@Override
protected void postStart() {
super.postStart();
getDriver().configure();
// TODO implement this using AMQP connection, no external mechanism available
// queueNames.each { String name -> addQueue(name) }
}
@Override
public void disconnectSensors() {
super.disconnectSensors();
if (jmxFeed != null) jmxFeed.stop();
if (jmxMxBeanFeed != null) jmxMxBeanFeed.stop();
if (jmxHelper != null) jmxHelper.terminate();
if (functionFeed != null) functionFeed.stop();
}
@Override
protected void connectSensors() {
super.connectSensors();
connectServiceUpIsRunning();
setBrokerUrl();
if (getEnableManagementPlugin()) {
sensors()
.set(
MANAGEMENT_URL,
format("http://%s:%s/", getAttribute(HOSTNAME), getAttribute(MANAGEMENT_PORT)));
}
}
@Override
public void init() {
super.init();
getMutableEntityType()
.addEffector(
EXECUTE_SCRIPT,
new EffectorBody<String>() {
@Override
public String call(ConfigBag parameters) {
return executeScript((String) parameters.getStringKey("commands"));
}
});
Entities.checkRequiredUrl(this, getCassandraConfigTemplateUrl());
Entities.getRequiredUrlConfig(this, CASSANDRA_RACKDC_CONFIG_TEMPLATE_URL);
connectEnrichers();
}
@Override
public void init() {
super.init();
checkNotNull(
getConfig(HOSTNAME_SENSOR),
"%s requires value for %s",
getClass().getName(),
HOSTNAME_SENSOR);
DynamicGroup entities =
addChild(
EntitySpec.create(DynamicGroup.class)
.configure(DynamicGroup.ENTITY_FILTER, getEntityFilter()));
setAttribute(ENTITIES, entities);
setAttribute(A_RECORDS, ImmutableMap.<String, String>of());
setAttribute(CNAME_RECORDS, ImmutableMultimap.<String, String>of());
setAttribute(PTR_RECORDS, ImmutableMap.<String, String>of());
setAttribute(ADDRESS_MAPPINGS, ImmutableMultimap.<String, String>of());
synchronized (serialMutex) {
setAttribute(SERIAL, System.currentTimeMillis());
}
}
@Override
public void disconnectSensors() {
super.disconnectSensors();
disconnectServiceUpIsRunning();
}
@SuppressWarnings({"unchecked", "rawtypes"})
@Override
protected void connectSensors() {
// "cassandra" isn't really a protocol, but okay for now
setAttribute(
DATASTORE_URL, "cassandra://" + getAttribute(HOSTNAME) + ":" + getAttribute(THRIFT_PORT));
super.connectSensors();
jmxHelper = new JmxHelper(this);
boolean retrieveUsageMetrics = getConfig(RETRIEVE_USAGE_METRICS);
jmxFeed =
JmxFeed.builder()
.entity(this)
.period(3000, TimeUnit.MILLISECONDS)
.helper(jmxHelper)
.pollAttribute(
new JmxAttributePollConfig<Boolean>(SERVICE_UP_JMX)
.objectName(storageServiceMBean)
.attributeName("Initialized")
.onSuccess(Functions.forPredicate(Predicates.notNull()))
.onException(Functions.constant(false))
.suppressDuplicates(true))
.pollAttribute(
new JmxAttributePollConfig<Set<BigInteger>>(TOKENS)
.objectName(storageServiceMBean)
.attributeName("TokenToEndpointMap")
.onSuccess(
new Function<Object, Set<BigInteger>>() {
@Override
public Set<BigInteger> apply(@Nullable Object arg) {
Map input = (Map) arg;
if (input == null || input.isEmpty()) return null;
// FIXME does not work on aws-ec2, uses RFC1918 address
Predicate<String> self =
Predicates.in(
ImmutableList.of(
getAttribute(HOSTNAME),
getAttribute(ADDRESS),
getAttribute(SUBNET_ADDRESS),
getAttribute(SUBNET_HOSTNAME)));
Set<String> tokens = Maps.filterValues(input, self).keySet();
Set<BigInteger> result = Sets.newLinkedHashSet();
for (String token : tokens) {
result.add(new BigInteger(token));
}
return result;
}
})
.onException(Functions.<Set<BigInteger>>constant(null))
.suppressDuplicates(true))
.pollAttribute(
new JmxAttributePollConfig<BigInteger>(TOKEN)
.objectName(storageServiceMBean)
.attributeName("TokenToEndpointMap")
.onSuccess(
new Function<Object, BigInteger>() {
@Override
public BigInteger apply(@Nullable Object arg) {
Map input = (Map) arg;
// TODO remove duplication from setting TOKENS
if (input == null || input.isEmpty()) return null;
// FIXME does not work on aws-ec2, uses RFC1918 address
Predicate<String> self =
Predicates.in(
ImmutableList.of(
getAttribute(HOSTNAME),
getAttribute(ADDRESS),
getAttribute(SUBNET_ADDRESS),
getAttribute(SUBNET_HOSTNAME)));
Set<String> tokens = Maps.filterValues(input, self).keySet();
String token = Iterables.getFirst(tokens, null);
return (token != null) ? new BigInteger(token) : null;
}
})
.onException(Functions.<BigInteger>constant(null))
.suppressDuplicates(true))
.pollOperation(
new JmxOperationPollConfig<String>(DATACENTER_NAME)
.period(60, TimeUnit.SECONDS)
.objectName(snitchMBean)
.operationName("getDatacenter")
.operationParams(ImmutableList.of(getBroadcastAddress()))
.onException(Functions.<String>constant(null))
.suppressDuplicates(true))
.pollOperation(
new JmxOperationPollConfig<String>(RACK_NAME)
.period(60, TimeUnit.SECONDS)
.objectName(snitchMBean)
.operationName("getRack")
.operationParams(ImmutableList.of(getBroadcastAddress()))
.onException(Functions.<String>constant(null))
.suppressDuplicates(true))
.pollAttribute(
new JmxAttributePollConfig<Integer>(PEERS)
.objectName(storageServiceMBean)
.attributeName("TokenToEndpointMap")
.onSuccess(
new Function<Object, Integer>() {
@Override
public Integer apply(@Nullable Object arg) {
Map input = (Map) arg;
if (input == null || input.isEmpty()) return 0;
return input.size();
}
})
.onException(Functions.constant(-1)))
.pollAttribute(
new JmxAttributePollConfig<Integer>(LIVE_NODE_COUNT)
.objectName(storageServiceMBean)
.attributeName("LiveNodes")
.onSuccess(
new Function<Object, Integer>() {
@Override
public Integer apply(@Nullable Object arg) {
List input = (List) arg;
if (input == null || input.isEmpty()) return 0;
return input.size();
}
})
.onException(Functions.constant(-1)))
.pollAttribute(
new JmxAttributePollConfig<Integer>(READ_ACTIVE)
.objectName(readStageMBean)
.attributeName("ActiveCount")
.onException(Functions.constant((Integer) null))
.enabled(retrieveUsageMetrics))
.pollAttribute(
new JmxAttributePollConfig<Long>(READ_PENDING)
.objectName(readStageMBean)
.attributeName("PendingTasks")
.onException(Functions.constant((Long) null))
.enabled(retrieveUsageMetrics))
.pollAttribute(
new JmxAttributePollConfig<Long>(READ_COMPLETED)
.objectName(readStageMBean)
.attributeName("CompletedTasks")
.onException(Functions.constant((Long) null))
.enabled(retrieveUsageMetrics))
.pollAttribute(
new JmxAttributePollConfig<Integer>(WRITE_ACTIVE)
.objectName(mutationStageMBean)
.attributeName("ActiveCount")
.onException(Functions.constant((Integer) null))
.enabled(retrieveUsageMetrics))
.pollAttribute(
new JmxAttributePollConfig<Long>(WRITE_PENDING)
.objectName(mutationStageMBean)
.attributeName("PendingTasks")
.onException(Functions.constant((Long) null))
.enabled(retrieveUsageMetrics))
.pollAttribute(
new JmxAttributePollConfig<Long>(WRITE_COMPLETED)
.objectName(mutationStageMBean)
.attributeName("CompletedTasks")
.onException(Functions.constant((Long) null))
.enabled(retrieveUsageMetrics))
.build();
functionFeed =
FunctionFeed.builder()
.entity(this)
.period(3000, TimeUnit.MILLISECONDS)
.poll(
new FunctionPollConfig<Long, Long>(THRIFT_PORT_LATENCY)
.onException(Functions.constant((Long) null))
.callable(
new Callable<Long>() {
public Long call() {
try {
long start = System.currentTimeMillis();
Socket s =
new Socket(getAttribute(Attributes.HOSTNAME), getThriftPort());
s.close();
long latency = System.currentTimeMillis() - start;
computeServiceUp();
return latency;
} catch (Exception e) {
if (log.isDebugEnabled())
log.debug("Cassandra thrift port poll failure: " + e);
setAttribute(SERVICE_UP, false);
return null;
}
}
public void computeServiceUp() {
// this will wait an additional poll period after thrift port is up,
// as the caller will not have set yet, but that will help ensure it is
// really healthy!
setAttribute(
SERVICE_UP,
getAttribute(THRIFT_PORT_LATENCY) != null
&& getAttribute(THRIFT_PORT_LATENCY) >= 0
&& Boolean.TRUE.equals(getAttribute(SERVICE_UP_JMX)));
}
})
.enabled(retrieveUsageMetrics))
.build();
jmxMxBeanFeed = JavaAppUtils.connectMXBeanSensors(this);
}
@Override
protected void preStart() {
super.preStart();
setCloudPreferredSensorNames();
}