keith-turner commented on code in PR #4996:
URL: https://github.com/apache/accumulo/pull/4996#discussion_r1819345799
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server/manager/src/main/java/org/apache/accumulo/manager/upgrade/Upgrader11to12.java:
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@@ -117,6 +122,28 @@ public void upgradeZookeeper(@NonNull ServerContext
context) {
zrw.overwritePersistentData(rootBase, rtm.toJson().getBytes(UTF_8),
stat.getVersion());
log.info("Root metadata in ZooKeeper after upgrade: {}", rtm.toJson());
}
+
+ String zPath = Constants.ZROOT + "/" + context.getInstanceID() +
Constants.ZNAMESPACES;
+ byte[] existingMapData = zrw.getData(zPath);
+ List<String> namespaceIdList = zrw.getChildren(zPath);
+ Map<String,String> namespaceMap = null;
+ if (existingMapData != null) {
+ namespaceMap = NamespaceMapping.deserialize(existingMapData);
+ }
+ if (namespaceMap == null || namespaceMap.isEmpty()) {
Review Comment:
Seems like an empty map would never be expected here, so should probably not
let it silently pass.
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