求救：mysql经常连接不上，附status
新手来的，请高手们帮分析一下，我该如何去优化mysql。mysql> show status;
+-----------------------------------+----------+
| Variable_name | Value |
+-----------------------------------+----------+
| Aborted_clients | 1682 |
| Aborted_connects | 15 |
| Binlog_cache_disk_use | 0 |
| Binlog_cache_use | 0 |
| Bytes_received | 132 |
| Bytes_sent | 347 |
| Com_admin_commands | 0 |
| Com_assign_to_keycache | 0 |
| Com_alter_db | 0 |
| Com_alter_db_upgrade | 0 |
...
| Com_show_slave_status | 0 |
| Com_show_status | 1 |
| Com_show_storage_engines | 0 |
...
| Com_xa_start | 0 |
| Compression | OFF |
| Connections | 94191 |
| Created_tmp_disk_tables | 0 |
| Created_tmp_files | 9610 |
| Created_tmp_tables | 0 |
| Delayed_errors | 0 |
| Delayed_insert_threads | 0 |
| Delayed_writes | 0 |
| Flush_commands | 1 |
| Handler_commit | 0 |
...
| Handler_write | 0 |
| Innodb_buffer_pool_pages_data | 64 |
| Innodb_buffer_pool_pages_dirty | 0 |
| Innodb_buffer_pool_pages_flushed| 1 |
| Innodb_buffer_pool_pages_free | 1344 |
| Innodb_buffer_pool_pages_misc | 0 |
| Innodb_buffer_pool_pages_total | 1408 |
| Innodb_buffer_pool_read_ahead_rnd | 1 |
| Innodb_buffer_pool_read_ahead_seq | 0 |
| Innodb_buffer_pool_read_requests| 5179 |
| Innodb_buffer_pool_reads | 13 |
| Innodb_buffer_pool_wait_free | 0 |
| Innodb_buffer_pool_write_requests | 1 |
| Innodb_data_fsyncs | 7 |
| Innodb_data_pending_fsyncs | 0 |
| Innodb_data_pending_reads | 0 |
| Innodb_data_pending_writes | 0 |
| Innodb_data_read | 3231744|
| Innodb_data_reads | 74 |
| Innodb_data_writes | 7 |
| Innodb_data_written | 35328 |
| Innodb_dblwr_pages_written | 1 |
| Innodb_dblwr_writes | 1 |
| Innodb_log_waits | 0 |
| Innodb_log_write_requests | 0 |
| Innodb_log_writes | 2 |
| Innodb_os_log_fsyncs | 5 |
| Innodb_os_log_pending_fsyncs | 0 |
| Innodb_os_log_pending_writes | 0 |
| Innodb_os_log_written | 1024 |
| Innodb_page_size | 16384 |
| Innodb_pages_created | 0 |
| Innodb_pages_read | 64 |
| Innodb_pages_written | 1 |
| Innodb_row_lock_current_waits | 0 |
| Innodb_row_lock_time | 0 |
| Innodb_row_lock_time_avg | 0 |
...
| Key_blocks_not_flushed | 0 |
| Key_blocks_unused | 10630 |
| Key_blocks_used | 3294 |
| Key_read_requests | 22348528 |
| Key_reads | 70568 |
| Key_write_requests | 43767 |
| Key_writes | 30968 |
| Last_query_cost | 0.000000 |
| Max_used_connections | 33 |
| Not_flushed_delayed_rows | 0 |
| Open_files | 348 |
| Open_streams | 0 |
| Open_table_definitions | 256 |
| Open_tables | 181 |
| Opened_files | 33188 |
| Opened_table_definitions | 0 |
| Opened_tables | 0 |
| Prepared_stmt_count | 0 |
| Qcache_free_blocks | 1187 |
| Qcache_free_memory | 3827136|
| Qcache_hits | 418546 |
| Qcache_inserts | 378420 |
| Qcache_lowmem_prunes | 52700 |
| Qcache_not_cached | 2041 |
| Qcache_queries_in_cache | 2762 |
| Qcache_total_blocks | 7143 |
| Queries | 1214435|
| Questions | 3 |
| Rpl_status | NULL |
| Select_full_join | 0 |
...
| Slave_retried_transactions | 0 |
| Slave_running | OFF |
| Slow_launch_threads | 0 |
...
| Ssl_session_cache_mode | NONE |
| Ssl_session_cache_overflows | 0 |
...
| Ssl_version | |
| Table_locks_immediate | 488358 |
| Table_locks_waited | 873 |
| Tc_log_max_pages_used | 0 |
| Tc_log_page_size | 0 |
| Tc_log_page_waits | 0 |
| Threads_cached | 16 |
| Threads_connected | 1 |
| Threads_created | 510 |
| Threads_running | 1 |
| Uptime | 59909 |
| Uptime_since_flush_status | 59909 |
+-----------------------------------+----------+
291 rows in set (0.00 sec) 因限长度关系，将一些值为 0 的全部去掉了。 mysql经常连接不上， 是怎么连接不上？ 提示什么？
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