFactor() {
+        return electionTimeoutFactor;
+    }
+
+    @Override
+    public RaftPolicy getRaftPolicy() {
+        return policySupplier.get();
+    }
+
+    private class PolicySupplier implements Supplier<RaftPolicy>{
+        @Override
+        public RaftPolicy get() {
+            if(Strings.isNullOrEmpty(DefaultConfigParamsImpl.this.customRaftPolicyImplementationClass)){
+                LOG.debug("No custom RaftPolicy specified. Using DefaultRaftPolicy");
+                return DefaultRaftPolicy.INSTANCE;
+            }
+            try {
+                String className = DefaultConfigParamsImpl.this.customRaftPolicyImplementationClass;
+                LOG.info("Trying to use custom RaftPolicy {}", className);
+                Class c = Class.forName(className);
+                RaftPolicy obj = (RaftPolicy)c.newInstance();
+                return obj;
+            } catch (Exception e) {
+                if(LOG.isDebugEnabled()) {
+                    LOG.error("Could not create custom raft policy, will stick with default", e);
+                } else {
+                    LOG.error("Could not create custom raft policy, will stick with default : cause = {}", e.getMessage());
+                }
+            }
+            return DefaultRaftPolicy.INSTANCE;
+        }
+    }
 }