Upgrading JDK: Difference between revisions
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=Upgrading JDK= | |||
{{KB|{{Unsupported}}|{{ZCS 7.0}}|{{ZCS 6.0}}|}} | |||
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= Manually upgrading Java JDK with ZCS = | = Manually upgrading Java JDK with ZCS = | ||
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0. Download the correct version of the JDK for your version of Zimbra ZCS: | 0. Download the correct version of the JDK for your version of Zimbra ZCS: | ||
* ZCS8 | * ZCS8: Java SE Development Kit (JDK) 7 | ||
* ZCS7 | * ZCS7: Java SE Development Kit (JDK) 1.6 | ||
* ZCS6 | * ZCS6: Java SE Development Kit (JDK) 1.6 | ||
* ZCS5 | * ZCS5: Java SE Development Kit (JDK) 1.6 | ||
== Manual Install Instructions (using JDK 1.6 as an example, for ZCS7) == | == Manual Install Instructions (using JDK 1.6 as an example, for ZCS7) == | ||
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=== 1. Download jdk1.6 (latest) === | === 1. Download jdk1.6 (latest) === | ||
Java SE Development Kit: [http://www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase6-419409.html] | Java SE Development Kit: [http://www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase6-419409.html http://www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase6-419409.html] | ||
=== 2. Download appropriate version === | === 2. Download appropriate version === | ||
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=== 3. Move download to mailstore(s) into /var/tmp, open binary === | === 3. Move download to mailstore(s) into /var/tmp, open binary === | ||
<pre> | |||
# chmod 755 /var/tmp/jdk-6u45-linux-x64.bin | # chmod 755 /var/tmp/jdk-6u45-linux-x64.bin | ||
# ./jdk-6u45-linux-x64.bin | # ./jdk-6u45-linux-x64.bin | ||
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Creating jdk1.6.0_45/jre/lib/deploy.jar | Creating jdk1.6.0_45/jre/lib/deploy.jar | ||
Done. | Done. | ||
</pre> | |||
=== 4. Move to /opt/zimbra === | === 4. Move to /opt/zimbra === | ||
<pre> | |||
(as root) | (as root) | ||
# mv -i jdk1.6.0_45 /opt/zimbra/ | # mv -i jdk1.6.0_45 /opt/zimbra/ | ||
</pre> | |||
===5. Copy cacerts file from existing Java setup === | ===5. Copy cacerts file from existing Java setup === | ||
# | <pre> | ||
# cp /opt/zimbra/java/jre/lib/security/cacerts /opt/zimbra/jdk1.6.0_45/jre/lib/security #replace the existing file | |||
# chown zimbra:zimbra /opt/zimbra/jdk1.6.0_45/jre/lib/security/cacerts | # chown zimbra:zimbra /opt/zimbra/jdk1.6.0_45/jre/lib/security/cacerts | ||
</pre> | |||
=== 6. Remove and replace the symlink === | === 6. Remove and replace the symlink === | ||
<pre> | |||
# cd /opt/zimbra | # cd /opt/zimbra | ||
# rm java | # rm java | ||
# ln -s /opt/zimbra/jdk1.6.0_45 java | # ln -s /opt/zimbra/jdk1.6.0_45 java | ||
</pre> | |||
=== 7. Restart the java processes === | === 7. Restart the java processes === | ||
<pre> | |||
# su - zimbra | # su - zimbra | ||
$ zmmailboxdctl restart | $ zmmailboxdctl restart | ||
$ zmconfigdctl restart | $ zmconfigdctl restart | ||
</pre> | |||
=== 8. Rollback Plan === | === 8. Rollback Plan === |
Latest revision as of 11:23, 13 July 2015
Upgrading JDK
Manually upgrading Java JDK with ZCS
For security and performance reasons, it would be a good idea for customers running older versions of ZCS to manually upgrade their Java JDK version. The following steps provide the instructions on doing this - it is a low-risk activity with an easy method to rollback to the current JDK release - both versions remain on the server.
0. Download the correct version of the JDK for your version of Zimbra ZCS:
- ZCS8: Java SE Development Kit (JDK) 7
- ZCS7: Java SE Development Kit (JDK) 1.6
- ZCS6: Java SE Development Kit (JDK) 1.6
- ZCS5: Java SE Development Kit (JDK) 1.6
Manual Install Instructions (using JDK 1.6 as an example, for ZCS7)
1. Download jdk1.6 (latest)
Java SE Development Kit: http://www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase6-419409.html
2. Download appropriate version
Use .bin version (not rpm.bin), x64 or x86 as appropriate for your OS install.
3. Move download to mailstore(s) into /var/tmp, open binary
# chmod 755 /var/tmp/jdk-6u45-linux-x64.bin # ./jdk-6u45-linux-x64.bin Unpacking... Checksumming... Extracting... UnZipSFX 5.50 of 17 February 2002, by Info-ZIP (Zip-Bugs@lists.wku.edu). creating: jdk1.6.0_45/ creating: jdk1.6.0_45/db/ creating: jdk1.6.0_45/db/bin/ inflating: jdk1.6.0_45/db/bin/ij <snip> Creating jdk1.6.0_45/jre/lib/javaws.jar Creating jdk1.6.0_45/jre/lib/deploy.jar Done.
4. Move to /opt/zimbra
(as root) # mv -i jdk1.6.0_45 /opt/zimbra/
5. Copy cacerts file from existing Java setup
# cp /opt/zimbra/java/jre/lib/security/cacerts /opt/zimbra/jdk1.6.0_45/jre/lib/security #replace the existing file # chown zimbra:zimbra /opt/zimbra/jdk1.6.0_45/jre/lib/security/cacerts
6. Remove and replace the symlink
# cd /opt/zimbra # rm java # ln -s /opt/zimbra/jdk1.6.0_45 java
7. Restart the java processes
# su - zimbra $ zmmailboxdctl restart $ zmconfigdctl restart
8. Rollback Plan
Leave the old java version intact just in case. Rolling back is just a matter of altering the symlink for /opt/zimbra/java, and restarting the processes again.