Please help tune MySQL config

Anyone can help me to check this MySQL configuration? I have a VPS 2GB RAM - 2 vcpu, installed cyberpanel from litespeed. Any help would be appreciated! my.cnf settings are: [client] port = 3306 socket = /var/run/mysqld/mysqld.sock [mysqld_safe] socket = /var/run/mysqld/mysqld.sock nice = 0 [mysqld] tmpdir = /dev/shm binlog_cache_size = 64K thread_stack = 256K max_heap_table_size = 64M join_buffer_size = 256K default_storage_engine = InnoDB performance_schema_max_table_instances = 400 performance_schema = ON innodb_io_capacity = 6000 innodb_io_capacity_max = 10000 table_definition_cache = 400 skip-external-locking key_buffer_size = 128M max_allowed_packet = 100G table_open_cache = 32000 tmp_table_size = 100M max_heap_table_size = 100M sort_buffer_size = 768K net_buffer_length = 4K read_buffer_size = 768K read_rnd_buffer_size = 512K myisam_sort_buffer_size = 8M thread_cache_size = 64 query_cache_size = 0 query_cache_type = OFF sql-mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES #skip-name-resolve max_connections = 100 max_connect_errors = 100 open_files_limit = 65535 log-bin=mysql-bin binlog_format=mixed server-id = 1 expire_logs_days = 10 slow_query_log = 1 long_query_time = 3 #log_queries_not_using_indexes=on innodb_data_file_path = ibdata1:10M:autoextend innodb_buffer_pool_size = 1024M innodb_buffer_pool_instances = 1 innodb_log_file_size = 128M innodb_file_format = Barracuda innodb_log_buffer_size = 16M innodb_flush_log_at_trx_commit = 1 innodb_lock_wait_timeout = 50 innodb_max_dirty_pages_pct = 90 innodb_read_io_threads = 2 innodb_write_io_threads = 2 [mysqldump] quick max_allowed_packet = 500M [mysql] no-auto-rehash [myisamchk] key_buffer_size = 32M sort_buffer_size = 768K read_buffer = 2M write_buffer = 2M [mysqlhotcopy] interactive-timeout **Additional information** >> MySQLTuner 1.7.13 - Major Hayden >> Bug reports, feature requests, and downloads at http://mysqltuner.com/ >> Run with '--help' for additional options and output filtering [--] Skipped version check for MySQLTuner script [OK] Logged in using credentials passed on the command line [OK] Currently running supported MySQL version 10.3.25-MariaDB-0ubuntu0.20.04.1-log [OK] Operating on 64-bit architecture -------- Log file Recommendations ------------------------------------------------------------------ [--] Log file: /var/log/mysql/error.log(8K) [OK] Log file /var/log/mysql/error.log exists [OK] Log file /var/log/mysql/error.log is readable. [OK] Log file /var/log/mysql/error.log is not empty [OK] Log file /var/log/mysql/error.log is smaller than 32 Mb [!!] /var/log/mysql/error.log contains 15 warning(s). [!!] /var/log/mysql/error.log contains 3 error(s). [--] 3 start(s) detected in /var/log/mysql/error.log [--] 1) 2021-03-05 2:08:56 0 [Note] /usr/sbin/mysqld: ready for connections. [--] 2) 2021-03-05 0:21:10 0 [Note] /usr/sbin/mysqld: ready for connections. [--] 3) 2021-03-05 0:15:52 0 [Note] /usr/sbin/mysqld: ready for connections. [--] 2 shutdown(s) detected in /var/log/mysql/error.log [--] 1) 2021-03-05 2:08:42 0 [Note] /usr/sbin/mysqld: Shutdown complete [--] 2) 2021-03-05 0:21:09 0 [Note] /usr/sbin/mysqld: Shutdown complete -------- Storage Engine Statistics ----------------------------------------------------------------- [--] Status: +Aria +CSV +InnoDB +MEMORY +MRG_MyISAM +MyISAM +PERFORMANCE_SCHEMA +SEQUENCE [--] Data in InnoDB tables: 8.7M (Tables: 291) [OK] Total fragmented tables: 0 -------- Analysis Performance Metrics -------------------------------------------------------------- [--] innodb_stats_on_metadata: OFF [OK] No stat updates during querying INFORMATION_SCHEMA. -------- Security Recommendations ------------------------------------------------------------------ [OK] There are no anonymous accounts for any database users [OK] All database users have passwords assigned [--] There are 618 basic passwords in the list. -------- CVE Security Recommendations -------------------------------------------------------------- [OK] NO SECURITY CVE FOUND FOR YOUR VERSION -------- Performance Metrics ----------------------------------------------------------------------- [--] Up for: 3h 31m 52s (99K q [7.844 qps], 3K conn, TX: 190M, RX: 22M) [--] Reads / Writes: 97% / 3% [--] Binary logging is enabled (GTID MODE: OFF) [--] Physical Memory : 1.9G [--] Max MySQL memory : 1.8G [--] Other process memory: 380.8M [--] Total buffers: 1.5G global + 2.5M per thread (100 max threads) [--] P_S Max memory usage: 89M [--] Galera GCache Max memory usage: 0B [OK] Maximum reached memory usage: 1.6G (83.55% of installed RAM) [!!] Maximum possible memory usage: 1.8G (94.64% of installed RAM) [!!] Overall possible memory usage with other process exceeded memory [OK] Slow queries: 0% (0/99K) [OK] Highest usage of available connections: 14% (14/100) [OK] Aborted connections: 0.12% (4/3349) [!!] name resolution is active : a reverse name resolution is made for each new connection and can reduce performance [OK] Query cache is disabled by default due to mutex contention on multiprocessor machines. [OK] Sorts requiring temporary tables: 0% (0 temp sorts / 33K sorts) [!!] Joins performed without indexes: 6409 [!!] Temporary tables created on disk: 54% (10K on disk / 18K total) [OK] Thread cache hit rate: 99% (14 created / 3K connections) [OK] Table cache hit rate: 98% (434 open / 440 opened) [OK] Open file limit used: 0% (61/130K) [OK] Table locks acquired immediately: 100% (1K immediate / 1K locks) [OK] Binlog cache memory access: 100.00% (2272 Memory / 2272 Total) -------- Performance schema ------------------------------------------------------------------------ [--] Memory used by P_S: 89.5M [--] Sys schema isn't installed. -------- ThreadPool Metrics ------------------------------------------------------------------------ [--] ThreadPool stat is enabled. [--] Thread Pool Size: 2 thread(s). [--] Using default value is good enough for your version (10.3.25-MariaDB-0ubuntu0.20.04.1-log) -------- MyISAM Metrics ---------------------------------------------------------------------------- [!!] Key buffer used: 18.2% (24M used / 134M cache) [OK] Key buffer size / total MyISAM indexes: 128.0M/124.0K [!!] Read Key buffer hit rate: 90.0% (20 cached / 2 reads) -------- InnoDB Metrics ---------------------------------------------------------------------------- [--] InnoDB is enabled. [--] InnoDB Thread Concurrency: 0 [OK] InnoDB File per table is activated [OK] InnoDB buffer pool / data size: 1.0G/8.7M [OK] Ratio InnoDB log file size / InnoDB Buffer pool size: 128.0M * 2/1.0G should be equal 25% [OK] InnoDB buffer pool instances: 1 [--] Number of InnoDB Buffer Pool Chunk : 8 for 1 Buffer Pool Instance(s) [OK] Innodb_buffer_pool_size aligned with Innodb_buffer_pool_chunk_size & Innodb_buffer_pool_instances [OK] InnoDB Read buffer efficiency: 99.94% (2898858 hits/ 2900641 total) [!!] InnoDB Write Log efficiency: 56.12% (747 hits/ 1331 total) [OK] InnoDB log waits: 0.00% (0 waits / 2078 writes) -------- AriaDB Metrics ---------------------------------------------------------------------------- [--] AriaDB is enabled. [OK] Aria pagecache size / total Aria indexes: 128.0M/1B [!!] Aria pagecache hit rate: 85.3% (67K cached / 9K reads) -------- TokuDB Metrics ---------------------------------------------------------------------------- [--] TokuDB is disabled. -------- XtraDB Metrics ---------------------------------------------------------------------------- [--] XtraDB is disabled. -------- Galera Metrics ---------------------------------------------------------------------------- [--] Galera is disabled. -------- Replication Metrics ----------------------------------------------------------------------- [--] Galera Synchronous replication: NO [--] No replication slave(s) for this server. [--] Binlog format: MIXED [--] XA support enabled: ON [--] Semi synchronous replication Master: OFF [--] Semi synchronous replication Slave: OFF [--] This is a standalone server -------- Recommendations --------------------------------------------------------------------------- General recommendations: Control warning line(s) into /var/log/mysql/error.log file Control error line(s) into /var/log/mysql/error.log file MySQL was started within the last 24 hours - recommendations may be inaccurate Reduce your overall MySQL memory footprint for system stability Dedicate this server to your database for highest performance. Configure your accounts with ip or subnets only, then update your configuration with skip-name-resolve=1 Adjust your join queries to always utilize indexes When making adjustments, make tmp_table_size/max_heap_table_size equal Reduce your SELECT DISTINCT queries which have no LIMIT clause Consider installing Sys schema from https://github.com/mysql/mysql-sys Variables to adjust: *** MySQL's maximum memory usage is dangerously high *** *** Add RAM before increasing MySQL buffer variables *** join_buffer_size (> 256.0K, or always use indexes with JOINs) tmp_table_size (> 200M) max_heap_table_size (> 200M)