【发布时间】：2022-10-05 23:32:22
【问题描述】：
我正在尝试将我的 datadog 代理配置为在我的 values.yaml 文件中使用以下内容进行普罗米修斯检查：
prometheusScrape:
enabled: true
serviceEndpoints: true
additionalConfigs:
-
configurations:
- collect_histogram_buckets: true
但是在检查代理的状态时，我最终收到以下错误：
Traceback (most recent call last):
File \"/opt/datadog-agent/embedded/lib/python3.8/site-packages/datadog_checks/base/checks/base.py\", line 1091, in run
initialization()
File \"/opt/datadog-agent/embedded/lib/python3.8/site-packages/datadog_checks/base/checks/openmetrics/v2/base.py\", line 83, in configure_scrapers
scrapers[endpoint] = self.create_scraper(config)
File \"/opt/datadog-agent/embedded/lib/python3.8/site-packages/datadog_checks/base/checks/openmetrics/v2/base.py\", line 90, in create_scraper
return OpenMetricsScraper(self, self.get_config_with_defaults(config))
File \"/opt/datadog-agent/embedded/lib/python3.8/site-packages/datadog_checks/base/checks/openmetrics/v2/scraper.py\", line 64, in __init__
self.metric_transformer = MetricTransformer(self.check, config)
File \"/opt/datadog-agent/embedded/lib/python3.8/site-packages/datadog_checks/base/checks/openmetrics/v2/transform.py\", line 50, in __init__
self.metric_patterns.append((re.compile(raw_metric_name), config))
File \"/opt/datadog-agent/embedded/lib/python3.8/re.py\", line 252, in compile
return _compile(pattern, flags)
File \"/opt/datadog-agent/embedded/lib/python3.8/re.py\", line 304, in _compile
p = sre_compile.compile(pattern, flags)
File \"/opt/datadog-agent/embedded/lib/python3.8/sre_compile.py\", line 764, in compile
p = sre_parse.parse(p, flags)
File \"/opt/datadog-agent/embedded/lib/python3.8/sre_parse.py\", line 948, in parse
p = _parse_sub(source, state, flags & SRE_FLAG_VERBOSE, 0)
File \"/opt/datadog-agent/embedded/lib/python3.8/sre_parse.py\", line 443, in _parse_sub
itemsappend(_parse(source, state, verbose, nested + 1,
File \"/opt/datadog-agent/embedded/lib/python3.8/sre_parse.py\", line 668, in _parse
raise source.error(\"nothing to repeat\",
re.error: nothing to repeat at position 0
我的配置基于helm chart 中的示例。
我还在我的 pod 中添加了 ADP 2 注释（如下所示来自kubectl describe pod）：
Annotations: ad.datadoghq.com/rpc-node-proxy.checks:
{
\"openmetrics\": {
\"instances\": [
{
\"openmetrics_endpoint\": \"http://%%host%%:3000/metrics\",
\"namespace\": \"rpc-node-proxy\",
\"collect_histogram_buckets\": true,
\"metrics\": [\"*\"]
}
]
}
}
kubernetes.io/psp: eks.privileged
prometheus.io/scrape: true
查看我的代理的日志，我看到以下内容：
2022-10-05 15:02:53 UTC | CORE | INFO | (pkg/collector/python/datadog_agent.go:127 in LogMessage) | openmetrics:1067ca789343c469 | (base.py:60) | Scraping OpenMetrics endpoint: http://192.168.180.78:3000/metrics
2022-10-05 15:03:00 UTC | CORE | ERROR | (pkg/collector/worker/check_logger.go:69 in Error) | check:openmetrics | Error running check: [{\"message\": \"nothing to repeat at position 0\", \"traceback\": \"Traceback (most recent call last):\\n File \\\"/opt/datadog-agent/embedded/lib/python3.8/site-packages/datadog_checks/base/checks/base.py\\\", line 1091, in run\\n initialization()\\n File \\\"/opt/datadog-agent/embedded/lib/python3.8/site-packages/datadog_checks/base/checks/openmetrics/v2/base.py\\\", line 83, in configure_scrapers\\n scrapers[endpoint] = self.create_scraper(config)\\n File \\\"/opt/datadog-agent/embedded/lib/python3.8/site-packages/datadog_checks/base/checks/openmetrics/v2/base.py\\\", line 90, in create_scraper\\n return OpenMetricsScraper(self, self.get_config_with_defaults(config))\\n File \\\"/opt/datadog-agent/embedded/lib/python3.8/site-packages/datadog_checks/base/checks/openmetrics/v2/scraper.py\\\", line 64, in __init__\\n self.metric_transformer = MetricTransformer(self.check, config)\\n File \\\"/opt/datadog-agent/embedded/lib/python3.8/site-packages/datadog_checks/base/checks/openmetrics/v2/transform.py\\\", line 50, in __init__\\n self.metric_patterns.append((re.compile(raw_metric_name), config))\\n File \\\"/opt/datadog-agent/embedded/lib/python3.8/re.py\\\", line 252, in compile\\n return _compile(pattern, flags)\\n File \\\"/opt/datadog-agent/embedded/lib/python3.8/re.py\\\", line 304, in _compile\\n p = sre_compile.compile(pattern, flags)\\n File \\\"/opt/datadog-agent/embedded/lib/python3.8/sre_compile.py\\\", line 764, in compile\\n p = sre_parse.parse(p, flags)\\n File \\\"/opt/datadog-agent/embedded/lib/python3.8/sre_parse.py\\\", line 948, in parse\\n p = _parse_sub(source, state, flags & SRE_FLAG_VERBOSE, 0)\\n File \\\"/opt/datadog-agent/embedded/lib/python3.8/sre_parse.py\\\", line 443, in _parse_sub\\n itemsappend(_parse(source, state, verbose, nested + 1,\\n File \\\"/opt/datadog-agent/embedded/lib/python3.8/sre_parse.py\\\", line 668, in _parse\\n raise source.error(\\\"nothing to repeat\\\",\\nre.error: nothing to repeat at position 0\\n\"}]
2022-10-05 15:03:02 UTC | CORE | INFO | (pkg/serializer/serializer.go:401 in sendMetadata) | Sent metadata payload, size (raw/compressed): 3635/1146 bytes.
2022-10-05 15:03:03 UTC | CORE | INFO | (pkg/serializer/serializer.go:425 in SendProcessesMetadata) | Sent processes metadata payload, size: 1476 bytes.
我已经验证 http://192.168.180.78:3000/metrics 正在通过执行到 pod、安装 curl 并执行 curl http://192.168.180.78:3000/metrics 来发出指标，这会输出许多指标，如下所示：
rpc_request_duration_ms_bucket{le=\"5\",nodeName=\"optimism-alchemy\",nodeUrl=\"https://opt-goerli.g.alchemy.com./v2/rlEHpvxAL--b_Oa\",network=\"optimism-goerli\",rpcMethod=\"eth_getTransactionReceipt\",weight=\"1\",app=\"rpc-node-proxy\"} 0
rpc_request_duration_ms_bucket{le=\"10\",nodeName=\"optimism-alchemy\",nodeUrl=\"https://opt-goerli.g.alchemy.com./v2/rlEHpvxAL--b_Oa\",network=\"optimism-goerli\",rpcMethod=\"eth_getTransactionReceipt\",weight=\"1\",app=\"rpc-node-proxy\"} 0
rpc_request_duration_ms_bucket{le=\"+Inf\",nodeName=\"optimism-alchemy\",nodeUrl=\"https://opt-goerli.g.alchemy.com./v2/rlEHpvxAL--b_Oa\",network=\"optimism-goerli\",rpcMethod=\"eth_getTransactionReceipt\",weight=\"1\",app=\"rpc-node-proxy\"} 9
rpc_request_duration_ms_sum{nodeName=\"optimism-alchemy\",nodeUrl=\"https://opt-goerli.g.alchemy.com./v2/rlEHpvxAL--b_Oa\",network=\"optimism-goerli\",rpcMethod=\"eth_getTransactionReceipt\",weight=\"1\",app=\"rpc-node-proxy\"} 916
这个数据狗代理错误是什么意思，我该如何调试它？
标签： datadog