pt-heartbeat should use show slave status to determine master server-id in 5.5
Bug #923950 reported by
Ryan Lowe
This bug report is a duplicate of:
Bug #1365024: pt-heartbeat should detect master-server-id.
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This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
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Percona Toolkit moved to https://jira.percona.com/projects/PT |
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Bug Description
As per the summary, the output of SHOW SLAVE STATUS includes the master server id, which should probably be used to get the value. This is especially helpful in 5.1->5.5 replication
tags: | added: mysql-5.5 pt-heartbeat |
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It's a good question what the right default behavior is. Do you want to know the lag relative to the server's master, or to the master's master's master... what if the server is way down the replication chain? I think the best default behavior is to simply show the max lag relative to any of the masters.