Incontrol startup manager1/4/2024 However, it could be difficult to know where the line is drawn at times – how many rows/GB are reasonable? If you monitor the table locks, this could help you figure out which tables that need overseeing and perhaps a bit cleansing in order to attain better performance. As mentioned in the previous subheading, it’s definitely a good idea to keep the tables to a healthy size, for precautional purposes. Large database tables, especially those frequently used, can have a big effect on the general experience of the system’s performance. IIS: How’s the response time looking? Are there requests that are hanging for unreasonably long that need to be checked on? Do these requests have a direct connection to the related issues in the database? Perhaps during certain hours of the day?.This could be very useful information to have when troubleshooting. Monitor this to discover anomalies in transferred data per time unit (especially when very little data is being transferred). Network usage: This may also be a point of interest.Memory usage: How is the memory usage looking when the most memory-demanding functions are running? Is it borderline?.Can the hard drive keep up with reading and writing or just barely complete the task? It may also be interesting to see what SMART has to say about the hard drives. Hard drive I/O: This depends a little bit on what the hard drive set-up looks like.Hard drive usage: Monitoring the hard drive usage is certainly very important when the disc storage is full, it’s likely that many functions both in applications and the OS start having issues operating normally.CPU usage/Average Load: It’s interesting to watch the trends for CPU/loadavg to determine if the available CPU performance is enough for the growing data handled by the system.Some examples of things that could be sensible to monitor are: Under-dimensioned resources can otherwise affect the performance. ![]() Health Checks from an Environmental and Performance PerspectiveĪpart from the database itself, it’s also important that the database is operating in an environment where surrounding factors and resources are also healthy and regularly monitored. We’re careful to make sure that the database health in your system is good – both for functional purposes and user experience! If you find this tricky, feel free to discuss this with us at Netadmin. You certainly want to avoid taking backups on corrupt/broken tables. CHECK TABLE is actually performed on the tables. To ensure the health of the database tables it’s also good to verify that e.g. This way you’ll get a feel for whether the growth rate increases when e.g. Regarding the growth rate, you can of course make graphs with help from extracted data from the above mentioned table at regular time intervals. Doing so, you will obtain good information about the effect large tables have on performance with MySQL’s own slow-query-logger (more about this further down). For example, is it reasonable to have close to 100 million rows in one table? Can the size be argued for by saying that the data is actually used, or should a cleansing be considered? It is even more interesting to consider how reasonable the number of rows is in a table with very frequently used data. ![]() This will give you a feel for what the current situation is and whether there are any anomalies. For table-size and the number of rows, it’s easy to follow the growth by, for example, checking DATA_LENGTH and TABLE_ROWS in INFORMATION_SCHEMA.TABLES. Various other resources like CPU, memory and hard drives are also affected by this as the data grows.Īs the tables in the databases grow larger and larger, the importance of controlling size and growth rate increases. If you’re not in control of their growth, this could lead to performance issues in the long run this could be in form of long loading times for users, scripts, API-requests and robots. New data is written practically all the time to the database tables, as a result, these tables usually become bigger and bigger. ![]() A recommendation is to monitor this, and to have regular check-ups to see that the monitoring truly works. You can’t forget about the importance of regularly controlling the database and the much vital health of its environment. One of the things considered most important in this business is data. When we’re busy, it may at times be easy to forget certain things that really shouldn’t be forgotten.
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