update the TiUP cluster component to the latest version: tiup update --self && tiup update cluster Expected output includes “Update successfully!”. 5. Verify the current version of your TiUP cluster: tiup following command to check the status of the tidb-test cluster: tiup cluster display tidb-test Expected output includes the instance ID, role, host, listening port, and status (because the cluster is command to check the cluster status. For example: tiup cluster display tidb-test Expected output: If the Status information of each node is Up, the cluster runs normally. 4.5.1.2 Use TiDB

temporary tables to the downstream, a table definition error occurs. – The following clusters are expected to be v5.3.0 or later; otherwise, data error is reported when you create a global temporary table: issue that the SHOW VIEW permission is not required to execute SHOW CREATE �→ VIEW. Now you are expected to have the SHOW VIEW permission to execute the SHOW CREATE VIEW statement. • The system variable fewest �→ connections receives the connection. "leastconn" is recommended �→ where long sessions are expected, such as LDAP, SQL and TSE, rather �→ than protocols using short sessions, such as HTTP. The algorithm

ParallelApply is used under the TopN operator #24930 41 – Fix the issue that more results than expected are returned when executing SQL statements using multi-column prefix indexes #24356 – Fix the issue #10347 – Fix the wrong function that casts DOUBLE to DOUBLE #25200 • PD – Fix the issue that the expected scheduling cannot be generated due to scheduling conflicts among multiple schedulers #3807 #3778 TiFlash cluster can have near-linear scalability. The number of TiFlash nodes should be tuned based on expected performance and response time. * If the OLTP throughput is relatively high (for example, the write

fewest �→ connections receives the connection. "leastconn" is recommended �→ where long sessions are expected, such as LDAP, SQL and TSE, rather �→ than protocols using short sessions, such as HTTP. The algorithm fewest �→ connections receives the connection. "leastconn" is recommended �→ where long sessions are expected, such as LDAP, SQL and TSE, rather �→ than protocols using short sessions, such as HTTP. The algorithm TiFlash cluster can have near-linear scalability. The number of TiFlash nodes should be tuned based on expected performance and response time. • If the OLTP throughput is relatively high (for example, the write

v6.5.0, this feature becomes GA and is enabled by default, and the performance on large tables is expected to be about 10 times faster than that in v6.1.0. The acceleration feature is suitable for scenarios auto-increment IDs. In v6.5.0, this feature becomes GA. The insert TPS of a table using this feature is expected to exceed 20,000, and this feature supports elastic scaling to improve the write throughput of a TiFlash cluster can have near-linear scalability. The number of TiFlash nodes should be tuned based on expected performance and response time. • If the OLTP throughput is relatively high (for example, the write

fewest �→ connections receives the connection. "leastconn" is recommended �→ where long sessions are expected, such as LDAP, SQL and TSE, rather �→ than protocols using short sessions, such as HTTP. The algorithm fewest �→ connections receives the connection. "leastconn" is recommended �→ where long sessions are expected, such as LDAP, SQL and TSE, rather �→ than protocols using short sessions, such as HTTP. The algorithm TiFlash cluster can have near-linear scalability. The number of TiFlash nodes should be tuned based on expected performance and response time. * If the OLTP throughput is relatively high (for example, the write

import #46527 @qw4990 • Fix the issue that statistics for partitioned tables are not updated as expected after partitions are dropped #48182 @hi-rustin • Fix the issue that errors might be returned during TiFlash cluster can have near-linear scalability. The number of TiFlash nodes should be tuned based on expected performance and response time. • If the OLTP throughput is relatively high (for example, the write the MySQL client is installed successfully: source ~/.zshrc mysql --version An example of the expected output: 128 mysql Ver 8.0.28 for macos12.0 on arm64 (Homebrew) For Linux, the following takes

pingcap.com/tidb/v7.5/tidb- �→ resource-control#manage-queries-that-consume-more-resources-than- �→ expected-runaway-queries"> managing runaway queries (experimental �→ , introduced in v7.2.0) expected performance and response time. • If the OLTP throughput is relatively high (for example, the write the MySQL client is installed successfully: source ~/.zshrc mysql --version An example of the expected output: mysql Ver 8.0.28 for macos12.0 on arm64 (Homebrew) For Linux, the following takes CentOS

TiFlash cluster can have near-linear scalability. The number of TiFlash nodes should be tuned based on expected performance and response time. • If the OLTP throughput is relatively high (for example, the write the MySQL client is installed successfully: source ~/.zshrc mysql --version An example of the expected output: mysql Ver 8.0.28 for macos12.0 on arm64 (Homebrew) For Linux, the following takes CentOS Then, verify that the MySQL client is installed successfully: mysql --version An example of the expected output: mysql Ver 15.1 Distrib 5.5.68-MariaDB, for Linux (x86_64) using readline �→ 5.1 2. Run

rol#manage-queries-that-consume-more-resources- �→ than-expected-runaway-queries">managing queries that consume more �→ resources than expected (GA in v8.1.0) Through the rules of resource resource groups, TiDB can automatically identify �→ queries that consume more resources than expected, and then limit or �→ cancel these queries. Even if the queries are not identified by the �→ rules, you Feature details 2.2.1.1 Reliability • Support managing queries that consume more resources than expected (GA) #43691 @nolouch Sudden SQL query performance problems can cause a decline in overall database