If you are reporting any crash or any potential security issue, do not
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envoy-security@googlegroups.com where the issue will be triaged appropriately.

Title: One line description
Prometheus stats handler used too much memory.

Description:

What issue is being seen? Describe what should be happening instead of
the bug, for example: Envoy should not crash, the expected value isn't
returned, etc.

Repro steps:

Include sample requests, environment, etc. All data and inputs
required to reproduce the bug.

Note: The Envoy_collect tool
gathers a tarball with debug logs, config and the following admin
endpoints: /stats, /clusters and /server_info. Please note if there are
privacy concerns, sanitize the data prior to sharing the tarball/pasting.

Admin and Stats Output:

Include the admin output for the following endpoints: /stats,
/clusters, /routes, /server_info. For more information, refer to the
admin endpoint documentation.

Note: If there are privacy concerns, sanitize the data prior to
sharing.

Config:

Include the config used to configure Envoy.

Logs:

Include the access logs and the Envoy logs.

Note: If there are privacy concerns, sanitize the data prior to
sharing.

Call Stack:

If the Envoy binary is crashing, a call stack is required.
Please refer to the Bazel Stack trace documentation.