Table of Contents
This chapter describes the Reports and Graphs available in MySQL Enterprise Monitor.
This section describes the All Timeseries Graphs page.
This section describes the controls available on the All Timeseries Graphs page.
The Asset Selector is a treeview container on the left side of the page. It lists all the hosts to which the user has access. The hosts are organised by group.
The group displayed depend on those configured. If no groups are configured, the All group is the only group displayed, and all hosts are contained within it.
The graphs displayed depend on what is selected in the Asset Selector. The Asset Selector displays the following:
Group
Host
Instance
Network Interface
Filesystem
Agent (if installed on host)
The Asset Selector displays only those assets to which you have access.
The Asset Selector can be filtered to display specific assets. To filter the Asset Selector, click the filter icon in the top-right corner of the Asset Selector frame. The Filter field is displayed. Enter the text to filter on. The Asset Selector displays the filtered results.
To display monitored instances only, deselect the Show All Assets checkbox.
The graph filter enables you to display a subset of the available graphs.
Table 18.1 Timeseries Graph Filter
| Name | Description |
|---|---|
Graph Name |
Opens a drop-down menu listing the available search types:
|
Value |
Free text field for the search term or regular expression. |
Time Range |
Drop-down lists containing the time periods to apply to the graphs. The possible values are:
|
Filter |
Apply the defined filter. |
Save as Default |
Sets the selected group and time range as the default. It is not possible to save a date range, using From/To, as the default for a group. |
Reset to Default |
Resets the graph display to the previously saved values. |
This section describes the various actions you can perform on individual graphs.
Graph Height: slider which enables you to increase or decrease the height of the graph in pixels. This slider does not affect the values of the x or y axes, just resizes the graph.
Export as CSV: downloads a CSV containing all data currently displayed in the selected graph.
Export as PNG: generates a PNG image file of the selected graph. The image is displayed in a pop-up. To save the image, right-click and select Save image as....
Move: enables you to move the selected graph to another location on the page.
Stacked/Line: enables you to change how the graph is displayed. Line displays a line graph, while Stacked displays each data source as a solid color.
Legend: lists the sources of information displayed in the graph. The color of the name matches the line/stack used in the graph. To display individual sources, click the required source in the Legend. To highlight individual sources in the graph, hover the cursor over the source's name.
Graph Query Analysis enables you to examine the queries which were running during specific intervals. To open the Query Analyzer for a specific range on a graph, do the following:
On a graph, select a range by clicking at the required start point, and dragging the cursor across the graph until you reach the required interval endpoint and release the mouse button. This selects the range.
Two icons are displayed in the top-right corner of the selection. An x to close the selection, and a database icon. Click the database icon to open the Query Analyzer's Browse Queries page.
Browse Queries displays all the queries which were running during the defined time period. This enables you to drill down into potential query bottlenecks and performance hotspots and tune your queries accordingly.
For more information on the Query Analyzer, see Section 27.3, “Query Analyzer User Interface”.
The following are the graph types:
Individual: A single Asset has multiple data sets graphed on a chart. For example, counts of SELECT, INSERT, UPDATE, and DELETE statements on a single instance.Combined: Multiple assets have a single data set, each graphed on one chart. For example, the count of selects for each of the five MySQL instances of a group.Breakout: One (smaller) graph per Asset in a collection, showing one or more data sets on each individual graph. For example, one graph per CPU on a Host, or in a cluster.Aggregate: One graph per collection of Assets, where the data sets across all Assets are combined via an aggregation operator. For example, one graph with each of the SUM(SELECT), SUM(INSERT), SUM(UPDATE), and SUM(DELETE) across the collection. Such as the group-level Database Activity - All MySQL Instances graph.Treemap: A 2D hierarchical proportional-representation graph. See Section 18.3, “InnoDB Buffer Pool Usage” for an example.
This chapter describes the Database File I/O and Lock Waits reports.
These reports identify I/O hot spots and lock wait contention in
your application using the sys schema, thereby
enabling you to tune the performance of your queries.
The Database File I/O requires the MySQL sys
schema, which is supported on MySQL 5.6 and 5.7, only.
The sys schema is a set of views, stored
procedures, and functions, which provide access to the
instrumentation data of the Performance Schema.
The sys schema is installed by default in MySQL
5.7, but must be installed manually in earlier versions of MySQL.
On the Database File I/O and Lock Waits pages, if a compatible
MySQL instance is selected, but sys schema is
not installed, MySQL Enterprise Monitor prompts you to install it. To install
sys schema, click Install MySQL sys
schema. If the selected instance is incompatible, a
message is displayed informing you that it is not possible to run
these reports against the selected schema.
If your instance already contains a schema named
sys, you must rename it before installing
MySQL sys schema.
For information on how to install sys schema from the command line, see the installation instructions within the github repository: sys schema on GitHub.
This section describes the Database File I/O reports and graphs.
Each tab contains the following common elements:
Show n Entries: Number of entries to show per page.
Search: search the contents of the page.
Show/Hide Columns: enables you to change the column set displayed on the page by selecting or deselecting the columns.
Page Navigation: buttons enabling you to navigate the pages of the report.
For more information on the data retrieved in these reports, see the XREFTO REFMAN.
Shows the top global I/O consumers by latency, and by file. The
data is retrieved from
sys.x$io_global_by_file_by_latency, and
sorted by total latency by default.
Shows the top global I/O consumers by latency. The data is
retrieved from
sys.x$io_global_by_wait_by_latency, and
sorted by total latency, by default.
This report is a combination of report and graphs. The graphs can be redrawn based on a time range. To change the time range, select one of the range buttons. Values range from 1 hour to 1 week.
The following shows a subset of the graphs available on the I/O By Wait Type tab:
To open the Lock Waits reports, select Lock Waits from the Reports & Graphs menu.
The InnoDB Buffer Pool Usage Report displays the amount of space used in the InnoDB buffer pool and how the space is used. The report is displayed in grid format. Each block in the grid represents a particular type of data stored in the buffer pool. Click a block to display more details.
For more information on the InnoDB Buffer Pool, see InnoDB Buffer Pool Configuration and The InnoDB Buffer Pool
This report requires the
INFORMATION_SCHEMA.INNODB_BUFFER_PAGE table,
which is available in MySQL Server version 5.5.28 or higher.
To run the usage report, do the following:
Navigate to the Reports & Graphs drop-down menu.
Select InnoDB Buffer Pool Usage.
The Generate Report page is displayed.
This page displays a warning about the table and resource requirements of the report generation process and prompts you to select a MySQL Server to run the report against.
ImportantThe report can take some time to return results. If no data is returned within 2 minutes, the report times out and an error is displayed.
Select the MySQL server from the asset tree.
The Generate Report page is displayed.
Click Generate Report.
The Loading buffer pool report progress message is displayed.
NoteIf you click Reload while the report is generating, the report generation process is cancelled and restarted. If you navigate away from the progress page, the report generation process is cancelled.
The report is displayed.