ivandika3 commented on code in PR #9696:
URL: https://github.com/apache/ozone/pull/9696#discussion_r3055084059
##########
hadoop-ozone/freon/src/main/java/org/apache/hadoop/ozone/freon/OmMetadataGenerator.java:
##########
@@ -134,15 +143,28 @@ public class OmMetadataGenerator extends
BaseFreonGenerator
)
private String omServiceID;
+ @Option(
+ names = "--clients",
+ description = "The number of Ozone clients used. If zero or less, " +
+ "will fallback to 1",
Review Comment:
Thanks, updated.
##########
hadoop-ozone/freon/src/main/java/org/apache/hadoop/ozone/freon/OmMetadataGenerator.java:
##########
@@ -464,4 +527,47 @@ enum Operation {
INFO_VOLUME,
MIXED,
}
+
+ private List<String> getOMFollowerNodeIds(OzoneClient ozoneClient) throws
IOException {
+ List<OMRoleInfo> omRoleInfos = ozoneClient.getProxy().getOmRoleInfos();
+ String leaderOMNodeId = null;
+ List<String> followerOMNodeIds = new ArrayList<>();
+ for (OMRoleInfo omRoleInfo : omRoleInfos) {
+ if (omRoleInfo.getServerRole().equals("LEADER")) {
+ if (leaderOMNodeId != null) {
+ // This situation should be rare
+ throw new IllegalStateException("There are more than one leader
detected, please retry again");
+ }
+ leaderOMNodeId = omRoleInfo.getNodeId();
+ } else if (omRoleInfo.getServerRole().equals("FOLLOWER")) {
+ followerOMNodeIds.add(omRoleInfo.getNodeId());
+ }
+ }
+ if (followerOMNodeIds.isEmpty()) {
+ throw new IllegalArgumentException("There is no follower in the OM
service, please retry again");
+ }
+ return followerOMNodeIds;
+ }
+
+ private void changeInitialProxyForFollowerRead(OzoneClient ozoneClient,
String omNodeId) {
+ OzoneManagerProtocolClientSideTranslatorPB ozoneManagerClient =
+ (OzoneManagerProtocolClientSideTranslatorPB)
+ ozoneClient.getProxy().getOzoneManagerClient();
+
+ OmTransport transport = ozoneManagerClient.getTransport();
+
+ if (transport instanceof Hadoop3OmTransport) {
+ Hadoop3OmTransport hadoop3OmTransport =
+ (Hadoop3OmTransport) ozoneManagerClient.getTransport();
Review Comment:
Thanks, updated.
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