Update notes for 2016-12-04

This commit is contained in:
Alan Orth 2016-12-05 01:09:07 +02:00
parent 7a4563de0d
commit 8391dfe2c4
Signed by: alanorth
GPG Key ID: 0FB860CC9C45B1B9
5 changed files with 135 additions and 1 deletions

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@ -159,3 +159,29 @@ Result = The bitstream could not be found
- The first one seems ok, but I don't know what to make of the second one... - The first one seems ok, but I don't know what to make of the second one...
- I had a look and there is indeed no file with the second checksum in the assetstore (ie, looking in `[dspace-dir]/assetstore/99/59/30/...`) - I had a look and there is indeed no file with the second checksum in the assetstore (ie, looking in `[dspace-dir]/assetstore/99/59/30/...`)
- For what it's worth, there is no item on DSpace Test or S3 backups with that checksum either... - For what it's worth, there is no item on DSpace Test or S3 backups with that checksum either...
- In other news, I'm looking at JVM settings from the Solr 4.10.2 release, from `bin/solr.in.sh`:
```
# These GC settings have shown to work well for a number of common Solr workloads
GC_TUNE="-XX:-UseSuperWord \
-XX:NewRatio=3 \
-XX:SurvivorRatio=4 \
-XX:TargetSurvivorRatio=90 \
-XX:MaxTenuringThreshold=8 \
-XX:+UseConcMarkSweepGC \
-XX:+UseParNewGC \
-XX:ConcGCThreads=4 -XX:ParallelGCThreads=4 \
-XX:+CMSScavengeBeforeRemark \
-XX:PretenureSizeThreshold=64m \
-XX:CMSFullGCsBeforeCompaction=1 \
-XX:+UseCMSInitiatingOccupancyOnly \
-XX:CMSInitiatingOccupancyFraction=50 \
-XX:CMSTriggerPermRatio=80 \
-XX:CMSMaxAbortablePrecleanTime=6000 \
-XX:+CMSParallelRemarkEnabled \
-XX:+ParallelRefProcEnabled \
-XX:+AggressiveOpts"
```
- I need to try these because they are recommended by the Solr project itself
- Also, as always, I need to read [Shawn Heisey's wiki page on Solr](https://wiki.apache.org/solr/ShawnHeisey)

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@ -30,7 +30,7 @@
<meta itemprop="dateModified" content="2016-12-02T10:43:00&#43;03:00" /> <meta itemprop="dateModified" content="2016-12-02T10:43:00&#43;03:00" />
<meta itemprop="wordCount" content="722"> <meta itemprop="wordCount" content="816">
@ -275,6 +275,33 @@ Result = The bitstream could not be found
<li>The first one seems ok, but I don&rsquo;t know what to make of the second one&hellip;</li> <li>The first one seems ok, but I don&rsquo;t know what to make of the second one&hellip;</li>
<li>I had a look and there is indeed no file with the second checksum in the assetstore (ie, looking in <code>[dspace-dir]/assetstore/99/59/30/...</code>)</li> <li>I had a look and there is indeed no file with the second checksum in the assetstore (ie, looking in <code>[dspace-dir]/assetstore/99/59/30/...</code>)</li>
<li>For what it&rsquo;s worth, there is no item on DSpace Test or S3 backups with that checksum either&hellip;</li> <li>For what it&rsquo;s worth, there is no item on DSpace Test or S3 backups with that checksum either&hellip;</li>
<li>In other news, I&rsquo;m looking at JVM settings from the Solr 4.10.2 release, from <code>bin/solr.in.sh</code>:</li>
</ul>
<pre><code># These GC settings have shown to work well for a number of common Solr workloads
GC_TUNE=&quot;-XX:-UseSuperWord \
-XX:NewRatio=3 \
-XX:SurvivorRatio=4 \
-XX:TargetSurvivorRatio=90 \
-XX:MaxTenuringThreshold=8 \
-XX:+UseConcMarkSweepGC \
-XX:+UseParNewGC \
-XX:ConcGCThreads=4 -XX:ParallelGCThreads=4 \
-XX:+CMSScavengeBeforeRemark \
-XX:PretenureSizeThreshold=64m \
-XX:CMSFullGCsBeforeCompaction=1 \
-XX:+UseCMSInitiatingOccupancyOnly \
-XX:CMSInitiatingOccupancyFraction=50 \
-XX:CMSTriggerPermRatio=80 \
-XX:CMSMaxAbortablePrecleanTime=6000 \
-XX:+CMSParallelRemarkEnabled \
-XX:+ParallelRefProcEnabled \
-XX:+AggressiveOpts&quot;
</code></pre>
<ul>
<li>I need to try these because they are recommended by the Solr project itself</li>
<li>Also, as always, I need to read <a href="https://wiki.apache.org/solr/ShawnHeisey">Shawn Heisey&rsquo;s wiki page on Solr</a></li>
</ul> </ul>

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@ -179,6 +179,33 @@ Result = The bitstream could not be found
&lt;li&gt;The first one seems ok, but I don&amp;rsquo;t know what to make of the second one&amp;hellip;&lt;/li&gt; &lt;li&gt;The first one seems ok, but I don&amp;rsquo;t know what to make of the second one&amp;hellip;&lt;/li&gt;
&lt;li&gt;I had a look and there is indeed no file with the second checksum in the assetstore (ie, looking in &lt;code&gt;[dspace-dir]/assetstore/99/59/30/...&lt;/code&gt;)&lt;/li&gt; &lt;li&gt;I had a look and there is indeed no file with the second checksum in the assetstore (ie, looking in &lt;code&gt;[dspace-dir]/assetstore/99/59/30/...&lt;/code&gt;)&lt;/li&gt;
&lt;li&gt;For what it&amp;rsquo;s worth, there is no item on DSpace Test or S3 backups with that checksum either&amp;hellip;&lt;/li&gt; &lt;li&gt;For what it&amp;rsquo;s worth, there is no item on DSpace Test or S3 backups with that checksum either&amp;hellip;&lt;/li&gt;
&lt;li&gt;In other news, I&amp;rsquo;m looking at JVM settings from the Solr 4.10.2 release, from &lt;code&gt;bin/solr.in.sh&lt;/code&gt;:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;# These GC settings have shown to work well for a number of common Solr workloads
GC_TUNE=&amp;quot;-XX:-UseSuperWord \
-XX:NewRatio=3 \
-XX:SurvivorRatio=4 \
-XX:TargetSurvivorRatio=90 \
-XX:MaxTenuringThreshold=8 \
-XX:+UseConcMarkSweepGC \
-XX:+UseParNewGC \
-XX:ConcGCThreads=4 -XX:ParallelGCThreads=4 \
-XX:+CMSScavengeBeforeRemark \
-XX:PretenureSizeThreshold=64m \
-XX:CMSFullGCsBeforeCompaction=1 \
-XX:+UseCMSInitiatingOccupancyOnly \
-XX:CMSInitiatingOccupancyFraction=50 \
-XX:CMSTriggerPermRatio=80 \
-XX:CMSMaxAbortablePrecleanTime=6000 \
-XX:+CMSParallelRemarkEnabled \
-XX:+ParallelRefProcEnabled \
-XX:+AggressiveOpts&amp;quot;
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;I need to try these because they are recommended by the Solr project itself&lt;/li&gt;
&lt;li&gt;Also, as always, I need to read &lt;a href=&#34;https://wiki.apache.org/solr/ShawnHeisey&#34;&gt;Shawn Heisey&amp;rsquo;s wiki page on Solr&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt; &lt;/ul&gt;
</description> </description>
</item> </item>

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@ -179,6 +179,33 @@ Result = The bitstream could not be found
&lt;li&gt;The first one seems ok, but I don&amp;rsquo;t know what to make of the second one&amp;hellip;&lt;/li&gt; &lt;li&gt;The first one seems ok, but I don&amp;rsquo;t know what to make of the second one&amp;hellip;&lt;/li&gt;
&lt;li&gt;I had a look and there is indeed no file with the second checksum in the assetstore (ie, looking in &lt;code&gt;[dspace-dir]/assetstore/99/59/30/...&lt;/code&gt;)&lt;/li&gt; &lt;li&gt;I had a look and there is indeed no file with the second checksum in the assetstore (ie, looking in &lt;code&gt;[dspace-dir]/assetstore/99/59/30/...&lt;/code&gt;)&lt;/li&gt;
&lt;li&gt;For what it&amp;rsquo;s worth, there is no item on DSpace Test or S3 backups with that checksum either&amp;hellip;&lt;/li&gt; &lt;li&gt;For what it&amp;rsquo;s worth, there is no item on DSpace Test or S3 backups with that checksum either&amp;hellip;&lt;/li&gt;
&lt;li&gt;In other news, I&amp;rsquo;m looking at JVM settings from the Solr 4.10.2 release, from &lt;code&gt;bin/solr.in.sh&lt;/code&gt;:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;# These GC settings have shown to work well for a number of common Solr workloads
GC_TUNE=&amp;quot;-XX:-UseSuperWord \
-XX:NewRatio=3 \
-XX:SurvivorRatio=4 \
-XX:TargetSurvivorRatio=90 \
-XX:MaxTenuringThreshold=8 \
-XX:+UseConcMarkSweepGC \
-XX:+UseParNewGC \
-XX:ConcGCThreads=4 -XX:ParallelGCThreads=4 \
-XX:+CMSScavengeBeforeRemark \
-XX:PretenureSizeThreshold=64m \
-XX:CMSFullGCsBeforeCompaction=1 \
-XX:+UseCMSInitiatingOccupancyOnly \
-XX:CMSInitiatingOccupancyFraction=50 \
-XX:CMSTriggerPermRatio=80 \
-XX:CMSMaxAbortablePrecleanTime=6000 \
-XX:+CMSParallelRemarkEnabled \
-XX:+ParallelRefProcEnabled \
-XX:+AggressiveOpts&amp;quot;
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;I need to try these because they are recommended by the Solr project itself&lt;/li&gt;
&lt;li&gt;Also, as always, I need to read &lt;a href=&#34;https://wiki.apache.org/solr/ShawnHeisey&#34;&gt;Shawn Heisey&amp;rsquo;s wiki page on Solr&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt; &lt;/ul&gt;
</description> </description>
</item> </item>

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@ -178,6 +178,33 @@ Result = The bitstream could not be found
&lt;li&gt;The first one seems ok, but I don&amp;rsquo;t know what to make of the second one&amp;hellip;&lt;/li&gt; &lt;li&gt;The first one seems ok, but I don&amp;rsquo;t know what to make of the second one&amp;hellip;&lt;/li&gt;
&lt;li&gt;I had a look and there is indeed no file with the second checksum in the assetstore (ie, looking in &lt;code&gt;[dspace-dir]/assetstore/99/59/30/...&lt;/code&gt;)&lt;/li&gt; &lt;li&gt;I had a look and there is indeed no file with the second checksum in the assetstore (ie, looking in &lt;code&gt;[dspace-dir]/assetstore/99/59/30/...&lt;/code&gt;)&lt;/li&gt;
&lt;li&gt;For what it&amp;rsquo;s worth, there is no item on DSpace Test or S3 backups with that checksum either&amp;hellip;&lt;/li&gt; &lt;li&gt;For what it&amp;rsquo;s worth, there is no item on DSpace Test or S3 backups with that checksum either&amp;hellip;&lt;/li&gt;
&lt;li&gt;In other news, I&amp;rsquo;m looking at JVM settings from the Solr 4.10.2 release, from &lt;code&gt;bin/solr.in.sh&lt;/code&gt;:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;# These GC settings have shown to work well for a number of common Solr workloads
GC_TUNE=&amp;quot;-XX:-UseSuperWord \
-XX:NewRatio=3 \
-XX:SurvivorRatio=4 \
-XX:TargetSurvivorRatio=90 \
-XX:MaxTenuringThreshold=8 \
-XX:+UseConcMarkSweepGC \
-XX:+UseParNewGC \
-XX:ConcGCThreads=4 -XX:ParallelGCThreads=4 \
-XX:+CMSScavengeBeforeRemark \
-XX:PretenureSizeThreshold=64m \
-XX:CMSFullGCsBeforeCompaction=1 \
-XX:+UseCMSInitiatingOccupancyOnly \
-XX:CMSInitiatingOccupancyFraction=50 \
-XX:CMSTriggerPermRatio=80 \
-XX:CMSMaxAbortablePrecleanTime=6000 \
-XX:+CMSParallelRemarkEnabled \
-XX:+ParallelRefProcEnabled \
-XX:+AggressiveOpts&amp;quot;
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;I need to try these because they are recommended by the Solr project itself&lt;/li&gt;
&lt;li&gt;Also, as always, I need to read &lt;a href=&#34;https://wiki.apache.org/solr/ShawnHeisey&#34;&gt;Shawn Heisey&amp;rsquo;s wiki page on Solr&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt; &lt;/ul&gt;
</description> </description>
</item> </item>