Журналы можно найти с помощью LogCliHelpers по идентификатору приложения после его завершения:
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext;
import org.apache.hadoop.yarn.client.api.YarnClientApplication;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.logaggregation.LogCLIHelpers;
import java.io.IOException;
import java.io.PrintStream;
public static void getLogs(YarnConfiguration conf, YarnClientApplication app) throws IOException, YarnException {
ApplicationSubmissionContext appContext =
app.getApplicationSubmissionContext();
ApplicationId appId = appContext.getApplicationId();
LogCLIHelpers logCLIHelpers = new LogCLIHelpers();
logCLIHelpers.setConf(conf);
FileSystem fs = FileSystem.get(conf);
Path logFile = new Path("/path/to/log/file.log");
fs.create(logFile, false);
try (PrintStream printStream = new PrintStream(logFile.toString())) {
logCLIHelpers.dumpAllContainersLogs(appId, UserGroupInformation.getCurrentUser().getShortUserName(), printStream);
}
}