Implement cluster admin RPCs to change member voting states
[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / jmx / mbeans / shard / ShardStats.java
index 4fc2ed2d0691c400ce04eb04482e0794bfef217b..b01eb099a5707975515c00d7c661725ff8f16400 100644 (file)
@@ -8,17 +8,26 @@
 
 package org.opendaylight.controller.cluster.datastore.jmx.mbeans.shard;
 
+import akka.actor.ActorRef;
+import akka.pattern.Patterns;
+import akka.util.Timeout;
+import com.google.common.base.Joiner;
+import com.google.common.base.Stopwatch;
+import com.google.common.cache.Cache;
+import com.google.common.cache.CacheBuilder;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.List;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicLong;
+import org.opendaylight.controller.cluster.datastore.Shard;
+import org.opendaylight.controller.cluster.raft.base.messages.InitiateCaptureSnapshot;
+import org.opendaylight.controller.cluster.raft.client.messages.FollowerInfo;
+import org.opendaylight.controller.cluster.raft.client.messages.GetOnDemandRaftState;
+import org.opendaylight.controller.cluster.raft.client.messages.OnDemandRaftState;
 import org.opendaylight.controller.md.sal.common.util.jmx.AbstractMXBean;
-import org.opendaylight.controller.md.sal.common.util.jmx.QueuedNotificationManagerMXBeanImpl;
-import org.opendaylight.controller.md.sal.common.util.jmx.ThreadExecutorStats;
-import org.opendaylight.controller.md.sal.common.util.jmx.ThreadExecutorStatsMXBeanImpl;
-import org.opendaylight.controller.md.sal.dom.store.impl.InMemoryDOMDataStore;
-import org.opendaylight.yangtools.util.concurrent.ListenerNotificationQueueStats;
-import org.opendaylight.yangtools.util.concurrent.QueuedNotificationManager;
+import scala.concurrent.Await;
 
 /**
  * Maintains statistics for a shard.
@@ -28,54 +37,73 @@ import org.opendaylight.yangtools.util.concurrent.QueuedNotificationManager;
 public class ShardStats extends AbstractMXBean implements ShardStatsMXBean {
     public static String JMX_CATEGORY_SHARD = "Shards";
 
-    private final AtomicLong committedTransactionsCount = new AtomicLong();
+    private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
 
-    private final AtomicLong readOnlyTransactionCount = new AtomicLong();
+    private static final Cache<String, OnDemandRaftState> onDemandRaftStateCache =
+            CacheBuilder.newBuilder().expireAfterWrite(2, TimeUnit.SECONDS).build();
 
-    private final AtomicLong writeOnlyTransactionCount = new AtomicLong();
+    private long committedTransactionsCount;
 
-    private final AtomicLong readWriteTransactionCount = new AtomicLong();
+    private long readOnlyTransactionCount;
 
-    private String leader;
+    private long writeOnlyTransactionCount;
 
-    private String raftState;
+    private long readWriteTransactionCount;
 
-    private volatile long lastLogTerm = -1L;
+    private long lastCommittedTransactionTime;
 
-    private volatile long lastLogIndex = -1L;
+    private long failedTransactionsCount;
 
-    private volatile long currentTerm = -1L;
-
-    private volatile long commitIndex = -1L;
-
-    private volatile long lastApplied = -1L;
-
-    private volatile long lastCommittedTransactionTime;
+    private final AtomicLong failedReadTransactionsCount = new AtomicLong();
 
-    private final AtomicLong failedTransactionsCount = new AtomicLong();
+    private long abortTransactionsCount;
 
-    private final AtomicLong failedReadTransactionsCount = new AtomicLong();
+    private boolean followerInitialSyncStatus = false;
 
-    private final AtomicLong abortTransactionsCount = new AtomicLong();
+    private Shard shard;
 
-    private ThreadExecutorStatsMXBeanImpl notificationExecutorStatsBean;
+    private String statRetrievalError;
 
-    private QueuedNotificationManagerMXBeanImpl notificationManagerStatsBean;
+    private String statRetrievalTime;
 
-    private volatile long dataSize = 0;
+    private long leadershipChangeCount;
 
-    private final SimpleDateFormat sdf =
-        new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
+    private long lastLeadershipChangeTime;
 
     public ShardStats(final String shardName, final String mxBeanType) {
         super(shardName, mxBeanType, JMX_CATEGORY_SHARD);
     }
 
-    public void setNotificationManager(final QueuedNotificationManager<?, ?> manager) {
-        this.notificationManagerStatsBean = new QueuedNotificationManagerMXBeanImpl(manager,
-                "notification-manager", getMBeanType(), getMBeanCategory());
+    public void setShard(Shard shard) {
+        this.shard = shard;
+    }
+
+    private OnDemandRaftState getOnDemandRaftState() {
+        String name = getShardName();
+        OnDemandRaftState state = onDemandRaftStateCache.getIfPresent(name);
+        if(state == null) {
+            statRetrievalError = null;
+            statRetrievalTime = null;
+
+            if(shard != null) {
+                Timeout timeout = new Timeout(10, TimeUnit.SECONDS);
+                try {
+                    Stopwatch timer = Stopwatch.createStarted();
+
+                    state = (OnDemandRaftState) Await.result(Patterns.ask(shard.getSelf(),
+                            GetOnDemandRaftState.INSTANCE, timeout), timeout.duration());
+
+                    statRetrievalTime = timer.stop().toString();
+                    onDemandRaftStateCache.put(name, state);
+                } catch (Exception e) {
+                    statRetrievalError = e.toString();
+                }
+            }
 
-        this.notificationExecutorStatsBean = ThreadExecutorStatsMXBeanImpl.create(manager.getExecutor());
+            state = state != null ? state : OnDemandRaftState.builder().build();
+        }
+
+        return state;
     }
 
     @Override
@@ -85,68 +113,111 @@ public class ShardStats extends AbstractMXBean implements ShardStatsMXBean {
 
     @Override
     public long getCommittedTransactionsCount() {
-        return committedTransactionsCount.get();
+        return committedTransactionsCount;
     }
 
     @Override
     public String getLeader() {
-        return leader;
+        return getOnDemandRaftState().getLeader();
     }
 
     @Override
     public String getRaftState() {
-        return raftState;
+        return getOnDemandRaftState().getRaftState();
     }
 
     @Override
     public long getReadOnlyTransactionCount() {
-        return readOnlyTransactionCount.get();
+        return readOnlyTransactionCount;
     }
 
     @Override
     public long getWriteOnlyTransactionCount() {
-        return writeOnlyTransactionCount.get();
+        return writeOnlyTransactionCount;
     }
 
     @Override
     public long getReadWriteTransactionCount() {
-        return readWriteTransactionCount.get();
+        return readWriteTransactionCount;
     }
 
     @Override
     public long getLastLogIndex() {
-        return lastLogIndex;
+        return getOnDemandRaftState().getLastLogIndex();
     }
 
     @Override
     public long getLastLogTerm() {
-        return lastLogTerm;
+        return getOnDemandRaftState().getLastLogTerm();
     }
 
     @Override
     public long getCurrentTerm() {
-        return currentTerm;
+        return getOnDemandRaftState().getCurrentTerm();
     }
 
     @Override
     public long getCommitIndex() {
-        return commitIndex;
+        return getOnDemandRaftState().getCommitIndex();
     }
 
     @Override
     public long getLastApplied() {
-        return lastApplied;
+        return getOnDemandRaftState().getLastApplied();
     }
 
     @Override
-    public String getLastCommittedTransactionTime() {
+    public long getLastIndex() {
+        return getOnDemandRaftState().getLastIndex();
+    }
+
+    @Override
+    public long getLastTerm() {
+        return getOnDemandRaftState().getLastTerm();
+    }
+
+    @Override
+    public long getSnapshotIndex() {
+        return getOnDemandRaftState().getSnapshotIndex();
+    }
+
+    @Override
+    public long getSnapshotTerm() {
+        return getOnDemandRaftState().getSnapshotTerm();
+    }
+
+    @Override
+    public long getReplicatedToAllIndex() {
+        return getOnDemandRaftState().getReplicatedToAllIndex();
+    }
+
+    @Override
+    public String getVotedFor() {
+        return getOnDemandRaftState().getVotedFor();
+    }
+    @Override
+    public boolean isVoting() {
+        return getOnDemandRaftState().isVoting();
+    }
 
-        return sdf.format(new Date(lastCommittedTransactionTime));
+    @Override
+    public String getPeerVotingStates() {
+        return toStringMap(getOnDemandRaftState().getPeerVotingStates());
+    }
+
+    @Override
+    public boolean isSnapshotCaptureInitiated() {
+        return getOnDemandRaftState().isSnapshotCaptureInitiated();
+    }
+
+    @Override
+    public String getLastCommittedTransactionTime() {
+        return DATE_FORMAT.format(new Date(lastCommittedTransactionTime));
     }
 
     @Override
     public long getFailedTransactionsCount() {
-        return failedTransactionsCount.get();
+        return failedTransactionsCount;
     }
 
     @Override
@@ -156,27 +227,27 @@ public class ShardStats extends AbstractMXBean implements ShardStatsMXBean {
 
     @Override
     public long getAbortTransactionsCount() {
-        return abortTransactionsCount.get();
+        return abortTransactionsCount;
     }
 
     public long incrementCommittedTransactionCount() {
-        return committedTransactionsCount.incrementAndGet();
+        return ++committedTransactionsCount;
     }
 
     public long incrementReadOnlyTransactionCount() {
-        return readOnlyTransactionCount.incrementAndGet();
+        return ++readOnlyTransactionCount;
     }
 
     public long incrementWriteOnlyTransactionCount() {
-        return writeOnlyTransactionCount.incrementAndGet();
+        return ++writeOnlyTransactionCount;
     }
 
     public long incrementReadWriteTransactionCount() {
-        return readWriteTransactionCount.incrementAndGet();
+        return ++readWriteTransactionCount;
     }
 
     public long incrementFailedTransactionsCount() {
-        return failedTransactionsCount.incrementAndGet();
+        return ++failedTransactionsCount;
     }
 
     public long incrementFailedReadTransactionsCount() {
@@ -185,95 +256,110 @@ public class ShardStats extends AbstractMXBean implements ShardStatsMXBean {
 
     public long incrementAbortTransactionsCount ()
     {
-        return abortTransactionsCount.incrementAndGet();
+        return ++abortTransactionsCount;
     }
 
-    public void setLeader(final String leader) {
-        this.leader = leader;
+    public void setLastCommittedTransactionTime(final long lastCommittedTransactionTime) {
+        this.lastCommittedTransactionTime = lastCommittedTransactionTime;
     }
 
-    public void setRaftState(final String raftState) {
-        this.raftState = raftState;
+    @Override
+    public long getInMemoryJournalDataSize(){
+        return getOnDemandRaftState().getInMemoryJournalDataSize();
     }
 
-    public void setLastLogTerm(final long lastLogTerm) {
-        this.lastLogTerm = lastLogTerm;
+    @Override
+    public long getInMemoryJournalLogSize() {
+        return getOnDemandRaftState().getInMemoryJournalLogSize();
     }
 
-    public void setLastLogIndex(final long lastLogIndex) {
-        this.lastLogIndex = lastLogIndex;
-    }
+    /**
+     * resets the counters related to transactions
+     */
+    @Override
+    public void resetTransactionCounters(){
+        committedTransactionsCount = 0;
 
-    public void setCurrentTerm(final long currentTerm) {
-        this.currentTerm = currentTerm;
-    }
+        readOnlyTransactionCount = 0;
 
-    public void setCommitIndex(final long commitIndex) {
-        this.commitIndex = commitIndex;
-    }
+        writeOnlyTransactionCount = 0;
 
-    public void setLastApplied(final long lastApplied) {
-        this.lastApplied = lastApplied;
-    }
+        readWriteTransactionCount = 0;
+
+        lastCommittedTransactionTime = 0;
+
+        failedTransactionsCount = 0;
+
+        failedReadTransactionsCount.set(0);
+
+        abortTransactionsCount = 0;
 
-    public void setLastCommittedTransactionTime(final long lastCommittedTransactionTime) {
-        this.lastCommittedTransactionTime = lastCommittedTransactionTime;
     }
 
-    public void setDataSize(long dataSize){
-        this.dataSize = dataSize;
+    public void setFollowerInitialSyncStatus(boolean followerInitialSyncStatus) {
+        this.followerInitialSyncStatus = followerInitialSyncStatus;
     }
 
     @Override
-    public long getDataSize(){
-        return dataSize;
+    public boolean getFollowerInitialSyncStatus() {
+        return followerInitialSyncStatus;
     }
 
     @Override
-    public ThreadExecutorStats getDataStoreExecutorStats() {
-        // FIXME: this particular thing does not work, as it really is DS-specific
-        return null;
+    public List<FollowerInfo> getFollowerInfo() {
+        return getOnDemandRaftState().getFollowerInfoList();
     }
 
     @Override
-    public ThreadExecutorStats getNotificationMgrExecutorStats() {
-        return notificationExecutorStatsBean.toThreadExecutorStats();
+    public String getPeerAddresses() {
+        return toStringMap(getOnDemandRaftState().getPeerAddresses());
     }
 
-    @Override
-    public List<ListenerNotificationQueueStats> getCurrentNotificationMgrListenerQueueStats() {
-        return notificationManagerStatsBean.getCurrentListenerQueueStats();
+    private static String toStringMap(Map<?, ?> map) {
+        return Joiner.on(", ").withKeyValueSeparator(": ").join(map);
     }
 
     @Override
-    public int getMaxNotificationMgrListenerQueueSize() {
-        return notificationManagerStatsBean.getMaxListenerQueueSize();
+    public String getStatRetrievalTime() {
+        getOnDemandRaftState();
+        return statRetrievalTime;
     }
 
-    /**
-     * resets the counters related to transactions
-     */
     @Override
-    public void resetTransactionCounters(){
-        committedTransactionsCount.set(0);
-
-        readOnlyTransactionCount.set(0);
-
-        writeOnlyTransactionCount.set(0);
-
-        readWriteTransactionCount.set(0);
+    public String getStatRetrievalError() {
+        getOnDemandRaftState();
+        return statRetrievalError;
+    }
 
-        lastCommittedTransactionTime = 0;
+    @Override
+    public long getLeadershipChangeCount() {
+        return leadershipChangeCount;
+    }
 
-        failedTransactionsCount.set(0);
+    public void incrementLeadershipChangeCount() {
+        leadershipChangeCount++;
+        lastLeadershipChangeTime = System.currentTimeMillis();
+    }
 
-        failedReadTransactionsCount.set(0);
+    @Override
+    public String getLastLeadershipChangeTime() {
+        return DATE_FORMAT.format(new Date(lastLeadershipChangeTime));
+    }
 
-        abortTransactionsCount.set(0);
+    @Override
+    public int getPendingTxCommitQueueSize() {
+        return shard.getPendingTxCommitQueueSize();
+    }
 
+    @Override
+    public int getTxCohortCacheSize() {
+        return shard.getCohortCacheSize();
     }
 
-    public void setDataStore(final InMemoryDOMDataStore store) {
-        setNotificationManager(store.getDataChangeListenerNotificationManager());
+    @Override
+    public void captureSnapshot() {
+        if(shard != null) {
+            shard.getSelf().tell(new InitiateCaptureSnapshot(), ActorRef.noSender());
+        }
     }
 }