Oracle
1Z0-908 · Question #44
1Z0-908 Question #44: Real Exam Question with Answer & Explanation
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Replication
Question
Examine the modified output: Seconds_Behind_ Master value is steadily growing. What are two possible causes? (Choose two.)
Options
- AThe master is most probably too busy to transmit data and the slave needs to wait for more data.
- BOne or more large tables do not have primary keys.
- CThis value shows only I/O latency and is not indicative of the size of the transaction queue.
- DThe master is producing a large volume of events in parallel but the slave is processing them
- EThe parallel slave threads are experiencing lock contention.
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Topics
#Seconds_Behind_Master metric#Replication lag analysis#Parallel replication processing#I/O latency vs queue size