@Override
public String getDataHome(CoreDescriptor cd) throws IOException {
if (hdfsDataDir == null) {
throw new SolrException(
ErrorCode.SERVER_ERROR,
"You must set the "
+ this.getClass().getSimpleName()
+ " param "
+ HDFS_HOME
+ " for relative dataDir paths to work");
}
// by default, we go off the instance directory
String path;
if (cd.getCloudDescriptor() != null) {
path =
URLEncoder.encode(cd.getCloudDescriptor().getCollectionName(), "UTF-8")
+ "/"
+ URLEncoder.encode(cd.getCloudDescriptor().getCoreNodeName(), "UTF-8");
} else {
path = cd.getName();
}
return normalize(
SolrResourceLoader.normalizeDir(
ZkController.trimLeadingAndTrailingSlashes(hdfsDataDir)
+ "/"
+ path
+ "/"
+ cd.getDataDir()));
}
/**
* Creates a new core in a specified instance directory, publishing the core state to the cluster
*
* @param coreName the core name
* @param instancePath the instance directory
* @param parameters the core parameters
* @return the newly created core
*/
public SolrCore create(String coreName, Path instancePath, Map<String, String> parameters) {
CoreDescriptor cd = new CoreDescriptor(this, coreName, instancePath, parameters);
// TODO: There's a race here, isn't there?
if (getAllCoreNames().contains(coreName)) {
log.warn("Creating a core with existing name is not allowed");
// TODO: Shouldn't this be a BAD_REQUEST?
throw new SolrException(
ErrorCode.SERVER_ERROR, "Core with name '" + coreName + "' already exists.");
}
boolean preExisitingZkEntry = false;
try {
if (getZkController() != null) {
if (!Overseer.isLegacy(getZkController().getZkStateReader())) {
if (cd.getCloudDescriptor().getCoreNodeName() == null) {
throw new SolrException(
ErrorCode.SERVER_ERROR,
"non legacy mode coreNodeName missing " + parameters.toString());
}
}
preExisitingZkEntry = getZkController().checkIfCoreNodeNameAlreadyExists(cd);
}
SolrCore core = create(cd, true);
// only write out the descriptor if the core is successfully created
coresLocator.create(this, cd);
return core;
} catch (Exception ex) {
if (isZooKeeperAware() && !preExisitingZkEntry) {
try {
getZkController().unregister(coreName, cd);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
SolrException.log(log, null, e);
} catch (KeeperException e) {
SolrException.log(log, null, e);
}
}
Throwable tc = ex;
Throwable c = null;
do {
tc = tc.getCause();
if (tc != null) {
c = tc;
}
} while (tc != null);
String rootMsg = "";
if (c != null) {
rootMsg = " Caused by: " + c.getMessage();
}
throw new SolrException(
SolrException.ErrorCode.BAD_REQUEST,
"Error CREATEing SolrCore '" + coreName + "': " + ex.getMessage() + rootMsg,
ex);
}
}
