Mysql binlog_cache_size too low
Table of contents Integration Metrics. The number of internal temporary tables created by the server while executing statements flush commands mysql. The number of times that a request for a table lock could not be granted immediately and a wait was needed. If this is high and you have performance problems, you should first optimize your queries, and then either split your table or tables or use replication opened tables mysql. The number of tables that have been opened.
The number of table definitions from. If you use a large number of tables, you can create a large table definition cache to speed up opening of tables. This variable was added in MySQL 5. The number of cached. The number of open tables for all threads.
Increasing this value increases the number of file descriptors that mysqld requires. The number of internal on-disk temporary tables created by the server while executing statements. If an internal temporary table is created initially as an in-memory table but becomes too large, MySQL automatically converts it to an on-disk table open tables mysql. The number of tables that are open table locks immediate mysql. The number of times that a request for a table lock could be granted immediately innodb buffer pool bytes dirty mysql.
The total current number of bytes held in dirty pages in the InnoDB buffer pool innodb buffer pool reads mysql. The number of logical reads that InnoDB could not satisfy from the buffer pool, and had mysql binlog_cache_size too low read directly from the disk innodb buffer pool pages free mysql. The number of free pages in the InnoDB buffer pool innodb buffer pool pages total mysql.
The total size of the InnoDB buffer pool, in pages mysql binlog_cache_size too low buffer pool read ahead evicted mysql. The number of pages read into the InnoDB buffer pool by the read-ahead background thread that were subsequently evicted without having been accessed by queries.
The current number of dirty pages in the InnoDB buffer pool innodb buffer pool write requests mysql. The number writes done to the InnoDB buffer pool innodb buffer pool pages misc mysql.
The number of pages in the Mysql binlog_cache_size too low buffer pool that are busy because they have been allocated for administrative overhead, such as row locks or the adaptive hash index innodb buffer pool pages flushed mysql. The number of requests to flush pages from the InnoDB buffer pool innodb buffer pool size mysql. The size in bytes of the buffer pool, the memory area where InnoDB mysql binlog_cache_size too low table and index data innodb buffer pool read ahead mysql.
The number of pages read into the InnoDB buffer pool by the read-ahead background thread. The number of sequential read-aheads initiated by InnoDB.
This happens when InnoDB does a sequential full table scan innodb buffer pool bytes data mysql. The total number of bytes in the InnoDB buffer pool containing data. The number includes both dirty and clean pages innodb mysql binlog_cache_size too low pool read ahead rnd mysql.
This happens when a query scans a mysql binlog_cache_size too low portion of a table but in random order innodb buffer pool wait free mysql. Normally, writes to the InnoDB buffer pool happen in the background. However, if it is necessary mysql binlog_cache_size too low read or create a page and no clean pages are available, it is also necessary to wait for pages to mysql binlog_cache_size too low flushed first.
This counter counts instances of these waits. If the buffer pool size has been set properly, this value should be small. The number of logical read requests innodb buffer pool pages data mysql.
The number of pages in the InnoDB buffer pool containing data. The number includes both dirty and clean pages innodb read ahead threshold mysql.
Controls the sensitivity of linear read-ahead that InnoDB uses to prefetch pages into the buffer pool. The permissible range of values is 0 to The default is InnoDB must read at least 56 pages sequentially from an extent to initiate an asynchronous read for the following extent innodb row lock waits mysql. The number of times a row lock had to be waited for innodb data pending writes mysql. The current number of pending writes innodb page size mysql. The number of pages written innodb data read mysql.
The amount of data read innodb os log pending writes mysql. The number of pending log file writes innodb pages read mysql. The mysql binlog_cache_size too low of pages read innodb row lock time avg mysql.
The average time to acquire a row lock innodb log write requests mysql. The number of log write requests innodb log buffer size mysql binlog_cache_size too low. The size in bytes of the buffer that InnoDB uses to write to the log files on disk. The default value is 8MB. A large log buffer enables large transactions to run without a need to write the log to disk before the mysql binlog_cache_size too low commit.
The number of data reads innodb data pending reads mysql. The current number of pending reads innodb log mysql binlog_cache_size too low size mysql. The size in bytes of each log file in a log group innodb os log pending fsyncs mysql. The number of pending log file fsync operations innodb log writes mysql. The number of physical writes to the log file innodb pages created mysql. The number of pages created innodb row lock time max mysql. The maximum time to acquire a row lock innodb data written mysql.
The amount of data written in bytes innodb data fsyncs mysql binlog_cache_size too low. The number of fsync operations innodb row lock current waits mysql. The number of row locks currently being waited for innodb data pending fsyncs mysql. The current number of pending fsync operations innodb row lock time mysql. The total time spent in acquiring row locks innodb os log written mysql.
The number of bytes written to the log file innodb dblwr pages written mysql. The number of pages that have been written mysql binlog_cache_size too low doublewrite operations innodb dblwr writes mysql. Mysql binlog_cache_size too low number of doublewrite operations that have been performed innodb log waits mysql.
The number of times that the log buffer was too small and a wait was required for it to be flushed before continuing innodb rows inserted mysql. The number of rows inserted into InnoDB tables mysql binlog_cache_size too low os log fsyncs mysql. The number of fsync writes done to the log file innodb rows deleted mysql.
The number of rows deleted from InnoDB tables innodb data writes mysql. The number of data writes innodb rows read mysql. Mysql binlog_cache_size too low number of rows read from InnoDB tables innodb rows updated mysql. The number of rows updated in InnoDB tables select range check mysql.
The number of joins without keys that check for key usage after each row. If this is not 0, you should carefully check the indexes of your tables queries mysql.
The number of statements executed by the server. This variable includes statements executed within stored programs, unlike the Questions variable. The number of joins that did a full scan of the mysql binlog_cache_size too low table slow queries mysql. This counter increments regardless of whether the slow query log is enabled not flushed delayed rows mysql. The number of sorts that were done by scanning the table select full join mysql.
The number of joins that perform table scans because they do not use indexes. If this value is not 0, you should carefully check the indexes of your tables sort rows mysql. The number of sorted rows sort merge passes mysql. The number of merge passes that the sort algorithm has had to do. The number of joins that used mysql binlog_cache_size too low range search on a reference table select range mysql.
The number of joins that used ranges on the mysql binlog_cache_size too low table. This is normally not a critical issue even if the value is quite large delayed insert threads mysql. This variable limits the total number of prepared statements in the server. The sum of the number of prepared statements across all sessions long query time mysql. If you are using the --log-slow-queries option, the query is logged to the slow query log file.
This value is measured in real time, not CPU time, so a query that is under the threshold on a lightly loaded system might be above the threshold on a heavily loaded one max length for sort data mysql. The mysql binlog_cache_size too low on the size of index values that determines which filesort algorithm to use delayed errors mysql.
The number of sorts that were done using ranges sort buffer size mysql. Each session that needs to do a sort allocates a buffer of mysql binlog_cache_size too low size. As of MySQL 5. The current number of prepared statements. The number of bytes to use when sorting data values.
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