org.apache.catalina.tribes.group.RpcChannel Java Examples
The following examples show how to use
org.apache.catalina.tribes.group.RpcChannel.
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Example #1
| Source File: AbstractReplicatedMap.java From Tomcat8-Source-Read with MIT License | 6 votes |
|
/**
* Helper method to broadcast a message to all members in a channel
* @param msgtype int
* @param rpc boolean
* @throws ChannelException Send error
*/
protected void broadcast(int msgtype, boolean rpc) throws ChannelException {
Member[] members = channel.getMembers();
// No destination.
if (members.length == 0 ) return;
//send out a map membership message, only wait for the first reply
MapMessage msg = new MapMessage(this.mapContextName, msgtype,
false, null, null, null, channel.getLocalMember(false), null);
if ( rpc) {
Response[] resp = rpcChannel.send(members, msg,
RpcChannel.FIRST_REPLY, (channelSendOptions), rpcTimeout);
if (resp.length > 0) {
for (int i = 0; i < resp.length; i++) {
mapMemberAdded(resp[i].getSource());
messageReceived(resp[i].getMessage(), resp[i].getSource());
}
} else {
log.warn(sm.getString("abstractReplicatedMap.broadcast.noReplies"));
}
} else {
channel.send(channel.getMembers(),msg,channelSendOptions);
}
}
Example #2
| Source File: AbstractReplicatedMap.java From tomcatsrc with Apache License 2.0 | 6 votes |
|
/**
* Helper method to broadcast a message to all members in a channel
* @param msgtype int
* @param rpc boolean
* @throws ChannelException
*/
protected void broadcast(int msgtype, boolean rpc) throws ChannelException {
Member[] members = channel.getMembers();
// No destination.
if (members.length == 0 ) return;
//send out a map membership message, only wait for the first reply
MapMessage msg = new MapMessage(this.mapContextName, msgtype,
false, null, null, null, channel.getLocalMember(false), null);
if ( rpc) {
Response[] resp = rpcChannel.send(members, msg,
RpcChannel.FIRST_REPLY, (channelSendOptions), rpcTimeout);
if (resp.length > 0) {
for (int i = 0; i < resp.length; i++) {
mapMemberAdded(resp[i].getSource());
messageReceived(resp[i].getMessage(), resp[i].getSource());
}
} else {
log.warn("broadcast received 0 replies, probably a timeout.");
}
} else {
channel.send(channel.getMembers(),msg,channelSendOptions);
}
}
Example #3
| Source File: AbstractReplicatedMap.java From Tomcat7.0.67 with Apache License 2.0 | 6 votes |
|
/**
* Helper method to broadcast a message to all members in a channel
* @param msgtype int
* @param rpc boolean
* @throws ChannelException
*/
protected void broadcast(int msgtype, boolean rpc) throws ChannelException {
Member[] members = channel.getMembers();
// No destination.
if (members.length == 0 ) return;
//send out a map membership message, only wait for the first reply
MapMessage msg = new MapMessage(this.mapContextName, msgtype,
false, null, null, null, channel.getLocalMember(false), null);
if ( rpc) {
Response[] resp = rpcChannel.send(members, msg,
RpcChannel.FIRST_REPLY, (channelSendOptions), rpcTimeout);
if (resp.length > 0) {
for (int i = 0; i < resp.length; i++) {
mapMemberAdded(resp[i].getSource());
messageReceived(resp[i].getMessage(), resp[i].getSource());
}
} else {
log.warn("broadcast received 0 replies, probably a timeout.");
}
} else {
channel.send(channel.getMembers(),msg,channelSendOptions);
}
}
Example #4
| Source File: EchoRpcTest.java From tomcatsrc with Apache License 2.0 | 5 votes |
|
public EchoRpcTest(Channel channel, String name, int count, String message, long pause, int options, long timeout) {
this.channel = channel;
this.count = count;
this.message = message;
this.pause = pause;
this.options = options;
this.rpc = new RpcChannel(name.getBytes(),channel,this);
this.timeout = timeout;
this.name = name;
}
Example #5
| Source File: EchoRpcTest.java From Tomcat8-Source-Read with MIT License | 5 votes |
|
public EchoRpcTest(Channel channel, String name, int count, String message, long pause, int options, long timeout) {
this.channel = channel;
this.count = count;
this.message = message;
this.pause = pause;
this.options = options;
this.rpc = new RpcChannel(name.getBytes(),channel,this);
this.timeout = timeout;
this.name = name;
}
Example #6
| Source File: EchoRpcTest.java From Tomcat7.0.67 with Apache License 2.0 | 5 votes |
|
public EchoRpcTest(Channel channel, String name, int count, String message, long pause, int options, long timeout) {
this.channel = channel;
this.count = count;
this.message = message;
this.pause = pause;
this.options = options;
this.rpc = new RpcChannel(name.getBytes(),channel,this);
this.timeout = timeout;
this.name = name;
}
Example #7
| Source File: EchoRpcTest.java From tomcatsrc with Apache License 2.0 | 4 votes |
|
public static void main(String[] args) throws Exception {
long pause = 3000;
int count = 1000000;
int stats = 10000;
String name = "EchoRpcId";
int options = RpcChannel.ALL_REPLY;
long timeout = 15000;
String message = "EchoRpcMessage";
if (args.length == 0) {
usage();
System.exit(1);
}
for (int i = 0; i < args.length; i++) {
if ("-threads".equals(args[i])) {
// Not used
} else if ("-count".equals(args[i])) {
count = Integer.parseInt(args[++i]);
System.out.println("Sending "+count+" messages.");
} else if ("-pause".equals(args[i])) {
pause = Long.parseLong(args[++i])*1000;
} else if ("-break".equals(args[i])) {
// Not used
} else if ("-stats".equals(args[i])) {
stats = Integer.parseInt(args[++i]);
System.out.println("Stats every "+stats+" message");
} else if ("-timeout".equals(args[i])) {
timeout = Long.parseLong(args[++i]);
} else if ("-message".equals(args[i])) {
message = args[++i];
} else if ("-name".equals(args[i])) {
name = args[++i];
} else if ("-mode".equals(args[i])) {
if ( "all".equals(args[++i]) ) options = RpcChannel.ALL_REPLY;
else if ( "first".equals(args[i]) ) options = RpcChannel.FIRST_REPLY;
else if ( "majority".equals(args[i]) ) options = RpcChannel.MAJORITY_REPLY;
} else if ("-debug".equals(args[i])) {
// Not used
} else if ("-help".equals(args[i])) {
usage();
System.exit(1);
}
}
ManagedChannel channel = (ManagedChannel)ChannelCreator.createChannel(args);
EchoRpcTest test = new EchoRpcTest(channel,name,count,message,pause,options,timeout);
channel.start(Channel.DEFAULT);
Runtime.getRuntime().addShutdownHook(new Shutdown(channel));
test.run();
System.out.println("System test complete, sleeping to let threads finish.");
Thread.sleep(60*1000*60);
}
Example #8
| Source File: AbstractReplicatedMap.java From Tomcat8-Source-Read with MIT License | 4 votes |
|
/**
* Initializes the map by creating the RPC channel, registering itself as a channel listener
* This method is also responsible for initiating the state transfer
* @param owner Object
* @param channel Channel
* @param mapContextName String
* @param timeout long
* @param channelSendOptions int
* @param cls ClassLoader[]
* @param terminate - Flag for whether to terminate this map that failed to start.
*/
protected void init(MapOwner owner, Channel channel, String mapContextName,
long timeout, int channelSendOptions,ClassLoader[] cls, boolean terminate) {
long start = System.currentTimeMillis();
if (log.isInfoEnabled()) log.info(sm.getString("abstractReplicatedMap.init.start", mapContextName));
this.mapOwner = owner;
this.externalLoaders = cls;
this.channelSendOptions = channelSendOptions;
this.channel = channel;
this.rpcTimeout = timeout;
this.mapname = mapContextName;
//unique context is more efficient if it is stored as bytes
this.mapContextName = mapContextName.getBytes(StandardCharsets.ISO_8859_1);
if ( log.isTraceEnabled() ) log.trace("Created Lazy Map with name:"+mapContextName+", bytes:"+Arrays.toString(this.mapContextName));
//create an rpc channel and add the map as a listener
this.rpcChannel = new RpcChannel(this.mapContextName, channel, this);
//add this map as a message listener
this.channel.addChannelListener(this);
//listen for membership notifications
this.channel.addMembershipListener(this);
try {
//broadcast our map, this just notifies other members of our existence
broadcast(MapMessage.MSG_INIT, true);
//transfer state from another map
transferState();
//state is transferred, we are ready for messaging
broadcast(MapMessage.MSG_START, true);
} catch (ChannelException x) {
log.warn(sm.getString("abstractReplicatedMap.unableSend.startMessage"));
if (terminate) {
breakdown();
throw new RuntimeException(sm.getString("abstractReplicatedMap.unableStart"),x);
}
}
this.state = State.INITIALIZED;
long complete = System.currentTimeMillis() - start;
if (log.isInfoEnabled())
log.info(sm.getString("abstractReplicatedMap.init.completed",
mapContextName, Long.toString(complete)));
}
Example #9
| Source File: AbstractReplicatedMap.java From tomcatsrc with Apache License 2.0 | 4 votes |
|
public RpcChannel getRpcChannel() {
return rpcChannel;
}
Example #10
| Source File: AbstractReplicatedMap.java From tomcatsrc with Apache License 2.0 | 4 votes |
|
@SuppressWarnings("unchecked")
@Override
public V get(Object key) {
MapEntry<K,V> entry = innerMap.get(key);
if (log.isTraceEnabled()) log.trace("Requesting id:"+key+" entry:"+entry);
if ( entry == null ) return null;
if ( !entry.isPrimary() ) {
//if the message is not primary, we need to retrieve the latest value
try {
Member[] backup = null;
MapMessage msg = null;
if (entry.isBackup()) {
//select a new backup node
backup = publishEntryInfo(key, entry.getValue());
} else if ( entry.isProxy() ) {
//make sure we don't retrieve from ourselves
msg = new MapMessage(getMapContextName(), MapMessage.MSG_RETRIEVE_BACKUP, false,
(Serializable) key, null, null, null,null);
Response[] resp = getRpcChannel().send(entry.getBackupNodes(),msg, RpcChannel.FIRST_REPLY, getChannelSendOptions(), getRpcTimeout());
if (resp == null || resp.length == 0 || resp[0].getMessage() == null) {
//no responses
log.warn("Unable to retrieve remote object for key:" + key);
return null;
}
msg = (MapMessage) resp[0].getMessage();
msg.deserialize(getExternalLoaders());
backup = entry.getBackupNodes();
if ( msg.getValue()!=null ) entry.setValue((V) msg.getValue());
// notify member
msg = new MapMessage(getMapContextName(), MapMessage.MSG_NOTIFY_MAPMEMBER,false,
(Serializable)entry.getKey(), null, null, channel.getLocalMember(false), backup);
if ( backup != null && backup.length > 0) {
getChannel().send(backup, msg, getChannelSendOptions());
}
//invalidate the previous primary
msg = new MapMessage(getMapContextName(),MapMessage.MSG_PROXY,false,(Serializable)key,null,null,channel.getLocalMember(false),backup);
Member[] dest = getMapMembersExcl(backup);
if ( dest!=null && dest.length >0) {
getChannel().send(dest, msg, getChannelSendOptions());
}
if (entry.getValue() instanceof ReplicatedMapEntry) {
ReplicatedMapEntry val = (ReplicatedMapEntry)entry.getValue();
val.setOwner(getMapOwner());
}
} else if ( entry.isCopy() ) {
backup = getMapMembers();
if (backup.length > 0) {
msg = new MapMessage(getMapContextName(), MapMessage.MSG_NOTIFY_MAPMEMBER,false,
(Serializable)key,null,null,channel.getLocalMember(false),backup);
getChannel().send(backup, msg, getChannelSendOptions());
}
}
entry.setPrimary(channel.getLocalMember(false));
entry.setBackupNodes(backup);
entry.setBackup(false);
entry.setProxy(false);
entry.setCopy(false);
if ( getMapOwner()!=null ) getMapOwner().objectMadePrimay(key, entry.getValue());
} catch (Exception x) {
log.error("Unable to replicate out data for a AbstractReplicatedMap.get operation", x);
return null;
}
}
if (log.isTraceEnabled()) log.trace("Requesting id:"+key+" result:"+entry.getValue());
return entry.getValue();
}
Example #11
| Source File: AbstractReplicatedMap.java From tomcatsrc with Apache License 2.0 | 4 votes |
|
/**
* Initializes the map by creating the RPC channel, registering itself as a channel listener
* This method is also responsible for initiating the state transfer
* @param owner Object
* @param channel Channel
* @param mapContextName String
* @param timeout long
* @param channelSendOptions int
* @param cls ClassLoader[]
* @param terminate - Flag for whether to terminate this map that failed to start.
*/
protected void init(MapOwner owner, Channel channel, String mapContextName,
long timeout, int channelSendOptions,ClassLoader[] cls, boolean terminate) {
long start = System.currentTimeMillis();
if (log.isInfoEnabled()) log.info("Initializing AbstractReplicatedMap with context name:"+mapContextName);
this.mapOwner = owner;
this.externalLoaders = cls;
this.channelSendOptions = channelSendOptions;
this.channel = channel;
this.rpcTimeout = timeout;
this.mapname = mapContextName;
//unique context is more efficient if it is stored as bytes
this.mapContextName = mapContextName.getBytes(CHARSET_ISO_8859_1);
if ( log.isTraceEnabled() ) log.trace("Created Lazy Map with name:"+mapContextName+", bytes:"+Arrays.toString(this.mapContextName));
//create an rpc channel and add the map as a listener
this.rpcChannel = new RpcChannel(this.mapContextName, channel, this);
//add this map as a message listener
this.channel.addChannelListener(this);
//listen for membership notifications
this.channel.addMembershipListener(this);
try {
//broadcast our map, this just notifies other members of our existence
broadcast(MapMessage.MSG_INIT, true);
//transfer state from another map
transferState();
//state is transferred, we are ready for messaging
broadcast(MapMessage.MSG_START, true);
} catch (ChannelException x) {
log.warn("Unable to send map start message.");
if (terminate) {
breakdown();
throw new RuntimeException("Unable to start replicated map.",x);
}
}
this.state = State.INITIALIZED;
long complete = System.currentTimeMillis() - start;
if (log.isInfoEnabled())
log.info("AbstractReplicatedMap[" +mapContextName + "] initialization was completed in " + complete + " ms.");
}
Example #12
| Source File: EchoRpcTest.java From Tomcat7.0.67 with Apache License 2.0 | 4 votes |
|
public static void main(String[] args) throws Exception {
long pause = 3000;
int count = 1000000;
int stats = 10000;
String name = "EchoRpcId";
int options = RpcChannel.ALL_REPLY;
long timeout = 15000;
String message = "EchoRpcMessage";
if (args.length == 0) {
usage();
System.exit(1);
}
for (int i = 0; i < args.length; i++) {
if ("-threads".equals(args[i])) {
// Not used
} else if ("-count".equals(args[i])) {
count = Integer.parseInt(args[++i]);
System.out.println("Sending "+count+" messages.");
} else if ("-pause".equals(args[i])) {
pause = Long.parseLong(args[++i])*1000;
} else if ("-break".equals(args[i])) {
// Not used
} else if ("-stats".equals(args[i])) {
stats = Integer.parseInt(args[++i]);
System.out.println("Stats every "+stats+" message");
} else if ("-timeout".equals(args[i])) {
timeout = Long.parseLong(args[++i]);
} else if ("-message".equals(args[i])) {
message = args[++i];
} else if ("-name".equals(args[i])) {
name = args[++i];
} else if ("-mode".equals(args[i])) {
if ( "all".equals(args[++i]) ) options = RpcChannel.ALL_REPLY;
else if ( "first".equals(args[i]) ) options = RpcChannel.FIRST_REPLY;
else if ( "majority".equals(args[i]) ) options = RpcChannel.MAJORITY_REPLY;
} else if ("-debug".equals(args[i])) {
// Not used
} else if ("-help".equals(args[i])) {
usage();
System.exit(1);
}
}
ManagedChannel channel = (ManagedChannel)ChannelCreator.createChannel(args);
EchoRpcTest test = new EchoRpcTest(channel,name,count,message,pause,options,timeout);
channel.start(Channel.DEFAULT);
Runtime.getRuntime().addShutdownHook(new Shutdown(channel));
test.run();
System.out.println("System test complete, sleeping to let threads finish.");
Thread.sleep(60*1000*60);
}
Example #13
| Source File: AbstractReplicatedMap.java From Tomcat7.0.67 with Apache License 2.0 | 4 votes |
|
public RpcChannel getRpcChannel() {
return rpcChannel;
}
Example #14
| Source File: AbstractReplicatedMap.java From Tomcat7.0.67 with Apache License 2.0 | 4 votes |
|
@SuppressWarnings("unchecked")
@Override
public V get(Object key) {
MapEntry<K,V> entry = innerMap.get(key);
if (log.isTraceEnabled()) log.trace("Requesting id:"+key+" entry:"+entry);
if ( entry == null ) return null;
if ( !entry.isPrimary() ) {
//if the message is not primary, we need to retrieve the latest value
try {
Member[] backup = null;
MapMessage msg = null;
if (entry.isBackup()) {
//select a new backup node
backup = publishEntryInfo(key, entry.getValue());
} else if ( entry.isProxy() ) {
//make sure we don't retrieve from ourselves
msg = new MapMessage(getMapContextName(), MapMessage.MSG_RETRIEVE_BACKUP, false,
(Serializable) key, null, null, null,null);
Response[] resp = getRpcChannel().send(entry.getBackupNodes(),msg, RpcChannel.FIRST_REPLY, Channel.SEND_OPTIONS_DEFAULT, getRpcTimeout());
if (resp == null || resp.length == 0) {
//no responses
log.warn("Unable to retrieve remote object for key:" + key);
return null;
}
msg = (MapMessage) resp[0].getMessage();
msg.deserialize(getExternalLoaders());
backup = entry.getBackupNodes();
if ( msg.getValue()!=null ) entry.setValue((V) msg.getValue());
//invalidate the previous primary
msg = new MapMessage(getMapContextName(),MapMessage.MSG_PROXY,false,(Serializable)key,null,null,channel.getLocalMember(false),backup);
Member[] dest = getMapMembersExcl(backup);
if ( dest!=null && dest.length >0) {
getChannel().send(dest, msg, getChannelSendOptions());
}
if (entry.getValue() instanceof ReplicatedMapEntry) {
ReplicatedMapEntry val = (ReplicatedMapEntry)entry.getValue();
val.setOwner(getMapOwner());
}
} else if ( entry.isCopy() ) {
backup = getMapMembers();
if (backup.length > 0) {
msg = new MapMessage(getMapContextName(), MapMessage.MSG_NOTIFY_MAPMEMBER,false,
(Serializable)key,null,null,channel.getLocalMember(false),backup);
getChannel().send(backup, msg, getChannelSendOptions());
}
}
entry.setPrimary(channel.getLocalMember(false));
entry.setBackupNodes(backup);
entry.setBackup(false);
entry.setProxy(false);
entry.setCopy(false);
if ( getMapOwner()!=null ) getMapOwner().objectMadePrimay(key, entry.getValue());
} catch (Exception x) {
log.error("Unable to replicate out data for a AbstractReplicatedMap.get operation", x);
return null;
}
}
if (log.isTraceEnabled()) log.trace("Requesting id:"+key+" result:"+entry.getValue());
return entry.getValue();
}
Example #15
| Source File: AbstractReplicatedMap.java From Tomcat7.0.67 with Apache License 2.0 | 4 votes |
|
/**
* Sends a ping out to all the members in the cluster, not just map members
* that this map is alive.
* @param timeout long
* @throws ChannelException
*/
protected void ping(long timeout) throws ChannelException {
//send out a map membership message, only wait for the first reply
MapMessage msg = new MapMessage(this.mapContextName,
MapMessage.MSG_INIT,
false,
null,
null,
null,
channel.getLocalMember(false),
null);
if ( channel.getMembers().length > 0 ) {
try {
//send a ping, wait for all nodes to reply
Response[] resp = rpcChannel.send(channel.getMembers(),
msg, RpcChannel.ALL_REPLY,
(channelSendOptions),
(int) accessTimeout);
for (int i = 0; i < resp.length; i++) {
memberAlive(resp[i].getSource());
}
} catch (ChannelException ce) {
// Handle known failed members
FaultyMember[] faultyMembers = ce.getFaultyMembers();
for (FaultyMember faultyMember : faultyMembers) {
memberDisappeared(faultyMember.getMember());
}
throw ce;
}
}
//update our map of members, expire some if we didn't receive a ping back
synchronized (mapMembers) {
Member[] members = mapMembers.keySet().toArray(new Member[mapMembers.size()]);
long now = System.currentTimeMillis();
for (Member member : members) {
long access = mapMembers.get(member).longValue();
if ( (now - access) > timeout ) {
memberDisappeared(member);
}
}
}//synch
}
Example #16
| Source File: AbstractReplicatedMap.java From Tomcat7.0.67 with Apache License 2.0 | 4 votes |
|
/**
* Initializes the map by creating the RPC channel, registering itself as a channel listener
* This method is also responsible for initiating the state transfer
* @param owner Object
* @param channel Channel
* @param mapContextName String
* @param timeout long
* @param channelSendOptions int
* @param cls ClassLoader[]
* @param terminate - Flag for whether to terminate this map that failed to start.
*/
protected void init(MapOwner owner, Channel channel, String mapContextName,
long timeout, int channelSendOptions,ClassLoader[] cls, boolean terminate) {
long start = System.currentTimeMillis();
if (log.isInfoEnabled()) log.info("Initializing AbstractReplicatedMap with context name:"+mapContextName);
this.mapOwner = owner;
this.externalLoaders = cls;
this.channelSendOptions = channelSendOptions;
this.channel = channel;
this.rpcTimeout = timeout;
this.mapname = mapContextName;
//unique context is more efficient if it is stored as bytes
this.mapContextName = mapContextName.getBytes(CHARSET_ISO_8859_1);
if ( log.isTraceEnabled() ) log.trace("Created Lazy Map with name:"+mapContextName+", bytes:"+Arrays.toString(this.mapContextName));
//create an rpc channel and add the map as a listener
this.rpcChannel = new RpcChannel(this.mapContextName, channel, this);
//add this map as a message listener
this.channel.addChannelListener(this);
//listen for membership notifications
this.channel.addMembershipListener(this);
try {
//broadcast our map, this just notifies other members of our existence
broadcast(MapMessage.MSG_INIT, true);
//transfer state from another map
transferState();
//state is transferred, we are ready for messaging
broadcast(MapMessage.MSG_START, true);
} catch (ChannelException x) {
log.warn("Unable to send map start message.");
if (terminate) {
breakdown();
throw new RuntimeException("Unable to start replicated map.",x);
}
}
long complete = System.currentTimeMillis() - start;
if (log.isInfoEnabled())
log.info("AbstractReplicatedMap[" +mapContextName + "] initialization was completed in " + complete + " ms.");
}
Example #17
| Source File: EchoRpcTest.java From Tomcat8-Source-Read with MIT License | 4 votes |
|
public static void main(String[] args) throws Exception {
long pause = 3000;
int count = 1000000;
int stats = 10000;
String name = "EchoRpcId";
int options = RpcChannel.ALL_REPLY;
long timeout = 15000;
String message = "EchoRpcMessage";
if (args.length == 0) {
usage();
System.exit(1);
}
for (int i = 0; i < args.length; i++) {
if ("-threads".equals(args[i])) {
// Not used
} else if ("-count".equals(args[i])) {
count = Integer.parseInt(args[++i]);
System.out.println("Sending "+count+" messages.");
} else if ("-pause".equals(args[i])) {
pause = Long.parseLong(args[++i])*1000;
} else if ("-break".equals(args[i])) {
// Not used
} else if ("-stats".equals(args[i])) {
stats = Integer.parseInt(args[++i]);
System.out.println("Stats every "+stats+" message");
} else if ("-timeout".equals(args[i])) {
timeout = Long.parseLong(args[++i]);
} else if ("-message".equals(args[i])) {
message = args[++i];
} else if ("-name".equals(args[i])) {
name = args[++i];
} else if ("-mode".equals(args[i])) {
if ( "all".equals(args[++i]) ) options = RpcChannel.ALL_REPLY;
else if ( "first".equals(args[i]) ) options = RpcChannel.FIRST_REPLY;
else if ( "majority".equals(args[i]) ) options = RpcChannel.MAJORITY_REPLY;
} else if ("-debug".equals(args[i])) {
// Not used
} else if ("-help".equals(args[i])) {
usage();
System.exit(1);
}
}
ManagedChannel channel = (ManagedChannel)ChannelCreator.createChannel(args);
EchoRpcTest test = new EchoRpcTest(channel,name,count,message,pause,options,timeout);
channel.start(Channel.DEFAULT);
Runtime.getRuntime().addShutdownHook(new Shutdown(channel));
test.run();
System.out.println("System test complete, sleeping to let threads finish.");
Thread.sleep(60*1000*60);
}
Example #18
| Source File: AbstractReplicatedMap.java From Tomcat8-Source-Read with MIT License | 4 votes |
|
public RpcChannel getRpcChannel() {
return rpcChannel;
}
Example #19
| Source File: AbstractReplicatedMap.java From Tomcat8-Source-Read with MIT License | 4 votes |
|
@SuppressWarnings("unchecked")
@Override
public V get(Object key) {
MapEntry<K,V> entry = innerMap.get(key);
if (log.isTraceEnabled()) log.trace("Requesting id:"+key+" entry:"+entry);
if ( entry == null ) return null;
if ( !entry.isPrimary() ) {
//if the message is not primary, we need to retrieve the latest value
try {
Member[] backup = null;
MapMessage msg = null;
if (entry.isBackup()) {
//select a new backup node
backup = publishEntryInfo(key, entry.getValue());
} else if ( entry.isProxy() ) {
//make sure we don't retrieve from ourselves
msg = new MapMessage(getMapContextName(), MapMessage.MSG_RETRIEVE_BACKUP, false,
(Serializable) key, null, null, null,null);
Response[] resp = getRpcChannel().send(entry.getBackupNodes(),msg, RpcChannel.FIRST_REPLY, getChannelSendOptions(), getRpcTimeout());
if (resp == null || resp.length == 0 || resp[0].getMessage() == null) {
//no responses
log.warn(sm.getString("abstractReplicatedMap.unable.retrieve", key));
return null;
}
msg = (MapMessage) resp[0].getMessage();
msg.deserialize(getExternalLoaders());
backup = entry.getBackupNodes();
if ( msg.getValue()!=null ) entry.setValue((V) msg.getValue());
// notify member
msg = new MapMessage(getMapContextName(), MapMessage.MSG_NOTIFY_MAPMEMBER,false,
(Serializable)entry.getKey(), null, null, channel.getLocalMember(false), backup);
if ( backup != null && backup.length > 0) {
getChannel().send(backup, msg, getChannelSendOptions());
}
//invalidate the previous primary
msg = new MapMessage(getMapContextName(),MapMessage.MSG_PROXY,false,(Serializable)key,null,null,channel.getLocalMember(false),backup);
Member[] dest = getMapMembersExcl(backup);
if ( dest!=null && dest.length >0) {
getChannel().send(dest, msg, getChannelSendOptions());
}
if (entry.getValue() instanceof ReplicatedMapEntry) {
ReplicatedMapEntry val = (ReplicatedMapEntry)entry.getValue();
val.setOwner(getMapOwner());
}
} else if ( entry.isCopy() ) {
backup = getMapMembers();
if (backup.length > 0) {
msg = new MapMessage(getMapContextName(), MapMessage.MSG_NOTIFY_MAPMEMBER,false,
(Serializable)key,null,null,channel.getLocalMember(false),backup);
getChannel().send(backup, msg, getChannelSendOptions());
}
}
entry.setPrimary(channel.getLocalMember(false));
entry.setBackupNodes(backup);
entry.setBackup(false);
entry.setProxy(false);
entry.setCopy(false);
if ( getMapOwner()!=null ) getMapOwner().objectMadePrimary(key, entry.getValue());
} catch (RuntimeException | ChannelException | ClassNotFoundException | IOException x) {
log.error(sm.getString("abstractReplicatedMap.unable.get"), x);
return null;
}
}
if (log.isTraceEnabled()) log.trace("Requesting id:"+key+" result:"+entry.getValue());
return entry.getValue();
}
