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fuzz: disable logging when running under fuzz engine. #4161

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merged 1 commit into from
Aug 16, 2018

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@htuch htuch commented Aug 15, 2018

The ClusterFuzz stats indicated a lot of log spew, this is a structural
attempt to reduce it. We now run with logging off when under the engine,
but at ::info when running under bazel test. This can be further
overriden when debugging with -l to more verbose levels. The usual flow
is we download a repeater from the database and then reproduce with
logs.

There's still some log spam from libproto, will look into that
separately.

Risk Level: low
Testing: manual tests on CLI with different combinations of flags.

Signed-off-by: Harvey Tuch [email protected]

The ClusterFuzz stats indicated a lot of log spew, this is a structural
attempt to reduce it. We now run with logging off when under the engine,
but at ::info when running under bazel test. This can be further
overrides when debugging with -l to more verbose levels. The usual flow
is we download a repeater from the database and then reproduce with
logs.

There's still some log spam from libproto, will look into that
separately.

Risk Level: low
Testing: manual tests on CLI with different combinations of flags.

Signed-off-by: Harvey Tuch <[email protected]>
@htuch htuch merged commit 132302c into envoyproxy:master Aug 16, 2018
@htuch htuch deleted the reduce-log-spam branch August 16, 2018 15:43
rshriram pushed a commit to rshriram/envoy that referenced this pull request Oct 30, 2018
…#1938)

This is far from finished, but it reduces memory usage by ~10%.

Pulling the following changes from github.com/envoyproxy/envoy:

c1cc68d stats: refactoring MetricImpl without strings (envoyproxy#4190)
36809d8 fuzz: coverage profile generation instructions. (envoyproxy#4193)
ba40cc9 upstream: rebuild cluster when health check config is changed (envoyproxy#4075)
05c0d52 build: use clang-6.0. (envoyproxy#4168)
01f403e thrift_proxy: introduce header transport (envoyproxy#4082)
564d256 tcp: allow connection pool callers to store protocol state (envoyproxy#4131)
3e1d643 configs: match latest API changes (envoyproxy#4185)
bc6a10c Fix wrong mock function name. (envoyproxy#4187)
e994c1c Bump yaml-cpp so it builds with Visual Studio 15.8 (envoyproxy#4182)
3d1325e Converting envoy configs to V2 (envoyproxy#2957)
8d0680f Add timestamp to HealthCheckEvent definition (envoyproxy#4119)
497efb9 server: handle non-EnvoyExceptions safely if thrown in constructor. (envoyproxy#4173)
6d6fafd config: strengthen validation for gRPC config sources. (envoyproxy#4171)
132302c fuzz: reduce log level when running under fuzz engine. (envoyproxy#4161)
7c04ac2 test: fix V6EmptyOptions in coverage with IPv6 enable (envoyproxy#4155)
1b2219b ci: remove deprecated bazel --batch option (envoyproxy#4166)
2db6a4c ci: update clang to version 6.0 in the Ubuntu build image. (envoyproxy#4157)
71152b7 ratelimit: Add ratelimit custom response headers (envoyproxy#4015)
3062874 ssl: make Ssl::Connection const everywhere (envoyproxy#4179)
706e262 Handle validation of non expiring tokens in jwt_authn filter (envoyproxy#4007)
f06e958 fuzz: tag trivial fuzzers with no_fuzz. (envoyproxy#4156)
27fb1d3 thrift_proxy: add service name matching to router implementation (envoyproxy#4130)
8c189a5 Make over provisioning factor configurable (envoyproxy#4003)
6c08fb4 Making test less flaky (envoyproxy#4149)
592775b fuzz: bare bones HCM fuzzer. (envoyproxy#4118)

For istio/istio#7912.

Signed-off-by: Piotr Sikora <[email protected]>
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