xiaoyuyao commented on a change in pull request #1489: HDDS-2019. Handle Set
DtService of token in S3Gateway for OM HA.
URL: https://github.com/apache/hadoop/pull/1489#discussion_r329748308
##########
File path:
hadoop-ozone/s3gateway/src/main/java/org/apache/hadoop/ozone/s3/OzoneServiceProvider.java
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@@ -20,33 +20,75 @@
import org.apache.hadoop.hdds.conf.OzoneConfiguration;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.ozone.OmUtils;
+import org.apache.hadoop.ozone.s3.util.OzoneS3Util;
import org.apache.hadoop.security.SecurityUtil;
import javax.annotation.PostConstruct;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.inject.Produces;
import javax.inject.Inject;
+
+import java.util.Arrays;
+import java.util.Collection;
+
+import static org.apache.hadoop.ozone.om.OMConfigKeys.OZONE_OM_NODES_KEY;
+import static org.apache.hadoop.ozone.om.OMConfigKeys.OZONE_OM_SERVICE_IDS_KEY;
+
/**
* This class creates the OM service .
*/
@ApplicationScoped
public class OzoneServiceProvider {
- private Text omServiceAdd;
+ private Text omServiceAddr;
+
+ private String omserviceID;
@Inject
private OzoneConfiguration conf;
@PostConstruct
public void init() {
- omServiceAdd = SecurityUtil.buildTokenService(OmUtils.
- getOmAddressForClients(conf));
+ Collection<String> serviceIdList =
+ conf.getTrimmedStringCollection(OZONE_OM_SERVICE_IDS_KEY);
+ if (serviceIdList.size() == 0) {
+ // Non-HA cluster
+ omServiceAddr = SecurityUtil.buildTokenService(OmUtils.
+ getOmAddressForClients(conf));
+ } else {
+ // HA cluster.
+ //For now if multiple service id's are configured we throw exception.
Review comment:
This is very similar to what HDFS HA does. Since OM support service
discovery, can we get the internal service id via service discovery?
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