/**
* Recreates a SolrCore. While the new core is loading, requests will continue to be dispatched to
* and processed by the old core
*
* @param name the name of the SolrCore to reload
*/
public void reload(String name) {
SolrCore core = solrCores.getCoreFromAnyList(name, false);
if (core == null)
throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "No such core: " + name);
CoreDescriptor cd = core.getCoreDescriptor();
try {
solrCores.waitAddPendingCoreOps(name);
ConfigSet coreConfig = coreConfigService.getConfig(cd);
log.info(
"Reloading SolrCore '{}' using configuration from {}",
cd.getName(),
coreConfig.getName());
SolrCore newCore = core.reload(coreConfig);
registerCore(name, newCore, false);
} catch (SolrCoreState.CoreIsClosedException e) {
throw e;
} catch (Exception e) {
coreInitFailures.put(cd.getName(), new CoreLoadFailure(cd, e));
throw new SolrException(
ErrorCode.SERVER_ERROR, "Unable to reload core [" + cd.getName() + "]", e);
} finally {
solrCores.removeFromPendingOps(name);
}
}
/**
* Creates a new core based on a CoreDescriptor.
*
* @param dcore a core descriptor
* @param publishState publish core state to the cluster if true
* @return the newly created core
*/
private SolrCore create(CoreDescriptor dcore, boolean publishState) {
if (isShutDown) {
throw new SolrException(ErrorCode.SERVICE_UNAVAILABLE, "Solr has been shutdown.");
}
SolrCore core = null;
try {
MDCLoggingContext.setCore(core);
SolrIdentifierValidator.validateCoreName(dcore.getName());
if (zkSys.getZkController() != null) {
zkSys.getZkController().preRegister(dcore);
}
ConfigSet coreConfig = coreConfigService.getConfig(dcore);
log.info(
"Creating SolrCore '{}' using configuration from {}",
dcore.getName(),
coreConfig.getName());
core = new SolrCore(dcore, coreConfig);
// always kick off recovery if we are in non-Cloud mode
if (!isZooKeeperAware() && core.getUpdateHandler().getUpdateLog() != null) {
core.getUpdateHandler().getUpdateLog().recoverFromLog();
}
registerCore(dcore.getName(), core, publishState);
return core;
} catch (Exception e) {
coreInitFailures.put(dcore.getName(), new CoreLoadFailure(dcore, e));
log.error("Error creating core [{}]: {}", dcore.getName(), e.getMessage(), e);
final SolrException solrException =
new SolrException(
ErrorCode.SERVER_ERROR, "Unable to create core [" + dcore.getName() + "]", e);
if (core != null && !core.isClosed()) IOUtils.closeQuietly(core);
throw solrException;
} catch (Throwable t) {
SolrException e =
new SolrException(
ErrorCode.SERVER_ERROR,
"JVM Error creating core [" + dcore.getName() + "]: " + t.getMessage(),
t);
log.error("Error creating core [{}]: {}", dcore.getName(), t.getMessage(), t);
coreInitFailures.put(dcore.getName(), new CoreLoadFailure(dcore, e));
if (core != null && !core.isClosed()) IOUtils.closeQuietly(core);
throw t;
} finally {
MDCLoggingContext.clear();
}
}
