Identify and Resolve Database Locking and Root Blockers

Focus your tuning efforts on the queries that will reduce overall blocking time

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Identify the root blockers and the total wait caused

Image of the root blocker

Identify the root blockers and the total wait caused

DPA collects blocking data and the Blocking Tab provides visibility into the root blocker (the top of the tree) with aggregated wait time. This allows DBAs to see the top blocking data and its impact on response times. DPA reveals the top waiters, so the DBA can quickly drill down and find their blockers and optimize the queries that reduce blocking the most.

Article: Understanding SQL Server Locks and Blocks

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Article: Understanding SQL Server Locks and Blocks

Focus on the important queries to reduce blocking time

Image of reducing time for database blocking

Focus on the important queries to reduce blocking time

The Top Blocking Sessions Tab reveals post-lock activity that prevents blocked sessions from completing their transactions and releasing locks. This lets the DBA optimize the activity of the top blocker queries, decrease the time that locks are held, and reduce blocking wait time.
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Evaluators Guide

See which objects are waiting as a result of blocking

See which objects are waiting as a result of blocking

It’s often not possible for a DBA to identify queries, programs, users, etc. that are waiting on blockers and slowing down transactions. DPA offers a remedy to this problem. DPA’s intuitive dashboard allows users to identify waiters and quickly drill down and find their blockers. All of this can be done from DPA’s dashboard in just a few clicks.

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Video: Locking and Blocking Resolution for Faster Performance with DPA

Identify the last query of an idle blocker

Identify the last query of an idle blocker

There are times when blockers become idle. In other words, they are blocking without performing any specific function. DPA tracks these blocker sessions backward in time to discover the last known queries that were running within the transaction before it went idle. Armed with that info, the DBA can collaborate with the developer to fix the application code causing the idle blocking. DPA provides visibility into idle blockers along with the top blockers.
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Database Performance Analyzer

  • 轻松逐层展开、上下文设置和一致导航

  • 查看被阻止的内容和导致阻止的原因

  • 优化数据库、索引和查询的合适数据

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Blocking is complex and time-consuming to troubleshoot
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