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.Stopwatch;
16 import com.google.common.cache.Cache;
17 import com.google.common.cache.CacheBuilder;
18 import java.text.SimpleDateFormat;
19 import java.util.Date;
20 import java.util.List;
22 import java.util.concurrent.TimeUnit;
23 import java.util.concurrent.atomic.AtomicLong;
24 import org.opendaylight.controller.cluster.datastore.Shard;
25 import org.opendaylight.controller.cluster.raft.base.messages.InitiateCaptureSnapshot;
26 import org.opendaylight.controller.cluster.raft.client.messages.FollowerInfo;
27 import org.opendaylight.controller.cluster.raft.client.messages.GetOnDemandRaftState;
28 import org.opendaylight.controller.cluster.raft.client.messages.OnDemandRaftState;
29 import org.opendaylight.controller.md.sal.common.util.jmx.AbstractMXBean;
30 import scala.concurrent.Await;
33 * Maintains statistics for a shard.
35 * @author Basheeruddin syedbahm@cisco.com
37 public class ShardStats extends AbstractMXBean implements ShardStatsMXBean {
38 public static String JMX_CATEGORY_SHARD = "Shards";
40 private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
42 private static final Cache<String, OnDemandRaftState> ONDEMAND_RAFT_STATE_CACHE =
43 CacheBuilder.newBuilder().expireAfterWrite(2, TimeUnit.SECONDS).build();
45 private long committedTransactionsCount;
47 private long readOnlyTransactionCount;
49 private long writeOnlyTransactionCount;
51 private long readWriteTransactionCount;
53 private long lastCommittedTransactionTime;
55 private long failedTransactionsCount;
57 private final AtomicLong failedReadTransactionsCount = new AtomicLong();
59 private long abortTransactionsCount;
61 private boolean followerInitialSyncStatus = false;
65 private String statRetrievalError;
67 private String statRetrievalTime;
69 private long leadershipChangeCount;
71 private long lastLeadershipChangeTime;
73 public ShardStats(final String shardName, final String mxBeanType) {
74 super(shardName, mxBeanType, JMX_CATEGORY_SHARD);
77 public void setShard(Shard 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 toStringMap(getOnDemandRaftState().getPeerVotingStates());
211 public boolean isSnapshotCaptureInitiated() {
212 return getOnDemandRaftState().isSnapshotCaptureInitiated();
216 public String getLastCommittedTransactionTime() {
217 return DATE_FORMAT.format(new Date(lastCommittedTransactionTime));
221 public long getFailedTransactionsCount() {
222 return failedTransactionsCount;
226 public long getFailedReadTransactionsCount() {
227 return failedReadTransactionsCount.get();
231 public long getAbortTransactionsCount() {
232 return abortTransactionsCount;
235 public long incrementCommittedTransactionCount() {
236 return ++committedTransactionsCount;
239 public long incrementReadOnlyTransactionCount() {
240 return ++readOnlyTransactionCount;
243 public long incrementWriteOnlyTransactionCount() {
244 return ++writeOnlyTransactionCount;
247 public long incrementReadWriteTransactionCount() {
248 return ++readWriteTransactionCount;
251 public long incrementFailedTransactionsCount() {
252 return ++failedTransactionsCount;
255 public long incrementFailedReadTransactionsCount() {
256 return failedReadTransactionsCount.incrementAndGet();
259 public long incrementAbortTransactionsCount() {
260 return ++abortTransactionsCount;
263 public void setLastCommittedTransactionTime(final long lastCommittedTransactionTime) {
264 this.lastCommittedTransactionTime = lastCommittedTransactionTime;
268 public long getInMemoryJournalDataSize() {
269 return getOnDemandRaftState().getInMemoryJournalDataSize();
273 public long getInMemoryJournalLogSize() {
274 return getOnDemandRaftState().getInMemoryJournalLogSize();
278 * Resets the counters related to transactions.
281 public void resetTransactionCounters() {
282 committedTransactionsCount = 0;
284 readOnlyTransactionCount = 0;
286 writeOnlyTransactionCount = 0;
288 readWriteTransactionCount = 0;
290 lastCommittedTransactionTime = 0;
292 failedTransactionsCount = 0;
294 failedReadTransactionsCount.set(0);
296 abortTransactionsCount = 0;
300 public void setFollowerInitialSyncStatus(boolean followerInitialSyncStatus) {
301 this.followerInitialSyncStatus = followerInitialSyncStatus;
305 public boolean getFollowerInitialSyncStatus() {
306 return followerInitialSyncStatus;
310 public List<FollowerInfo> getFollowerInfo() {
311 return getOnDemandRaftState().getFollowerInfoList();
315 public String getPeerAddresses() {
316 return toStringMap(getOnDemandRaftState().getPeerAddresses());
319 private static String toStringMap(Map<?, ?> map) {
320 return Joiner.on(", ").withKeyValueSeparator(": ").join(map);
324 public String getStatRetrievalTime() {
325 getOnDemandRaftState();
326 return statRetrievalTime;
330 public String getStatRetrievalError() {
331 getOnDemandRaftState();
332 return statRetrievalError;
336 public long getLeadershipChangeCount() {
337 return leadershipChangeCount;
340 public void incrementLeadershipChangeCount() {
341 leadershipChangeCount++;
342 lastLeadershipChangeTime = System.currentTimeMillis();
346 public String getLastLeadershipChangeTime() {
347 return DATE_FORMAT.format(new Date(lastLeadershipChangeTime));
351 public int getPendingTxCommitQueueSize() {
352 return shard.getPendingTxCommitQueueSize();
356 public int getTxCohortCacheSize() {
357 return shard.getCohortCacheSize();
361 public void captureSnapshot() {
363 shard.getSelf().tell(new InitiateCaptureSnapshot(), ActorRef.noSender());