ptlrs commented on code in PR #7495:
URL: https://github.com/apache/ozone/pull/7495#discussion_r1914386689
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hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/helpers/ContainerUtils.java:
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@@ -174,20 +174,25 @@ public static synchronized DatanodeDetails
readDatanodeDetailsFrom(File path)
if (!path.exists()) {
throw new IOException("Datanode ID file not found.");
}
+ DatanodeDetails datanodeDetails;
try {
- return DatanodeIdYaml.readDatanodeIdFile(path);
+ datanodeDetails = DatanodeIdYaml.readDatanodeIdFile(path);
} catch (IOException e) {
LOG.warn("Error loading DatanodeDetails yaml from {}",
path.getAbsolutePath(), e);
// Try to load as protobuf before giving up
try (FileInputStream in = new FileInputStream(path)) {
- return DatanodeDetails.getFromProtoBuf(
+ datanodeDetails = DatanodeDetails.getFromProtoBuf(
HddsProtos.DatanodeDetailsProto.parseFrom(in));
} catch (IOException io) {
throw new IOException("Failed to parse DatanodeDetails from "
+ path.getAbsolutePath(), io);
}
}
+
+ datanodeDetails.validateDatanodeIpAddress();
Review Comment:
Hi @adoroszlai, this PR is concerned with the case where you rebuild the
DatanodeDetails object based on the information saved prior in a file. When we
deserialize the contents of the file into DatanodeDetails, the IP address could
have changed and the persisted IP address may no longer be valid (ex. the
datanode may have been re-started on a new machine). So that is the reason for
validating the IP address when we read the file.
I agree there is no need to validate the IP address if we are building
DatanodeDetails object without any serialization/deserialization.
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