Does Online Patching increase the network port requirements on an Oracle E-Business Suite instance?
Yes. Online patching requires an additional set of network ports for the Oracle WebLogic Server managed servers on the second file system. During the cutover phase, the managed servers run simultaneously on the patch file system and run file system for a brief period, in a rolling transition process.
What is Actualize all, How it works?
When the number of old database editions reaches 25 or more, we should consider dropping all old database editions by running the adop actualize_all.
How to execute an empty patching cycle?
adop fails a lot, especially when you’re building a regression test environment. Remember the old DOS days when you yanked out the floppy disk but still had a: on the screen and DOS said (a)bort, (r)etry, (f)ail? And abort and fail always seemed like the same thing, but somehow they weren’t? Same thing with adop, only it calls them abandon and restart.
adop defaults to abandon=no restart=yes if not specified, but to me, that’s still a bit unclear. For example, what the heck would abandon=yes restart=no do? Here’s what I came up with
(1) abandon and cleanup (I strongly urge you to do a full cleanup, or you may be asking for trouble)
adop phase=abort,cleanup cleanup_mode=full
adop phase=fs_clone
(2) fix the problem via whatever means (adctrl in the patch environment, drop the index the patch is trying to re-create, etc) and retry from where it failed
adop phase=apply patches=17020683 restart=yes [abandon=no is implied and not required]
(3) fix what’s wrong but retry from the beginning of the patch, or try a new patch (why you would do the latter, I have no idea)
adop phase=apply patches=17020683 abandon=yes [restart=yes is implied and not required] (same patch)
adop phase=apply patches=17893964,18497540 abandon=yes (new patch)
adop cleanup :
===================
Drop indexes that are no longer in use
Drop old data
Old Database editions
Drop cross-editions triggers
Recover Space
full:
============
Performs all possible cleanup actions to recover the maximum amount of database space.
Drops old database editions, unused columns, and all obsolete storage objects.
Mandatory if an online patching cycle was aborted,
quick :
==============
Performs the bare minimum cleanup needed to finish the patching cycle.
Removes unneeded seed data and cross-edition triggers.
Standard Mode:
==============
The default mode of the cleanup phase
Perform minimum cleanup ( delete old data, objects etc)
Recover system tablespace
Command: adop phase=cleanup
adop phase=cleanup cleanup_mode=full deletes obsolete code, data, and unused columns to recover maximum disk space.
adop phase=actualize_all updates and moves non-modified editioned objects up to the current active edition so that old,
accumulated database editions can be safely retired and dropped.
difference between adop prepare and fs_clone?
=============================================
prepare is part of the standard adop lifecycle (prepare, apply, finalize, cutover, cleanup).
fs_clone is usually an independent, on-demand command to recover the patch file system.
prepare attempts to synchronize incrementally (copying only changed files).
fs_clone forces a complete, full synchronization (re-cloning everything).
If prepare detects that the patch file system cannot be incrementally synchronized
(e.g., if it's too different from the run system), it will internally call fs_clone.
Prepare – Starts a new patching cycle.
FS clone mode can be only executed when there is no active patching cycle going on in the system.
PREPARE phase does not synchronize Technology Stack so if you have applied any Tech stack patches using
OPatch or Smart update then PREPARE phase will not sync that.
how to make Fs_clone fast in process?
=====================================
1. Use Delta Synchronization (Recommended)
Starting from AD-TXK Delta 8, a "delta" mode is available which is much faster than the default method as
it only copies changed files.
Command: adop phase=prepare sync_mode=delta
Method: This uses rsync and delta-style synchronization, which is significantly quicker than a full fs_clone.
2. Optimize JVM and Memory Settings
If fs_clone is hanging or slow, it may be running out of memory, causing extensive Java garbage collection.
export CONFIG_JVM_ARGS="-Xms2048m -Xmx4096m -XX:MaxPermSize=2048m"
3. Use 'dualfs' Cloning
If you are doing a full cloning operation, use the dualfs option to clone both file systems
simultaneously rather than individually.
Command: adop phase=fs_clone options=dualfs
4. Reduce Data Volume and Clean Up
Pre-Cleanup: Always run adop phase=cleanup before fs_clone to remove unnecessary files and minimize the synchronization load.
Remove Old Logs: Clear out old log files in $INST_TOP/logs/ and temp files to reduce file counting overhead.
5. Validate System and Environment
Check Disk Space: Ensure high-speed disk space is available. Insufficient space in /tmp (requires at least 15G)
or $COMMON_TOP can cause fs_clone to hang or fail.
Update Snapshots: Run the "Update current view snapshot" in AD Administration to ensure file system tracking is up to date.
Ensure No Dangling Processes: Check for orphaned adop or java processes from previous failed sessions.
6. Skip Initial Validation (Use with Caution)
If you are confident the system state is good and want to skip some checks, you can use:
adop phase=fs_clone skipsyncerror=yes.
Summary Checklist for Speed
Run adop phase=cleanup
Export CONFIG_JVM_ARGS (higher heap)
Use sync_mode=delta in prepare phase.
Ensure >15GB Free Space on the file system.
Use dualfsclone
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