Allow to set Fuseki (or a single dataset) in read-only mode (and eventually,
back into read-write mode)
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Key: JENA-214
URL: https://issues.apache.org/jira/browse/JENA-214
Project: Apache Jena
Issue Type: New Feature
Components: Fuseki
Reporter: Paolo Castagna
Priority: Minor
A very useful MgtCmdServlet with commands such as: "backup", "shutdown", etc.
is now available in Fuseki.
This is proposing a new command to set the server (or a single dataset) in
read-only mode and back into read-write mode.
A use case for this would be to perform a replication via rsync, in order to
replicate TDB indexes from server A to server B both servers needs to be set to
read-only mode first, the replication can start, when it finishes both servers
can be configured back to read-write mode.
Another use case would be, enabling a backup with an external tool or any other
operation which needs to have exclusive access to TDB indexes and/or ensure all
data has been flushed to disk and there are no in-flight write transactions.
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