| name | gcp-logs |
| description | Read and query GCP logs for Hyperlane agents using gcloud CLI. Use when investigating relayer, validator, or scraper logs, debugging message processing, or analyzing operational issues. Provides efficient filtering and context management strategies. |
GCP Logs Query Skill
When to Use
- Investigating relayer, validator, or scraper behavior
- Debugging message processing issues
- Analyzing operational incidents
- Looking for specific errors or patterns in agent logs
Prerequisites
gcloud CLI installed and authenticated- Access to
abacus-labs-dev GCP project
Base Query Templates
Relayer (Omniscient)
gcloud logging read 'resource.type="k8s_container" AND resource.labels.project_id="abacus-labs-dev" AND resource.labels.location="us-east1-c" AND resource.labels.cluster_name="hyperlane-mainnet" AND resource.labels.namespace_name="mainnet3" AND labels.k8s-pod/app_kubernetes_io/component="relayer" AND labels.k8s-pod/app_kubernetes_io/instance="omniscient-relayer" AND labels.k8s-pod/app_kubernetes_io/name="hyperlane-agent"' --project=abacus-labs-dev --limit=50 --format=json --freshness=1d
Validator
gcloud logging read 'resource.type="k8s_container" AND resource.labels.project_id="abacus-labs-dev" AND resource.labels.location="us-east1-c" AND resource.labels.cluster_name="hyperlane-mainnet" AND resource.labels.namespace_name="mainnet3" AND labels.k8s-pod/app_kubernetes_io/component="validator" AND labels.k8s-pod/app_kubernetes_io/name="hyperlane-agent"' --project=abacus-labs-dev --limit=50 --format=json --freshness=1d
Scraper
gcloud logging read 'resource.type="k8s_container" AND resource.labels.project_id="abacus-labs-dev" AND resource.labels.location="us-east1-c" AND resource.labels.cluster_name="hyperlane-mainnet" AND resource.labels.namespace_name="mainnet3" AND labels.k8s-pod/app_kubernetes_io/component="scraper3" AND labels.k8s-pod/app_kubernetes_io/instance="omniscient-scraper" AND labels.k8s-pod/app_kubernetes_io/name="hyperlane-agent"' --project=abacus-labs-dev --limit=50 --format=json --freshness=1d
Noise Filtering
Add these filters to reduce noisy log lines that consume context without providing value:
-jsonPayload.fields.message="Found log(s) in index range"
-jsonPayload.fields.message="Dispatching get_public_key"
NOT "Instantiated AWS signer"
-jsonPayload.fields.message="Ingesting leaf"
-jsonPayload.fields.message="Message already marked as processed in DB"
-jsonPayload.fields.message="Message destined for self, skipping"
-jsonPayload.fields.message="Message has already been delivered, marking as submitted."
-jsonPayload.fields.message="Popped OpQueue operations"
-jsonPayload.fields.message="Validator returned latest index"
-jsonPayload.fields.message="Found signed checkpoint"
-jsonPayload.fields.return="Ok(None)"
-jsonPayload.fields.message="Fast forwarded current sequence"
-jsonPayload.fields.message="Cursor can't make progress, sleeping"
-jsonPayload.fields.message="fallback_request"
-jsonPayload.fields.message="No message found in DB for leaf index"
-jsonPayload.fields.message="Processor working on message"
-jsonPayload.fields.message="Message destined for unknown domain, skipping"
Progressive Query Strategy (Token Efficiency)
Step 1: Fetch Message Field Only First
To minimize context consumption, first fetch only the message field:
gcloud logging read '[BASE_QUERY] AND "[search_term]"' --project=abacus-labs-dev --limit=30 --format='json(jsonPayload.fields.message,timestamp)' --freshness=1d
This gives you a quick overview without the full log payload.
Step 2: Get Full Context for Specific Entries
Once you identify interesting log entries, fetch full details:
gcloud logging read '[BASE_QUERY] AND "[specific_identifier]"' --project=abacus-labs-dev --limit=20 --format=json --freshness=1d
Step 3: Extract Specific Fields
When you need specific details, use jq or grep to extract:
gcloud logging read '[QUERY]' --format=json | jq '.[].jsonPayload.fields.error'
Common Query Patterns
Search by Message ID
gcloud logging read '[BASE_QUERY] AND "0x[MESSAGE_ID]"' --project=abacus-labs-dev --limit=50 --format=json --freshness=1d
Search for Errors/Warnings
gcloud logging read '[BASE_QUERY] AND severity>="WARNING"' --project=abacus-labs-dev --limit=50 --format=json --freshness=1d
Search by Chain/Domain
gcloud logging read '[BASE_QUERY] AND jsonPayload.spans.domain:"[chain_name]"' --project=abacus-labs-dev --limit=50 --format=json --freshness=1d
Search for Stuck Messages (High Retry Count)
gcloud logging read '[BASE_QUERY] AND jsonPayload.fields.num_retries>=5' --project=abacus-labs-dev --limit=30 --format=json --freshness=1d
Search for Gas Estimation Errors
gcloud logging read '[BASE_QUERY] AND "eth_estimateGas"' --project=abacus-labs-dev --limit=30 --format=json --freshness=1d
Search by App Context
gcloud logging read '[BASE_QUERY] AND jsonPayload.fields.app_context:"[APP_CONTEXT]"' --project=abacus-labs-dev --limit=30 --format=json --freshness=1d
Time Range Options
--freshness=1h - Last hour--freshness=1d - Last day--freshness=7d - Last week- Or use explicit timestamps in filter:
timestamp>="2026-01-27T00:00:00Z"
Output Format Options
--format=json - Full JSON (verbose, high context)--format='json(jsonPayload.fields.message,timestamp)' - Specific fields only (efficient)--format='value(jsonPayload.fields.message)' - Just values, no structure
Key Log Fields to Focus On
| Field | Description |
|---|
jsonPayload.fields.message | Main log message |
jsonPayload.fields.error | Error details |
jsonPayload.spans[].domain | Chain involved |
jsonPayload.fields.num_retries | Retry count |
jsonPayload.fields.operations | Pending message details |
jsonPayload.span.id | Message ID in span context |
Environment Variations
| Environment | Namespace | Cluster |
|---|
| mainnet3 | mainnet3 | hyperlane-mainnet |
| testnet4 | testnet4 | hyperlane-mainnet |
Tips
- Always start specific - Search for exact message IDs or error patterns first
- Use noise filters - The base logs are very noisy; always filter
- Limit results - Use
--limit to avoid overwhelming context
- Progressive detail - Start with message field only, expand as needed
- Time bound queries - Use
--freshness or timestamp filters
- Pipe to grep/jq - Post-process large results locally
