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Show HN: BreakerMachines – Modern Circuit Breaker for Rails with Async Support

news.ycombinator.com Unknown 2025-07-31 00:35:28

BreakerMachines The circuit breaker that went where no Ruby has gone before! ⭐ A battle-tested Ruby implementation of the Circuit Breaker pattern, built on state_machines for reliable distributed systems protection. Quick Start gem ' breaker_machines ' class PaymentService include BreakerMachines :: DSL circuit :stripe do threshold failures : 3 , within : 1 . minute reset_after 30 . seconds fallback { { error : "Payment queued for later" } } end def charge ( amount ) circuit ( :stripe ) . w

Topics: async circuit docs md redis
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OpenTelemetry for Go: Measuring overhead costs

news.ycombinator.com Nikolay Sivko 2025-09-12 18:09:17

Everything comes at a cost — and observability is no exception. When we add metrics, logging, or distributed tracing to our applications, it helps us understand what’s going on with performance and key UX metrics like success rate and latency. But what’s the cost? I’m not talking about the price of observability tools here, I mean the instrumentation overhead. If an application logs or traces everything it does, that’s bound to slow it down or at least increase resource consumption. Of course,

Topics: app http metrics opentelemetry redis
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Filedb: Disk-based key-value store inspired by Bitcask

news.ycombinator.com Unknown 2025-09-13 03:45:03

filedb A key-value store inspired by Bitcask. FileDB is a Zig-implementation of Bitcask by Riak1 paper. FileDB stores record metadata in a log-structured hashtable and parallely keeps 1 disk file open for inserting records in append-only mode. On restarts or MAX_FILE_REACHED , the disk file is rotated and all the oldfiles are kept open for reading only . , the disk file is rotated and all the oldfiles are kept open for reading . A compaction process running every config.compactionInterval se

Topics: 6379 disk file redis summary
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Filedb: Disk Based Key-Value Store Inspired by Bitcask

news.ycombinator.com Unknown 2025-09-13 13:45:03

filedb A key-value store inspired by Bitcask. FileDB is a Zig-implementation of Bitcask by Riak1 paper. FileDB stores record metadata in a log-structured hashtable and parallely keeps 1 disk file open for inserting records in append-only mode. On restarts or MAX_FILE_REACHED , the disk file is rotated and all the oldfiles are kept open for reading only . , the disk file is rotated and all the oldfiles are kept open for reading . A compaction process running every config.compactionInterval se

Topics: 6379 disk file redis summary
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