{"id":3722,"date":"2025-05-29T17:30:47","date_gmt":"2025-05-29T17:30:47","guid":{"rendered":"https:\/\/w3buddy.com\/?post_type=cposts&#038;p=3722"},"modified":"2025-05-29T17:30:48","modified_gmt":"2025-05-29T17:30:48","slug":"process-manager-pman","status":"publish","type":"cposts","link":"https:\/\/w3buddy.com\/blog\/notes\/getting-started-with-oracle-dba\/process-manager-pman\/","title":{"rendered":"Process Manager (PMAN)"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\ud83e\udde0 <strong>What Is PMAN?<\/strong><br>The <strong>Process Manager (PMAN)<\/strong> is a background process in Oracle that <strong>manages and monitors other background processes<\/strong>, especially those that are dynamic \u2014 meaning they are started or stopped based on workload.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udee0\ufe0f What PMAN Oversees<\/h3>\n\n\n\n<figure class=\"wp-block-table has-small-font-size\"><table><thead><tr><th><strong>Process Type<\/strong><\/th><th><strong>Description<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>Dispatchers &amp; Shared Servers<\/strong> \ud83d\udea6<\/td><td>For handling many user sessions efficiently in a <strong>shared server<\/strong> environment.<\/td><\/tr><tr><td><strong>Connection Brokers &amp; Pooled Servers<\/strong> \ud83c\udf10<\/td><td>Manages <strong>Database Resident Connection Pooling (DRCP)<\/strong> for highly scalable connection management.<\/td><\/tr><tr><td><strong>Job Queue Processes (CJQ0, Jnnn)<\/strong> \ud83d\udd52<\/td><td>Spawns and manages <strong>scheduled jobs<\/strong> using the Oracle Job Queue infrastructure.<\/td><\/tr><tr><td><strong>Restartable Background Processes<\/strong> \ud83d\udd01<\/td><td>Handles processes that <strong>can automatically restart<\/strong> after failures, maintaining resilience.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u2699\ufe0f Where PMAN Runs<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ud83e\udde9 <strong>Database Instances<\/strong> \u2013 Orchestrates dynamic background processes.<\/li>\n\n\n\n<li>\ud83d\udcbe <strong>Oracle ASM Instances<\/strong> \u2013 Supports background task management for ASM.<\/li>\n\n\n\n<li>\ud83d\udce1 <strong>Oracle ASM Proxy Instances<\/strong> \u2013 Extends PMAN responsibilities to proxy-managed storage environments.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udca1 <strong>DBA Tip of the Day<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Keep an eye on <strong>job queues and connection pools<\/strong> in performance diagnostics. PMAN\u2019s activity is closely tied to load balancing and background job efficiency \u2014 especially in <strong>multi-user or DRCP environments<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud83e\udde0 What Is PMAN?The Process Manager (PMAN) is a background process in Oracle that manages and monitors other background processes, especially those that are dynamic \u2014 meaning they are started or stopped based on workload. \ud83d\udee0\ufe0f What PMAN Oversees Process Type Description Dispatchers &amp; Shared Servers \ud83d\udea6 For handling many user sessions efficiently in a [&hellip;]<\/p>\n","protected":false},"template":"","meta":{"googlesitekit_rrm_CAowu461DA:productID":""},"categories":[960,952],"class_list":["post-3722","cposts","type-cposts","status-publish","hentry","category-getting-started-with-oracle-dba","category-notes"],"_links":{"self":[{"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/cposts\/3722","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/cposts"}],"about":[{"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/types\/cposts"}],"wp:attachment":[{"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/media?parent=3722"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/categories?post=3722"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}