2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.controller.cluster.datastore.jmx.mbeans.shard;
11 import akka.actor.ActorRef;
12 import akka.pattern.Patterns;
13 import akka.util.Timeout;
14 import com.google.common.base.Joiner;
15 import com.google.common.base.Joiner.MapJoiner;
16 import com.google.common.base.Stopwatch;
17 import com.google.common.cache.Cache;
18 import com.google.common.cache.CacheBuilder;
19 import java.text.SimpleDateFormat;
20 import java.util.Date;
21 import java.util.List;
22 import java.util.concurrent.TimeUnit;
23 import java.util.concurrent.atomic.AtomicLong;
24 import javax.annotation.Nullable;
25 import org.opendaylight.controller.cluster.datastore.Shard;
26 import org.opendaylight.controller.cluster.raft.base.messages.InitiateCaptureSnapshot;
27 import org.opendaylight.controller.cluster.raft.client.messages.FollowerInfo;
28 import org.opendaylight.controller.cluster.raft.client.messages.GetOnDemandRaftState;
29 import org.opendaylight.controller.cluster.raft.client.messages.OnDemandRaftState;
30 import org.opendaylight.controller.md.sal.common.util.jmx.AbstractMXBean;
31 import scala.concurrent.Await;
34 * Maintains statistics for a shard.
36 * @author Basheeruddin syedbahm@cisco.com
38 public class ShardStats extends AbstractMXBean implements ShardStatsMXBean {
39 public static final String JMX_CATEGORY_SHARD = "Shards";
41 private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
43 private static final Cache<String, OnDemandRaftState> ONDEMAND_RAFT_STATE_CACHE =
44 CacheBuilder.newBuilder().expireAfterWrite(2, TimeUnit.SECONDS).build();
46 private static final MapJoiner MAP_JOINER = Joiner.on(", ").withKeyValueSeparator(": ");
48 private long committedTransactionsCount;
50 private long readOnlyTransactionCount;
52 private long writeOnlyTransactionCount;
54 private long readWriteTransactionCount;
56 private long lastCommittedTransactionTime;
58 private long failedTransactionsCount;
60 private final AtomicLong failedReadTransactionsCount = new AtomicLong();
62 private long abortTransactionsCount;
64 private boolean followerInitialSyncStatus = false;
66 private final Shard shard;
68 private String statRetrievalError;
70 private String statRetrievalTime;
72 private long leadershipChangeCount;
74 private long lastLeadershipChangeTime;
76 public ShardStats(final String shardName, final String mxBeanType, @Nullable final Shard shard) {
77 super(shardName, mxBeanType, JMX_CATEGORY_SHARD);
81 @SuppressWarnings("checkstyle:IllegalCatch")
82 private OnDemandRaftState getOnDemandRaftState() {
83 String name = getShardName();
84 OnDemandRaftState state = ONDEMAND_RAFT_STATE_CACHE.getIfPresent(name);
86 statRetrievalError = null;
87 statRetrievalTime = null;
90 Timeout timeout = new Timeout(10, TimeUnit.SECONDS);
92 Stopwatch timer = Stopwatch.createStarted();
94 state = (OnDemandRaftState) Await.result(Patterns.ask(shard.getSelf(),
95 GetOnDemandRaftState.INSTANCE, timeout), timeout.duration());
97 statRetrievalTime = timer.stop().toString();
98 ONDEMAND_RAFT_STATE_CACHE.put(name, state);
99 } catch (Exception e) {
100 statRetrievalError = e.toString();
104 state = state != null ? state : OnDemandRaftState.builder().build();
111 public String getShardName() {
112 return getMBeanName();
116 public long getCommittedTransactionsCount() {
117 return committedTransactionsCount;
121 public String getLeader() {
122 return getOnDemandRaftState().getLeader();
126 public String getRaftState() {
127 return getOnDemandRaftState().getRaftState();
131 public long getReadOnlyTransactionCount() {
132 return readOnlyTransactionCount;
136 public long getWriteOnlyTransactionCount() {
137 return writeOnlyTransactionCount;
141 public long getReadWriteTransactionCount() {
142 return readWriteTransactionCount;
146 public long getLastLogIndex() {
147 return getOnDemandRaftState().getLastLogIndex();
151 public long getLastLogTerm() {
152 return getOnDemandRaftState().getLastLogTerm();
156 public long getCurrentTerm() {
157 return getOnDemandRaftState().getCurrentTerm();
161 public long getCommitIndex() {
162 return getOnDemandRaftState().getCommitIndex();
166 public long getLastApplied() {
167 return getOnDemandRaftState().getLastApplied();
171 public long getLastIndex() {
172 return getOnDemandRaftState().getLastIndex();
176 public long getLastTerm() {
177 return getOnDemandRaftState().getLastTerm();
181 public long getSnapshotIndex() {
182 return getOnDemandRaftState().getSnapshotIndex();
186 public long getSnapshotTerm() {
187 return getOnDemandRaftState().getSnapshotTerm();
191 public long getReplicatedToAllIndex() {
192 return getOnDemandRaftState().getReplicatedToAllIndex();
196 public String getVotedFor() {
197 return getOnDemandRaftState().getVotedFor();
201 public boolean isVoting() {
202 return getOnDemandRaftState().isVoting();
206 public String getPeerVotingStates() {
207 return MAP_JOINER.join(getOnDemandRaftState().getPeerVotingStates());
211 public boolean isSnapshotCaptureInitiated() {
212 return getOnDemandRaftState().isSnapshotCaptureInitiated();
216 public String getLastCommittedTransactionTime() {
217 synchronized (DATE_FORMAT) {
218 return DATE_FORMAT.format(new Date(lastCommittedTransactionTime));
223 public long getFailedTransactionsCount() {
224 return failedTransactionsCount;
228 public long getFailedReadTransactionsCount() {
229 return failedReadTransactionsCount.get();
233 public long getAbortTransactionsCount() {
234 return abortTransactionsCount;
237 public long incrementCommittedTransactionCount() {
238 return ++committedTransactionsCount;
241 public long incrementReadOnlyTransactionCount() {
242 return ++readOnlyTransactionCount;
245 public long incrementWriteOnlyTransactionCount() {
246 return ++writeOnlyTransactionCount;
249 public long incrementReadWriteTransactionCount() {
250 return ++readWriteTransactionCount;
253 public long incrementFailedTransactionsCount() {
254 return ++failedTransactionsCount;
257 public long incrementFailedReadTransactionsCount() {
258 return failedReadTransactionsCount.incrementAndGet();
261 public long incrementAbortTransactionsCount() {
262 return ++abortTransactionsCount;
265 public void setLastCommittedTransactionTime(final long lastCommittedTransactionTime) {
266 this.lastCommittedTransactionTime = lastCommittedTransactionTime;
270 public long getInMemoryJournalDataSize() {
271 return getOnDemandRaftState().getInMemoryJournalDataSize();
275 public long getInMemoryJournalLogSize() {
276 return getOnDemandRaftState().getInMemoryJournalLogSize();
280 * Resets the counters related to transactions.
283 public void resetTransactionCounters() {
284 committedTransactionsCount = 0;
286 readOnlyTransactionCount = 0;
288 writeOnlyTransactionCount = 0;
290 readWriteTransactionCount = 0;
292 lastCommittedTransactionTime = 0;
294 failedTransactionsCount = 0;
296 failedReadTransactionsCount.set(0);
298 abortTransactionsCount = 0;
302 public void setFollowerInitialSyncStatus(boolean followerInitialSyncStatus) {
303 this.followerInitialSyncStatus = followerInitialSyncStatus;
307 public boolean getFollowerInitialSyncStatus() {
308 return followerInitialSyncStatus;
312 public List<FollowerInfo> getFollowerInfo() {
313 return getOnDemandRaftState().getFollowerInfoList();
317 public String getPeerAddresses() {
318 return MAP_JOINER.join(getOnDemandRaftState().getPeerAddresses());
322 public String getStatRetrievalTime() {
323 getOnDemandRaftState();
324 return statRetrievalTime;
328 public String getStatRetrievalError() {
329 getOnDemandRaftState();
330 return statRetrievalError;
334 public long getLeadershipChangeCount() {
335 return leadershipChangeCount;
338 public void incrementLeadershipChangeCount() {
339 leadershipChangeCount++;
340 lastLeadershipChangeTime = System.currentTimeMillis();
344 public String getLastLeadershipChangeTime() {
345 synchronized (DATE_FORMAT) {
346 return DATE_FORMAT.format(new Date(lastLeadershipChangeTime));
351 public int getPendingTxCommitQueueSize() {
352 return shard != null ? shard.getPendingTxCommitQueueSize() : -1;
356 public int getTxCohortCacheSize() {
357 return shard != null ? shard.getCohortCacheSize() : -1;
361 public void captureSnapshot() {
363 shard.getSelf().tell(new InitiateCaptureSnapshot(), ActorRef.noSender());