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Monitoring MariaDB Server with bpftrace on Linux

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Monitoring MariaDB Server with bpftrace on Linux
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Problems and Solutions
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637
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CC Attribution 2.0 Belgium:
You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
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Abstract
Bpftrace is a relatively new open source tracer for modern Linux (kernels 5.x.y) for analyzing production performance problems and troubleshooting software. Basic usage of the tool, as well as bpftrace-based one liners and small scripts useful for MariaDB DBAs (and even developers) are presented. Problems of MariaDB Server dynamic tracing with bpftrace are discussed.