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Replay without Recording of Production Bugs for Service Oriented Applications
Short time-to-localize and time-to-x for production bugs is extremely important for any 24x7 service-oriented application (SOA). …
Nipun Arora, Jonathan Bell, Franjo Ivancic, Gail Kaiser, Baishakhi Ray
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LogLens: A Real-Time Log Analysis System
Administrators of most user-facing systems depend on periodic log data to get an idea of the health and status of production …
B.Debnath, M.Solaimani, M.A.Gulzar, N.Arora, C.Lumezanu, J.Xu, B.Zong, H.Zhang, G.Jiang and L.Khan
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An Analytics Approach to Traffic Analysis in Network Virtualization
Network virtualization has been propounded as a diversifying attribute of the future inter-networking paradigm. However, monitoring and …
Hui Zhang, Junghwan Rhee, Nipun Arora, Qiang Xu, Cristian Lumezanu, Guofei Jiang
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Enabling Layer 2 Pathlet Tracing through Context Encoding in Software-Defined Networking
Troubleshooting Software-Defined Networks requires a structured approach to detect mistranslations between high-level intent (policy) …
Hui Zhang, Cristian Lumezanu, Junghwan Rhee, Nipun Arora, Qiang Xu, Guofei Jiang
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IntroPerf: Transparent Context-Sensitive Multi-Layer Performance Inference using System Stack Traces
Performance bugs are frequently observed in commodity software. While profilers or source code-based tools can be used at development …
Chung Hwan Kim, Junghwan Rhee, Hui Zhang, Nipun Arora, Guofei Jiang, Xiangyu Zhang, Dongyan Xu
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Uscope: A Scalable Unified Tracer from Kernel to User Space
Unified tracing is the process of collecting trace logs across the boundary of kernel and user spaces, and has been used to understand …
Junghwan Rhee, Hui Zhang, Nipun Arora, Kenji Yoshihira, Guofei Jiang
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CLUE: System Trace Analytics for Cloud Service Performance Diagnosis
In this paper, we present CLUE, a system event analytics tool for black-box performance diagnosis in production Cloud Computing …
Hui Zhang, Junghwan Rhee, Nipun Arora, Sahan Gamage, Guofei Jiang, Kenji Yoshihira, Dongyan Xu
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Software System Performance Debugging with Kernel Events Feature Guidance
To diagnose performance problems in production systems, many OS kernel-level monitoring and analysis tools have been proposed. Using …
Junghwan Rhee, Hui Zhang, Nipun Arora, Guofei Jiang, Kenji Yoshihira
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DeltaPath: Precise and Scalable Calling Context Encoding
Calling context provides important information for a large range of applications, such as event logging, profiling, debugging, anomaly …
Qiang Zeng, Junghwan Rhee, Hui Zhang, Nipun Arora, Guofei Jiang, Peng Liu
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HybNET: Network Manager for Hybrid Network Infrastructure
The emergence of Software-Defined Networking(SDN) has led to a paradigm shift in network management. SDN has the capability to provide …
Hui Lu, Nipun Arora, Hui Zhang, Cristian Lumezanu, Junghwan Rhee, Guofei Jiang
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