/**
* Update token map with a set of token/endpoint pairs in normal state.
*
* <p>Prefer this whenever there are multiple pairs to update, as each update (whether a single or
* multiple) is expensive (CASSANDRA-3831).
*
* @param endpointTokens
*/
public void updateNormalTokens(Multimap<InetAddress, Token> endpointTokens) {
if (endpointTokens.isEmpty()) return;
lock.writeLock().lock();
try {
boolean shouldSortTokens = false;
for (InetAddress endpoint : endpointTokens.keySet()) {
Collection<Token> tokens = endpointTokens.get(endpoint);
assert tokens != null && !tokens.isEmpty();
bootstrapTokens.removeValue(endpoint);
tokenToEndpointMap.removeValue(endpoint);
topology.addEndpoint(endpoint);
leavingEndpoints.remove(endpoint);
removeFromMoving(endpoint); // also removing this endpoint from moving
for (Token token : tokens) {
InetAddress prev = tokenToEndpointMap.put(token, endpoint);
if (!endpoint.equals(prev)) {
if (prev != null)
logger.warn("Token {} changing ownership from {} to {}", token, prev, endpoint);
shouldSortTokens = true;
}
}
}
if (shouldSortTokens) sortedTokens = sortTokens();
} finally {
lock.writeLock().unlock();
}
}
/**
* @return a (stable copy, won't be modified) Token to Endpoint map for all the normal and
* bootstrapping nodes in the cluster.
*/
public Map<Token, InetAddress> getNormalAndBootstrappingTokenToEndpointMap() {
lock.readLock().lock();
try {
Map<Token, InetAddress> map =
new HashMap<Token, InetAddress>(tokenToEndpointMap.size() + bootstrapTokens.size());
map.putAll(tokenToEndpointMap);
map.putAll(bootstrapTokens);
return map;
} finally {
lock.readLock().unlock();
}
}
/** used by tests */
public void clearUnsafe() {
lock.writeLock().lock();
try {
bootstrapTokens.clear();
tokenToEndpointMap.clear();
topology.clear();
leavingEndpoints.clear();
pendingRanges.clear();
endpointToHostIdMap.clear();
invalidateCachedRings();
} finally {
lock.writeLock().unlock();
}
}
public Token getSuccessor(Token token) {
List tokens = sortedTokens();
int index = Collections.binarySearch(tokens, token);
assert index >= 0
: token + " not found in " + StringUtils.join(tokenToEndpointMap.keySet(), ", ");
return (Token) ((index == (tokens.size() - 1)) ? tokens.get(0) : tokens.get(index + 1));
}
public void removeEndpoint(InetAddress endpoint) {
assert endpoint != null;
lock.writeLock().lock();
try {
bootstrapTokens.removeValue(endpoint);
tokenToEndpointMap.removeValue(endpoint);
topology.removeEndpoint(endpoint);
leavingEndpoints.remove(endpoint);
endpointToHostIdMap.remove(endpoint);
sortedTokens = sortTokens();
invalidateCachedRings();
} finally {
lock.writeLock().unlock();
}
}
public String toString() {
StringBuilder sb = new StringBuilder();
lock.readLock().lock();
try {
Set<InetAddress> eps = tokenToEndpointMap.inverse().keySet();
if (!eps.isEmpty()) {
sb.append("Normal Tokens:");
sb.append(System.getProperty("line.separator"));
for (InetAddress ep : eps) {
sb.append(ep);
sb.append(":");
sb.append(tokenToEndpointMap.inverse().get(ep));
sb.append(System.getProperty("line.separator"));
}
}
if (!bootstrapTokens.isEmpty()) {
sb.append("Bootstrapping Tokens:");
sb.append(System.getProperty("line.separator"));
for (Map.Entry<Token, InetAddress> entry : bootstrapTokens.entrySet()) {
sb.append(entry.getValue()).append(":").append(entry.getKey());
sb.append(System.getProperty("line.separator"));
}
}
if (!leavingEndpoints.isEmpty()) {
sb.append("Leaving Endpoints:");
sb.append(System.getProperty("line.separator"));
for (InetAddress ep : leavingEndpoints) {
sb.append(ep);
sb.append(System.getProperty("line.separator"));
}
}
if (!pendingRanges.isEmpty()) {
sb.append("Pending Ranges:");
sb.append(System.getProperty("line.separator"));
sb.append(printPendingRanges());
}
} finally {
lock.readLock().unlock();
}
return sb.toString();
}
public InetAddress getEndpoint(Token token) {
lock.readLock().lock();
try {
return tokenToEndpointMap.get(token);
} finally {
lock.readLock().unlock();
}
}
public boolean isMember(InetAddress endpoint) {
assert endpoint != null;
lock.readLock().lock();
try {
return tokenToEndpointMap.inverse().containsKey(endpoint);
} finally {
lock.readLock().unlock();
}
}
public void removeBootstrapTokens(Collection<Token> tokens) {
assert tokens != null && !tokens.isEmpty();
lock.writeLock().lock();
try {
for (Token token : tokens) bootstrapTokens.remove(token);
} finally {
lock.writeLock().unlock();
}
}
/** @return an endpoint to token multimap representation of tokenToEndpointMap (a copy) */
public Multimap<InetAddress, Token> getEndpointToTokenMapForReading() {
lock.readLock().lock();
try {
Multimap<InetAddress, Token> cloned = HashMultimap.create();
for (Map.Entry<Token, InetAddress> entry : tokenToEndpointMap.entrySet())
cloned.put(entry.getValue(), entry.getKey());
return cloned;
} finally {
lock.readLock().unlock();
}
}
public Collection<Token> getTokens(InetAddress endpoint) {
assert endpoint != null;
assert isMember(endpoint); // don't want to return nulls
lock.readLock().lock();
try {
return new ArrayList<Token>(tokenToEndpointMap.inverse().get(endpoint));
} finally {
lock.readLock().unlock();
}
}
/** @return the number of nodes bootstrapping into source's primary range */
public int pendingRangeChanges(InetAddress source) {
int n = 0;
Collection<Range<Token>> sourceRanges = getPrimaryRangesFor(getTokens(source));
lock.readLock().lock();
try {
for (Token token : bootstrapTokens.keySet())
for (Range<Token> range : sourceRanges) if (range.contains(token)) n++;
} finally {
lock.readLock().unlock();
}
return n;
}
public void addBootstrapTokens(Collection<Token> tokens, InetAddress endpoint) {
assert tokens != null && !tokens.isEmpty();
assert endpoint != null;
lock.writeLock().lock();
try {
InetAddress oldEndpoint;
for (Token token : tokens) {
oldEndpoint = bootstrapTokens.get(token);
if (oldEndpoint != null && !oldEndpoint.equals(endpoint))
throw new RuntimeException(
"Bootstrap Token collision between "
+ oldEndpoint
+ " and "
+ endpoint
+ " (token "
+ token);
oldEndpoint = tokenToEndpointMap.get(token);
if (oldEndpoint != null && !oldEndpoint.equals(endpoint))
throw new RuntimeException(
"Bootstrap Token collision between "
+ oldEndpoint
+ " and "
+ endpoint
+ " (token "
+ token);
}
bootstrapTokens.removeValue(endpoint);
for (Token token : tokens) bootstrapTokens.put(token, endpoint);
} finally {
lock.writeLock().unlock();
}
}
private ArrayList<Token> sortTokens() {
return new ArrayList<Token>(tokenToEndpointMap.keySet());
}
