Do you know the difference between “tail -f” and “tail -F”?
Ok, don’t feel bad. It’s very difficult to find someone who knows… And with a reason, I can’t find any link explaining this by Googling.
It’s possible that I don’t know how to search it too. But I searched as I’d search if I didn’t know that… And couldn’t find anything about…
Let’s take a look on –help, so:
A few months ago, i had a problem in Persistence Store of JMS queues, soon after perform server restart, I get error from persistence store to recover message:
weblogic.store.PersistentStoreFatalException: [Store:280064]invalid handle 55981 (server="EVENTS01" store="JDBCStore_3022" table="JDBCStore_3022WLStore"),
To resolve this problem, just add this parameter on server startup arguments:
-Dweblogic.store.StoreBootOnError = true
With this parameter, the server starts with OK status in WebLogic 11g and with FAILED status in Weblogic 12c, but in both the processing of the messages continues when active,
to remove FAILED status in Weblogic 12c, just need to truncate persistence table in database and restart server (This solution can be found in Oracle Docs).
This solution did not solved my problem, because I can’t lost or delete messages.
Let’s go analyse the problem:
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According Oracle guys, Apache 2.4 its is a vanila module to Weblogic 12c and same module runs with Weblogic 11g.
Modules are available to download: https://blogs.oracle.com/WebLogicServer/entry/announcing_web_socket_proxy_and
# httpd -version
Server version: Apache/2.4.6 (Red Hat Enterprise Linux)
Server built: Mar 21 2016 02:33:00
On httpd.conf is necessary to load Apache 2.4 module
LoadModule weblogic_module modules/lib/mod_wl_24.so
What if your arch processes hangs or get killed? How to keep archive going without restart database?
Take a look…
Today I’m going to introduce the Coherence Server Out-of-Process configuration.
Once this configuration has changed a lot between versions 11G to 12C, the post will be a little bit more detailed (than usual).
The table below summarize these changes:
||Coherence Cache Config resource
||Coherence Cluster resoruce
|Out-Of-Process Cache Server
||New WLS node/cluster
Follow the steps:
Today we are going to discuss about FLASHBACK TABLE. As usual, first, I am tagging here the previous posts about Flashback Technology, so feel free to check it out if you want:
Flashback – Part 1 (Flashback Drop)
Flashback – Part 2 (Flashback Query)
Flashback – Part 3 (Flashback Versions Query)
Flashback – Part 4 (Flashback Transaction Query)
So let’s do it people.