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78 lines
2.0 KiB
Markdown
78 lines
2.0 KiB
Markdown
# Besu RPC Minor Warnings - Fixed
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**Date**: 2026-01-04
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**Status**: ✅ **WARNINGS ADDRESSED**
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---
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## Summary
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Addressed minor operational warnings on VMID 2501, 2506, and 2508 by:
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- Restarting services to clear transient errors
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- Optimizing JVM garbage collection settings
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- Verifying RPC functionality
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---
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## Issues Identified
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### VMID 2501
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- **Warning**: Thread blocked for 2531ms (exceeded 2000ms limit)
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- **Cause**: Transient database operations or resource contention
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- **Status**: ✅ Resolved after restart
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### VMID 2506
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- **Warning**: Thread blocked (historical)
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- **Status**: ✅ No recent errors
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### VMID 2508
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- **Warning**: Thread blocked + Invalid block import errors
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- **Cause**: Transient sync issues and resource contention
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- **Status**: ✅ Resolved after restart
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## Fixes Applied
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### 1. Service Restarts
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- Restarted all three affected nodes to clear transient errors
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- Services recovered successfully
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### 2. JVM Optimization
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- Reduced `MaxGCPauseMillis` from 200ms to 100ms for faster garbage collection
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- Added `ParallelGCThreads=4` for optimized parallel garbage collection
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- This helps reduce thread blocking by allowing GC to complete faster
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### 3. Verification
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- All nodes verified to be responding correctly to RPC requests
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- Chain ID 138 confirmed
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- Block numbers accessible
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## Current Status
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✅ **All nodes operational**
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- VMID 2501: ✅ No runtime errors, RPC working (Chain 138)
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- VMID 2506: ✅ No runtime errors, RPC working (Chain 138)
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- VMID 2508: ✅ No runtime errors, RPC working (Chain 138)
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**Note**: The "exit-code" messages seen in logs are normal systemd notifications from service restarts, not actual runtime errors.
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## Notes
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- Thread blocking warnings are typically transient and occur during:
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- Database compaction operations
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- Large block imports
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- Garbage collection cycles
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- Invalid block import errors are normal during network synchronization and resolve automatically
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- All warnings were non-critical and did not affect RPC functionality
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---
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**Last Updated**: 2026-01-04
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