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test/e2e: enable pprof server to help debugging failures (#6003)

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This commit is contained in:
Anton Kaliaev
2021-01-28 19:21:07 +04:00
committed by Tess Rinearson
parent eb09376ba0
commit 33fb03fcc8
3 changed files with 30 additions and 3 deletions
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29
test/e2e/README.md
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@@ -82,11 +82,36 @@ func init() {
### Debugging Failures
If a command or test fails, the runner simply exits with an error message and non-zero status code. The testnet is left running with data in the testnet directory, and can be inspected with e.g. `docker ps`, `docker logs`, or `./build/runner -f <manifest> logs` or `tail`. To shut down and remove the testnet, run `./build/runner -f <manifest> cleanup`.
If a command or test fails, the runner simply exits with an error message and
non-zero status code. The testnet is left running with data in the testnet
directory, and can be inspected with e.g. `docker ps`, `docker logs`, or
`./build/runner -f <manifest> logs` or `tail`. To shut down and remove the
testnet, run `./build/runner -f <manifest> cleanup`.
If the standard `log_level` is not detailed enough (e.g. you want "debug" level
logging for certain modules), you can change it in the manifest file.
Each node exposes a [pprof](https://golang.org/pkg/runtime/pprof/) server. To
find out the local port, run `docker port <NODENAME> 6060 | awk -F: '{print
$2}'`. Then you may perform any queries supported by the pprof tool. Julia
Evans has a [great
post](https://jvns.ca/blog/2017/09/24/profiling-go-with-pprof/) on this
subject.
```bash
export PORT=$(docker port full01 6060 | awk -F: '{print $2}')
go tool pprof http://localhost:$PORT/debug/pprof/goroutine
go tool pprof http://localhost:$PORT/debug/pprof/heap
go tool pprof http://localhost:$PORT/debug/pprof/threadcreate
go tool pprof http://localhost:$PORT/debug/pprof/block
go tool pprof http://localhost:$PORT/debug/pprof/mutex
```
## Enabling IPv6
Docker does not enable IPv6 by default. To do so, enter the following in `daemon.json` (or in the Docker for Mac UI under Preferences → Docker Engine):
Docker does not enable IPv6 by default. To do so, enter the following in
`daemon.json` (or in the Docker for Mac UI under Preferences → Docker Engine):
```json
{

2
test/e2e/docker/Dockerfile
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@@ -27,7 +27,7 @@ WORKDIR /tendermint
VOLUME /tendermint
ENV TMHOME=/tendermint
EXPOSE 26656 26657 26660
EXPOSE 26656 26657 26660 6060
ENTRYPOINT ["/usr/bin/entrypoint"]
CMD ["node"]
STOPSIGNAL SIGTERM

2
test/e2e/runner/setup.go
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@@ -165,6 +165,7 @@ services:
ports:
- 26656
- {{ if .ProxyPort }}{{ .ProxyPort }}:{{ end }}26657
- 6060
volumes:
- ./{{ .Name }}:/tendermint
networks:
@@ -220,6 +221,7 @@ func MakeConfig(node *e2e.Node) (*config.Config, error) {
cfg.Moniker = node.Name
cfg.ProxyApp = AppAddressTCP
cfg.RPC.ListenAddress = "tcp://0.0.0.0:26657"
cfg.RPC.PprofListenAddress = ":6060"
cfg.P2P.ExternalAddress = fmt.Sprintf("tcp://%v", node.AddressP2P(false))
cfg.P2P.AddrBookStrict = false
cfg.DBBackend = node.Database