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<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>amardeepsidhu.com</title><link>https://amardeep-sidhu.github.io/mywebsite/</link><description>Recent content on amardeepsidhu.com</description><generator>Hugo -- 0.135.0</generator><language>en</language><lastBuildDate>Sun, 08 Sep 2024 16:42:29 +0530</lastBuildDate><atom:link href="https://amardeep-sidhu.github.io/mywebsite/index.xml" rel="self" type="application/rss+xml"/><item><title>blog2-Fifth</title><link>https://amardeep-sidhu.github.io/mywebsite/blog2/2024/09/08/blog2-first-post/</link><pubDate>Sun, 08 Sep 2024 16:42:29 +0530</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/blog2/2024/09/08/blog2-first-post/</guid><description><p>This is the blog2-Fifth post created with minimal front matter</p></description></item><item><title>Fifth</title><link>https://amardeep-sidhu.github.io/mywebsite/fifth/</link><pubDate>Sun, 08 Sep 2024 16:42:29 +0530</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/fifth/</guid><description><p>This is the 5th post created with minimal front matter</p></description></item><item><title>My4thpost</title><link>https://amardeep-sidhu.github.io/mywebsite/my4thpost/</link><pubDate>Fri, 06 Sep 2024 08:26:56 +0530</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/my4thpost/</guid><description><p>This is the 4th post created with minimal front matter</p></description></item><item><title>Database performance degradation due to multipath issues ashishb</title><link>https://amardeep-sidhu.github.io/mywebsite/blog/database-performance-degradation-due-to-multipath-issues/</link><pubDate>Mon, 22 Mar 2021 07:24:19 +0000</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/blog/database-performance-degradation-due-to-multipath-issues/</guid><description><p>To put it in bit of an Indian context, database is not your daughter-in-law that you can blame it for every performance issue that occurs in the environment. But it does happen. Most of the time it is the database that is blamed for all such issues. Many times, the issues are in some other layer like OS, network or storage.</p>
<p>Faced this issue recently at one of the customer sites where performance in one of the databases went down suddenly. It was a 2 node RAC on 12.1.0.2 running on Linux 7 using some kind of Hitachi SSD storage array. There were no changes as per DBA, application, OS and storage teams. But something must have changed somewhere. Otherwise why would performance degrade just like that. I &amp; my colleague checked some details and found that something happened in the morning a day before. Starting from that point in time, the execution time for all the commonly run queries shot up. Generally speaking, when all the queries are doing bad and you are sure that nothing has been changed on the database side, the reasons could be outside the database. But being a DBA, it is not easy to prove that. We took AWRs from good and bad times and the wait events section looked like this:</p></description></item><item><title>Database performance degradation due to multipath issues gatsby</title><link>https://amardeep-sidhu.github.io/mywebsite/blog3/database-performance-degradation-due-to-multipath-issues-gatsby/</link><pubDate>Mon, 22 Mar 2021 12:54:19 +0530</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/blog3/database-performance-degradation-due-to-multipath-issues-gatsby/</guid><description><p>To put it in bit of an Indian context, database is not your daughter-in-law that you can blame it for every performance issue that occurs in the environment. But it does happen. Most of the time it is the database that is blamed for all such issues. Many times, the issues are in some other layer like OS, network or storage.</p>
<p>Faced this issue recently at one of the customer sites where performance in one of the databases went down suddenly. It was a 2 node RAC on 12.1.0.2 running on Linux 7 using some kind of Hitachi SSD storage array. There were no changes as per DBA, application, OS and storage teams. But something must have changed somewhere. Otherwise why would performance degrade just like that. I &amp; my colleague checked some details and found that something happened in the morning a day before. Starting from that point in time, the execution time for all the commonly run queries shot up. Generally speaking, when all the queries are doing bad and you are sure that nothing has been changed on the database side, the reasons could be outside the database. But being a DBA, it is not easy to prove that. We took AWRs from good and bad times and the wait events section looked like this:</p></description></item><item><title>Database performance degradation due to multipath issues php</title><link>https://amardeep-sidhu.github.io/mywebsite/database-performance-degradation-due-to-multipath-issues/</link><pubDate>Mon, 22 Mar 2021 07:24:19 +0000</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/database-performance-degradation-due-to-multipath-issues/</guid><description><p>To put it in bit of an Indian context, database is not your daughter-in-law that you can blame it for every performance issue that occurs in the environment. But it does happen. Most of the time it is the database that is blamed for all such issues. Many times, the issues are in some other layer like OS, network or storage.</p>
<p>Faced this issue recently at one of the customer sites where performance in one of the databases went down suddenly. It was a 2 node RAC on 12.1.0.2 running on Linux 7 using some kind of Hitachi SSD storage array. There were no changes as per DBA, application, OS and storage teams. But something must have changed somewhere. Otherwise why would performance degrade just like that. I &amp; my colleague checked some details and found that something happened in the morning a day before. Starting from that point in time, the execution time for all the commonly run queries shot up. Generally speaking, when all the queries are doing bad and you are sure that nothing has been changed on the database side, the reasons could be outside the database. But being a DBA, it is not easy to prove that. We took AWRs from good and bad times and the wait events section looked like this:<!-- raw HTML omitted --></p></description></item><item><title>ZDLRA patching ashishb</title><link>https://amardeep-sidhu.github.io/mywebsite/blog/zdlra-patching/</link><pubDate>Fri, 12 Mar 2021 17:00:52 +0000</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/blog/zdlra-patching/</guid><description><p>To be honest, Fernando Simon has already documented all the steps needed in ZDLRA patching . So this post is more like a reference post for me and it points to the links on <a href="http://www.fernandosimon.com/blog/">his blog</a>. One thing he could change though are the post titles. He also agrees ;)</p>
<p><a href="https://twitter.com/amardeep">https://twitter.com/amardeep</a>_sidhu/status/1370304085245661192</p>
<p>ZDLRA patching is broadly divided into two parts. First part is where you patch the RA library and Grid &amp; DB homes. Second part includes compute node &amp; storage cell image patch and patches for IB/RoCE switches. Second part is exactly similar to Exadata except that it is bit restricted in terms of image versions that you can use. Only the versions that are certified for ZDLRA can be used. Also the RA library version and the Exadata image version should be compatible with each other. So if you are planning to patch only one part; RA library or the image, make sure that both the components stay compatible. The MOS note that has all these details is 1927416.1. This note should be the first place to go when you are planning to patch a ZDLRA. The steps for upgrade/patch, image patching are given in MOS note 2028931.1. There is another note 2639262.1 that discusses some of the known issues that you may face while doing the patching. It is important to review all three notes before you plan to patch.</p></description></item><item><title>ZDLRA patching gatsby</title><link>https://amardeep-sidhu.github.io/mywebsite/blog3/zdlra-patching/</link><pubDate>Fri, 12 Mar 2021 22:30:52 +0530</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/blog3/zdlra-patching/</guid><description><p>To be honest, Fernando Simon has already documented all the steps needed in ZDLRA patching . So this post is more like a reference post for me and it points to the links on <a href="http://www.fernandosimon.com/blog/">his blog</a>. One thing he could change though are the post titles. He also agrees 😉</p>
<!-- raw HTML omitted -->
<!-- raw HTML omitted -->
<p>The RA library patching part can be considered of two different types. This is an important difference. Make sure that you follow the right set of commands. When you are jumping between major versions say going from 12.x to 19.x, it is called an upgrade and the commands are like racli upgrade appliance –step=1. Fernando talks about this in detail in <a href="https://www.fernandosimon.com/blog/zdlra-patch-the-recovery-appliance/">this post</a>.</p></description></item><item><title>ZDLRA patching php</title><link>https://amardeep-sidhu.github.io/mywebsite/zdlra-patching/</link><pubDate>Fri, 12 Mar 2021 17:00:52 +0000</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/zdlra-patching/</guid><description><p>To be honest, Fernando Simon has already documented all the steps needed in ZDLRA patching . So this post is more like a reference post for me and it points to the links on <!-- raw HTML omitted -->his blog<!-- raw HTML omitted -->. One thing he could change though are the post titles. He also agrees 😉<!-- raw HTML omitted --></p>
<!-- raw HTML omitted -->
<pre><code>&lt;a href=&quot;https://twitter.com/amardeep_sidhu/status/1370304085245661192?ref_src=twsrc%5Etfw&quot;&gt;March 12, 2021&lt;/a&gt;
</code></pre>
<!-- raw HTML omitted -->
<p>ZDLRA patching is broadly divided into two parts. First part is where you patch the RA library and Grid &amp; DB homes. Second part includes compute node &amp; storage cell image patch and patches for IB/RoCE switches. Second part is exactly similar to Exadata except that it is bit restricted in terms of image versions that you can use. Only the versions that are certified for ZDLRA can be used. Also the RA library version and the Exadata image version should be compatible with each other. So if you are planning to patch only one part; RA library or the image, make sure that both the components stay compatible. The MOS note that has all these details is 1927416.1. This note should be the first place to go when you are planning to patch a ZDLRA. The steps for upgrade/patch, image patching are given in MOS note 2028931.1. There is another note 2639262.1 that discusses some of the known issues that you may face while doing the patching. It is important to review all three notes before you plan to patch.</p></description></item><item><title>[FATAL] [INS-44000] Passwordless SSH connectivity is not setup ashishb</title><link>https://amardeep-sidhu.github.io/mywebsite/blog/fatal-ins-44000-passwordless-ssh-connectivity-is-not-setup/</link><pubDate>Wed, 10 Mar 2021 12:47:34 +0000</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/blog/fatal-ins-44000-passwordless-ssh-connectivity-is-not-setup/</guid><description><p>Faced this while running installer for setting up a 2 node RAC setup (version 19.8) on an Oracle SuperCluster. The error reported in the log is:</p>
<pre tabindex="0"><code>[FATAL] [INS-44000] Passwordless SSH connectivity is not setup from the local node node1 to the following nodes:
[node2]
[INS-06006] Passwordless SSH connectivity not set up between the following node(s): [node2]
</code></pre><p>From the error it appears that the ssh is not setup between two nodes but actually that is not the case. Here the error message is bit misleading. It turned out to be an issue with scp with openssh version 8.x. Running the setup with -debug option gives the clue:</p></description></item><item><title>[FATAL] [INS-44000] Passwordless SSH connectivity is not setup gatsby</title><link>https://amardeep-sidhu.github.io/mywebsite/blog3/fatal-ins-44000-passwordless-ssh-connectivity-is-not-setup/</link><pubDate>Wed, 10 Mar 2021 18:17:34 +0530</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/blog3/fatal-ins-44000-passwordless-ssh-connectivity-is-not-setup/</guid><description><p>Faced this while running installer for setting up a 2 node RAC setup (version 19.8) on an Oracle SuperCluster. The error reported in the log is:</p>
<!-- raw HTML omitted -->
<pre tabindex="0"><code>
&lt;/div&gt;From the error it appears that the ssh is not setup between two nodes but actually that is not the case. Here the error message is bit misleading. It turned out to be an issue with scp with openssh version 8.x. Running the setup with -debug option gives the clue:
&lt;div class=&#34;wp-block-syntaxhighlighter-code &#34;&gt;```
&lt;pre class=&#34;brush: plain; title: ; notranslate&#34; title=&#34;&#34;&gt;
&lt;protocol error: filename does not match request&gt;
</code></pre><!-- raw HTML omitted -->
<p>Workaround is to pass the -T option to scp to ignore the new checks. You can rename the scp binary to something like scp.original and create a new shell script there like this:</p></description></item><item><title>[FATAL] [INS-44000] Passwordless SSH connectivity is not setup php</title><link>https://amardeep-sidhu.github.io/mywebsite/fatal-ins-44000-passwordless-ssh-connectivity-is-not-setup/</link><pubDate>Wed, 10 Mar 2021 12:47:34 +0000</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/fatal-ins-44000-passwordless-ssh-connectivity-is-not-setup/</guid><description><p>Faced this while running installer for setting up a 2 node RAC setup (version 19.8) on an Oracle SuperCluster. The error reported in the log is:</p>
<!-- raw HTML omitted -->
<p><!-- raw HTML omitted --></p>
<!-- raw HTML omitted -->
<p>From the error it appears that the ssh is not setup between two nodes but actually that is not the case. Here the error message is bit misleading. It turned out to be an issue with scp with openssh version 8.x. Running the setup with -debug option gives the clue:</p></description></item><item><title>[FATAL] [INS-44000] Passwordless SSH connectivity is not setup - nodejs</title><link>https://amardeep-sidhu.github.io/mywebsite/blog3/2021-03-10-fatal-ins-44000-passwordless-ssh-connectivity-is-not-setup-nodejs/</link><pubDate>Wed, 10 Mar 2021 00:00:00 +0000</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/blog3/2021-03-10-fatal-ins-44000-passwordless-ssh-connectivity-is-not-setup-nodejs/</guid><description><p>Faced this while running installer for setting up a 2 node RAC setup (version 19.8) on an Oracle SuperCluster. The error reported in
the log is:</p>
<pre tabindex="0"><code>[FATAL] [INS-44000] Passwordless SSH connectivity is not setup from the local node node1 to the following nodes:
[node2]
[INS-06006] Passwordless SSH connectivity not set up between the following node(s): [node2]
</code></pre><p>From the error it appears that the ssh is not setup between two nodes but actually that is not the case. Here the error message is bi
t misleading. It turned out to be an issue with scp with openssh version 8.x. Running the setup with -debug option gives the clue:</p></description></item><item><title>My 1st post</title><link>https://amardeep-sidhu.github.io/mywebsite/myfirstpost/</link><pubDate>Tue, 15 Sep 2020 11:30:03 +0000</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/myfirstpost/</guid><description>Desc Text.</description></item><item><title>My 2nd post</title><link>https://amardeep-sidhu.github.io/mywebsite/mysecondpost/</link><pubDate>Tue, 15 Sep 2020 11:30:03 +0000</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/mysecondpost/</guid><description>Desc Text.</description></item><item><title>My 3rd post</title><link>https://amardeep-sidhu.github.io/mywebsite/mythirdpost/</link><pubDate>Tue, 15 Sep 2020 11:30:03 +0000</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/mythirdpost/</guid><description>Desc Text.</description></item><item><title>Garbled display while running FMW installer on Linux - php</title><link>https://amardeep-sidhu.github.io/mywebsite/garbled-display-while-running-fmw-installer-on-linux/</link><pubDate>Sat, 18 Nov 2017 10:56:02 +0000</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/garbled-display-while-running-fmw-installer-on-linux/</guid><description><p>A colleague faced this while running FMW installer on a Linux machine. The display appeared like this</p>
<p><a href="http://amardeepsidhu.com/blog/wp-content/uploads/2017/11/fmw_installer.jpg"><!-- raw HTML omitted --></a></p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p><a href="https://stackoverflow.com/questions/46270769/weblogic-12c-12-1-3-installation-on-unix-garbled-character-in-gui-over-xming">This thread</a> gave a clue that it could have something to do with fonts. So I checked what all fonts related stuff was installed.</p>
<!-- raw HTML omitted -->
<!-- raw HTML omitted -->
<p>stix-fonts looked suspicious to me. So I removed that with rpm -e stix-fonts.</p>
<p>That actually fixed the issue. After this the Installer window was displaying fine.</p></description></item><item><title>Garbled display while running FMW installer on Linux ashishb</title><link>https://amardeep-sidhu.github.io/mywebsite/blog/garbled-display-while-running-fmw-installer-on-linux/</link><pubDate>Sat, 18 Nov 2017 10:56:02 +0000</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/blog/garbled-display-while-running-fmw-installer-on-linux/</guid><description><p>A colleague faced this while running FMW installer on a Linux machine. The display appeared like this</p>
<p><a href="https://amardeep-sidhu.github.io/mywebsite/blog/wp-content/uploads/2017/11/fmw_installer.jpg"><img loading="lazy" src="https://amardeep-sidhu.github.io/mywebsite/blog/wp-content/uploads/2017/11/fmw_installer.jpg" alt="" />
</a><a href="https://stackoverflow.com/questions/46270769/weblogic-12c-12-1-3-installation-on-unix-garbled-character-in-gui-over-xming">This thread</a> gave a clue that it could have something to do with fonts. So I checked what all fonts related stuff was installed.</p>
<p>[bash][root@someserver ~]# rpm -aq |grep -i font
stix-fonts-1.1.0-5.el7.noarch
xorg-x11-font-utils-7.5-20.el7.x86_64
xorg-x11-fonts-cyrillic-7.5-9.el7.noarch
xorg-x11-fonts-ISO8859-1-75dpi-7.5-9.el7.noarch
xorg-x11-fonts-ISO8859-9-100dpi-7.5-9.el7.noarch
xorg-x11-fonts-ISO8859-9-75dpi-7.5-9.el7.noarch
libXfont-1.5.2-1.el7.x86_64
xorg-x11-fonts-ISO8859-14-100dpi-7.5-9.el7.noarch
xorg-x11-fonts-ISO8859-1-100dpi-7.5-9.el7.noarch
xorg-x11-fonts-75dpi-7.5-9.el7.noarch
xorg-x11-fonts-ISO8859-2-100dpi-7.5-9.el7.noarch
libfontenc-1.1.3-3.el7.x86_64
xorg-x11-fonts-ethiopic-7.5-9.el7.noarch
xorg-x11-fonts-100dpi-7.5-9.el7.noarch
xorg-x11-fonts-misc-7.5-9.el7.noarch
fontpackages-filesystem-1.44-8.el7.noarch
fontconfig-2.10.95-11.el7.x86_64
xorg-x11-fonts-ISO8859-2-75dpi-7.5-9.el7.noarch
xorg-x11-fonts-ISO8859-14-75dpi-7.5-9.el7.noarch
xorg-x11-fonts-Type1-7.5-9.el7.noarch
xorg-x11-fonts-ISO8859-15-75dpi-7.5-9.el7.noarch
[root@someserver ~]#[/bash]</p></description></item><item><title>Garbled display while running FMW installer on Linux gatsby</title><link>https://amardeep-sidhu.github.io/mywebsite/blog3/garbled-display-while-running-fmw-installer-on-linux-gatsby/</link><pubDate>Sat, 18 Nov 2017 16:26:02 +0530</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/blog3/garbled-display-while-running-fmw-installer-on-linux-gatsby/</guid><description><p>A colleague faced this while running FMW installer on a Linux machine. The display appeared like this</p>
<p><a href="http://amardeepsidhu.com/blog/wp-content/uploads/2017/11/fmw_installer.jpg"><img loading="lazy" src="http://amardeepsidhu.com/blog/wp-content/uploads/2017/11/fmw_installer.jpg" alt="" />
</a></p>
<p><a href="https://stackoverflow.com/questions/46270769/weblogic-12c-12-1-3-installation-on-unix-garbled-character-in-gui-over-xming">This thread</a> gave a clue that it could have something to do with fonts. So I checked what all fonts related stuff was installed.</p>
<pre tabindex="0"><code>&lt;pre class=&#34;brush: bash; title: ; notranslate&#34; title=&#34;&#34;&gt;[root@someserver ~]# rpm -aq |grep -i font
stix-fonts-1.1.0-5.el7.noarch
xorg-x11-font-utils-7.5-20.el7.x86_64
xorg-x11-fonts-cyrillic-7.5-9.el7.noarch
xorg-x11-fonts-ISO8859-1-75dpi-7.5-9.el7.noarch
xorg-x11-fonts-ISO8859-9-100dpi-7.5-9.el7.noarch
xorg-x11-fonts-ISO8859-9-75dpi-7.5-9.el7.noarch
libXfont-1.5.2-1.el7.x86_64
xorg-x11-fonts-ISO8859-14-100dpi-7.5-9.el7.noarch
xorg-x11-fonts-ISO8859-1-100dpi-7.5-9.el7.noarch
xorg-x11-fonts-75dpi-7.5-9.el7.noarch
xorg-x11-fonts-ISO8859-2-100dpi-7.5-9.el7.noarch
libfontenc-1.1.3-3.el7.x86_64
xorg-x11-fonts-ethiopic-7.5-9.el7.noarch
xorg-x11-fonts-100dpi-7.5-9.el7.noarch
xorg-x11-fonts-misc-7.5-9.el7.noarch
fontpackages-filesystem-1.44-8.el7.noarch
fontconfig-2.10.95-11.el7.x86_64
xorg-x11-fonts-ISO8859-2-75dpi-7.5-9.el7.noarch
xorg-x11-fonts-ISO8859-14-75dpi-7.5-9.el7.noarch
xorg-x11-fonts-Type1-7.5-9.el7.noarch
xorg-x11-fonts-ISO8859-15-75dpi-7.5-9.el7.noarch
[root@someserver ~]#
</code></pre><p>stix-fonts looked suspicious to me. So I removed that with rpm -e stix-fonts.</p></description></item><item><title>VirtualBox and Windows driver verifier</title><link>https://amardeep-sidhu.github.io/mywebsite/blog1/2014/12/03/virtualbox-and-windows-driver-verifier/</link><pubDate>Wed, 03 Dec 2014 16:04:56 +0530</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/blog1/2014/12/03/virtualbox-and-windows-driver-verifier/</guid><description><p>I was troubleshooting some Windows hangs on my Desktop system running Windows 8 and enabled driver verifier. Today when I tried to start VirtualBox it failed with this error message.</p>
<blockquote>
<p>Failed to load VMMR0.r0 (VERR_LDR_MISMATCH_NATIVE)</p>
</blockquote>
<p>Most of the online forums were asking to reinstall VirtualBox to fix the issue. But <a href="http://stackoverflow.com/questions/21654596/suddenly-getting-failed-to-load-vmmr0-r0-verr-ldr-mismatch-native-in-virtual">one of the thread</a> mentioned that it was being caused by Windows Driver Verifier. I disabled it, restarted Windows and VirtualBox worked like a charm. Didn’t have time to do more research as i quickly wanted to test something. May be we can skip some particular stuff from Driver Verifier and VirutalBox can then work.</p></description></item><item><title>Gurdas Maan–Roti–music review and more</title><link>https://amardeep-sidhu.github.io/mywebsite/2013/08/gurdas-maanrotimusic-review-and-more/</link><pubDate>Mon, 05 Aug 2013 17:01:17 +0000</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/2013/08/gurdas-maanrotimusic-review-and-more/</guid><description><p>I am writing a music review of an album after really really long time. The last one I wrote was on Mar 3, 2009 for <!-- raw HTML omitted -->Collaborations 2<!-- raw HTML omitted -->. I am not really the one who was eagerly waiting for this album but actually this post is a mix of two posts; ie music review of this album and some in general stuff that I have been thinking about Gurdas Maan’s performance in the last few years. I am sorry if this post sounds like a too critical one. So lets get going with the music review first.</p></description></item><item><title>Oracle GoldenGate 11g Handbook</title><link>https://amardeep-sidhu.github.io/mywebsite/blog1/2013/07/18/oracle-goldengate-11g-handbook/</link><pubDate>Thu, 18 Jul 2013 20:32:33 +0530</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/blog1/2013/07/18/oracle-goldengate-11g-handbook/</guid><description><p>Few months ago I contributed a chapter (on Monitoring, Troubleshooting and Performance tuning) to a GoldenGate book on Oracle Press that <a href="http://robertgfreeman.blogspot.in/">Robert Freeman</a> was authoring. Thought of posting a small update that the book is now out. My name doesn’t appear on the main page <img loading="lazy" src="http://amardeepsidhu.com/blog/wp-content/uploads/2013/07/wlEmoticon-sadsmile.png" alt="Sad smile" />
but you will see it in the Acknowledgements section <img loading="lazy" src="http://amardeepsidhu.com/blog/wp-content/uploads/2013/07/wlEmoticon-winkingsmile.png" alt="Winking smile" />
Below is a screenshot taken from Amazon preview <img loading="lazy" src="http://amardeepsidhu.com/blog/wp-content/uploads/2013/07/wlEmoticon-smile.png" alt="Smile" />
.</p>
<p>You may want to grab a copy if you are using/planning to use Oracle GoldenGate 11g.</p></description></item><item><title>Oracle database 12c</title><link>https://amardeep-sidhu.github.io/mywebsite/blog1/2013/06/27/oracle-database-12c/</link><pubDate>Thu, 27 Jun 2013 07:28:45 +0530</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/blog1/2013/06/27/oracle-database-12c/</guid><description><p>So there is a new toy in the market for database geeks : Oracle has released database 12c. Every social platform is abuzz with the 12c activity. So thought that I should also complete the ritual <img loading="lazy" src="http://amardeepsidhu.com/blog/wp-content/uploads/2013/06/wlEmoticon-winkingsmile.png" alt="Winking smile" />
</p>
<p>In <a href="http://blog.aristadba.com/?p=254">this post</a> Aman has already summed up many important links.</p>
<p>Maria Colgan has posted some useful links <a href="https://blogs.oracle.com/optimizer/entry/oracle_database_12c_is_here">here</a>.</p>
<p>And <a href="http://apex.oracle.com/pls/apex/f?p=202202:2:::::P2_SUCHWORT:migrate12c">here is a link</a> to a slidedeck about Upgrading and Migrating to 12c.</p>
<p>Happy 12c’ing !</p></description></item><item><title>agent deployment error in EM 12c</title><link>https://amardeep-sidhu.github.io/mywebsite/blog1/2013/06/16/agent-deployment-error-in-em-12c/</link><pubDate>Sun, 16 Jun 2013 22:34:56 +0530</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/blog1/2013/06/16/agent-deployment-error-in-em-12c/</guid><description><p>Yesterday I was configuring EM 12c for a Sun Super Cluster system. There were a total of 4 LDOMs where I needed to deploy the agent (Setup –&gt; Add targets –&gt; Add targets manually). Out of these 4 everything went fine for 2 LDOMs but for the other two it failed with an error message. It didn’t give much details on the EM screen but rather gave a message to try to secure/start the agent manually. When I tried to do that manually the secure agent part worked fine but the start agent command failed with the following error message:</p></description></item><item><title>Updating to Exadata 11.2.3.1.1</title><link>https://amardeep-sidhu.github.io/mywebsite/blog1/2012/08/19/updating-to-exadata-11-2-3-1-1/</link><pubDate>Sun, 19 Aug 2012 22:37:41 +0530</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/blog1/2012/08/19/updating-to-exadata-11-2-3-1-1/</guid><description><p>Just a quick note about change in the way the compute nodes are patched starting from version 11.2.3.1.1. For earlier versions Oracle provided the minimal pack for patching the compute nodes. Starting with version 11.2.3.1.1 Oracle has discontinued the minimal pack and the updates to compute nodes are done via Unbreakable Linux Network (ULN).</p>
<p>Now there are three ways to update the compute nodes:</p>
<p>1) You have internet access on the Compute nodes. In this case you can download patch <strong>13741363</strong>, complete the one time setup and start the update.</p></description></item><item><title>ORA-01422 while compiling objects</title><link>https://amardeep-sidhu.github.io/mywebsite/blog1/2012/07/31/ora-01422-while-compiling-objects/</link><pubDate>Tue, 31 Jul 2012 22:04:28 +0530</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/blog1/2012/07/31/ora-01422-while-compiling-objects/</guid><description><p>There was an interesting issue at one of the customer sites. Few tables in the database were altered and the dependent objects became invalid. But the attempts to compile the objects using utlrp.sql or manually were failing. In all the cases it was giving the same error:</p>
<pre tabindex="0"><code>SQL&gt; alter function SCOTT.SOME_FUNCTION compile;
alter function SCOTT.SOME_FUNCTION compile
*
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-01422: exact fetch returns more than requested number of rows
ORA-06512: at line 27
SQL&gt;
</code></pre><p>At first look it sounded like some issue with the dictionary as the error in case of every object (be it a view, function or package) was the same.</p></description></item><item><title>Configure GoldenGate Extract to read from remote logs</title><link>https://amardeep-sidhu.github.io/mywebsite/blog1/2012/05/26/configure-goldengate-extract-to-read-from-remote-logs/</link><pubDate>Sat, 26 May 2012 18:13:02 +0530</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/blog1/2012/05/26/configure-goldengate-extract-to-read-from-remote-logs/</guid><description><p>Sometimes you may need to run GoldenGate on some different machine than the one that hosts the database. It is very much possible but some kind of restrictions apply. First is that the Endian order of both the systems should be same and the second is the bit width has to be same. For example it is not possible to run GoldenGate on a 32 bit system to read from a database that runs on some 64 bit platform. Assuming that the environemnt satisfies the above two conditions; we can use the LOGSOURCE option of TRANSLOGOPTIONS to achieve this.</p></description></item><item><title>Tuning GoldenGate Extract Pump performance</title><link>https://amardeep-sidhu.github.io/mywebsite/blog1/2012/05/25/tuning-goldengate-extract-pump-performance/</link><pubDate>Fri, 25 May 2012 20:38:18 +0530</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/blog1/2012/05/25/tuning-goldengate-extract-pump-performance/</guid><description><p>Just a quick note/post about the significance of COMPRESS and TCPBUFSIZE parameter in performance of a GoldenGate Extract Pump process. COMPRESS helps in compressing the outgoing blocks hence helping in better utilization of the bandwidth from source to target. GG is going to uncompress the blocks before writing them to the remote trail file on the target. Compression ratios of 4:1 or better can be achieved. Of course, use of COMPRESS may result in increased CPU usage on both the sides.</p></description></item><item><title>Welcome to my new website & blog...</title><link>https://amardeep-sidhu.github.io/mywebsite/welcome-to-my-new-website-blog/</link><pubDate>Wed, 06 Feb 2008 15:12:47 +0000</pubDate><guid>https://amardeep-sidhu.github.io/mywebsite/welcome-to-my-new-website-blog/</guid><description><p>Well, it was in my mind for some time, to register my domain name and finally its here :) . I have imported all the posts from <a href="http://amardeepsidhu.blogspot.com" title="My blogger blog">my blog</a> on blogger. I will be checking and editing all the posts for any kind of issues with wordpress. If you see anything out of the way do let me know :)</p></description></item></channel></rss>