/**
* Removes the containers from the cluster.
*
* @param containers
*/
@Override
public void removeFromCluster(List<String> containers, CreateEnsembleOptions options) {
try {
List<String> current = getEnsembleContainers();
current.removeAll(containers);
createCluster(current, options);
} catch (Exception e) {
throw new FabricException(
"Unable to remove containers to fabric ensemble: " + e.getMessage(), e);
}
}
public void createCluster(List<String> containers, CreateEnsembleOptions options) {
try {
if (options.getZookeeperPassword() != null) {
// do nothing
} else if (System.getProperties().containsKey(SystemProperties.ZOOKEEPER_PASSWORD)) {
options.setZookeeperPassword(System.getProperty(SystemProperties.ZOOKEEPER_PASSWORD));
} else {
options.setZookeeperPassword(ZooKeeperRetriableUtils.generatePassword());
}
if (containers == null || containers.size() == 2) {
throw new IllegalArgumentException(
"One or at least 3 containers must be used to create a zookeeper ensemble");
}
Configuration config =
configurationAdmin.getConfiguration("org.fusesource.fabric.zookeeper", null);
String zooKeeperUrl =
config != null && config.getProperties() != null
? (String) config.getProperties().get("zookeeper.url")
: null;
if (zooKeeperUrl == null) {
if (containers.size() != 1
|| !containers.get(0).equals(System.getProperty(SystemProperties.KARAF_NAME))) {
throw new FabricException(
"The first zookeeper cluster must be configured on this container only.");
}
createLocalServer(2181, options);
return;
}
String version = getDataStore().getDefaultVersion();
for (String container : containers) {
Container c = fabricService.getContainer(container);
if (ZooKeeperRetriableUtils.exists(zooKeeper, ZkPath.CONTAINER_ALIVE.getPath(container))
== null) {
throw new FabricException("The container " + container + " is not alive");
}
String containerVersion =
zooKeeper.getStringData(ZkPath.CONFIG_CONTAINER.getPath(container));
if (!version.equals(containerVersion)) {
throw new FabricException(
"The container " + container + " is not using the default-version:" + version);
}
}
// Find used zookeeper ports
Map<String, List<Integer>> usedPorts = new HashMap<String, List<Integer>>();
String oldClusterId =
ZooKeeperRetriableUtils.get(zooKeeper, ZkPath.CONFIG_ENSEMBLES.getPath());
if (oldClusterId != null) {
String profile = "fabric-ensemble-" + oldClusterId;
String pid = "org.fusesource.fabric.zookeeper.server-" + oldClusterId;
Map<String, String> p = getDataStore().getConfiguration(version, profile, pid);
if (p == null) {
throw new FabricException(
"Failed to find old cluster configuration for ID " + oldClusterId);
}
for (Object n : p.keySet()) {
String node = (String) n;
if (node.startsWith("server.")) {
String data =
ZooKeeperRetriableUtils.getSubstitutedPath(
zooKeeper,
ZkPath.CONFIG_ENSEMBLE_PROFILE.getPath("fabric-ensemble-" + oldClusterId)
+ "/org.fusesource.fabric.zookeeper.server-"
+ oldClusterId
+ ".properties#"
+ node);
addUsedPorts(usedPorts, data);
}
}
Map<String, String> zkConfig =
getDataStore().getConfiguration(version, "default", "org.fusesource.fabric.zookeeper");
if (zkConfig == null) {
throw new FabricException(
"Failed to find old zookeeper configuration in default profile");
}
String datas =
ZooKeeperRetriableUtils.getSubstitutedPath(zooKeeper, zkConfig.get("zookeeper.url"));
for (String data : datas.split(",")) {
addUsedPorts(usedPorts, data);
}
}
String newClusterId;
if (oldClusterId == null) {
newClusterId = "0000";
} else {
newClusterId = new DecimalFormat("0000").format(Integer.parseInt(oldClusterId) + 1);
}
// create new ensemble
String ensembleProfile =
getDataStore().getProfile(version, "fabric-ensemble-" + newClusterId, true);
getDataStore().setProfileAttribute(version, ensembleProfile, "abstract", "true");
getDataStore().setProfileAttribute(version, ensembleProfile, "hidden", "true");
Properties ensembleProperties = new Properties();
ensembleProperties.put("tickTime", "2000");
ensembleProperties.put("initLimit", "10");
ensembleProperties.put("syncLimit", "5");
ensembleProperties.put("dataDir", "data/zookeeper/" + newClusterId);
int index = 1;
String connectionUrl = "";
String realConnectionUrl = "";
String containerList = "";
for (String container : containers) {
String ip =
ZooKeeperRetriableUtils.getSubstitutedPath(
zooKeeper, ZkPath.CONTAINER_IP.getPath(container));
String minimumPort = String.valueOf(Ports.MIN_PORT_NUMBER);
String maximumPort = String.valueOf(Ports.MAX_PORT_NUMBER);
if (zooKeeper.exists(ZkPath.CONTAINER_PORT_MIN.getPath(container)) != null) {
minimumPort =
ZooKeeperRetriableUtils.getSubstitutedPath(
zooKeeper, ZkPath.CONTAINER_PORT_MIN.getPath(container));
}
if (zooKeeper.exists(ZkPath.CONTAINER_PORT_MAX.getPath(container)) != null) {
maximumPort =
ZooKeeperRetriableUtils.getSubstitutedPath(
zooKeeper, ZkPath.CONTAINER_PORT_MAX.getPath(container));
}
String ensembleMemberPid =
"org.fusesource.fabric.zookeeper.server-" + newClusterId + ".properties";
Properties ensembleMemberProperties = new Properties();
// configure this server in the ensemble
String ensembleMemberProfile =
getDataStore()
.getProfile(
version,
"fabric-ensemble-" + newClusterId + "-" + Integer.toString(index),
true);
getDataStore().setProfileAttribute(version, ensembleMemberProfile, "hidden", "true");
getDataStore()
.setProfileAttribute(version, ensembleMemberProfile, "parents", ensembleProfile);
String port1 =
Integer.toString(
findPort(
usedPorts,
ip,
mapPortToRange(Ports.DEFAULT_ZOOKEEPER_SERVER_PORT, minimumPort, maximumPort)));
if (containers.size() > 1) {
String port2 =
Integer.toString(
findPort(
usedPorts,
ip,
mapPortToRange(Ports.DEFAULT_ZOOKEEPER_PEER_PORT, minimumPort, maximumPort)));
String port3 =
Integer.toString(
findPort(
usedPorts,
ip,
mapPortToRange(
Ports.DEFAULT_ZOOKEEPER_ELECTION_PORT, minimumPort, maximumPort)));
ensembleProperties.put(
"server." + Integer.toString(index),
"${zk:" + container + "/ip}:" + port2 + ":" + port3);
ensembleMemberProperties.put("server.id", Integer.toString(index));
}
ensembleMemberProperties.put("clientPort", port1);
getDataStore()
.setFileConfiguration(
version,
ensembleMemberProfile,
ensembleMemberPid,
DataStoreHelpers.toBytes(ensembleMemberProperties));
// add this container to the ensemble
ZooKeeperRetriableUtils.add(
zooKeeper,
"/fabric/configs/versions/" + version + "/containers/" + container,
"fabric-ensemble-" + newClusterId + "-" + Integer.toString(index));
if (connectionUrl.length() > 0) {
connectionUrl += ",";
realConnectionUrl += ",";
}
connectionUrl += "${zk:" + container + "/ip}:" + port1;
realConnectionUrl += ip + ":" + port1;
if (containerList.length() > 0) {
containerList += ",";
}
containerList += container;
index++;
}
String ensembleConfigName = "org.fusesource.fabric.zookeeper.server-" + newClusterId;
getDataStore()
.setFileConfiguration(
version,
ensembleProfile,
ensembleConfigName,
DataStoreHelpers.toBytes(ensembleProperties));
if (oldClusterId != null) {
Properties properties =
DataStoreHelpers.toProperties(
getDataStore()
.getConfiguration(version, "default", "org.fusesource.fabric.zookeeper"));
properties.put(
"zookeeper.url",
ZooKeeperRetriableUtils.getSubstitutedData(zooKeeper, realConnectionUrl));
properties.put("zookeeper.password", options.getZookeeperPassword());
OsgiZkClient dst = new OsgiZkClient();
dst.updated(properties);
try {
dst.waitForConnected(new Timespan(30, Timespan.TimeUnit.SECOND));
ZooKeeperRetriableUtils.copy(zooKeeper, dst, "/fabric/registry");
ZooKeeperRetriableUtils.copy(zooKeeper, dst, "/fabric/authentication");
ZooKeeperRetriableUtils.copy(zooKeeper, dst, "/fabric/configs");
// Make sure that the alive zndoe is deleted for each container.
for (String container : containers) {
ZookeeperCommandBuilder.delete("/fabric/registry/containers/alive/" + container)
.execute(dst);
}
ZooKeeperRetriableUtils.set(dst, ZkPath.CONFIG_ENSEMBLES.getPath(), newClusterId);
ZooKeeperRetriableUtils.set(
dst, ZkPath.CONFIG_ENSEMBLE.getPath(newClusterId), containerList);
ZooKeeperRetriableUtils.set(dst, ZkPath.CONFIG_ENSEMBLE_URL.getPath(), connectionUrl);
ZooKeeperRetriableUtils.set(
dst, ZkPath.CONFIG_ENSEMBLE_PASSWORD.getPath(), options.getZookeeperPassword());
ZooKeeperRetriableUtils.set(
zooKeeper, ZkPath.CONFIG_ENSEMBLE_URL.getPath(), connectionUrl);
ZooKeeperRetriableUtils.set(
zooKeeper, ZkPath.CONFIG_ENSEMBLE_PASSWORD.getPath(), options.getZookeeperPassword());
for (String v : zooKeeper.getChildren("/fabric/configs/versions/")) {
for (String container :
dst.getChildren("/fabric/configs/versions/" + v + "/containers")) {
ZooKeeperRetriableUtils.remove(
dst,
"/fabric/configs/versions/" + v + "/containers/" + container,
"fabric-ensemble-" + oldClusterId + "-.*");
}
setConfigProperty(
dst,
"/fabric/configs/versions/"
+ v
+ "/profiles/default/org.fusesource.fabric.zookeeper.properties",
"zookeeper.password",
"${zk:" + ZkPath.CONFIG_ENSEMBLE_PASSWORD.getPath() + "}");
setConfigProperty(
dst,
"/fabric/configs/versions/"
+ v
+ "/profiles/default/org.fusesource.fabric.zookeeper.properties",
"zookeeper.url",
"${zk:" + ZkPath.CONFIG_ENSEMBLE_URL.getPath() + "}");
setConfigProperty(
zooKeeper,
"/fabric/configs/versions/"
+ v
+ "/profiles/default/org.fusesource.fabric.zookeeper.properties",
"zookeeper.password",
"${zk:" + ZkPath.CONFIG_ENSEMBLE_PASSWORD.getPath() + "}");
setConfigProperty(
zooKeeper,
"/fabric/configs/versions/"
+ v
+ "/profiles/default/org.fusesource.fabric.zookeeper.properties",
"zookeeper.url",
"${zk:" + ZkPath.CONFIG_ENSEMBLE_URL.getPath() + "}");
}
} finally {
dst.close();
}
} else {
setConfigProperty(
zooKeeper,
"/fabric/configs/versions/"
+ version
+ "/profiles/default/org.fusesource.fabric.zookeeper.properties",
"zookeeper.password",
"${zk:" + ZkPath.CONFIG_ENSEMBLE_PASSWORD.getPath() + "}");
setConfigProperty(
zooKeeper,
"/fabric/configs/versions/"
+ version
+ "/profiles/default/org.fusesource.fabric.zookeeper.properties",
"zookeeper.url",
"${zk:" + ZkPath.CONFIG_ENSEMBLE_URL.getPath() + "}");
}
} catch (Exception e) {
throw new FabricException("Unable to create zookeeper quorum: " + e.getMessage(), e);
}
}