The number of errors due to SSL problems. 

• COUNT_MAX_USER_CONNECTIONS_ERRORS 

The number of errors caused by exceeding per-user connection quotas. See Section 6.2.20, “Setting Account Resource Limits” . 

• COUNT_MAX_USER_CONNECTIONS_PER_HOUR_ERRORS 

The number of errors caused by exceeding per-user connections-per-hour quotas. See Section 6.2.20, “Setting Account Resource Limits” . 

• COUNT_DEFAULT_DATABASE_ERRORS 

The number of errors related to the default database. For example, the database does not exist or the user has no privileges to access it. 

• COUNT_INIT_CONNECT_ERRORS 

The number of errors caused by execution failures of statements in the init_connect  system variable value. 

• COUNT_LOCAL_ERRORS 

The number of errors local to the server implementation and not related to the network, authentication, or authorization. For example, out-of-memory conditions fall into this category. 

• COUNT_UNKNOWN_ERRORS 

The number of other, unknown errors not accounted for by other columns in this table. This column is reserved for future use, in case new error conditions must be reported, and if preserving the backward compatibility and structure of the host_cache  table is required. 

• FIRST_SEEN 

The timestamp of the first connection attempt seen from the client in the IP  column. 

• LAST_SEEN 

The timestamp of the most recent connection attempt seen from the client in the IP  column. 

• FIRST_ERROR_SEEN 

The timestamp of the first error seen from the client in the IP  column. 

• LAST_ERROR_SEEN 

The timestamp of the most recent error seen from the client in the IP  column. 

The host_cache  table has these indexes: 

•Primary key on ( IP ) 

•Index on ( HOST ) 

TRUNCATE TABLE  is permitted for the host_cache  table. It requires the DROP  privilege for the table. Truncating the table flushes the host cache, which has the effects described in Flushing the Host Cache. 

## 27.12.21.3 The log_status Table 

