我突然在生产环境中遇到了这个错误,而应用程序并未承受任何负载。
问题发生在我的代码尝试使用Spring RestTemplate发送PUT消息时。
这是我初始化RestTemplate的代码:
private static final RestTemplate restTemplate = new RestTemplate(new HttpComponentsClientHttpRequestFactory());
{
List<HttpMessageConverter<?>> messageConverters = new ArrayList<HttpMessageConverter<?>>();
Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
marshaller.setClassesToBeBound(PaymentSession.class);
MarshallingHttpMessageConverter marshallingHttpMessageConverter = new MarshallingHttpMessageConverter(marshaller, marshaller);
marshallingHttpMessageConverter.setSupportedMediaTypes(Arrays.asList(MediaType.APPLICATION_XML, MediaType.TEXT_HTML));
messageConverters.add(marshallingHttpMessageConverter);
restTemplate.setMessageConverters(messageConverters);
}
PUT调用
try {
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_XML);
HttpEntity<PaymentSession> httpEntity = new HttpEntity<PaymentSession>(session, headers);
restTemplate.exchange(baseUrl+"/v1/psps", HttpMethod.PUT, httpEntity, PaymentSession.class);
}catch(HttpClientErrorException e){
logger.error("Exception..!!",e)
}
异常堆栈跟踪
Caused by: org.apache.http.conn.ConnectionPoolTimeoutException: Timeout waiting for connection from pool
at org.apache.http.impl.conn.PoolingClientConnectionManager.leaseConnection(PoolingClientConnectionManager.java:232)
at org.apache.http.impl.conn.PoolingClientConnectionManager$1.getConnection(PoolingClientConnectionManager.java:199)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:456)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:805)
at org.springframework.http.client.HttpComponentsClientHttpRequest.executeInternal(HttpComponentsClientHttpRequest.java:88)
at org.springframework.http.client.AbstractBufferingClientHttpRequest.executeInternal(AbstractBufferingClientHttpRequest.java:46)
at org.springframework.http.client.AbstractClientHttpRequest.execute(AbstractClientHttpRequest.java:49)
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:509)