/**
* This is a validation of the application configuration on the AM. Here is where things like the
* existence of keytabs and other not-seen-client-side properties can be tested, before the actual
* process is spawned.
*
* @param instanceDefinition clusterSpecification
* @param confDir configuration directory
* @param secure flag to indicate that secure mode checks must exist
* @throws IOException IO problemsn
* @throws SliderException any failure
*/
@Override
public void validateApplicationConfiguration(
AggregateConf instanceDefinition, File confDir, boolean secure)
throws IOException, SliderException {
String siteXMLFilename = SITE_XML;
File siteXML = new File(confDir, siteXMLFilename);
if (!siteXML.exists()) {
throw new BadCommandArgumentsException(
"Configuration directory %s doesn't contain %s - listing is %s",
confDir, siteXMLFilename, SliderUtils.listDir(confDir));
}
// now read it in
siteConf = ConfigHelper.loadConfFromFile(siteXML);
// look in the site spec to see that it is OK
clientProvider.validateHBaseSiteXML(siteConf, secure, siteXMLFilename);
if (secure) {
// secure mode: take a look at the keytab of master and RS
SliderUtils.verifyKeytabExists(siteConf, HBaseConfigFileOptions.KEY_MASTER_KERBEROS_KEYTAB);
SliderUtils.verifyKeytabExists(
siteConf, HBaseConfigFileOptions.KEY_REGIONSERVER_KERBEROS_KEYTAB);
}
}
@Override
public void prepareAMAndConfigForLaunch(
SliderFileSystem fileSystem,
Configuration serviceConf,
AbstractLauncher launcher,
AggregateConf instanceDescription,
Path snapshotConfDirPath,
Path generatedConfDirPath,
Configuration clientConfExtras,
String libdir,
Path tempPath,
boolean miniClusterTestRun)
throws IOException, SliderException {
// load in the template site config
log.debug("Loading template configuration from {}", snapshotConfDirPath);
Configuration siteConf =
ConfigHelper.loadTemplateConfiguration(
serviceConf,
snapshotConfDirPath,
AccumuloKeys.SITE_XML,
AccumuloKeys.SITE_XML_RESOURCE);
Map<String, LocalResource> providerResources;
providerResources =
fileSystem.submitDirectory(generatedConfDirPath, SliderKeys.PROPAGATED_CONF_DIR_NAME);
ProviderUtils.addProviderJar(
providerResources,
this,
"slider-accumulo-provider.jar",
fileSystem,
tempPath,
libdir,
miniClusterTestRun);
addAccumuloDependencyJars(providerResources, fileSystem, libdir, tempPath);
launcher.addLocalResources(providerResources);
// construct the cluster configuration values
ConfTreeOperations appconf = instanceDescription.getAppConfOperations();
Map<String, String> clusterConfMap = buildSiteConfFromInstance(instanceDescription);
// merge them
ConfigHelper.addConfigMap(siteConf, clusterConfMap.entrySet(), "Accumulo Provider");
// now, if there is an extra client conf, merge it in too
if (clientConfExtras != null) {
ConfigHelper.mergeConfigurations(siteConf, clientConfExtras, "Slider Client");
}
if (log.isDebugEnabled()) {
log.debug("Merged Configuration");
ConfigHelper.dumpConf(siteConf);
}
Path sitePath =
ConfigHelper.saveConfig(serviceConf, siteConf, generatedConfDirPath, AccumuloKeys.SITE_XML);
log.debug("Saving the config to {}", sitePath);
launcher.submitDirectory(generatedConfDirPath, SliderKeys.PROPAGATED_CONF_DIR_NAME);
}