I followed below document to set up multiple processing server (i created 3 processing server) https://doc.sitecore.net/developers/server-role-configuration-reference/core-roles/processing/index.html
After that i tried to rebuild reporting database and got some exceptions in log files of processing servers as below
14416 20:44:14 WARN Cursor with id d1470ede-fbb5-4983-85b8-03fe5cca89d2 (TaskId 00000000-0000-0000-0000-000000000000) has been concurrently modified. It means the task has been completed, canceled, failed, or expired concurrently. Please consider increasing ownership time for cursors.
Exception: Sitecore.Analytics.Core.Data.ConcurrentlyModifiedException Message: Routine caused exception: History_UpdateCursorProgress. Source: Sitecore.Analytics.Sql
Exception: System.Data.SqlClient.SqlException Message: The interaction cursor has been concurrently modified. Source: .Net SqlClient Data Provider
14416 20:44:14 ERROR Exception when executing agent aggregation/historyWorker Exception: Sitecore.Analytics.Core.Data.ConcurrentlyModifiedException Message: Routine caused exception: History_UpdateCursorProgress. Source: Sitecore.Analytics.Sql
what wrong with it ? Did i miss any setting for configuring multiple processing server ?
I'm working on Sitecore 9.0 Update 1