Feign mixing up two separate request/response within the same client

オープン
#2,125 コメント 1 件 リアクション 0 件 担当者 0 名 GitHub で見る

メンテナーはふだん 1 日以内に返信

まだ誰も着手していません。

評価

難易度
4/5
見積もり時間
3〜5日
初心者へのやさしさ
30/100
issue の種類
バグ
明瞭さ
説明が足りない
活発さ
停滞
技術スタック
java, spring-boot
領域
api, backend

調査の方向性

まず PlaceholderResource Feign interface と FeignConfiguration から始め、次にレポートに示されている同時リクエストのログ、URL、correlation ID を比較します。完了条件は、リクエスト間でレスポンスが取り違えられる現象を再現し、ある API 呼び出しのレスポンスを別の API 呼び出しに返している Feign コンポーネントまたは設定を特定することです。

索引モデルが issue の本文から書いたものです。

説明

feedback provided spring-cloud

Hi

I have been using feign for calls from one spring boot application to another in an infrastructure which has a large volume of API calls. Recently I have been getting an intermittent issue which says that the response received to one of the feign client calls cannot be resolved to the Object that it expects. Upon further debugging, I saw that the response received on this feign call is an unexpected response as it is supposed to be received on a completely different feign call.

Feign logs:

Jul 5, 2023 @ 18:33:44.518	[PlaceholderResource#getPlaceholderType] ---> GET http://placeholder-url.com/v5/getplaceholdertype/123/type/1234 HTTP/1.1
Jul 5, 2023 @ 18:33:44.518	[PlaceholderResource#getPlaceholderType] X-MM-CORRELATION-ID: correlation-id-1
Jul 5, 2023 @ 18:33:44.518	[PlaceholderResource#getPlaceholderType] ---> END HTTP (0-byte body)
Jul 5, 2023 @ 18:33:44.518	[PlaceholderResource#getPlaceholderType] <--- HTTP/1.1 200 OK (0ms)
Jul 5, 2023 @ 18:33:44.518	[PlaceholderResource#getPlaceholderType] content-type: application/json
Jul 5, 2023 @ 18:33:44.518	[PlaceholderResource#getPlaceholderType] link: <http://placeholder-url.com/v5/api/getplaceholderobject/123/user/123123/placeholderobject?param1=123123&param2=true&param3=false&page=-1&size=100>; rel="last" <http://placeholder-url.com/v5/api/getplaceholderobject/123/user/123123/placeholderobject?param1=123123&param2=true&param3=false&page=-1&size=100>; rel="first"
Jul 5, 2023 @ 18:33:44.519	[PlaceholderResource#getPlaceholderType] vary: accept-encoding
Jul 5, 2023 @ 18:33:44.519	[PlaceholderResource#getPlaceholderType] x-mm-correlation-id: correlation-id-2
Jul 5, 2023 @ 18:33:44.518	[PlaceholderResource#getPlaceholderType] date: Wed 05 Jul 2023 14:33:34 GMT
Jul 5, 2023 @ 18:33:44.519	[PlaceholderResource#getPlaceholderType] x-total-count: 0
Jul 5, 2023 @ 18:33:44.519	[PlaceholderResource#getPlaceholderType] x-result-count: 0-0/0
Jul 5, 2023 @ 18:33:44.519	[PlaceholderResource#getPlaceholderType] []
Jul 5, 2023 @ 18:33:44.519	[PlaceholderResource#getPlaceholderType] <--- END HTTP (2-byte body)
Jul 5, 2023 @ 18:33:44.519	[PlaceholderResource#getPlaceholderType] 

The URL returned in the link header is sent back from a different URL used for getPlaceholderObjects API and not the getPlaceholderType API

This [] response is expected for the getPlaceholderObjects API. Even the correlation ID header we're receiving is for a different API call which is supposed to be running in a different thread.

Feign interface:

@FeignClient(
		name = "placeholderResource",
		url = "${placeholder.api.url}")
@Headers("Content-Type: application/json")
public interface PlaceholderResource {

	/**
	 * Get placeholder type
	 */
	@GetMapping(
			value = "/getplaceholdertype/{referrerId}/type/{placeholderTypeId}")
	PlaceholderType getPlaceholderType(@PathVariable("referrerId") final Integer referrerId,
			@PathVariable("placeholderTypeId") final Long placeholderTypeId);

	/**
	 * Get placeholder object(s)
	 */
	@GetMapping(
			value = "/getplaceholderobject/{referrerId}/user/{userId}/placeholderobject")
	PlaceholderObject[] getPlaceholderObjects(@PathVariable("referrerId") final Integer referrerId,
			@PathVariable("userId") final Long userId,
			@RequestParam("param1") final List<Long> param1,
			@RequestParam("param2") final String param2,
			@RequestParam("param3") final Boolean param3);
}

Feign configuration:

/**
 * Configuration class for feign client(s).
 */
@Configuration
@EnableDiscoveryClient
public class FeignConfiguration {

	@Bean
	public FeignClientEncodingProperties feignClientEncodingProperties() {
		return new FeignClientEncodingProperties();
	}

	@Bean
	public ErrorDecoder feignErrorDecoder() {
		return new CustomFeignErrorDecoder();
	}
}
主要言語
Java
スター
9.8k
フォーク
2k
平均マージ
1時間 23分
マージ済み PR(30日)
31

環境構築

はじめの一歩

  1. issue を最後まで読み、次にプロジェクトのコントリビューションガイドを読みます。
  2. 着手することを issue にコメントします — 二人が同じ作業をするのを防げます。
  3. リポジトリをフォークし、ブランチを切って変更します。
  4. issue 番号を参照したプルリクエストを送ります。

OpenFeign/feign のほかの issue

OpenFeign/feign の issue をすべて見る

似ている issue

Java の issue をもっと見る

新しい issue をメールで受け取る

初心者向けの GitHub issue を短くまとめたダイジェスト。