/** Swaps two SolrCore descriptors. */
public void swap(String n0, String n1) {
if (n0 == null || n1 == null) {
throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "Can not swap unnamed cores.");
}
solrCores.swap(n0, n1);
coresLocator.swap(this, solrCores.getCoreDescriptor(n0), solrCores.getCoreDescriptor(n1));
log.info("swapped: " + n0 + " with " + n1);
}
/**
* Unload a core from this container, optionally removing the core's data and configuration
*
* @param name the name of the core to unload
* @param deleteIndexDir if true, delete the core's index on close
* @param deleteDataDir if true, delete the core's data directory on close
* @param deleteInstanceDir if true, delete the core's instance directory on close
*/
public void unload(
String name, boolean deleteIndexDir, boolean deleteDataDir, boolean deleteInstanceDir) {
if (name != null) {
// check for core-init errors first
CoreLoadFailure loadFailure = coreInitFailures.remove(name);
if (loadFailure != null) {
// getting the index directory requires opening a DirectoryFactory with a SolrConfig, etc,
// which we may not be able to do because of the init error. So we just go with what we
// can glean from the CoreDescriptor - datadir and instancedir
SolrCore.deleteUnloadedCore(loadFailure.cd, deleteDataDir, deleteInstanceDir);
return;
}
}
CoreDescriptor cd = solrCores.getCoreDescriptor(name);
if (cd == null)
throw new SolrException(
ErrorCode.BAD_REQUEST, "Cannot unload non-existent core [" + name + "]");
boolean close = solrCores.isLoadedNotPendingClose(name);
SolrCore core = solrCores.remove(name);
coresLocator.delete(this, cd);
if (core == null) {
// transient core
SolrCore.deleteUnloadedCore(cd, deleteDataDir, deleteInstanceDir);
return;
}
if (zkSys.getZkController() != null) {
// cancel recovery in cloud mode
core.getSolrCoreState().cancelRecovery();
}
core.unloadOnClose(deleteIndexDir, deleteDataDir, deleteInstanceDir);
if (close) core.closeAndWait();
if (zkSys.getZkController() != null) {
try {
zkSys.getZkController().unregister(name, cd);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
throw new SolrException(
ErrorCode.SERVER_ERROR,
"Interrupted while unregistering core [" + name + "] from cloud state");
} catch (KeeperException e) {
throw new SolrException(
ErrorCode.SERVER_ERROR, "Error unregistering core [" + name + "] from cloud state", e);
}
}
}
