Replication Agents
SQL Server utilizes replication agents to do different tasks during the replication process. These agents are constantly waking up at some frequency and fulfilling specific jobs. As you can see in Figure 19.19, several replication agent categories are listed under the Job Activity Monitor when you expand the SQL Server Agents branch (SQL Server Agent, Jobs, Job Activity Monitor branch).
Figure 19.19 Replication agent jobs. Replication job category entries are prefixed with REPL-.
Here are the main replication agent categories:
• Snapshot Agent
• Log Reader Agent
• Distribution Agent
• Merge Agent (for updating subscribers) ...
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