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If using the Cacti Performance Booster and choosing a memory storage engine, you have to be careful to flush your Performance Booster buffer before the system runs out of memory table space. This is done two ways, first reducing the size of your output column to just the right size. This column is in the tables poller_output, and poller_output_boost. The second thing you can do is allocate more memory to memory tables. We have arbitrarily chosen a recommended value of 10%% of system memory, but if you are using SSD disk drives, or have a smaller system, you may ignore this recommendation or choose a different storage engine. You may see the expected consumption of the Performance Booster tables under Console -> System Utilities -> View Boost Status.
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When executing subqueries, having a larger temporary table size, keep those temporary tables in memory.
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Cuando se ejecutan sub consultas, teniendo una tabla temporal de gran tamaño, conserva esas tablas temporales en memoria.
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When performing joins, if they are below this size, they will be kept in memory and never written to a temporary file. As this is a per connection memory allocation, care must be taken not to increase it too high. The sum of the join_buffer_size + sort_buffer_size + read_buffer_size + read_rnd_buffer_size + thread_stack + binlog_cache_size + Core MySQL/MariaDB memory should be below 80%. If the recommendation is negative, you must decrease this and or the sort_buffer_size until the recommendation fits within the allowable memory.
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When using InnoDB storage it is important to keep your table spaces separate. This makes managing the tables simpler for long time users of %s. If you are running with this currently off, you can migrate to the per file storage by enabling the feature, and then running an alter statement on all InnoDB tables.
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Cuando use almacenamiento InnoDB es importante conservar el espacio de sus tablas separado. Esto hace que manejar las tablas sea más simple a largo plazo para usuarios de %s. Si se está ejecutando sin esto actualmente, puede migrar al almacenamiento por archivo habilitando la funcionalidad, y luego ejecutando una instrucción ALTER a todas las tablas InnoDB.
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When using innodb_file_per_table, it is important to set the innodb_file_format to Barracuda. This setting will allow longer indexes important for certain Cacti tables.
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Cuando se utiliza el archivo_de_innodb_por_tabla, es importante establecer el formato_de_archivo_de_innodb en Barracuda. Esta configuración permitirá índices más largos, importantes para ciertas tablas de Cacti.
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If your tables have very large indexes, you must operate with the Barracuda innodb_file_format and the innodb_large_prefix equal to 1. Failure to do this may result in plugins that can not properly create tables.
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Si sus tablas tienen índices muy grandes, debe operar con Barracuda innodb_file_format y innodb_large_prefix igual a 1. Si no lo hace, es posible que los complementos no puedan crear tablas correctamente.
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InnoDB will hold as much tables and indexes in system memory as is possible. Therefore, you should make the innodb_buffer_pool large enough to hold as much of the tables and index in memory. Checking the size of the /var/lib/mysql/cacti directory will help in determining this value. We are recommending 25%% of your systems total memory, but your requirements will vary depending on your systems size.
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This settings should remain ON unless your Cacti instances is running on either ZFS or FusionI/O which both have internal journaling to accomodate abrupt system crashes. However, if you have very good power, and your systems rarely go down and you have backups, turning this setting to OFF can net you almost a 50% increase in database performance.
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Esta configuración debe permanecer ENCENDIDA a menos que sus instancias de Cacti se estén ejecutando en ZFS o FusionI / O, que tienen registros internos para adaptarse a fallas abruptas del sistema. Sin embargo, si tiene muy buena energía, y sus sistemas rara vez fallan y tiene copias de seguridad, desactivar esta configuración puede generar un aumento de casi un 50% en el rendimiento de la base de datos.
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This is where metadata is stored. If you had a lot of tables, it would be useful to increase this.
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Esto es donde se almacenan los Metadatos. Si tuvieras un montón de tablas, sería útil incrementar este valor.
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Rogue queries should not for the database to go offline to others. Kill these queries before they kill your system.
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La base de datos podría quedar inaccesible debido a consultas no autorizadas. Elimina estas consultas no autorizadas antes de que afecten su sistema.
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Maximum I/O performance happens when you use the O_DIRECT method to flush pages.
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El máximo rendimiento de E/S se produce cuando se utiliza el método O_DIRECT para enjuagar las páginas.
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Setting this value to 2 means that you will flush all transactions every second rather than at commit. This allows %s to perform writing less often.
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Especificando este valor a 2 significa que vaciarás toda las transacciones cada segundo en lugar de cada consolidación. Esto permite a %s realizar escritura no tan seguido.
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With modern SSD type storage, having multiple io threads is advantageous for applications with high io characteristics.
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Con almacenamiento moderno SSD, teniendo multiples threads de entrada y salida es ventajoso para aplicaciones caracterizadas por gran uso de operaciones de entrada y salida.
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As of %s %s, the you can control how often %s flushes transactions to disk. The default is 1 second, but in high I/O systems setting to a value greater than 1 can allow disk I/O to be more sequential
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A partir de %s %s, puede controlar cuan frecuente %s vuelca las transacciones a disco. Por defecto es 1 segundo, pero en sistemas de alto I/O, especificar un valor superior a 1 puede permitir que los I/O de disco sean más secuenciales
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With modern SSD type storage, having multiple read io threads is advantageous for applications with high io characteristics. Depending on your MariaDB/MySQL versions, this value can go as high as 64. But try to keep the number less than your total SMT threads on the database server.
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Con tipos de almacenamiento moderno SSD, teniendo múltiples procesos I/O de lectura es ventajoso para aplicaciones caracterizadas por gran uso de operaciones de entrada y salida.
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With modern SSD type storage, having multiple write io threads is advantageous for applications with high io characteristics. Depending on your MariaDB/MySQL versions, this value can go as high as 64. But try to keep the number less than your total SMT threads on the database server.
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Con tipos de almacenamiento moderno SSD, teniendo múltiples procesos I/O de escritura es ventajoso para aplicaciones caracterizadas por gran uso de operaciones de entrada y salida.
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%s will divide the innodb_buffer_pool into memory regions to improve performance for versions of MariaDB less than 10.5. The max value is 64, but should not exceed more than the number of CPU cores/threads. When your innodb_buffer_pool is less than 1GB, you should use the pool size divided by 128MB. Continue to use this equation up to the max the number of CPU cores or 64.
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%s dividirá innodb_buffer_pool en regiones de memoria para mejorar el rendimiento. El valor máximo es 64. Cuando innodb_buffer_pool es inferior a 1GB, debería usar el tamaño del pool dividido por 128MB. Siga usando esta ecuación basándose en un máximo de 64.
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%s will divide the innodb_buffer_pool into memory regions to improve performance for versions of MySQL upto and including MySQL 8.0. The max value is 64, but should not exceed more than the number of CPU cores/threads. When your innodb_buffer_pool is less than 1GB, you should use the pool size divided by 128MB. Continue to use this equation up to the max of the number of CPU cores or 64.
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%s dividirá innodb_buffer_pool en regiones de memoria para mejorar el rendimiento. El valor máximo es 64. Cuando innodb_buffer_pool es inferior a 1GB, debería usar el tamaño del pool dividido por 128MB. Siga usando esta ecuación basándose en un máximo de 64.
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If you have SSD disks, use this suggestion. If you have physical hard drives, use 200 * the number of active drives in the array. If using NVMe or PCIe Flash, much larger numbers as high as 100000 can be used.
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Si tiene discos SSD, utilice esta sugerencia. Si tiene discos duros físicos, use 200 * el número de unidades activas en el arreglo. Si se utiliza NVMe o PCIe Flash, se pueden utilizar números mucho más grandes de hasta 100000.
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If you have SSD disks, use this suggestion. If you have physical hard drives, use 2000 * the number of active drives in the array. If using NVMe or PCIe Flash, much larger numbers as high as 200000 can be used.
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Si tiene discos SSD, utilice esta sugerencia. Si tiene discos duros físicos, use 2000 * el número de discos activos en el arreglo. Si se utiliza NVMe o PCIe Flash, se pueden utilizar números mucho más grandes de hasta 200000.
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