CassandraMetriccassandra_client_request_write_time_50p
Local write latency for a given tableDimensions:None
Interface Metrics (3)
OpenTelemetryDimensions:None
Sources
Knowledge Base (6 documents, 0 chunks)
guideCritical Cassandra Performance Metrics to Monitor - Sematext2324 wordsscore: 0.95This comprehensive guide explains critical Cassandra performance metrics to monitor, covering node availability, compaction metrics, read/write performance, table-level metrics including partition size and tombstones, and cache utilization. It provides context on Cassandra architecture and explains why each metric category matters for cluster health and performance.
guideApache Cassandra Monitoring with OpenTelemetry [including dashboards and alerts] | SigNoz3733 wordsscore: 0.95Comprehensive guide on monitoring Apache Cassandra using OpenTelemetry for metrics collection. Covers the complete architecture from JMX metrics exposure to OTel Collector integration with SigNoz, and provides detailed explanations of critical production metrics including latency, compaction, storage, and JVM health indicators.
troubleshootingLatency Troubleshooting and Monitoring in Amazon Keyspaces for Apache Cassandra | AWS re:Post1535 wordsscore: 0.65This AWS re:Post article provides troubleshooting methodology for diagnosing and reducing latency issues in Amazon Keyspaces (a Cassandra-compatible service). It covers techniques for measuring end-to-end latency, distinguishing network vs service-level delays, and using CloudWatch metrics for monitoring, though it focuses on AWS-specific tooling rather than native Cassandra metrics.
blog postCassandra ClientRequest metrics519 wordsscore: 0.95This page provides detailed guidance on Cassandra ClientRequest metrics, explaining how to access them via JMX, nodetool, and external systems like Graphite. It covers the specific latency metrics for Read, Write, CASRead, and CASWrite operations, including percentiles, and explains what these metrics measure and what they exclude.
troubleshootingbigdata - Cassandra low read performance with high SSTable count - Stack Overflow1958 wordsscore: 0.72A Stack Overflow question discussing Cassandra read performance issues related to high SSTable count. The discussion covers interpreting nodetool cfstats output, understanding SSTable distribution, and recommendations for compaction strategy selection (SizeTieredCompactionStrategy vs LeveledCompactionStrategy) to improve read performance.
best practicesBest Practices for Optimal Performance in Azure Managed Instance for Apache Cassandra | Microsoft Learn1980 wordsscore: 0.75This Microsoft Learn article provides best practices for optimizing performance in Azure Managed Instance for Apache Cassandra. It covers configuration recommendations for analytical vs. transactional workloads, monitoring CPU, disk, and network performance bottlenecks, and scaling strategies.
Related Insights (2)
Thread Pool Saturation Causing Backpressurewarning
When Cassandra's internal thread pools (read, mutation, request, compaction) become saturated with blocked tasks, new requests queue up or fail despite available system CPU. This creates latency spikes before visible service degradation.
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Memtable Flush Storms Blocking Write Pathwarning
Excessive cassandra_memtable_switch and cassandra_table_pending_flushes indicate memtables are flushing too frequently, consuming I/O bandwidth and creating write latency spikes. This often results from undersized memtables or write bursts.
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