What should you do?

Your customer has a global chat application that uses a multi-regional Cloud Spanner instance. The application has recently experienced degraded performance after a new version of the application was launched. Your customer asked you for assistance. During initial troubleshooting, you observed high read latency .

What should you do?
A . Use query parameters to speed up frequently executed queries.
B. Change the Cloud Spanner configuration from multi-region to single region.
C. Use SQL statements to analyze SPANNER_SYS.READ_STATS* tables.
D. Use SQL statements to analyze SPANNER_SYS.QUERY_STATS* tables.

View Answer

Answer: C