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Displaying posts with tag: Percona Monitoring and Management (reset)
Percona Monitoring and Management 1.5.2 Is Now Available

Percona announces the release of Percona Monitoring and Management 1.5.2. This release contains fixes to bugs found after Percona Monitoring and Management 1.5.1 was released.

Bug fixes

  • PMM-1790QAN displayed query metrics even for a host that was not configured for mysql:queries or mongodb:queries. We have fixed the behaviour to display an appropriate warning message when there are no query metrics for the selected host.
  • PMM-1826: If PMM Server 1.5.0 is deployed via Docker, the Update button would not upgrade the instance to a later release.
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Internal Temporary Tables in MySQL 5.7

In this blog post, I investigate a case of spiking InnoDB Rows inserted in the absence of a write query, and find internal temporary tables to be the culprit.

Recently I was investigating an interesting case for a customer. We could see the regular spikes on a graph depicting “InnoDB rows inserted” metric (jumping from 1K/sec to 6K/sec), however we were not able to correlate those spikes with other activity. The

innodb_row_inserted

 graph (picture from PMM demo) looked similar to this (but on a much larger scale):

Other graphs (Com_*, Handler_*) did not show any spikes like that. I’ve examined the logs (we were not able to enable general log or change the threshold of the slow log), performance_schema, triggers, stored procedures, prepared statements and even reviewed the binary logs. However, I was not able to find any single …

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Percona Monitoring and Management 1.5: QAN in Grafana Interface

In this post, we’ll examine how we’ve improved the GUI layout for Percona Monitoring and Management 1.5 by moving the Query Analytics (QAN) functions into the Grafana interface.

For Percona Monitoring and Management users, you might notice that QAN appears a little differently in our 1.5 release. We’ve taken steps to unify the PMM interface so that it feels more natural to move from reviewing historical trends in Metrics Monitor to examining slow queries in QAN.  Most significantly:

  1. QAN moves from a stand-alone application into Metrics Monitor as a dashboard application
  2. We updated the color scheme of QAN to match Metrics Monitor (but you can toggle a button if you prefer to still see QAN in white!)
  3. Date picker and host selector now use the same methods as Metrics Monitor

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Percona Monitoring and Management 1.5.1 Is Now Available

Percona announces the release of Percona Monitoring and Management 1.5.1. This release contains fixes for bugs found after Percona Monitoring and Management 1.5.0 was released.

Bug fixes

  • PMM-1771: When upgrading PMM to 1.5.0 using Docker commands, PMM System SummaryPMM Add InstancePMM Query Analytics dashboards were not available.
  • PMM-1761: The PMM Query Analytics dashboard did not display the list of hosts correctly.
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Percona Monitoring and Management 1.5.0 Is Now Available

Percona announces the release of Percona Monitoring and Management 1.5.0 on November 28, 2017.

This release focuses on the following features:

  • Enhanced support for MySQL on Amazon RDS and Amazon Aurora – Dedicated Amazon Aurora dashboard offers maximum visibility into key database characteristics, eliminating the need for additional monitoring nodes.  We renamed Amazon RDS OS Metrics to Amazon RDS / Aurora MySQL Metrics
  • Simpler configuration – Percona Monitoring and Management now offers easier configuration of key Amazon RDS and Amazon Aurora settings via a web interface
  • One-click data collection – One button retrieves vital information on server performance …
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Webinars on Wednesday November 15, 2017: Proxy Wars and Percona Software Update for Q4

Do you need to get to grips with MySQL proxies? Or maybe you could do with discovering the latest developments and plans for Percona’s software?

Well, wait no more because …

on Wednesday November 15, 2017, we bring you a webinar double bill.

Join Percona’s Chief Evangelist, Colin Charles as he presents “The Proxy Wars – MySQL Router, ProxySQL, MariaDB MaxScale” at 7:00 am PST / 10:00 am EST (UTC-8).

Reflecting on his past experience with MySQL proxies, Colin will provide a short review of three open source solutions. He’ll run through a comparison of MySQL Router, MariaDB MaxScale and ProxySQL and talk about the reasons for using the right tool for an application.

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MySQL and Linux Context Switches

In this blog post, I’ll look at MySQL and Linux context switches and what is the normal number per second for a database environment.

You might have heard many times about the importance of looking at the number of context switches to indicate if MySQL is suffering from the internal contention issues. I often get the question of what is a “normal” or “acceptable” number, and at what point should you worry about the number of context switches per second?

First, let’s talk about what context switches are in Linux. This StackOverflow Thread provides a good discussion, with a lot of details, but basically it works like this:  

The process (or thread in MySQL’s case) is running its computations. Sooner or later, it has to do some blocking operation: disk IO, network IO, block waiting on a mutex …

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Percona Monitoring and Management 1.4.1 Is Now Available

Percona announces the release of Percona Monitoring and Management 1.4.1 on Thursday, November 2nd, 2017. This release contains fixes to bugs found after Percona Monitoring and Management 1.4.0 was released. It also introduces two important improvements. We replaced the btrfs file system with XFS in AMI and OVF images, and the Prometheus dashboard has been enhanced to offer more information.

For install and upgrade instructions, see Deploying Percona Monitoring and Management.

Improvements

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MySQL Dashboard Improvements in Percona Monitoring and Management 1.4.0

In this blog post, I’ll walk through some of the improvements to the Percona Monitoring and Management (PMM) MySQL dashboard in release 1.4.0.

As the part of Percona Monitoring and Management development, we’re constantly looking for better ways to visualize information and help you to spot and resolve problems faster. We’ve made some updates to the MySQL dashboard in the 1.4.0 release. You can see those improvements in action in our Percona Monitoring and Management Demo Site: check out the MySQL Overview and …

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JSON Output of the pmm-admin list Command

In this blog post, we’ll look at Percona Monitoring and Management’s pmm-admin list command.

The pmm-admin list command shows all monitoring services you have added using the pmm-admin add command. Starting with version 1.4.0, Percona Monitoring and Management (PMM) also lists external monitoring services when you run pmm-admin list, i.e., those services that monitor the backends not supported out of the box (such as PostgreSQL databases).

In the output, the external monitoring services appear at the bottom:

The tabular output of the pmm-admin list commandJSON Output for …

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