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Update Dump the content of a transaction log with clarifying steps #116

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31 changes: 26 additions & 5 deletions articles/modules/ROOT/pages/dump-the-contents-of-a-transaction-log.adoc
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= Dump the Contents of a Transaction Log
:slug: dump-the-contents-of-a-transaction-log
:zendesk-id: 205527958
:author: Dave Gordon
:neo4j-versions: 3.0,3.1,3.2,3.3,3.4,3.5,4.0,4.1,4.2
:author: Dave Gordon, Sandeep Reehall
:neo4j-versions: 3.0,3.1,3.2,3.3,3.4,3.5,4.0,4.1,4.2,4.3
:tags: transaction log
:category: operations

If there is a need to look through the transaction logs, particularly to see if/when a node or relationship (or property) with a given ID was touched, you will need to dump the log using the `DumpLogicalLog` tool.

The tools are available separately at https://search.maven.org/#search%7Cgav%7C1%7Cg%3A%22org.neo4j%22%20AND%20a%3A%22neo4j-tools[the Maven Central Repository] prior to version 3.5.x. Download (or build) the correct tools jar for your Neo4j Version from there.

Starting with version 3.5.x, you can find the jar in the http://m2.neo4j.com/enterprise[Private Repository]
The username and password can be found https://support.neo4j.com/hc/en-us/articles/360012742113-Dependency-location-for-Neo4j-Enterprise-Edition-artifacts[here].
Starting with version 3.5.x, you can find the jar in the http://m2.neo4j.com/enterprise[Neo4j's Private Repository]

NOTE: Neo4j's Private Repository cannot be access via a web browser. You will need to install Maven and use mvn.

The steps to configure access to Neo4j's Private Repository can be found https://support.neo4j.com/hc/en-us/articles/360012742113-Dependency-location-for-Neo4j-Enterprise-Edition-artifacts[here].

The following dependency will need to be added to you pom.xml

```xml
<dependencies>
<dependency>
<groupId>com.neo4j</groupId>
<artifactId>neo4j-tools</artifactId>
<version>${neo4j.version}</version>
</dependency>
</dependencies>
```

This will download neo4j-tools-x.x.x.jar in to the local Mavan repository.

Place the jar in `$NEO4J_HOME\lib` and given a log file of neostore.transaction.db.1, run:

[source,shell]
For 3.5 and lower

[source,shell]
----
$ java -cp 'lib/*:system/lib/*:/usr/share/neo4j/lib/*' org.neo4j.tools.dump.DumpLogicalLog ./data/graph.db/neostore.transaction.db.1 > /tmp/dumptxlog_1.log
----

For 4.0 and higher

[source,shell]
----
$ java -cp 'lib/*:system/lib/*:/usr/share/neo4j/lib/*' com.neo4j.tools.dump.DumpLogicalLog ./data/transactions/<Your Database Here>/neostore.transaction.db.0 /tmp/dumptxlog_1.log
----
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