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From Jørgen Løland (JIRA) <j...@apache.org>
Subject [jira] Updated: (DERBY-3021) Replication: Add a ReplicationSlave controller that will manage replication on the slave side
Date Mon, 10 Sep 2007 12:02:35 GMT

     [ https://issues.apache.org/jira/browse/DERBY-3021?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jørgen Løland updated DERBY-3021:

    Attachment: derby-3021-1.stat

Patch v1 adds a service that is booted at database boot time if SlaveFactory.SLAVE_MODE is
specified in the boot Properties. Currently, this code is not reachable in Derby.

M      java/engine/org/apache/derby/modules.properties
A      java/engine/org/apache/derby/iapi/services/replication/slave
A      java/engine/org/apache/derby/iapi/services/replication/slave/SlaveFactory.java
A      java/engine/org/apache/derby/impl/services/replication/slave/SlaveController.java

The new service, booted by RawStore if SlaveFactory.SLAVE_MODE is
specified in the boot Properties

M      java/engine/org/apache/derby/impl/store/raw/log/LogToFile.java

Sets a variable inSlaveMode = true if SlaveFactory.SLAVE_MODE is found
in the boot properties. This variable is not currently in use, but
will be used soon

M      java/engine/org/apache/derby/impl/store/raw/RawStore.java

Boots SlaveFactory if SlaveFactory.SLAVE_MODE is specified in the boot Properties

M      java/engine/org/apache/derby/impl/db/BasicDatabase.java

Throws an exception if the database is in slave mode and a client
tries to connect to it.

M      java/engine/org/apache/derby/loc/messages.xml
M      java/shared/org/apache/derby/shared/common/reference/SQLState.java
M      java/testing/org/apache/derbyTesting/functionTests/tests/lang/ErrorCodeTest.java

The new 08004 SQL state and message used when a connection attempt is
performed on a database already booted in slave mode

All tests pass for this patch combined with patch 1 for DERBY-3060.

> Replication: Add a ReplicationSlave controller that will manage replication on the slave
> ---------------------------------------------------------------------------------------------
>                 Key: DERBY-3021
>                 URL: https://issues.apache.org/jira/browse/DERBY-3021
>             Project: Derby
>          Issue Type: Sub-task
>          Components: Services
>    Affects Versions:
>            Reporter: Jørgen Løland
>            Assignee: Jørgen Løland
>         Attachments: derby-3021-1.diff, derby-3021-1.stat
> The replication slave role includes many tasks:
> * set up a network connection with the master
> * receive chunks of log from the master, and parse these into individual log records
> * append log records to the local log file
> * make sure that the recovery process is not allowed to access the logfile we are currently
writing to
> * etc
> This issue is for adding a controller that will start/stop/initiate all services needed
for the replication slave role.

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