{"record":{"id":"3b34b10b421b8f21","repo":"NanmiCoder/MediaCrawler","slug":"proxyippool-get-proxy-current-ip-invalid-and-aga","errorCode":null,"errorMessage":"[ProxyIpPool.get_proxy] current ip invalid and again get it","messagePattern":"\\[ProxyIpPool\\.get_proxy\\] current ip invalid and again get it","errorType":"exception","errorClass":"Exception","httpStatus":null,"severity":"warning","filePath":"proxy/proxy_ip_pool.py","lineNumber":112,"sourceCode":"            utils.logger.info(\n                f\"[ProxyIpPool._is_valid_proxy] testing {proxy.ip} err: {e}\"\n            )\n            raise e\n\n    @retry(stop=stop_after_attempt(3), wait=wait_fixed(1))\n    async def get_proxy(self) -> IpInfoModel:\n        \"\"\"\n        Randomly extract a proxy IP from the proxy pool\n        :return:\n        \"\"\"\n        if len(self.proxy_list) == 0:\n            await self._reload_proxies()\n\n        proxy = random.choice(self.proxy_list)\n        self.proxy_list.remove(proxy)  # Remove an IP once extracted\n        if self.enable_validate_ip:\n            if not await self._is_valid_proxy(proxy):\n                raise Exception(\n                    \"[ProxyIpPool.get_proxy] current ip invalid and again get it\"\n                )\n        self.current_proxy = proxy  # Save currently used proxy\n        return proxy\n\n    def is_current_proxy_expired(self, buffer_seconds: int = 30) -> bool:\n        \"\"\"\n        Check if current proxy has expired\n        Args:\n            buffer_seconds: Buffer time (seconds), how many seconds ahead to consider expired\n        Returns:\n            bool: True means expired or no current proxy, False means still valid\n        \"\"\"\n        if self.current_proxy is None:\n            return True\n        return self.current_proxy.is_expired(buffer_seconds)\n\n    async def get_or_refresh_proxy(self, buffer_seconds: int = 30) -> IpInfoModel:","sourceCodeStart":94,"sourceCodeEnd":130,"githubUrl":"https://github.com/NanmiCoder/MediaCrawler/blob/d6f7c5bb906b6dac40ddf343ef9e26438a3de092/proxy/proxy_ip_pool.py#L94-L130","documentation":"Raised by ProxyIpPool.get_proxy() when IP validation is enabled and the randomly chosen proxy fails the _is_valid_proxy() connectivity check. Despite the message saying 'again get it', the code does NOT retry — it raises and leaves the caller responsible for calling get_proxy() again. The failed proxy has already been removed from proxy_list.","triggerScenarios":"Calling get_proxy() with enable_validate_ip=True while the pool holds dead/expired proxies; provider gave IPs that expired between fetch and use; the local machine cannot reach the proxy network (firewall blocking proxy ports).","commonSituations":"Long-lived crawler where cached IPs expire mid-run; proxy provider delivering a batch with some dead nodes; corporate firewall blocking outbound SOCKS/HTTP proxy ports; pool nearly empty so a single failure surfaces immediately.","solutions":["Wrap get_proxy() in a retry loop (3-5 attempts) — each call removes the bad IP so the next attempt gets a fresh one","If the pool keeps failing, force a reload: proxy_list empty triggers _reload_proxies() automatically on the next call","Check local egress: can the host open a TCP connection to the proxy ip:port at all","Set enable_validate_ip=False for static providers (the factory already does this) so known-good static IPs are not re-validated"],"exampleFix":"// before\nproxy = await pool.get_proxy()\n\n// after\nfor attempt in range(5):\n    try:\n        proxy = await pool.get_proxy()\n        break\n    except Exception as e:\n        if attempt == 4:\n            raise\n        utils.logger.warning(f\"proxy invalid, retrying ({attempt+1}/5): {e}\")","handlingStrategy":"retry","validationCode":null,"typeGuard":null,"tryCatchPattern":"async def get_valid_proxy(pool, attempts=5):\n    for i in range(attempts):\n        try:\n            return await pool.get_proxy()\n        except Exception as e:\n            if \"ip invalid\" not in str(e) or i == attempts - 1:\n                raise\n            utils.logger.warning(f\"invalid proxy, retry {i+1}/{attempts}\")\n    raise RuntimeError(\"no valid proxy after retries\")","preventionTips":["Always wrap get_proxy() in a bounded retry loop — each failure already discards the bad IP","Keep enable_validate_ip=True only for dynamic proxy providers","Watch pool size; an empty pool auto-reloads from the provider on the next call"],"tags":["proxy","retry","pool","connectivity"],"backgroundTag":null,"analyzedSha":"d6f7c5bb906b6dac40ddf343ef9e26438a3de092","analyzedAt":"2026-08-15T01:39:07.505Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}