Replication stops after one hour or so

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Agenda and notes from day 2 of the MariaDB Developer Meeting in Athens, Greece.

Agenda

TimeMain TrackSide Track
09:00‑10:00Email & Hacking time (Public)
10:00-11:00GIS in MariaDB: Current status, upcoming milestones. (Public)
11:00‑11:15Small break
11:15-12:30Replication in MariaDB (Public)
12:30‑13:30Lunch
13:30‑14:00Email and hacking time.
14:00‑15:15Xentio Presentation (Public)
15:15‑15:45Coffee break
15:45-16:30MariaDB 5.3: Technical Status (Public)
16:30-17:30MariaDB 5.5: Planning (features, release theme, release dates, etc...) (Public)

Printed Schedule (pdf)

Notes

Answer Answered by Martin Trenz in this comment.

The problem stemmed from a table with 390000 records without a primary index that is replicated row-based. InnoDB creates a invisible primary key (six bytes, basically the row-number) but this key is not replicated. Therefor every DELETE leads to a full table scan on the slave. Transaction-Encapsulation lead to the impression of absolute standstill.

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