@openprofiling/exporter-gcs
v0.2.2
Published
This exporter is advised when profiling distributed applications where retrieving from each container file system can be hard. It will just write the profile to a remote S3-compatible server, the file name in each bucket will follow the following format:
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OpenProfiling NodeJS - Google Cloud Storage Exporter
This exporter is advised when profiling distributed applications where retrieving from each container file system can be hard. It will just write the profile to a remote S3-compatible server, the file name in each bucket will follow the following format:
const name = `${profile.kind}-${profile.startTime.toISOString()}.${profile.extension}`
Where the profile kind can be: HEAP_PROFILE
, CPU_PROFILE
or PERFECTO
And the extension can be either: heaprofile
, cpuprofile
or json
Advantages
- Centralization of every profile, prefered when using containers
Drawbacks
- You need to have a S3 compatible running (or AWS S3 itself) and manage it yourself.
How to use
In the following example, when the profile will be done it will be written to the remote S3 bucket:
import { ProfilingAgent } from '@openprofiling/nodejs'
import { GcloudStorageExporter } from '@openprofiling/exporter-gcs'
import { InspectorCPUProfiler } from '@openprofiling/inspector-cpu-profiler'
import { SignalTrigger } from '@openprofiling/trigger-signal'
const profilingAgent = new ProfilingAgent()
profilingAgent.register(new SignalTrigger({ signal: 'SIGUSR2' }), new InspectorCPUProfiler())
profilingAgent.start({
exporter: new GcloudStorageExporter({
// Alternatively, you might pass it via the GOOGLE_APPLICATION_CREDENTIALS env variable
keyFilename: 'some/where/key.json',
// Alternatively, you might pass it via the GCLOUD_PROJECT env variable
projectId: 'my-project',
/*
* name of the bucket to create
*/
bucket: 'test'
}
})
Development
When developing against this package, you might want to run a fake gcs server with Minio to be able to run tests and verify the behavior:
docker run -d --name fake-gcs-server -p 4443:4443 fsouza/fake-gcs-server