Torrus software: Overview of challenges and new features Stanislav - - PowerPoint PPT Presentation

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Torrus software: Overview of challenges and new features Stanislav Sinyagin <ssinyagin@k-open.com> SwiNOG-16, May 14th 2008, Bern What Torrus is today Industry-proven performance monitoring solution and replacement of Cricket, Cacti,

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Torrus software:

Overview of challenges and new features

Stanislav Sinyagin <ssinyagin@k-open.com> SwiNOG-16, May 14th 2008, Bern

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14.05.2008 Stanislav Sinyagin 2

What Torrus is today

Industry-proven performance monitoring solution and replacement of Cricket, Cacti, MRTG Free, Open Source software High performance of SNMP polling Hierarchical data structure Adaptable, modular design Designed for process automation

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SNMP discovery engine

Modular design Flexible configuration IF-MIB discovery for virtually any vendor Multi-threading gains speed dramatically Extensive discovery for Cisco routers, Cisco class-based QoS, DOCSIS CMTS

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XML Configuration

Easy to generate from programs T akes time to understand T akes more time to start editing by hand Usually generated by the discovery engine, so nobody cares anyway

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Hierarchical database

Advantages: top-down inheritance; data abstraction; fast and uniform access Disadvantages: whole tree needs re- compilation after changing the XML configuration; difficult to implement the incremental compiler; some networks are difficult to model (e.g. all modems in a DOCSIS network)

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SNMP collector performance

Up to 50K SNMP objects every 5 minutes without much tuning Up to 200K SNMP objects every 5 minutes from a single server (requires careful planning and tuning, as well as hi-end hardware)

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Collector challenges

Distribute the load among all CPU cores Distribute the CPU and disk I/O load evenly in time, across the collecting interval

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Collector enhancements

Split the collecting job into smaller tasks (so- called dispersed timeoffsets) Use of multi-threading: a background thread writes to RRD files (since 2006-07-21)

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Collector enhancements (cont.)

Retrieve index mapping tables during the collecting period, and minimize the initialization time (since 2006-12-03) Run multiple collectors per tree (since 2007-06-16)

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Threshold monitor

Expressions are monitored, not just values Expressions can span multiple data sources Multiple severity levels can be defined Flexible notification paths (Email, SMS, SNMP trap, ...)

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Monthly traffic reports

5-minute counter data for selected sources is stored to the SQL database Monthly reports are generated for bandwidth average, maximum, 95th percentile, and total volume Can be used for 95th percentile billing

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Reference installations

Cablecom Bluewin Comcast Bell Canada Some U.S. government departments Few hundred smaller installations, most of which are unknown to me

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Future plans: short-term

IPv6 support Plain-text export of collected data Enhancements for distributed, multi-server installations Whatever the paying customer wants :-)

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Future plans: long-term

Incremental configuration compiler Database model suitable for dynamically changing networks (such as CPE monitoring) Granular access control Ajax-driven WebUI with custom preferences and favourites

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