调用eTicketCouponLLSRQ时偶发ERR.SWS.HOST.CONNECTOR_ERROR问题咨询

First, let's break down what the ERR.SWS.HOST.CONNECTOR_ERROR error means: this is a Sabre Web Services error indicating a temporary failure in the connection between your SRW SDK and Sabre's backend host systems. Since it's intermittent (works sometimes, fails others), it's unlikely to be a fundamental configuration issue—here are the most probable causes and fixes tailored to your environment (SRW 2.15.2 SDK, PCC Z4KB, EPR 1112):

Possible Causes #

• Backend Host Resource Fluctuations: Sabre's CERT environment hosts might experience temporary spikes in load, leading to inability to accept new connections for short periods.
• Unstable Network Link: Temporary network glitches between your system and Sabre's CERT endpoints (e.g., firewall session timeouts, routing blips, packet loss) can disrupt the connection.
• SDK Connection Configuration Issues: Your SDK might have overly aggressive timeout settings, or missing retry logic for transient errors.
• Occasional Ticket State Edge Cases: While less likely (since your request works sometimes), rare states for the queried eTicket number could trigger host-side processing delays that manifest as connection errors.

Recommended Fixes #

1. Adjust SDK Connection Parameters

   • Check your SRW SDK configuration for connection timeout and socket timeout values. If they're set too low, increase them to give the host more time to respond.
   • Enable the SDK's built-in retry mechanism for transient errors (most Sabre SRW SDKs include configurable retry logic specifically for connector/host connection failures).

2. Implement Client-Side Retry Logic
   Since eTicketCouponLLSRQ is a read-only query interface (retrieving coupon details), it's safe to implement idempotent retries in your code. Add a retry loop (2-3 attempts with 2-5 second intervals) specifically for ERR.SWS.HOST.CONNECTOR_ERROR responses.

3. Engage Sabre Support
   Reach out to Sabre's support team with the following details:

   • Your PCC (Z4KB) and EPR (1112)
   • Timestamps of failed requests
   • The exact error code and partial response you received
     They can check their CERT host logs for resource bottlenecks, maintenance windows, or specific issues tied to your account.

4. Verify Local Network Stability
   Run continuous network diagnostics (ping, traceroute) from your application server to Sabre's CERT endpoints to rule out intermittent local network issues like packet loss or latency spikes.

Your Request Reference #

Here's the request payload you provided (formatted for clarity):

<?xml version="1.0" encoding="UTF-8"?>
<eTicketCouponRQ xmlns="http://webservices.sabre.com/sabreXML/2011/10" TimeStamp="2018-04-23T10:36:18.907" Version="2.0.0">
  <Ticketing eTicketNumber="5552484960880"/>
</eTicketCouponRQ>

内容的提问来源于stack exchange，提问作者Максим Семенов