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Tools for Intelligent System Management of
Very Large Computing Systems
5.1.1 channel_dumper – a tool to listen to an AMQP-channel
A tool that can attach to a particular AMQP channel, subscribe with a topic and dump every message it receives. In normal mode only the TIMaCS specific payload of the messages is dumped in a
readable format, as used inside the monitoring component. In "raw" mode the entire AMQP message is displayed.
Usage: channel_dumper [options]
Options:
-h, --help
show this help message and exit
--channel=CHANNEL
URL of channel to listen to
--raw
Dump raw AMQP messages
--topic=TOPIC
topic to subscribe, default matches all topics
5.1.2 RPC for listing the running threads
TIMaCS provides a remote procedure call for listing the running threads.
Usage:
python direct_rpc_client.py localhost list_threads
or
nc localhost 9450
list_threads
5.1.3 RPC to display channel statistics
TIMaCS provides a remote procedure call for displaying channel statistics.
Usage:
PYTHONPATH=... direct_rpc_client.py localhost channel_stats
5.2 Monitoring
The TIMaCS Monitoring Infrastructure is built out of following components and abstractions:
1. Channel: An abstraction for communication paths between monitoring components. Uses
topic based publish/subscribe semantics and currently implements a local channel (usable
among threads inside the python process) and an AMQP channel.
2. Importer: Generic metrics publisher class from which all metric generators should inherit.
Publishes to one or more channels with a hierarchy-dependent topic.
Monitoring
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