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0x1306e6d / tollgate

An API gateway for your microservice.
MIT License
6 stars 1 forks source link

Response 500 Internal Server Error when failed to resolve host #31

Closed 0x1306e6d closed 4 years ago

0x1306e6d commented 4 years ago

Should response 502 Bad Gateway rather than 500 Internal Server Error.

Stacktrace:

com.linecorp.armeria.client.UnprocessedRequestException: java.net.UnknownHostException: failed to resolve 'berry' after 4 queries 
    at com.linecorp.armeria.client.UnprocessedRequestException.of(UnprocessedRequestException.java:45)
    at com.linecorp.armeria.client.HttpClientDelegate.finishResolve(HttpClientDelegate.java:126)
    at com.linecorp.armeria.client.HttpClientDelegate.lambda$execute$0(HttpClientDelegate.java:110)
    at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:577)
    at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:551)
    at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:490)
    at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:615)
    at io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:608)
    at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:117)
    at com.linecorp.armeria.client.RefreshingAddressResolver.lambda$doResolve$2(RefreshingAddressResolver.java:123)
    at java.base/java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:930)
    at java.base/java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:907)
    at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506)
    at java.base/java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2073)
    at com.linecorp.armeria.client.RefreshingAddressResolver.lambda$sendQueries$4(RefreshingAddressResolver.java:167)
    at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:577)
    at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:551)
    at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:490)
    at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:615)
    at io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:608)
    at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:117)
    at io.netty.resolver.dns.DnsResolveContext.finishResolve(DnsResolveContext.java:1013)
    at io.netty.resolver.dns.DnsResolveContext.tryToFinishResolve(DnsResolveContext.java:958)
    at io.netty.resolver.dns.DnsResolveContext.query(DnsResolveContext.java:406)
    at io.netty.resolver.dns.DnsResolveContext.onResponse(DnsResolveContext.java:617)
    at io.netty.resolver.dns.DnsResolveContext.access$400(DnsResolveContext.java:63)
    at io.netty.resolver.dns.DnsResolveContext$2.operationComplete(DnsResolveContext.java:450)
    at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:577)
    at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:570)
    at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:549)
    at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:490)
    at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:615)
    at io.netty.util.concurrent.DefaultPromise.setSuccess0(DefaultPromise.java:604)
    at io.netty.util.concurrent.DefaultPromise.trySuccess(DefaultPromise.java:104)
    at io.netty.resolver.dns.DnsQueryContext.trySuccess(DnsQueryContext.java:201)
    at io.netty.resolver.dns.DnsQueryContext.finish(DnsQueryContext.java:193)
    at io.netty.resolver.dns.DnsNameResolver$DnsResponseHandler.channelRead(DnsNameResolver.java:1230)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
    at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
    at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
    at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
    at io.netty.channel.nio.AbstractNioMessageChannel$NioMessageUnsafe.read(AbstractNioMessageChannel.java:93)
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:714)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:650)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:576)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)
    at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
    at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
    at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
    at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.net.UnknownHostException: failed to resolve 'berry' after 4 queries 
    at io.netty.resolver.dns.DnsResolveContext.finishResolve(DnsResolveContext.java:1005)
    ... 35 common frames omitted