Gogo Shell Commands for Module Upgrades

Liferay’s Gogo shell commands let you upgrade and verify individual modules. It’s a fine grained approach to upgrading the core and non-core modules. Here’s what you can do with the commands:

First explore the command usage.

Command Usage

If you ran the upgrade tool and it opened Gogo shell, you’re already connected. Otherwise, you can execute commands using the Gogo Shell portlet.

Here are the commands available in the upgrade namespace:

exit or quit: exits the Gogo shell

upgrade:help: displays upgrade commands

upgrade:check: list upgrades pending to execute because they failed in the past or the module hasn’t reached its final version

upgrade:execute : executes upgrades for that module

upgrade:executeAll: executes all pending module upgrade processes

upgrade:list: lists all registered upgrades

upgrade:list : lists the module’s required upgrade steps

upgrade:list | grep Registered: lists registered upgrades and their versions

verify:help: displays verify commands

verify:check : lists the latest execution result for the module’s verify process

verify:checkAll: lists the latest execution results for all verify processes

verify:execute : executes the module’s verifier

verify:executeAll: executes all verifiers

verify:list: lists all registered verifiers

There are many useful Liferay commands and standard commands available in Gogo shell. The following sections describe Liferay upgrade commands.

Listing module upgrade processes

Before upgrading modules, you should find which have unresolved dependencies, which are resolved and available to upgrade, and examine the module upgrade processes.

Executing upgrade:list in the Gogo shell lists the modules whose upgrade dependencies are satisfied. These modules can be upgraded.

If a module is active but not listed, its dependencies need to be upgraded. The Gogo shell command scr:info [upgrade_step_class_qualified_name] shows the upgrade step class’s unsatisfied dependencies. Here’s an example scr:info command:

scr:info com.liferay.journal.upgrade.JournalServiceUpgrade

Invoking upgrade:list [module_name] lists the module’s upgrade processes, in no particular order. For example, executing upgrade:list com.liferay.bookmarks.service (for the Bookmarks Service module), lists this:

Registered upgrade processes for com.liferay.bookmarks.service 1.0.0
        {fromSchemaVersionString=0.0.0, toSchemaVersionString=1.0.0, upgradeStep=com.liferay.portal.spring.extender.internal.context.ModuleApplicationContextExtender$ModuleApplicationContextExtension$1@6e9691da}
        {fromSchemaVersionString=0.0.1, toSchemaVersionString=1.0.0-step-3, upgradeStep=com.liferay.bookmarks.upgrade.v1_0_0.UpgradePortletId@5f41b7ee}
        {fromSchemaVersionString=1.0.0-step-1, toSchemaVersionString=1.0.0, upgradeStep=com.liferay.bookmarks.upgrade.v1_0_0.UpgradePortletSettings@53929b1d}
        {fromSchemaVersionString=1.0.0-step-2, toSchemaVersionString=1.0.0-step-1, upgradeStep=com.liferay.bookmarks.upgrade.v1_0_0.UpgradeLastPublishDate@3e05b7c8}
        {fromSchemaVersionString=1.0.0-step-3, toSchemaVersionString=1.0.0-step-2, upgradeStep=com.liferay.bookmarks.upgrade.v1_0_0.UpgradeClassNames@6964cb47}

An application’s upgrade step class names typically reveal their intention. For example, the example’s com.liferay.bookmarks.upgrade.v1_0_0.UpgradePortletId upgrade step class updates the app’s portlet ID. The other example upgrade step classes update class names, the LastPublishDate, and PortletSettings. The example’s step from 0.0.0 to 1.0.0 upgrades the module from an empty database.

To examine a module’s upgrade process better, you can sort the listed upgrade steps mentally or in a text editor. Here’s the upgrade step order for a Bookmarks Service module to be upgraded from Liferay Portal 6.2 (the module’s database exists) to schema version 1.0.0:

  • 0.0.1 to 1.0.0-step-3
  • 0.0.1-step-3 to 1.0.0-step-2
  • 0.0.1-step-2 to 1.0.0-step-1
  • 0.0.1-step-1 to 1.0.0

The overall module upgrade process starts at version 0.0.1 and finishes at version 1.0.0. The first step starts on the initial version (0.0.1) and finishes on the target version’s highest step (step-3). The last step starts on the target version’s lowest step (step-1) and finishes on the target version (1.0.0).

Once you understand the module’s upgrade process, you can execute it with confidence.

Executing module upgrades

Executing upgrade:execute [module_name] upgrades the module. You might run into upgrade errors that you must resolve. Executing the command again starts the upgrade from the last successful step.

You can check upgrade status by executing upgrade:list [module_name]. For example, entering upgrade:list com.liferay.iframe.web outputs this:

Registered upgrade processes for com.liferay.iframe.web 0.0.1
   {fromSchemaVersionString=0.0.1, toSchemaVersionString=1.0.0, upgradeStep=com.liferay.iframe.web.upgrade.IFrameWebUpgrade$1@1537752d}

The first line lists the module’s name and current version. The example module’s current version is 0.0.1. The toSchemaVersionString value is the target version.

Executing upgrade:list [module_name] on the module after successfully upgrading it shows the module’s name followed by the version you targeted.

For example, if you successfully upgraded com.liferay.iframe.web to version 1.0.0, executing upgrade:list com.liferay.iframe.web shows the module’s version is 1.0.0:

Registered upgrade processes for com.liferay.iframe.web 1.0.0
   {fromSchemaVersionString=0.0.1, toSchemaVersionString=1.0.0, upgradeStep=com.liferay.iframe.web.upgrade.IFrameWebUpgrade$1@1537752d}

For module upgrades that don’t complete, you can check their status and resolve their issues.

Checking upgrade status

It’s good to know things still need upgrading and why. You might have forgotten to upgrade a module or its upgrade failed. In any case, it’s important to know where your upgrade stands.

The command upgrade:check lists modules that have impending upgrades.

For example, if module com.liferay.dynamic.data.mapping.service failed in a step labeled 1.0.0-step-2. Executing upgrade:check shows this:

Would upgrade com.liferay.dynamic.data.mapping.service from 1.0.0-step-2 to
1.0.0 and its dependent modules

Modules often depend on other modules to complete upgrading. Executing scr:info [upgrade_step_class_qualified_name] shows the upgrade step class’s dependencies. You must upgrade dependency modules to successfully upgrade dependent modules.

To resolve and activate a module, its upgrade must complete. The Apache Felix Dependency Manager Gogo shell command dm wtf reveals unresolved dependencies. If your module requires a certain data schema version (e.g., its bnd.bnd specifies Liferay-Require-SchemaVersion: 1.0.2) but the module hasn’t completed upgrade to that version, dm wtf shows that the schema version is not registered.

1 missing dependencies found.
The following service(s) are missing:
 * com.liferay.portal.kernel.model.Release (&(release.bundle.symbolic.name=com.liferay.journal.service)(release.schema.version=1.0.2)) is not found in the service registry

The dm wtf command can also help detect errors in portlet definitions and custom portlet schemaVersion fields.

Browsing the Liferay DXP database Release_ table can help you determine a module’s upgrade status too. The core’s servletContextName field value is portal. If the core’s schemaVersion field matches your new Liferay DXP version (e.g., 7.1.1 for Liferay Portal CE GA2) and the verified field is 1 (true), the core upgrade completed successfully.

Each module has one Release_ table record, and the value for its schemaVersion field must be 1.0.0 or greater (1.0.0 is the initial version for Liferay DXP 7.1 modules, except for those that were previously traditional plugins intended for Liferay Portal version 6.2 or earlier).

Executing verify processes

Verify processes make sure the upgrade executed successfully. Verify processes in the core are automatically executed after upgrading Liferay DXP. You can also execute them by configuring the verify.* portal properties and restarting your server.

Also, some modules have verify processes. To check for available verify processes, enter the Gogo shell command verify:list. To run a verify process, enter verify:execute [verify_qualified_name].

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