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{ "categories" : {"problems" : "High Cost SQL Statements", "schema" : "Database Schema Statistics", "top": "Most Active Tables", "innodb" : "InnoDB Statistics", "io" : "Hot Spots for I/O", "wait": "Wait Event Times (Expert)"}, "reports" : [ {"category" : "io", "view" : "x$io_global_by_file_by_bytes", "description" : "Show the Files doing the most IOs in bytes", "caption" : "Top File I/O Activity Report", "columns" : [["File", "file", "StringLT", 200], ["Total IOs (#)", "total", "LongInteger", 80], ["Read Requests (#)", "count_read", "LongInteger", 80], ["Total Read IO", "total_read", "Bytes", 80], ["Avg Read IO", "avg_read", "Bytes", 80], ["Write Requests (#)", "count_write", "LongInteger", 80], ["Total Write IO", "total_written", "Bytes", 80], ["Avg Write IO", "avg_write", "Bytes", 80], ["Write %", "write_pct", "String", 80]] }, { "category" : "io", "view" : "x$io_global_by_file_by_latency", "description" : "Show highest IO usage by file and latency", "caption" : "Top I/O by File by Time", "columns" : [["File", "file", "StringLT", 200], ["Total IOs (#)", "total", "LongInteger", 80], ["Total Time", "total_latency", "Time", 80], ["Read Requests (#)", "count_read", "LongInteger", 80], ["Read Time", "read_latency", "Time", 80], ["Write Requests (#)", "count_write", "LongInteger", 80], ["Write Time", "write_latency", "Time", 80], ["Misc Requests (#)", "count_misc", "LongInteger", 80], ["Misc Time", "misc_latency", "Time", 80]] }, {"category" : "io", "view" : "x$io_global_by_wait_by_bytes", "description" : "Show the highest IO Data usage by event categories", "caption" : "Top I/O by Event Category", "columns" : [["IO Event Type", "event_name", "String", 200], ["Total IOs (#)", "total", "LongInteger", 80], ["Total Time", "total_latency", "Time", 80], ["Min Time", "min_latency", "Time", 80], ["Avg Time", "avg_latency", "Time", 80], ["Max Time", "max_latency", "Time", 80], ["Reads (#)", "count_read", "LongInteger", 80], ["Total Read", "total_read", "Bytes", 80], ["Avg Read", "avg_read", "Bytes", 80], ["Writes (#)", "count_write", "LongInteger", 80], ["Total Written", "total_written", "Bytes", 80], ["Avg Written", "avg_written", "Bytes", 80], ["Total Requested", "total_requested", "Bytes", 80]] }, {"category" : "io", "view" : "x$io_global_by_wait_by_latency", "description" : "Show the highest IO time consumers by event categories", "caption" : "Top I/O in Time by Event Categories", "columns" : [["IO Event Type", "event_name", "String", 200], ["Total IOs (#)", "total", "LongInteger", 80], ["Total Time", "total_latency", "Time", 80], ["Avg Time", "avg_latency", "Time", 80], ["Max Time", "max_latency", "Time", 80], ["Read Time", "read_latency", "Time", 80], ["Write Time", "write_latency", "Time", 80], ["Misc Time", "misc_latency", "Time", 80], ["Reads", "count_read", "Bytes", 80], ["Avg Read", "total_read", "Bytes", 80], ["Writes", "count_write", "Bytes", 80], ["Total Written", "total_written", "Bytes", 80], ["Avg Written", "avg_written", "Bytes", 80]] }, { "category" : "io", "view" : "x$io_by_thread_by_latency", "description" : "Show the top IO time consumers by User/thread", "caption" : "Top I/O Time by User/Thread", "columns" : [["User", "user", "String", 150], ["Thread Id", "thread_id", "LongInteger", 80], ["Process List Id", "processlist_id", "LongInteger", 80], ["Total IOs (#)", "total", "LongInteger", 80], ["Total Time", "total_latency", "Time", 80], ["Min Time", "min_latency", "Time", 80], ["Avg Time", "avg_latency", "Time", 80], ["Max Time", "max_latency", "Time", 80]] }, { "category" : "problems", "view" : "x$statement_analysis", "description" : "Lists statements with various aggregated statistics", "caption" : "Statement Analysis", "columns" : [["Query", "query", "String", 300], ["Full Table Scan", "full_scan", "String", 80], ["Executed (#)", "exec_count", "LongInteger", 80], ["Errors (#)", "err_count", "LongInteger", 80], ["Warnings (#)", "warn_count", "LongInteger", 80], ["Total Time", "total_latency", "Time", 80], ["Max Time", "max_latency", "Time", 80], ["Avg Time", "avg_latency", "Time", 80], ["Rows Sent (#)", "rows_sent", "LongInteger", 80], ["Avg. Rows Sent (#)", "rows_sent_avg", "Float", 80], ["Rows Scanned (#)", "rows_examined", "LongInteger", 80], ["Avg. Rows Scanned (#)", "rows_examined_avg", "Float", 80], ["Temp. Tables (#)", "tmp_tables", "LongInteger", 80], ["Temp. Disk Tables (#)", "tmp_disk_tables", "LongInteger", 80], ["Rows Sorted (#)", "rows_sorted", "LongInteger", 80], ["Sort Merge Passes (#)", "sort_merge_passes", "LongInteger", 80], ["Digest", "digest", "String", 100] ] }, { "category" : "problems", "view" : "x$statements_with_runtimes_in_95th_percentile", "description" : "List all statements whose average runtime, in microseconds is in highest 5 percent", "caption" : "Statements in Highest 5 Percent by Runtime", "columns" : [["Query", "query", "String", 300], ["Full Table Scan", "full_scan", "String", 50], ["Executed (#)", "exec_count", "LongInteger", 80], ["Errors (#)", "err_count", "LongInteger", 80], ["Warnings (#)", "warn_count", "LongInteger", 80], ["Total Time", "total_latency", "Time", 80], ["Maximum Time", "max_latency", "Time", 80], ["Avg Time", "avg_latency", "Time", 80], ["Rows Sent (#)", "rows_sent", "LongInteger", 80], ["Avg. Rows Sent (#)", "rows_sent_avg", "Float", 80], ["Rows Scanned (#)", "rows_examined", "LongInteger", 80], ["Avg. Rows Scanned (#)", "rows_examined_avg", "Float", 80], ["Digest", "digest", "String", 100] ] }, { "category" : "problems", "view" : "statements_with_temp_tables", "description" : "Lists all statements that use temporary tables - access the highest # of disk temporary tables, then memory temp tables", "caption" : "Using Temp Tables", "columns" : [["Query", "query", "String", 300], ["Executed (#)", "exec_count", "LongInteger", 80], ["Tmp Tables in Memory (#)", "memory_tmp_tables", "LongInteger", 80], ["Tmp Tables on Disk (#)", "disk_tmp_tables", "LongInteger", 80], ["Avg. Tmp Tables/Query (#)", "avg_tmp_tables_per_query", "Float", 80], ["Percent Tmp Tables to Disk (%)", "tmp_tables_to_disk_pct", "Float", 80], ["Digest", "digest", "String", 100] ] }, { "category" : "problems", "view" : "statements_with_sorting", "description" : "List all normalized statements that have done sorts, access in the following priority order - sort_merge_passes, sort_scans and sort_rows", "caption" : "With Sorting", "columns" : [["Query", "query", "String", 500], ["Executed (#)", "exec_count", "LongInteger", 80], ["Sort Merge Passes (#)", "sort_merge_passes", "LongInteger", 80], ["Avg Sort Merges (#)", "avg_sort_merges", "Float", 80], ["Sorts Using Scans (#)", "sorts_using_scans", "LongInteger", 80], ["Sorts Using Range (#)", "sort_using_range", "LongInteger", 80], ["Rows Sorted (#)", "rows_sorted", "LongInteger", 80], ["Avg Rows Sorted (#)", "avg_rows_sorted", "Float", 80], ["Digest", "digest", "String", 100] ] }, { "category" : "problems", "view" : "statements_with_full_table_scans", "description" : "Lists statements that have performed a full table scan. Access query performance and the where clause(s) and if no index is used, consider adding indexes for large tables", "caption" : "Full Table Scans", "columns" : [["Query", "query", "String", 300], ["Executed (#)", "exec_count", "LongInteger", 80], ["No Index Used", "no_index_used_count", "LongInteger", 80], ["No Good Index Used", "no_good_index_used_count", "LongInteger", 80], ["No Index Used %", "no_index_used_pct", "Float", 80], ["Digest", "digest", "String", 100] ] }, { "category" : "problems", "view" : "statements_with_errors_or_warnings", "description" : "List statements that have raised errors or warnings.", "caption" : "Errors or Warnings", "columns" : [["Query", "query", "String", 300], ["Executed (#)", "exec_count", "LongInteger", 80], ["Errors (#)", "errors", "LongInteger", 80], ["Error (%)", "error_pct", "Float", 50], ["Warnings (#)", "warnings", "LongInteger", 80], ["Warnings (%)", "warning_pct", "Float", 50], ["Digest", "digest", "String", 100] ] }, { "category" : "schema", "view" : "schema_object_overview", "description" : "Shows count by object type for each schema.\nNote: On instances with a large number of objects, this can take some time to execute.", "caption" : "Schema Object Overview (High Overhead)", "columns" : [["Schema", "db", "String", 150], ["Object Type", "object_type", "String", 150], ["Count", "count", "LongInteger", 80] ] }, { "category" : "schema", "view" : "x$schema_index_statistics", "description" : "", "caption" : "Schema Index Statistics", "columns" : [["Schema", "table_schema", "String", 100], ["Table", "table_name", "String", 100], ["Index", "index_name", "String", 100], ["Rows Selected (#)", "rows_selected", "LongInteger", 80], ["Select Time", "select_latency", "Time", 80], ["Rows Inserted (#)", "rows_inserted", "LongInteger", 80], ["Insert Time", "insert_latency", "Time", 80], ["Rows Updated (#)", "rows_updated", "LongInteger", 80], ["Update Time", "update_latency", "Time", 80], ["Rows Deleted (#)", "rows_deleted", "LongInteger", 80], ["Delete Time", "delete_latency", "Time", 80] ] }, { "category" : "schema", "view" : "x$schema_table_statistics", "description" : "", "caption" : "Schema Table Statistics", "columns" : [["Schema", "table_schema", "String", 100], ["Table", "table_name", "String", 100], ["Rows Fetched", "rows_fetched", "LongInteger", 80], ["Fetch Time", "fetch_latency", "Time", 80], ["Rows Inserted (#)", "rows_inserted", "LongInteger", 80], ["Insert Time", "insert_latency", "Time", 80], ["Rows Updated (#)", "rows_updated", "LongInteger", 80], ["Update Time", "update_latency", "Time", 80], ["Rows Deleted (#)", "rows_deleted", "LongInteger", 80], ["Delete Time", "delete_latency", "Time", 80], ["I/O Read Reqs (#)", "io_read_requests", "LongInteger", 80], ["I/O Read (#)", "io_read", "LongInteger", 80], ["I/O Read Time", "io_read_latency", "Time", 80], ["I/O Write Reqs (#)", "io_write_requests", "LongInteger", 80], ["I/O Write (#)", "io_write", "LongInteger", 80], ["I/O Write Time", "io_write_latency", "Time", 80], ["I/O Misc. Reqs (#)", "io_misc_requests", "LongInteger", 80], ["I/O Misc. Time", "io_misc_latency", "Time", 80] ] }, { "category" : "schema", "view" : "x$schema_table_statistics_with_buffer", "description" : "", "caption" : "Schema Table Statistics (with InnoDB buffer)", "columns" : [["Schema", "table_schema", "String", 100], ["Table", "table_name", "String", 100], ["Rows Fetched (#)", "rows_fetched", "LongInteger", 80], ["Fetch Time", "fetch_latency", "Time", 80], ["Rows Inserted (#)", "rows_inserted", "LongInteger", 80], ["Insert Time", "insert_latency", "Time", 80], ["Rows Updated (#)", "rows_updated", "LongInteger", 80], ["Update Time", "update_latency", "Time", 80], ["Rows Deleted (#)", "rows_deleted", "LongInteger", 80], ["Delete Time", "delete_latency", "Time", 80], ["I/O Read Reqs (#)", "io_read_requests", "LongInteger", 80], ["I/O Read (#)", "io_read", "LongInteger", 80], ["I/O Read Time", "io_read_latency", "Time", 80], ["I/O Write Reqs (#)", "io_write_requests", "LongInteger", 80], ["I/O Write (#)", "io_write", "LongInteger", 80], ["I/O Write Time", "io_write_latency", "Time", 80], ["I/O Misc. Reqs (#)", "io_misc_requests", "LongInteger", 80], ["I/O Misc. Time", "io_misc_latency", "Time", 80], ["Buffer Allocated", "innodb_buffer_allocated", "LongInteger", 80], ["Buffer Data", "innodb_buffer_data", "LongInteger", 80], ["Buffer Pages", "innodb_buffer_pages", "LongInteger", 80], ["Buffer Pages Hashed", "innodb_buffer_pages_hashed", "LongInteger", 80], ["Buffer Pages Old", "innodb_buffer_pages_old", "LongInteger", 80], ["Buffer Rows Cached", "innodb_buffer_rows_cached", "LongInteger", 80] ] }, { "category" : "schema", "view" : "schema_tables_with_full_table_scans", "description" : "Find tables that are being accessed by full table scans ordering by the number of rows scanned descending", "caption" : "Tables with Full Table Scans", "columns" : [["Schema", "object_schema", "String", 100], ["Object", "object_name", "String", 100], ["Full Scanned Rows (#)", "rows_full_scanned", "LongInteger", 80]] }, {"category" : "schema", "view" : "schema_unused_indexes", "description" : "List of indexes that were never used since the server started or since P_S data collection started.", "caption" : "Unused Indexes", "columns" : [["Schema", "object_schema", "String", 100], ["Object", "object_name", "String", 100], ["Index", "index_name", "String", 100]] }, { "category" : "wait", "view" : "x$waits_global_by_latency", "description" : "Lists the top wait events by their total time, ignoring idle (this may be very large)", "caption" : "Global Waits by Time", "columns" : [["Event Class", "events", "String", 200], ["Total # Events", "total", "LongInteger", 80], ["Total Time", "total_latency", "Time", 80], ["Avg Time", "avg_latency", "Time", 80], ["Max Time", "max_latency", "Time", 80]] }, { "category" : "wait", "view" : "x$waits_by_user_by_latency", "description" : "Lists the top wait events by their total time, ignoring idle (this may be very large)", "caption" : "Waits by User by Time", "columns" : [["User", "user", "String", 200], ["Event", "event", "String", 200], ["Total # Events", "total", "LongInteger", 80], ["Total Time", "total_latency", "Time", 80], ["Avg Time", "avg_latency", "Time", 80], ["Max Time", "max_latency", "Time", 80]] }, { "category" : "wait", "view" : "x$wait_classes_global_by_latency", "description" : "Lists the top wait classes by total time, ignoring idle (this may be very large)", "caption" : "Wait Classes by Time", "columns" : [["Event Class", "event_class", "String", 200], ["Total # Events", "total", "LongInteger", 80], ["Total Time", "total_latency", "Time", 80], ["Avg Time", "avg_latency", "Time", 80], ["Max Time", "max_latency", "Time", 80]] }, { "category" : "wait", "view" : "x$wait_classes_global_by_avg_latency", "description" : "Lists the top wait classes by average time, ignoring idle (this may be very large)", "caption" : "Waits Classes by Average Time", "columns" : [["Event Class", "event_class", "String", 200], ["Total # Events", "total", "LongInteger", 80], ["Total Time", "total_latency", "Time", 80], ["Avg Time", "avg_latency", "Time", 80], ["Max Time", "max_latency", "Time", 80]] }, { "category" : "innodb", "view" : "x$innodb_buffer_stats_by_schema", "description" : "Summarizes the output of the INFORMATION_SCHEMA.INNODB_BUFFER_PAGE table, aggregating by schema", "caption" : "InnoDB Buffer Stats by Schema", "columns" : [["Schema", "object_schema", "String", 200], ["Allocated", "allocated", "LongInteger", 80], ["Data", "data", "LongInteger", 80], ["Pages", "pages", "LongInteger", 80], ["Pages Hashed", "pages_hashed", "LongInteger", 80], ["Pages Old", "pages_old", "LongInteger", 80], ["Rows Cached", "rows_cached", "LongInteger", 80] ] }, { "category" : "innodb", "view" : "x$innodb_buffer_stats_by_table", "description" : "Summarizes the output of the INFORMATION_SCHEMA.INNODB_BUFFER_PAGE table, aggregating by schema and table name", "caption" : "InnoDB Buffer Stats by Table", "columns" : [["Schema", "object_schema", "String", 200], ["Table", "object_name", "String", 200], ["Allocated", "allocated", "LongInteger", 80], ["Data", "data", "LongInteger", 80], ["Pages", "pages", "LongInteger", 80], ["Pages Hashed", "pages_hashed", "LongInteger", 80], ["Pages Old", "pages_old", "LongInteger", 80], ["Rows Cached", "rows_cached", "LongInteger", 80] ] } ] }