mirror of https://github.com/apache/lucene.git
SOLR-5749: A new Overseer status collection API exposes overseer queue sizes, timing statistics, success and error counts and last N failures per operation
git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1580463 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Shalin Shekhar Mangar
parent
3ecd526643
commit
c263c714ce
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@ -143,6 +143,9 @@ New Features
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improve logging and force refresh cluster state every 15 seconds.
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(Timothy Potter via shalin)
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* SOLR-5749: A new Overseer status collection API exposes overseer queue sizes, timing
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statistics, success and error counts and last N failures per operation. (shalin)
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Bug Fixes
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----------------------
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@ -26,6 +26,7 @@ import org.apache.solr.common.SolrException;
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import org.apache.solr.common.SolrException.ErrorCode;
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import org.apache.solr.common.cloud.SolrZkClient;
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import org.apache.solr.common.cloud.ZkCmdExecutor;
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import org.apache.solr.util.stats.TimerContext;
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import org.apache.zookeeper.CreateMode;
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import org.apache.zookeeper.KeeperException;
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import org.apache.zookeeper.WatchedEvent;
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@ -52,10 +53,16 @@ public class DistributedQueue {
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private final String prefix = "qn-";
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private final String response_prefix = "qnr-" ;
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private final Overseer.Stats stats;
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public DistributedQueue(SolrZkClient zookeeper, String dir, List<ACL> acl) {
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this(zookeeper, dir, acl, new Overseer.Stats());
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}
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public DistributedQueue(SolrZkClient zookeeper, String dir, List<ACL> acl, Overseer.Stats stats) {
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this.dir = dir;
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ZkCmdExecutor cmdExecutor = new ZkCmdExecutor(zookeeper.getZkClientTimeout());
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try {
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cmdExecutor.ensureExists(dir, zookeeper);
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@ -65,12 +72,12 @@ public class DistributedQueue {
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Thread.currentThread().interrupt();
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throw new SolrException(ErrorCode.SERVER_ERROR, e);
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}
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if (acl != null) {
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this.acl = acl;
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}
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this.zookeeper = zookeeper;
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this.stats = stats;
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}
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/**
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@ -155,25 +162,30 @@ public class DistributedQueue {
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InterruptedException {
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TreeMap<Long,String> orderedChildren;
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// Same as for element. Should refactor this.
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while (true) {
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try {
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orderedChildren = orderedChildren(null);
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} catch (KeeperException.NoNodeException e) {
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throw new NoSuchElementException();
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}
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if (orderedChildren.size() == 0) throw new NoSuchElementException();
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for (String headNode : orderedChildren.values()) {
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String path = dir + "/" + headNode;
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TimerContext time = stats.time(dir + "_remove");
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try {
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while (true) {
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try {
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byte[] data = zookeeper.getData(path, null, null, true);
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zookeeper.delete(path, -1, true);
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return data;
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orderedChildren = orderedChildren(null);
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} catch (KeeperException.NoNodeException e) {
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// Another client deleted the node first.
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throw new NoSuchElementException();
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}
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if (orderedChildren.size() == 0) throw new NoSuchElementException();
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for (String headNode : orderedChildren.values()) {
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String path = dir + "/" + headNode;
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try {
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byte[] data = zookeeper.getData(path, null, null, true);
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zookeeper.delete(path, -1, true);
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return data;
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} catch (KeeperException.NoNodeException e) {
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// Another client deleted the node first.
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}
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}
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}
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} finally {
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time.stop();
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}
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}
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@ -183,15 +195,20 @@ public class DistributedQueue {
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*/
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public byte[] remove(QueueEvent event) throws KeeperException,
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InterruptedException {
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String path = event.getId();
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String responsePath = dir + "/" + response_prefix
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+ path.substring(path.lastIndexOf("-") + 1);
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if (zookeeper.exists(responsePath, true)) {
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zookeeper.setData(responsePath, event.getBytes(), true);
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TimerContext time = stats.time(dir + "_remove_event");
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try {
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String path = event.getId();
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String responsePath = dir + "/" + response_prefix
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+ path.substring(path.lastIndexOf("-") + 1);
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if (zookeeper.exists(responsePath, true)) {
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zookeeper.setData(responsePath, event.getBytes(), true);
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}
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byte[] data = zookeeper.getData(path, null, null, true);
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zookeeper.delete(path, -1, true);
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return data;
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} finally {
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time.stop();
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}
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byte[] data = zookeeper.getData(path, null, null, true);
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zookeeper.delete(path, -1, true);
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return data;
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}
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@ -235,29 +252,34 @@ public class DistributedQueue {
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public byte[] take() throws KeeperException, InterruptedException {
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TreeMap<Long,String> orderedChildren;
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// Same as for element. Should refactor this.
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while (true) {
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LatchChildWatcher childWatcher = new LatchChildWatcher();
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try {
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orderedChildren = orderedChildren(childWatcher);
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} catch (KeeperException.NoNodeException e) {
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zookeeper.create(dir, new byte[0], acl, CreateMode.PERSISTENT, true);
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continue;
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}
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if (orderedChildren.size() == 0) {
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childWatcher.await(DEFAULT_TIMEOUT);
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continue;
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}
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for (String headNode : orderedChildren.values()) {
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String path = dir + "/" + headNode;
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TimerContext timer = stats.time(dir + "_take");
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try {
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while (true) {
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LatchChildWatcher childWatcher = new LatchChildWatcher();
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try {
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byte[] data = zookeeper.getData(path, null, null, true);
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zookeeper.delete(path, -1, true);
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return data;
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orderedChildren = orderedChildren(childWatcher);
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} catch (KeeperException.NoNodeException e) {
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// Another client deleted the node first.
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zookeeper.create(dir, new byte[0], acl, CreateMode.PERSISTENT, true);
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continue;
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}
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if (orderedChildren.size() == 0) {
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childWatcher.await(DEFAULT_TIMEOUT);
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continue;
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}
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for (String headNode : orderedChildren.values()) {
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String path = dir + "/" + headNode;
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try {
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byte[] data = zookeeper.getData(path, null, null, true);
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zookeeper.delete(path, -1, true);
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return data;
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} catch (KeeperException.NoNodeException e) {
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// Another client deleted the node first.
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}
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}
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}
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} finally {
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timer.stop();
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}
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}
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@ -268,8 +290,13 @@ public class DistributedQueue {
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*/
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public boolean offer(byte[] data) throws KeeperException,
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InterruptedException {
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return createData(dir + "/" + prefix, data,
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CreateMode.PERSISTENT_SEQUENTIAL) != null;
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TimerContext time = stats.time(dir + "_offer");
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try {
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return createData(dir + "/" + prefix, data,
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CreateMode.PERSISTENT_SEQUENTIAL) != null;
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} finally {
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time.stop();
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}
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}
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/**
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@ -298,21 +325,26 @@ public class DistributedQueue {
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*/
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public QueueEvent offer(byte[] data, long timeout) throws KeeperException,
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InterruptedException {
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String path = createData(dir + "/" + prefix, data,
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CreateMode.PERSISTENT_SEQUENTIAL);
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String watchID = createData(
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dir + "/" + response_prefix + path.substring(path.lastIndexOf("-") + 1),
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null, CreateMode.EPHEMERAL);
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Object lock = new Object();
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LatchChildWatcher watcher = new LatchChildWatcher(lock);
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synchronized (lock) {
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if (zookeeper.exists(watchID, watcher, true) != null) {
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watcher.await(timeout);
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TimerContext time = stats.time(dir + "_offer");
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try {
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String path = createData(dir + "/" + prefix, data,
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CreateMode.PERSISTENT_SEQUENTIAL);
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String watchID = createData(
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dir + "/" + response_prefix + path.substring(path.lastIndexOf("-") + 1),
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null, CreateMode.EPHEMERAL);
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Object lock = new Object();
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LatchChildWatcher watcher = new LatchChildWatcher(lock);
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synchronized (lock) {
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if (zookeeper.exists(watchID, watcher, true) != null) {
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watcher.await(timeout);
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}
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}
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byte[] bytes = zookeeper.getData(watchID, null, null, true);
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zookeeper.delete(watchID, -1, true);
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return new QueueEvent(watchID, bytes, watcher.getWatchedEvent());
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} finally {
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time.stop();
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}
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byte[] bytes = zookeeper.getData(watchID, null, null, true);
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zookeeper.delete(watchID, -1, true);
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return new QueueEvent(watchID, bytes, watcher.getWatchedEvent());
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}
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/**
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@ -322,9 +354,14 @@ public class DistributedQueue {
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* @return data at the first element of the queue, or null.
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*/
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public byte[] peek() throws KeeperException, InterruptedException {
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TimerContext time = stats.time(dir + "_peek");
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try {
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QueueEvent element = element();
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if(element == null) return null;
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if (element == null) return null;
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return element.getBytes();
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} finally {
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time.stop();
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}
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}
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public static class QueueEvent {
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@ -399,38 +436,48 @@ public class DistributedQueue {
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* @return data at the first element of the queue, or null.
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*/
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public QueueEvent peek(long wait) throws KeeperException, InterruptedException {
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if (wait == 0) {
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return element();
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TimerContext time = null;
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if (wait == Long.MAX_VALUE) {
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time = stats.time(dir + "_peek_wait_forever");
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} else {
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time = stats.time(dir + "_peek_wait" + wait);
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}
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TreeMap<Long,String> orderedChildren;
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boolean waitedEnough = false;
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while (true) {
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LatchChildWatcher childWatcher = new LatchChildWatcher();
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try {
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orderedChildren = orderedChildren(childWatcher);
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} catch (KeeperException.NoNodeException e) {
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zookeeper.create(dir, new byte[0], acl, CreateMode.PERSISTENT, true);
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continue;
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}
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if(waitedEnough) {
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if(orderedChildren.isEmpty()) return null;
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}
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if (orderedChildren.size() == 0) {
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childWatcher.await(wait == Long.MAX_VALUE ? DEFAULT_TIMEOUT: wait);
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waitedEnough = wait != Long.MAX_VALUE;
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continue;
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try {
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if (wait == 0) {
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return element();
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}
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for (String headNode : orderedChildren.values()) {
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String path = dir + "/" + headNode;
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TreeMap<Long, String> orderedChildren;
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boolean waitedEnough = false;
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while (true) {
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LatchChildWatcher childWatcher = new LatchChildWatcher();
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try {
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byte[] data = zookeeper.getData(path, null, null, true);
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return new QueueEvent(path, data, childWatcher.getWatchedEvent());
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orderedChildren = orderedChildren(childWatcher);
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} catch (KeeperException.NoNodeException e) {
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// Another client deleted the node first.
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zookeeper.create(dir, new byte[0], acl, CreateMode.PERSISTENT, true);
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continue;
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}
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if (waitedEnough) {
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if (orderedChildren.isEmpty()) return null;
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}
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if (orderedChildren.size() == 0) {
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childWatcher.await(wait == Long.MAX_VALUE ? DEFAULT_TIMEOUT : wait);
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waitedEnough = wait != Long.MAX_VALUE;
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continue;
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}
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for (String headNode : orderedChildren.values()) {
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String path = dir + "/" + headNode;
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try {
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byte[] data = zookeeper.getData(path, null, null, true);
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return new QueueEvent(path, data, childWatcher.getWatchedEvent());
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} catch (KeeperException.NoNodeException e) {
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// Another client deleted the node first.
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}
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}
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}
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} finally {
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time.stop();
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}
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}
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@ -441,11 +488,17 @@ public class DistributedQueue {
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* @return Head of the queue or null.
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*/
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public byte[] poll() throws KeeperException, InterruptedException {
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TimerContext time = stats.time(dir + "_poll");
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try {
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return remove();
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} catch (NoSuchElementException e) {
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return null;
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} finally {
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time.stop();
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}
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}
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public Overseer.Stats getStats() {
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return stats;
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}
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}
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@ -27,12 +27,16 @@ import java.util.Collection;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.LinkedHashMap;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Locale;
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import java.util.Map;
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import java.util.Map.Entry;
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import java.util.Set;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.atomic.AtomicInteger;
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import org.apache.solr.client.solrj.SolrResponse;
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import org.apache.solr.common.SolrException;
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import org.apache.solr.common.cloud.ClosableThread;
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import org.apache.solr.common.cloud.ClusterState;
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@ -47,6 +51,9 @@ import org.apache.solr.common.cloud.ZkCoreNodeProps;
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import org.apache.solr.common.cloud.ZkNodeProps;
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import org.apache.solr.common.cloud.ZkStateReader;
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import org.apache.solr.handler.component.ShardHandler;
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import org.apache.solr.util.stats.Clock;
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import org.apache.solr.util.stats.Timer;
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import org.apache.solr.util.stats.TimerContext;
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import org.apache.zookeeper.CreateMode;
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import org.apache.zookeeper.KeeperException;
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import org.slf4j.Logger;
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@ -62,8 +69,11 @@ public class Overseer {
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public static final String REMOVESHARD = "removeshard";
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public static final String ADD_ROUTING_RULE = "addroutingrule";
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public static final String REMOVE_ROUTING_RULE = "removeroutingrule";
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public static final String STATE = "state";
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public static final int STATE_UPDATE_DELAY = 1500; // delay between cloud state updates
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public static final String CREATESHARD = "createshard";
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public static final String UPDATESHARDSTATE = "updateshardstate";
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private static Logger log = LoggerFactory.getLogger(Overseer.class);
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@ -88,13 +98,16 @@ public class Overseer {
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// Internal map which holds the information about failed tasks.
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private final DistributedMap failureMap;
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private final Stats zkStats;
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private Map clusterProps;
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private boolean isClosed = false;
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public ClusterStateUpdater(final ZkStateReader reader, final String myId) {
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public ClusterStateUpdater(final ZkStateReader reader, final String myId, Stats zkStats) {
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this.zkClient = reader.getZkClient();
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this.stateUpdateQueue = getInQueue(zkClient);
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this.workQueue = getInternalQueue(zkClient);
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this.zkStats = zkStats;
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this.stateUpdateQueue = getInQueue(zkClient, zkStats);
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this.workQueue = getInternalQueue(zkClient, zkStats);
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this.failureMap = getFailureMap(zkClient);
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this.runningMap = getRunningMap(zkClient);
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this.completedMap = getCompletedMap(zkClient);
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@ -102,6 +115,14 @@ public class Overseer {
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this.reader = reader;
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clusterProps = reader.getClusterProps();
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}
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public Stats getStateUpdateQueueStats() {
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return stateUpdateQueue.getStats();
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}
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public Stats getWorkQueueStats() {
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return workQueue.getStats();
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}
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@Override
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public void run() {
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@ -133,8 +154,10 @@ public class Overseer {
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else if (LeaderStatus.YES == isLeader) {
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final ZkNodeProps message = ZkNodeProps.load(head);
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final String operation = message.getStr(QUEUE_OPERATION);
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final TimerContext timerContext = stats.time(operation);
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try {
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clusterState = processMessage(clusterState, message, operation);
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stats.success(operation);
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} catch (Exception e) {
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// generally there is nothing we can do - in most cases, we have
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// an issue that will fail again on retry or we cannot communicate with
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@ -142,6 +165,9 @@ public class Overseer {
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// TODO: if ordering for the message is not important, we could
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// track retries and put it back on the end of the queue
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log.error("Overseer could not process the current clusterstate state update message, skipping the message.", e);
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stats.error(operation);
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} finally {
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timerContext.stop();
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}
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zkClient.setData(ZkStateReader.CLUSTER_STATE,
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ZkStateReader.toJSON(clusterState), true);
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@ -208,8 +234,10 @@ public class Overseer {
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while (head != null) {
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final ZkNodeProps message = ZkNodeProps.load(head.getBytes());
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final String operation = message.getStr(QUEUE_OPERATION);
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final TimerContext timerContext = stats.time(operation);
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try {
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clusterState = processMessage(clusterState, message, operation);
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stats.success(operation);
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} catch (Exception e) {
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// generally there is nothing we can do - in most cases, we have
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// an issue that will fail again on retry or we cannot communicate with
|
||||
|
|
@ -217,6 +245,9 @@ public class Overseer {
|
|||
// TODO: if ordering for the message is not important, we could
|
||||
// track retries and put it back on the end of the queue
|
||||
log.error("Overseer could not process the current clusterstate state update message, skipping the message.", e);
|
||||
stats.error(operation);
|
||||
} finally {
|
||||
timerContext.stop();
|
||||
}
|
||||
workQueue.offer(head.getBytes());
|
||||
|
||||
|
|
@ -253,7 +284,7 @@ public class Overseer {
|
|||
|
||||
private ClusterState processMessage(ClusterState clusterState,
|
||||
final ZkNodeProps message, final String operation) {
|
||||
if ("state".equals(operation)) {
|
||||
if (STATE.equals(operation)) {
|
||||
if( isLegacy( clusterProps )) {
|
||||
clusterState = updateState(clusterState, message);
|
||||
} else {
|
||||
|
|
@ -279,9 +310,9 @@ public class Overseer {
|
|||
message.getStr(ZkStateReader.SHARD_ID_PROP),
|
||||
sb.length() > 0 ? sb.toString() : null);
|
||||
|
||||
} else if ("createshard".equals(operation)) {
|
||||
} else if (CREATESHARD.equals(operation)) {
|
||||
clusterState = createShard(clusterState, message);
|
||||
} else if ("updateshardstate".equals(operation)) {
|
||||
} else if (UPDATESHARDSTATE.equals(operation)) {
|
||||
clusterState = updateShardState(clusterState, message);
|
||||
} else if (OverseerCollectionProcessor.CREATECOLLECTION.equals(operation)) {
|
||||
clusterState = buildCollection(clusterState, message);
|
||||
|
|
@ -1013,7 +1044,14 @@ public class Overseer {
|
|||
public boolean isClosed() {
|
||||
return this.isClosed;
|
||||
}
|
||||
|
||||
|
||||
public DistributedQueue getStateUpdateQueue() {
|
||||
return stateUpdateQueue;
|
||||
}
|
||||
|
||||
public DistributedQueue getWorkQueue() {
|
||||
return workQueue;
|
||||
}
|
||||
}
|
||||
|
||||
static void getShardNames(Integer numShards, List<String> shardNames) {
|
||||
|
|
@ -1077,11 +1115,15 @@ public class Overseer {
|
|||
private String adminPath;
|
||||
|
||||
private OverseerCollectionProcessor ocp;
|
||||
|
||||
private Stats stats;
|
||||
|
||||
// overseer not responsible for closing reader
|
||||
public Overseer(ShardHandler shardHandler, String adminPath, final ZkStateReader reader) throws KeeperException, InterruptedException {
|
||||
this.reader = reader;
|
||||
this.shardHandler = shardHandler;
|
||||
this.adminPath = adminPath;
|
||||
this.stats = new Stats();
|
||||
}
|
||||
|
||||
public void start(String id) {
|
||||
|
|
@ -1090,12 +1132,12 @@ public class Overseer {
|
|||
createOverseerNode(reader.getZkClient());
|
||||
//launch cluster state updater thread
|
||||
ThreadGroup tg = new ThreadGroup("Overseer state updater.");
|
||||
updaterThread = new OverseerThread(tg, new ClusterStateUpdater(reader, id));
|
||||
updaterThread = new OverseerThread(tg, new ClusterStateUpdater(reader, id, stats));
|
||||
updaterThread.setDaemon(true);
|
||||
|
||||
ThreadGroup ccTg = new ThreadGroup("Overseer collection creation process.");
|
||||
|
||||
ocp = new OverseerCollectionProcessor(reader, id, shardHandler, adminPath);
|
||||
ocp = new OverseerCollectionProcessor(reader, id, shardHandler, adminPath, stats);
|
||||
ccThread = new OverseerThread(ccTg, ocp, "Overseer-" + id);
|
||||
ccThread.setDaemon(true);
|
||||
|
||||
|
|
@ -1136,14 +1178,18 @@ public class Overseer {
|
|||
* Get queue that can be used to send messages to Overseer.
|
||||
*/
|
||||
public static DistributedQueue getInQueue(final SolrZkClient zkClient) {
|
||||
return getInQueue(zkClient, new Stats());
|
||||
}
|
||||
|
||||
static DistributedQueue getInQueue(final SolrZkClient zkClient, Stats zkStats) {
|
||||
createOverseerNode(zkClient);
|
||||
return new DistributedQueue(zkClient, "/overseer/queue", null);
|
||||
return new DistributedQueue(zkClient, "/overseer/queue", null, zkStats);
|
||||
}
|
||||
|
||||
/* Internal queue, not to be used outside of Overseer */
|
||||
static DistributedQueue getInternalQueue(final SolrZkClient zkClient) {
|
||||
static DistributedQueue getInternalQueue(final SolrZkClient zkClient, Stats zkStats) {
|
||||
createOverseerNode(zkClient);
|
||||
return new DistributedQueue(zkClient, "/overseer/queue-work", null);
|
||||
return new DistributedQueue(zkClient, "/overseer/queue-work", null, zkStats);
|
||||
}
|
||||
|
||||
/* Internal map for failed tasks, not to be used outside of the Overseer */
|
||||
|
|
@ -1166,8 +1212,12 @@ public class Overseer {
|
|||
|
||||
/* Collection creation queue */
|
||||
static DistributedQueue getCollectionQueue(final SolrZkClient zkClient) {
|
||||
return getCollectionQueue(zkClient, new Stats());
|
||||
}
|
||||
|
||||
static DistributedQueue getCollectionQueue(final SolrZkClient zkClient, Stats zkStats) {
|
||||
createOverseerNode(zkClient);
|
||||
return new DistributedQueue(zkClient, "/overseer/collection-queue-work", null);
|
||||
return new DistributedQueue(zkClient, "/overseer/collection-queue-work", null, zkStats);
|
||||
}
|
||||
|
||||
private static void createOverseerNode(final SolrZkClient zkClient) {
|
||||
|
|
@ -1192,4 +1242,109 @@ public class Overseer {
|
|||
return reader;
|
||||
}
|
||||
|
||||
/**
|
||||
* Used to hold statistics about overseer operations. It will be exposed
|
||||
* to the OverseerCollectionProcessor to return statistics.
|
||||
*
|
||||
* This is experimental API and subject to change.
|
||||
*/
|
||||
public static class Stats {
|
||||
static final int MAX_STORED_FAILURES = 10;
|
||||
|
||||
final Map<String, Stat> stats = Collections.synchronizedMap(new HashMap<String, Stat>());
|
||||
|
||||
public Map<String, Stat> getStats() {
|
||||
return stats;
|
||||
}
|
||||
|
||||
public int getSuccessCount(String operation) {
|
||||
Stat stat = stats.get(operation.toLowerCase(Locale.ROOT));
|
||||
return stat == null ? 0 : stat.success.get();
|
||||
}
|
||||
|
||||
public int getErrorCount(String operation) {
|
||||
Stat stat = stats.get(operation.toLowerCase(Locale.ROOT));
|
||||
return stat == null ? 0 : stat.errors.get();
|
||||
}
|
||||
|
||||
public void success(String operation) {
|
||||
String op = operation.toLowerCase(Locale.ROOT);
|
||||
Stat stat = stats.get(op);
|
||||
if (stat == null) {
|
||||
stat = new Stat();
|
||||
stats.put(op, stat);
|
||||
}
|
||||
stat.success.incrementAndGet();
|
||||
}
|
||||
|
||||
public void error(String operation) {
|
||||
String op = operation.toLowerCase(Locale.ROOT);
|
||||
Stat stat = stats.get(op);
|
||||
if (stat == null) {
|
||||
stat = new Stat();
|
||||
stats.put(op, stat);
|
||||
}
|
||||
stat.errors.incrementAndGet();
|
||||
}
|
||||
|
||||
public TimerContext time(String operation) {
|
||||
String op = operation.toLowerCase(Locale.ROOT);
|
||||
Stat stat = stats.get(op);
|
||||
if (stat == null) {
|
||||
stat = new Stat();
|
||||
stats.put(op, stat);
|
||||
}
|
||||
return stat.requestTime.time();
|
||||
}
|
||||
|
||||
public void storeFailureDetails(String operation, ZkNodeProps request, SolrResponse resp) {
|
||||
String op = operation.toLowerCase(Locale.ROOT);
|
||||
Stat stat = stats.get(op);
|
||||
if (stat == null) {
|
||||
stat = new Stat();
|
||||
stats.put(op, stat);
|
||||
}
|
||||
LinkedList<FailedOp> failedOps = stat.failureDetails;
|
||||
synchronized (failedOps) {
|
||||
if (failedOps.size() >= MAX_STORED_FAILURES) {
|
||||
failedOps.removeFirst();
|
||||
}
|
||||
failedOps.addLast(new FailedOp(request, resp));
|
||||
}
|
||||
}
|
||||
|
||||
public List<FailedOp> getFailureDetails(String operation) {
|
||||
Stat stat = stats.get(operation.toLowerCase(Locale.ROOT));
|
||||
if (stat == null || stat.failureDetails.isEmpty()) return null;
|
||||
LinkedList<FailedOp> failedOps = stat.failureDetails;
|
||||
synchronized (failedOps) {
|
||||
ArrayList<FailedOp> ret = new ArrayList<>(failedOps);
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public static class Stat {
|
||||
public final AtomicInteger success;
|
||||
public final AtomicInteger errors;
|
||||
public final Timer requestTime;
|
||||
public final LinkedList<FailedOp> failureDetails;
|
||||
|
||||
public Stat() {
|
||||
this.success = new AtomicInteger();
|
||||
this.errors = new AtomicInteger();
|
||||
this.requestTime = new Timer(TimeUnit.MILLISECONDS, TimeUnit.MINUTES, Clock.defaultClock());
|
||||
this.failureDetails = new LinkedList<>();
|
||||
}
|
||||
}
|
||||
|
||||
public static class FailedOp {
|
||||
public final ZkNodeProps req;
|
||||
public final SolrResponse resp;
|
||||
|
||||
public FailedOp(ZkNodeProps req, SolrResponse resp) {
|
||||
this.req = req;
|
||||
this.resp = resp;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -59,6 +59,9 @@ import org.apache.solr.handler.component.ShardHandler;
|
|||
import org.apache.solr.handler.component.ShardRequest;
|
||||
import org.apache.solr.handler.component.ShardResponse;
|
||||
import org.apache.solr.update.SolrIndexSplitter;
|
||||
import org.apache.solr.util.stats.Snapshot;
|
||||
import org.apache.solr.util.stats.Timer;
|
||||
import org.apache.solr.util.stats.TimerContext;
|
||||
import org.apache.zookeeper.CreateMode;
|
||||
import org.apache.zookeeper.KeeperException;
|
||||
import org.apache.zookeeper.data.Stat;
|
||||
|
|
@ -85,6 +88,7 @@ import static org.apache.solr.common.cloud.ZkStateReader.REPLICA_PROP;
|
|||
import static org.apache.solr.common.cloud.ZkStateReader.SHARD_ID_PROP;
|
||||
import static org.apache.solr.common.params.CollectionParams.CollectionAction.ADDREPLICA;
|
||||
import static org.apache.solr.common.params.CollectionParams.CollectionAction.ADDROLE;
|
||||
import static org.apache.solr.common.params.CollectionParams.CollectionAction.OVERSEERSTATUS;
|
||||
import static org.apache.solr.common.params.CollectionParams.CollectionAction.REMOVEROLE;
|
||||
|
||||
|
||||
|
|
@ -162,15 +166,18 @@ public class OverseerCollectionProcessor implements Runnable, ClosableThread {
|
|||
private ZkStateReader zkStateReader;
|
||||
|
||||
private boolean isClosed;
|
||||
|
||||
public OverseerCollectionProcessor(ZkStateReader zkStateReader, String myId, ShardHandler shardHandler, String adminPath) {
|
||||
this(zkStateReader, myId, shardHandler, adminPath, Overseer.getCollectionQueue(zkStateReader.getZkClient()),
|
||||
|
||||
private Overseer.Stats stats;
|
||||
|
||||
public OverseerCollectionProcessor(ZkStateReader zkStateReader, String myId, ShardHandler shardHandler, String adminPath, Overseer.Stats stats) {
|
||||
this(zkStateReader, myId, shardHandler, adminPath, stats, Overseer.getCollectionQueue(zkStateReader.getZkClient(), stats),
|
||||
Overseer.getRunningMap(zkStateReader.getZkClient()),
|
||||
Overseer.getCompletedMap(zkStateReader.getZkClient()), Overseer.getFailureMap(zkStateReader.getZkClient()));
|
||||
}
|
||||
|
||||
protected OverseerCollectionProcessor(ZkStateReader zkStateReader, String myId, ShardHandler shardHandler,
|
||||
String adminPath,
|
||||
Overseer.Stats stats,
|
||||
DistributedQueue workQueue,
|
||||
DistributedMap runningMap,
|
||||
DistributedMap completedMap,
|
||||
|
|
@ -183,6 +190,7 @@ public class OverseerCollectionProcessor implements Runnable, ClosableThread {
|
|||
this.runningMap = runningMap;
|
||||
this.completedMap = completedMap;
|
||||
this.failureMap = failureMap;
|
||||
this.stats = stats;
|
||||
}
|
||||
|
||||
@Override
|
||||
|
|
@ -227,7 +235,13 @@ public class OverseerCollectionProcessor implements Runnable, ClosableThread {
|
|||
|
||||
log.info("Overseer Collection Processor: Get the message id:" + head.getId() + " message:" + message.toString());
|
||||
final String operation = message.getStr(QUEUE_OPERATION);
|
||||
SolrResponse response = processMessage(message, operation);
|
||||
final TimerContext timerContext = stats.time("collection_" + operation); // even if operation is async, it is sync!
|
||||
SolrResponse response = null;
|
||||
try {
|
||||
response = processMessage(message, operation);
|
||||
} finally {
|
||||
timerContext.stop();
|
||||
}
|
||||
|
||||
head.setBytes(SolrResponse.serializable(response));
|
||||
if (!operation.equals(REQUESTSTATUS) && asyncId != null) {
|
||||
|
|
@ -242,6 +256,13 @@ public class OverseerCollectionProcessor implements Runnable, ClosableThread {
|
|||
|
||||
workQueue.remove(head);
|
||||
|
||||
if (response.getResponse().get("failure") != null || response.getResponse().get("exception") != null) {
|
||||
stats.error("collection_" + operation);
|
||||
stats.storeFailureDetails("collection_" + operation, message, response);
|
||||
} else {
|
||||
stats.success("collection_" + operation);
|
||||
}
|
||||
|
||||
log.info("Overseer Collection Processor: Message id:" + head.getId() + " complete, response:"+ response.getResponse().toString());
|
||||
} catch (KeeperException e) {
|
||||
if (e.code() == KeeperException.Code.SESSIONEXPIRED
|
||||
|
|
@ -451,7 +472,11 @@ public class OverseerCollectionProcessor implements Runnable, ClosableThread {
|
|||
addReplica(zkStateReader.getClusterState(), message, results);
|
||||
} else if (REQUESTSTATUS.equals(operation)) {
|
||||
requestStatus(message, results);
|
||||
} else {
|
||||
} else if (OVERSEERSTATUS.isEqual(operation)) {
|
||||
getOverseerStatus(message, results);
|
||||
}
|
||||
|
||||
else {
|
||||
throw new SolrException(ErrorCode.BAD_REQUEST, "Unknown operation:"
|
||||
+ operation);
|
||||
}
|
||||
|
|
@ -469,6 +494,79 @@ public class OverseerCollectionProcessor implements Runnable, ClosableThread {
|
|||
return new OverseerSolrResponse(results);
|
||||
}
|
||||
|
||||
private void getOverseerStatus(ZkNodeProps message, NamedList results) throws KeeperException, InterruptedException {
|
||||
String leaderNode = getLeaderNode(zkStateReader.getZkClient());
|
||||
results.add("leader", leaderNode);
|
||||
Stat stat = new Stat();
|
||||
zkStateReader.getZkClient().getData("/overseer/queue",null, stat, true);
|
||||
results.add("overseer_queue_size", stat.getNumChildren());
|
||||
stat = new Stat();
|
||||
zkStateReader.getZkClient().getData("/overseer/queue-work",null, stat, true);
|
||||
results.add("overseer_work_queue_size", stat.getNumChildren());
|
||||
stat = new Stat();
|
||||
zkStateReader.getZkClient().getData("/overseer/collection-queue-work",null, stat, true);
|
||||
results.add("overseer_collection_queue_size", stat.getNumChildren());
|
||||
|
||||
NamedList overseerStats = new NamedList();
|
||||
NamedList collectionStats = new NamedList();
|
||||
NamedList stateUpdateQueueStats = new NamedList();
|
||||
NamedList workQueueStats = new NamedList();
|
||||
NamedList collectionQueueStats = new NamedList();
|
||||
for (Map.Entry<String, Overseer.Stat> entry : this.stats.getStats().entrySet()) {
|
||||
String key = entry.getKey();
|
||||
NamedList<Object> lst = new SimpleOrderedMap<>();
|
||||
if (key.startsWith("collection_")) {
|
||||
collectionStats.add(key.substring(11), lst);
|
||||
int successes = this.stats.getSuccessCount(entry.getKey());
|
||||
int errors = this.stats.getErrorCount(entry.getKey());
|
||||
lst.add("requests", successes);
|
||||
lst.add("errors", errors);
|
||||
List<Overseer.FailedOp> failureDetails = this.stats.getFailureDetails(key);
|
||||
if (failureDetails != null) {
|
||||
List<SimpleOrderedMap<Object>> failures = new ArrayList<>();
|
||||
for (Overseer.FailedOp failedOp : failureDetails) {
|
||||
SimpleOrderedMap<Object> fail = new SimpleOrderedMap<>();
|
||||
fail.add("request", failedOp.req.getProperties());
|
||||
fail.add("response", failedOp.resp.getResponse());
|
||||
failures.add(fail);
|
||||
}
|
||||
lst.add("recent_failures", failures);
|
||||
}
|
||||
} else if (key.startsWith("/overseer/queue_")) {
|
||||
stateUpdateQueueStats.add(key.substring(16), lst);
|
||||
} else if (key.startsWith("/overseer/queue-work_")) {
|
||||
workQueueStats.add(key.substring(21), lst);
|
||||
} else if (key.startsWith("/overseer/collection-queue-work_")) {
|
||||
collectionQueueStats.add(key.substring(32), lst);
|
||||
} else {
|
||||
// overseer stats
|
||||
overseerStats.add(key, lst);
|
||||
int successes = this.stats.getSuccessCount(entry.getKey());
|
||||
int errors = this.stats.getErrorCount(entry.getKey());
|
||||
lst.add("requests", successes);
|
||||
lst.add("errors", errors);
|
||||
}
|
||||
Timer timer = entry.getValue().requestTime;
|
||||
Snapshot snapshot = timer.getSnapshot();
|
||||
lst.add("totalTime", timer.getSum());
|
||||
lst.add("avgRequestsPerMinute", timer.getMeanRate());
|
||||
lst.add("5minRateReqsPerMinute", timer.getFiveMinuteRate());
|
||||
lst.add("15minRateReqsPerMinute", timer.getFifteenMinuteRate());
|
||||
lst.add("avgTimePerRequest", timer.getMean());
|
||||
lst.add("medianRequestTime", snapshot.getMedian());
|
||||
lst.add("75thPcRequestTime", snapshot.get75thPercentile());
|
||||
lst.add("95thPcRequestTime", snapshot.get95thPercentile());
|
||||
lst.add("99thPcRequestTime", snapshot.get99thPercentile());
|
||||
lst.add("999thPcRequestTime", snapshot.get999thPercentile());
|
||||
}
|
||||
results.add("overseer_operations", overseerStats);
|
||||
results.add("collection_operations", collectionStats);
|
||||
results.add("overseer_queue", stateUpdateQueueStats);
|
||||
results.add("overseer_internal_queue", workQueueStats);
|
||||
results.add("collection_queue", collectionQueueStats);
|
||||
|
||||
}
|
||||
|
||||
private void processRoleCommand(ZkNodeProps message, String operation) throws KeeperException, InterruptedException {
|
||||
SolrZkClient zkClient = zkStateReader.getZkClient();
|
||||
Map roles = null;
|
||||
|
|
|
|||
|
|
@ -34,6 +34,7 @@ import static org.apache.solr.common.cloud.ZkStateReader.COLLECTION_PROP;
|
|||
import static org.apache.solr.common.cloud.ZkStateReader.SHARD_ID_PROP;
|
||||
import static org.apache.solr.common.params.CollectionParams.CollectionAction.ADDROLE;
|
||||
import static org.apache.solr.common.params.CollectionParams.CollectionAction.CLUSTERPROP;
|
||||
import static org.apache.solr.common.params.CollectionParams.CollectionAction.OVERSEERSTATUS;
|
||||
import static org.apache.solr.common.params.CollectionParams.CollectionAction.REMOVEROLE;
|
||||
|
||||
import java.io.IOException;
|
||||
|
|
@ -206,6 +207,10 @@ public class CollectionsHandler extends RequestHandlerBase {
|
|||
this.handleRequestStatus(req, rsp);
|
||||
break;
|
||||
}
|
||||
case OVERSEERSTATUS: {
|
||||
this.handleOverseerStatus(req, rsp);
|
||||
break;
|
||||
}
|
||||
default: {
|
||||
throw new RuntimeException("Unknown action: " + action);
|
||||
}
|
||||
|
|
@ -214,6 +219,12 @@ public class CollectionsHandler extends RequestHandlerBase {
|
|||
rsp.setHttpCaching(false);
|
||||
}
|
||||
|
||||
private void handleOverseerStatus(SolrQueryRequest req, SolrQueryResponse rsp) throws KeeperException, InterruptedException {
|
||||
Map<String, Object> props = ZkNodeProps.makeMap(
|
||||
Overseer.QUEUE_OPERATION, OVERSEERSTATUS.toLower());
|
||||
handleResponse(OVERSEERSTATUS.toLower(), new ZkNodeProps(props), rsp);
|
||||
}
|
||||
|
||||
private void handleProp(SolrQueryRequest req, SolrQueryResponse rsp) throws KeeperException, InterruptedException {
|
||||
req.getParams().required().check("name");
|
||||
String name = req.getParams().get("name");
|
||||
|
|
|
|||
|
|
@ -96,7 +96,7 @@ public class OverseerCollectionProcessorTest extends SolrTestCaseJ4 {
|
|||
DistributedQueue workQueue, DistributedMap runningMap,
|
||||
DistributedMap completedMap,
|
||||
DistributedMap failureMap) {
|
||||
super(zkStateReader, myId, shardHandler, adminPath, workQueue, runningMap, completedMap, failureMap);
|
||||
super(zkStateReader, myId, shardHandler, adminPath, new Overseer.Stats(), workQueue, runningMap, completedMap, failureMap);
|
||||
}
|
||||
|
||||
@Override
|
||||
|
|
|
|||
|
|
@ -0,0 +1,123 @@
|
|||
package org.apache.solr.cloud;
|
||||
|
||||
/*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership.
|
||||
* The ASF licenses this file to You under the Apache License, Version 2.0
|
||||
* (the "License"); you may not use this file except in compliance with
|
||||
* the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
import org.apache.solr.client.solrj.SolrRequest;
|
||||
import org.apache.solr.client.solrj.SolrServerException;
|
||||
import org.apache.solr.client.solrj.impl.HttpSolrServer;
|
||||
import org.apache.solr.client.solrj.request.QueryRequest;
|
||||
import org.apache.solr.client.solrj.response.CollectionAdminResponse;
|
||||
import org.apache.solr.common.cloud.DocRouter;
|
||||
import org.apache.solr.common.params.CollectionParams;
|
||||
import org.apache.solr.common.params.ModifiableSolrParams;
|
||||
import org.apache.solr.common.util.NamedList;
|
||||
import org.apache.solr.common.util.SimpleOrderedMap;
|
||||
import org.junit.After;
|
||||
import org.junit.Before;
|
||||
|
||||
import java.io.IOException;
|
||||
|
||||
public class OverseerStatusTest extends BasicDistributedZkTest {
|
||||
|
||||
public OverseerStatusTest() {
|
||||
schemaString = "schema15.xml"; // we need a string id
|
||||
}
|
||||
|
||||
@Override
|
||||
@Before
|
||||
public void setUp() throws Exception {
|
||||
super.setUp();
|
||||
System.setProperty("numShards", Integer.toString(sliceCount));
|
||||
System.setProperty("solr.xml.persist", "true");
|
||||
}
|
||||
|
||||
@Override
|
||||
@After
|
||||
public void tearDown() throws Exception {
|
||||
if (VERBOSE || printLayoutOnTearDown) {
|
||||
super.printLayout();
|
||||
}
|
||||
if (controlClient != null) {
|
||||
controlClient.shutdown();
|
||||
}
|
||||
if (cloudClient != null) {
|
||||
cloudClient.shutdown();
|
||||
}
|
||||
if (controlClientCloud != null) {
|
||||
controlClientCloud.shutdown();
|
||||
}
|
||||
super.tearDown();
|
||||
}
|
||||
|
||||
@Override
|
||||
public void doTest() throws Exception {
|
||||
waitForThingsToLevelOut(15);
|
||||
|
||||
String collectionName = "overseer_status_test";
|
||||
CollectionAdminResponse response = createCollection(collectionName, 1, 1, 1);
|
||||
NamedList<Object> resp = invokeCollectionApi("action",
|
||||
CollectionParams.CollectionAction.OVERSEERSTATUS.toLower());
|
||||
NamedList<Object> collection_operations = (NamedList<Object>) resp.get("collection_operations");
|
||||
NamedList<Object> overseer_operations = (NamedList<Object>) resp.get("overseer_operations");
|
||||
SimpleOrderedMap<Object> createcollection = (SimpleOrderedMap<Object>) collection_operations.get(OverseerCollectionProcessor.CREATECOLLECTION);
|
||||
assertEquals("No stats for createcollection in OverseerCollectionProcessor", 1, createcollection.get("requests"));
|
||||
createcollection = (SimpleOrderedMap<Object>) overseer_operations.get("createcollection");
|
||||
assertEquals("No stats for createcollection in Overseer", 1, createcollection.get("requests"));
|
||||
|
||||
invokeCollectionApi("action", CollectionParams.CollectionAction.RELOAD.toLower(), "name", collectionName);
|
||||
resp = invokeCollectionApi("action",
|
||||
CollectionParams.CollectionAction.OVERSEERSTATUS.toLower());
|
||||
collection_operations = (NamedList<Object>) resp.get("collection_operations");
|
||||
SimpleOrderedMap<Object> reload = (SimpleOrderedMap<Object>) collection_operations.get(OverseerCollectionProcessor.RELOADCOLLECTION);
|
||||
assertEquals("No stats for reload in OverseerCollectionProcessor", 1, reload.get("requests"));
|
||||
|
||||
try {
|
||||
invokeCollectionApi("action", CollectionParams.CollectionAction.SPLITSHARD.toLower(),
|
||||
"collection", "non_existent_collection",
|
||||
"shard", "non_existent_shard");
|
||||
} catch (Exception e) {
|
||||
// expected because we did not correctly specify required params for split
|
||||
}
|
||||
resp = invokeCollectionApi("action",
|
||||
CollectionParams.CollectionAction.OVERSEERSTATUS.toLower());
|
||||
collection_operations = (NamedList<Object>) resp.get("collection_operations");
|
||||
SimpleOrderedMap<Object> split = (SimpleOrderedMap<Object>) collection_operations.get(OverseerCollectionProcessor.SPLITSHARD);
|
||||
assertEquals("No stats for split in OverseerCollectionProcessor", 1, split.get("errors"));
|
||||
assertNotNull(split.get("recent_failures"));
|
||||
|
||||
waitForThingsToLevelOut(15);
|
||||
}
|
||||
|
||||
private NamedList<Object> invokeCollectionApi(String... args) throws SolrServerException, IOException {
|
||||
ModifiableSolrParams params = new ModifiableSolrParams();
|
||||
SolrRequest request = new QueryRequest(params);
|
||||
for (int i = 0; i < args.length - 1; i+=2) {
|
||||
params.add(args[i], args[i+1]);
|
||||
}
|
||||
request.setPath("/admin/collections");
|
||||
|
||||
String baseUrl = ((HttpSolrServer) shardToJetty.get(SHARD1).get(0).client.solrClient)
|
||||
.getBaseURL();
|
||||
baseUrl = baseUrl.substring(0, baseUrl.length() - "collection1".length());
|
||||
|
||||
HttpSolrServer baseServer = new HttpSolrServer(baseUrl);
|
||||
baseServer.setConnectionTimeout(15000);
|
||||
baseServer.setSoTimeout(60000 * 5);
|
||||
return baseServer.request(request);
|
||||
}
|
||||
}
|
||||
|
|
@ -43,6 +43,7 @@ import org.apache.solr.common.cloud.Slice;
|
|||
import org.apache.solr.common.cloud.SolrZkClient;
|
||||
import org.apache.solr.common.cloud.ZkNodeProps;
|
||||
import org.apache.solr.common.cloud.ZkStateReader;
|
||||
import org.apache.solr.handler.admin.CollectionsHandler;
|
||||
import org.apache.solr.handler.component.HttpShardHandlerFactory;
|
||||
import org.apache.solr.util.DefaultSolrThreadFactory;
|
||||
import org.apache.zookeeper.CreateMode;
|
||||
|
|
@ -912,7 +913,7 @@ public class OverseerTest extends SolrTestCaseJ4 {
|
|||
reader = new ZkStateReader(zkClient);
|
||||
reader.createClusterStateWatchersAndUpdate();
|
||||
//prepopulate work queue with some items to emulate previous overseer died before persisting state
|
||||
DistributedQueue queue = Overseer.getInternalQueue(zkClient);
|
||||
DistributedQueue queue = Overseer.getInternalQueue(zkClient, new Overseer.Stats());
|
||||
ZkNodeProps m = new ZkNodeProps(Overseer.QUEUE_OPERATION, "state",
|
||||
ZkStateReader.BASE_URL_PROP, "http://127.0.0.1/solr",
|
||||
ZkStateReader.NODE_NAME_PROP, "node1",
|
||||
|
|
|
|||
|
|
@ -43,7 +43,8 @@ public interface CollectionParams
|
|||
REMOVEROLE,
|
||||
CLUSTERPROP,
|
||||
REQUESTSTATUS,
|
||||
ADDREPLICA;
|
||||
ADDREPLICA,
|
||||
OVERSEERSTATUS;
|
||||
|
||||
public static CollectionAction get( String p )
|
||||
{
|
||||
|
|
|
|||
Loading…
Reference in New Issue