grastate.dat and other percona xtradb cluster files not properly addressed in documentation

Bug #1425918 reported by Mario Splivalo on 2015-02-26
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Percona XtraDB Cluster moved to https://jira.percona.com/projects/PXC
Status tracked in 5.6
5.5
Fix Released
Undecided
Hrvoje Matijakovic
5.6
Fix Released
Undecided
Hrvoje Matijakovic

Bug Description

There is no explanation on what grastate.dat file contain, under what circumstances it is created, is it ever removed, and so on. The documentation on the web (http://www.percona.com/doc/percona-xtradb-cluster/5.5/wsrep-files-index.html) states that the file is there, shows its content, but there is no explanation on what various fields do.

For instance, seqno: describes the last 'written' sequence number for that particular node. I'm only assuming that -1 means some sort of an error, but I am not 100% clear on what 0 is - is it that the cluster was never written to since the bootstrap, or just since the reboot of that particular unit?

An explanation/description of those in the PXC manual is, imho, essential.

Tags: doc Edit Tag help
tags: added: doc

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PXC-1805

To post a comment you must log in.
This report contains Public information  Edit
Everyone can see this information.

Other bug subscribers