Send and verify events with Sidekiq job telemetry
Use Sidekiq job telemetry where your app knows the final result. Collect only the fields you need, then verify a test event before building charts.
- 1
Choose the outcome
Sidekiq retry monitoring
- 2
Define the contract
job_id, job_name, queue_name, attempt, status, duration_ms, and release
- 3
Log the final result
The initializer registers server middleware. The same logical jid is retained across Sidekiq retries; the first attempt is 1 and retry_count 0 means attempt 2. Invalid retry metadata stays unknown.
- 4
Check the stored event
Exercise a known fixture, then inspect job_attempt_completed for one correctly typed terminal row.
Before you start
Before you start
- A server-side TELEMETRY_API_KEY with write access
- Put this example in config/initializers/telemetry_sidekiq.rb, loaded once in each worker process
- Sidekiq 7 or later with Sidekiq::ServerMiddleware
Delivery setup
Install and initialize server-side
Use a small Net::HTTP wrapper with a server-side key plus explicit open and read timeouts. Keep ingestion credentials out of browser bundles, client-visible environment variables, source control, logs, and exception messages.
- 1Create one reusable server-side client. Set its timeout and retry limit.
- 2Log an event when the operation succeeds, fails, retries, or times out.
- 3Send test events with known results and inspect the stored rows before enabling an alert.
Snippet
Start with one structured event
Add this shape where the workflow completes, fails, or retries. Then build the dashboard from real fields.
Sidekiq job telemetry event
# config/initializers/telemetry_sidekiq.rb
require "sidekiq"
require "json"
require "net/http"
require "uri"
module TelemetrySidekiqAttempts
def self.delivery_failed
warn "Telemetry job event delivery failed."
rescue StandardError
# A broken diagnostic sink must not change the job outcome.
end
def self.log(fields)
key = ENV["TELEMETRY_API_KEY"]
return if key.nil? || key.empty?
uri = URI("https://api.telemetry.sh/log")
request = Net::HTTP::Post.new(uri)
request["Authorization"] = key
request["Content-Type"] = "application/json"
request.body = { table: "job_attempt_completed", data: fields }.to_json
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true
http.open_timeout = 1
http.read_timeout = 1
http.write_timeout = 1
http.max_retries = 0
response = http.start { |client| client.request(request) }
delivery_failed unless response.is_a?(Net::HTTPSuccess)
rescue StandardError
delivery_failed
end
end
class TelemetryOutcomeMiddleware
include Sidekiq::ServerMiddleware
def call(_job_instance, job, queue)
started = Process.clock_gettime(Process::CLOCK_MONOTONIC)
status = "not_returned"
begin
result = yield
status = "returned"
result
rescue StandardError
status = "raised"
raise
ensure
begin
retry_count = job["retry_count"]
attempt = if !job.key?("retry_count")
1
elsif retry_count.is_a?(Integer) && retry_count >= 0
retry_count + 2
end
TelemetrySidekiqAttempts.log({
job_id: job["jid"],
job_name: job["class"],
queue_name: queue,
attempt: attempt,
status: status,
duration_ms: ((Process.clock_gettime(
Process::CLOCK_MONOTONIC
) - started) * 1000).round(2),
release: ENV["APP_RELEASE"]
})
rescue StandardError
TelemetrySidekiqAttempts.delivery_failed
end
end
end
end
Sidekiq.configure_server do |config|
config.server_middleware do |chain|
chain.add TelemetryOutcomeMiddleware
end
endEvent schema
job_id, job_name, queue_name, attempt, status, duration_ms, and release
No job arguments, result bodies, exception messages, or application account data
Check your setup
Checkpoint 1
The initializer registers server middleware. The same logical jid is retained across Sidekiq retries; the first attempt is 1 and retry_count 0 means attempt 2. Invalid retry metadata stays unknown.
Checkpoint 2
A returned job block is not proof of downstream delivery. StandardError is recorded as raised and re-raised unchanged; other non-returning exits remain not_returned.
Checkpoint 3
The example does not measure queue wait, retry exhaustion, or Active Job's separate retry policy. Add those at their own verified lifecycle hooks.
Checkpoint 4
Duration uses a monotonic clock and excludes the synchronous export time. Export still occupies the worker and adds processing latency.
Checkpoint 5
Transport, non-2xx, encoding, metadata, and diagnostic failures are contained. A missing key skips export without changing the job result or original exception.
Checkpoint 6
Open, read, and write timeouts are one second each, not a hard total deadline. There is no export retry, durable queue, or shutdown drain; use an application-owned outbox when loss is unacceptable.
Verification
Prove the event arrived
Run this after exercising known success and failure cases. Replace the fallback table name if your final event contract differs from the snippet.
Sidekiq job telemetry verification query
SELECT *
FROM job_attempt_completed
ORDER BY timestamp_utc DESC
LIMIT 20;Implementation references
Review the event contract, data-safety guidance, and upstream primary documentation before enabling a new production path.
Where to log
Keep the outcome event small and recoverable
This pattern provides
- Record the outcome as an event you can query with SQL.
- Stable fields for dashboards, alerts, and cross-event correlation.
- Test events for checking success, failure, retries, and timeouts.
This pattern does not provide
- An OTLP exporter, automatic collection pipeline, or replacement for detailed traces and diagnostic logs.
- Exactly-once delivery merely because the payload contains an event ID.
- Permission to collect raw provider payloads, user content, credentials, or regulated data.
Example event schemas
Event schemas for this workflow
Check what each event records, when to send it, and which field types it needs. Review the example payload and privacy checklist before using it in production.
Use these queries in Telemetry
Learn about Alerts
Add a threshold and recipients to your reliability query to get alerts.
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