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Add notes for 2016-09-14

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Alan Orth
2016-09-14 16:06:50 +03:00
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@ -297,6 +297,46 @@ org.apache.commons.dbcp.SQLNestedException: Cannot get a connection, pool error
</ul>
<pre><code>org.apache.commons.dbcp.SQLNestedException: Cannot get a connection, pool error Timeout waiting for idle object at org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:114)
</code></pre>
<ul>
<li>I enabled logging of requests to <code>/rest</code> again</li>
</ul>
<h2 id="2016-09-14">2016-09-14</h2>
<ul>
<li>CGSpace crashed again, errors from <code>catalina.out</code>:</li>
</ul>
<pre><code>org.apache.commons.dbcp.SQLNestedException: Cannot get a connection, pool error Timeout waiting for idle object
at org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:114)
</code></pre>
<ul>
<li>I restarted Tomcat and it was ok again</li>
<li>CGSpace crashed a few hours later, errors from <code>catalina.out</code>:</li>
</ul>
<pre><code>Exception in thread &quot;http-bio-127.0.0.1-8081-exec-25&quot; java.lang.OutOfMemoryError: Java heap space
at java.lang.StringCoding.decode(StringCoding.java:215)
</code></pre>
<ul>
<li>We haven&rsquo;t seen that in quite a while&hellip;</li>
<li>Indeed, in a month of logs it only occurs 15 times:</li>
</ul>
<pre><code># grep -rsI &quot;OutOfMemoryError&quot; /var/log/tomcat7/catalina.* | wc -l
15
</code></pre>
<ul>
<li>I also see a bunch of errors from dspace.log:</li>
</ul>
<pre><code>2016-09-14 12:23:07,981 ERROR org.dspace.storage.rdbms.DatabaseManager @ SQL connection Error -
org.apache.commons.dbcp.SQLNestedException: Cannot get a connection, pool error Timeout waiting for idle object
</code></pre>
</section>