This document covers every changes an Ops needs to be aware of when running James.
The following procedures are to take as it, and the Apache Software Foundation, nor its contributors, can not be responsible for any damages generated by following the below procedures.
Before performing these operations, you should ensure to have the skills to conduct the operations, and you should read other software documentation. Do not follow this guide blindly!
Note: this section is in progress. It will be updated during all the development process until the release.
Changes to apply between 3.1.x and 3.2.x will be reported here.
Changelist:
Date: 30/08/2018
SHA-1: 9ba6a1dd270f99735c7f9d3d4b2adb5076583c10
JIRA: https://issues.apache.org/jira/browse/JAMES-2529
Required: Yes
Concerned products: Cassandra Guice products
This mailet allow users filtering rules to be applied for incoming emails.
Add this line before the LocalDelivery mailet of your transport processor:
<mailet match="RecipientIsLocal" class="org.apache.james.jmap.mailet.filter.JMAPFiltering"/>
Date: 03/08/2018
SHA-1: de0fa8a3df69f50cbc0684dfb1b911ad497856d7
JIRA: https://issues.apache.org/jira/browse/JAMES-2514
Required: Yes
Concerned products: Cassandra Guice products
James Cassandra Guice now officially uses Cassandra 3.11.3 as a storage backend. After performing the upgrade, the team did perform some breaking changes, detailed below. James Cassandra Guice products are no more tested against Cassandra 2.2.x. Thus we strongly advise our users to upgrade.
Replace in default compaction strategies “DateTieredCompactionStrategy” by “TimeWindowCompactionStrategy”.
This means you can no more start James on top of an empty Cassandra 2.2.x cluster, but existing deployments should not be impacted.
We will assume that Cassandra had been installed with a debian package. Upgrade procedure stays similar in other cases.
/etc/apt/sources.list.d/cassandra.list to match 311x repositorydeb http://www.apache.org/dist/cassandra/debian 311x main
$ apt-get update $ apt-get install cassandra=3.11.3
Edit /etc/cassandra/cassandra.yaml and ensure to really specify the interface cassandra is listening on as seeds.
4.1. Drain data & stop
$ nodetool drain $ nodetool stop
4.2. start Cassandra
$ nodetool upgradesstables apache_james