maobaolong opened a new pull request, #2328:
URL: https://github.com/apache/incubator-uniffle/pull/2328
### What changes were proposed in this pull request?
Close coordinator client in time.
### Why are the changes needed?
Grpc retry will throw exception for all the time.
```
[16:44:57:437] [grpc-default-executor-0] WARN
org.apache.uniffle.shaded.io.grpc.internal.ManagedChannelImpl.handleErrorInSyncContext:1866
- [Channel<1>: (a:10000)] Failed to resolve name.
status=Status{code=UNAVAILABLE, description=Unable to resolve host a,
cause=java.lang.RuntimeException: java.net.UnknownHostException: a: 未知的名称或服务
at
org.apache.uniffle.shaded.io.grpc.internal.DnsNameResolver.resolveAddresses(DnsNameResolver.java:223)
at
org.apache.uniffle.shaded.io.grpc.internal.DnsNameResolver.doResolve(DnsNameResolver.java:282)
at
org.apache.uniffle.shaded.io.grpc.internal.DnsNameResolver$Resolve.run(DnsNameResolver.java:318)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
Caused by: java.net.UnknownHostException: a: 未知的名称或服务
at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method)
at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:867)
at
java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1302)
at java.net.InetAddress$NameServiceAddresses.get(InetAddress.java:815)
at java.net.InetAddress.getAllByName0(InetAddress.java:1291)
at java.net.InetAddress.getAllByName(InetAddress.java:1144)
at java.net.InetAddress.getAllByName(InetAddress.java:1065)
at
org.apache.uniffle.shaded.io.grpc.internal.DnsNameResolver$JdkAddressResolver.resolveAddress(DnsNameResolver.java:632)
at
org.apache.uniffle.shaded.io.grpc.internal.DnsNameResolver.resolveAddresses(DnsNameResolver.java:219)
... 5 more
```
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Existing UTs.
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