blocks|key|822640|text|您不能使用=。只需使用以下命令：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|822641|export+CATALINA_OPTS="-Xms512M+-Xmx1024M"|code-block|syntax|javascript|822642|entityMap^0|5|1|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

You must not use <code>=</code>. Simply use this:

<pre><code>export CATALINA_OPTS="-Xms512M -Xmx1024M"
</code></pre>

blocks|key|607643|text|使用以下命令可以正确增加tomcat7+(linux发行版)的java堆大小：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|607644|echo+'export+CATALINA_OPTS="-Xms512M+-Xmx1024M"'+>+/usr/share/tomcat7/bin/setenv.sh|code-block|syntax|javascript|607645|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Use following command to increase java heap size for tomcat7 (linux distributions) correctly:

<pre><code>echo 'export CATALINA_OPTS="-Xms512M -Xmx1024M"' &gt; /usr/share/tomcat7/bin/setenv.sh
</code></pre>

blocks|key|607728|text|setenv.sh更好，因为您可以很容易地将这样的配置从一台机器移植到另一台机器，或者从一个Tomcat版本移植到另一个版本。catalina.sh从一个版本到另一个版本会有所不同。但是您可以在任何版本的Tomcat中保持setenv.sh不变。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|607729|另一个优点是，如果您将更改添加到备份或版本控制系统中，则更容易跟踪更改的历史记录。如果您查看历史上setenv.sh更改的方式，您将只看到您自己的更改。然而，如果您使用catalina.sh，您不仅会看到您所做的更改，而且还会看到每个较新版本的Tomcat所带来的更改。|607730|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

setenv.sh is better, because you can easily port such configuration from one machine to another, or from one Tomcat version to another. catalina.sh changes from one version of Tomcat to another. But you can keep your setenv.sh unchanged with any version of Tomcat.

Another advantage is, that it is easier to track the history of your changes if you add it to your backup or versioning system. If you look how you setenv.sh changes along the history, you will see only your own changes. Whereas if you use catalina.sh, you will always see not only your changes, but also changes that came with each newer version of the Tomcat.

blocks|key|607762|text|注意Debian发行版的变化！我尝试在我的Debian7中更改CATALINA_OPTS，结果那个tomcat不再启动。因此，我通过更改属性JAVA_OPTS代替CATALINA_OPTS解决了这个问题，如下所示|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|607763|export+JAVA_OPTS="-Xms512M+-Xmx1024M"|code-block|syntax|javascript|607764|entityMap^0|V|D|1Y|9|29|D|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|U|8|@]|D|@]|E|$]]]|L|$]]

Take care with change in Debian distributions! I tried to change <code>CATALINA_OPTS</code> in my Debian 7 and the results where that tomcat didn't start anymore. Thus I solved this issue by changing the property <code>JAVA_OPTS</code> in place of <code>CATALINA_OPTS</code>, like this

<pre><code>export JAVA_OPTS="-Xms512M -Xmx1024M"
</code></pre>

blocks|key|607807|text|转到"Tomcat目录“/bin目录|type|unstyled|depth|inlineStyleRanges|entityRanges|data|607808|如果是Linux，则创建setenv.sh；如果是Windows，则创建setenv.bat|607809|setenv.*文件的内容：|607810|export+CATALINA_OPTS="$CATALINA_OPTS+-Xms512m"
export+CATALINA_OPTS="$CATALINA_OPTS+-Xmx8192m"
export+CATALINA_OPTS="$CATALINA_OPTS+-XX:MaxPermSize=256m"|code-block|syntax|javascript|607811|在此之后，使用新的参数重新启动tomcat。|607812|解释和完整的信息在这里|607813|http://crunchify.com/how-to-change-jvm-heap-setting-xms-xmx-of-tomcat/|offset|length|607814|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|0|0|0|0|1Y|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|10|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|11|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|12|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|13|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|14|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|15|8|@]|9|@$Q|16|R|17|1|18]]|A|$]]|$1|S|3|-4|5|6|7|19|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|P]]]]

Go to "Tomcat Directory"/bin directory

if Linux then create setenv.sh else if Windows then create setenv.bat

content of setenv.* file :

<pre><code>export CATALINA_OPTS="$CATALINA_OPTS -Xms512m"
export CATALINA_OPTS="$CATALINA_OPTS -Xmx8192m"
export CATALINA_OPTS="$CATALINA_OPTS -XX:MaxPermSize=256m"
</code></pre>

after this restart tomcat with new params.

explanation and full information is here

<a href="http://crunchify.com/how-to-change-jvm-heap-setting-xms-xmx-of-tomcat/" rel="nofollow">http://crunchify.com/how-to-change-jvm-heap-setting-xms-xmx-of-tomcat/</a>

blocks|key|607867|text|即使没有使用'export‘关键字，它也能正常工作。这就是我的setenv.sh+(/usr/share/tomcat7/bin/setenv.sh)中的内容，它可以工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|607868|OS+:+14.04.1-Ubuntu服务器版本:+Apache+Tomcat/7.0.52+(Ubuntu)服务器构建:+Jun+30+2016+01:59:37服务器编号:+7.0.52.0|607869|JAVA_OPTS="-Dorg.apache.catalina.security.SecurityListener.UMASK=`umask`+-server+-Xms6G+-Xmx6G+-Xmn1400m+-XX:HeapDumpPath=/Some/logs/+-XX:%2BHeapDumpOnOutOfMemoryError+-XX:%2BUseConcMarkSweepGC+-XX:%2BUseParNewGC+-XX:SurvivorRatio=8+-XX:%2BUseCompressedOops+-Dcom.sun.management.jmxremote.port=8181+-Dcom.sun.management.jmxremote.authenticate=false+-Dcom.sun.management.jmxremote.ssl=false"
JAVA_OPTS="$JAVA_OPTS+-Dserver.name=$HOSTNAME"|code-block|syntax|javascript|607870|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

It works even without using 'export' keyword. This is what i have in my setenv.sh (/usr/share/tomcat7/bin/setenv.sh) and it works.

OS : 14.04.1-Ubuntu
Server version: Apache Tomcat/7.0.52 (Ubuntu)
Server built: Jun 30 2016 01:59:37
Server number: 7.0.52.0

<pre><code>JAVA_OPTS="-Dorg.apache.catalina.security.SecurityListener.UMASK=`umask` -server -Xms6G -Xmx6G -Xmn1400m -XX:HeapDumpPath=/Some/logs/ -XX:+HeapDumpOnOutOfMemoryError -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:SurvivorRatio=8 -XX:+UseCompressedOops -Dcom.sun.management.jmxremote.port=8181 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false"
JAVA_OPTS="$JAVA_OPTS -Dserver.name=$HOSTNAME"
</code></pre>

blocks|key|822962|text|在这上面花了不少时间之后。我发现这就是setenv.bat的样子。批处理文件中不接受“字符。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|822963|set+CATALINA_OPTS=-Xms512m+-Xmx1024m+-XX:PermSize=128m+-XX:MaxPermSize=768m|822964|echo+hello+"%25CATALINA_OPTS%25“|822965|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

After spending good time time on this . I found this is the what the setenv.bat must look like . No " characters are accepted in batch file. 

set CATALINA_OPTS=-Xms512m -Xmx1024m -XX:PermSize=128m -XX:MaxPermSize=768m

echo hello "%CATALINA_OPTS%"

blocks|key|608010|text|如果它在您centos+7计算机上不起作用，那么您可以从vi+/etc/CATALINA_OPTS=/-Xms512M/tomcat.service文件中更改堆内存，然后在ps+-ef%7Cgrep+tomcat的帮助下将此值显示在tomcat中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|608011|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

If it's not work in your centos 7 machine "export CATALINA_OPTS="-Xms512M -Xmx1024M"" then you can change heap memory from vi /etc/systemd/system/tomcat.service file then this value shown in your tomcat by help of ps -ef|grep tomcat.

I was trying to adjust initial heap size of a tomcat 7 (CentOS, java -version: 1.6.0_25-b06) instance by adding the following line to catalina.sh:

<pre><code>export CATALINA_OPTS="-Xms=512M -Xmx=1024M"
</code></pre>

Starting up tomcat fails and logs the following message to catalina.out:

<pre><code>Invalid initial heap size: -Xms=512m
Could not create the Java virtual machine.
</code></pre>

What is wrong with these options?

Tomcat 7: How to set initial heap size correctly?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我试图通过向catalina.sh添加以下行来调整Tomcat7 (CentOS，java -version: 1.6.0_25-b06)实例的初始堆大小：export CATALINA_OPTS="-Xms=512M -Xmx=1024M"启动tomcat失败，并将以下消息记录到catalina.out：Invali...

问Tomcat 7:如何正确设置初始堆大小？
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