wu-sheng commented on a change in pull request #7398:
URL: https://github.com/apache/skywalking/pull/7398#discussion_r680505303
##########
File path: CHANGES.md
##########
@@ -8,7 +8,7 @@ Release Notes.
#### Project
#### Java Agent
-
+* Support Multiple DNS period resolving mechanism
#### OAP-Backend
Review comment:
```suggestion
* Support Multiple DNS period resolving mechanism
#### OAP-Backend
```
##########
File path:
apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/remote/GRPCChannelManager.java
##########
@@ -99,20 +101,28 @@ public void shutdown() {
public void run() {
LOGGER.debug("Selected collector grpc service running, reconnect:{}.",
reconnect);
if (IS_RESOLVE_DNS_PERIODICALLY && reconnect) {
- String backendService =
Config.Collector.BACKEND_SERVICE.split(",")[0];
- try {
- String[] domainAndPort = backendService.split(":");
-
- List<String> newGrpcServers = Arrays
- .stream(InetAddress.getAllByName(domainAndPort[0]))
- .map(InetAddress::getHostAddress)
- .map(ip -> String.format("%s:%s", ip,
domainAndPort[1]))
- .collect(Collectors.toList());
-
- grpcServers = newGrpcServers;
- } catch (Throwable t) {
- LOGGER.error(t, "Failed to resolve {} of backend service.",
backendService);
- }
+ grpcServers =
Arrays.stream(Config.Collector.BACKEND_SERVICE.split(","))
+ .filter(StringUtil::isNotBlank)
+ .map(eachBackendService -> eachBackendService.split(":"))
+ .filter(domainPortPairs -> {
+ if (domainPortPairs.length < 2) {
+ LOGGER.debug(new IllegalArgumentException(),
"Service address [{}] format error", domainPortPairs[0]);
Review comment:
Don't log debug with a new exception, this is pointless.
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