Section 5.9.1.4, “Debugging mysqld under gdb” Section 14.4, “Dictionary Object Cache” Section B.3.2.16, “File Not Found and Similar Errors” Section 8.4.3.1, “How MySQL Opens and Closes Tables” Section 27.15, “Performance Schema System Variables” Section 6.2.2, “Privileges Provided by MySQL” Section 5.1.10, “Server Status Variables” Section 5.1.8, “Server System Variables” Section 27.12.21.5, “The processlist Table” Section 5.6.3.3, “Thread Pool Operation” Section B.3.2.5, “Too many connections” Section 1.3, “What Is New in MySQL 8.0” Section 20.5.6.2, “X Plugin Options and System Variables” 

## max_delayed_threads 

Section 5.1.8, “Server System Variables” 

## max_digest_length 

Section 12.14, “Encryption and Compression Functions” Section 8.12.3.1, “How MySQL Uses Memory” Section 27.10, “Performance Schema Statement Digests and Sampling” Section 27.15, “Performance Schema System Variables” Section 5.1.8, “Server System Variables” Section 6.4.7.3, “Using MySQL Enterprise Firewall” 

## max_error_count 

Section 2.11.4, “Changes in MySQL 8.0” Section 13.2.7, “LOAD DATA Statement” Section 13.6.7.4, “RESIGNAL Statement” Section 5.1.8, “Server System Variables” Section 13.7.7.17, “SHOW ERRORS Statement” Section 13.7.7.42, “SHOW WARNINGS Statement” Section 13.6.7.7, “The MySQL Diagnostics Area” 

## max_execution_time 

Section 8.9.3, “Optimizer Hints” Section 5.1.10, “Server Status Variables” Section 5.1.8, “Server System Variables” Section 13.2.15, “WITH (Common Table Expressions)” 

## max_heap_table_size 

Section 8.12.3.1, “How MySQL Uses Memory” Section 8.4.4, “Internal Temporary Table Use in MySQL” Section 8.4.6, “Limits on Table Size” Section 17.5.1.21, “Replication and MEMORY Tables” Section 17.5.1.39, “Replication and Variables” Section 13.6.6.5, “Restrictions on Server-Side Cursors” Section 5.1.8, “Server System Variables” Section 16.3, “The MEMORY Storage Engine” 

## max_insert_delayed_threads 

Section 5.1.8, “Server System Variables” 

