System.Data.SqlClient.SqlException (0x80131904): Transcation (Process ID xxxx) was deadlocked on lock

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System.Data.SqlClient.SqlException (0x80131904): Transcation (Process ID xxxx) was deadlocked on lock | communication buffer (4254546)

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Title

System.Data.SqlClient.SqlException (0x80131904): Transcation (Process ID xxxx) was deadlocked on lock | communication buffer
Description

Migration Agent for Exchange (MAGE) log file shows: System.Data.SqlClient.SqlException (0x80131904): Transcation (Process ID xxxx) was deadlocked on lock | communication buffer
Cause

If more than 50 migration agents (MAGE) are running simultaneously, the overall migration slowdown may be observed.
In accordance with the current algorithm that is used to process statistical data, each migration statistics update is added to SQL database immediately. This may lead to the deadlock in the certain SQL tables in case of many simultaneous migrations.
Resolution

To resolve the issue, please install MIgration Manager for Exchange Update 20160713EX.
Defect ID

PT12594301
Additional Information

Product defect PT12594301 has been registered in order to remove unnecesary SQL queries.

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System.Data.SqlClient.SqlException (0x80131904): Transcation (Process ID xxxx) was deadlocked on lock | communication buffer (4254546)