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CloudSpanner / Tracing / Health Checks

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@Martin2112 Martin2112 released this 08 May 12:55
· 2148 commits to master since this release
3a68a84

More improvements have been made to the CloudSpanner storage code. CloudSpanner storage has now been tested up to ~3.1 billion log entries.

Explicit health checks have been added to the gRPC Log and Map servers (and the log signer). The HTTP endpoint must be enabled and the checks will serve on /healthz where a non 200 response means the server is unhealthy. The example Kubernetes deployment configuration has been updated to include them. Other improvements have been made to the Kubernetes deployment scripts and docs.

The gRPC Log and Map servers have been instrumented for tracing with OpenCensus. For GCP it just requires the --tracing flag to be added and results will be available in the GCP console under StackDriver -> Trace.