08-11-2009
Quote:
Originally Posted by
zxmaus
Assuming you want to assign a SGA of any size to your database, 1 GB memory will hardly be sufficient or the system so slow that nobody can work with it.
zxmaus is of course correct for purposes of a production or near-production systems. For testing purposes you can tweak the SGA to use a lot less of space (all these changes of course mean a heavy decay of performance). A good start to tune for less memory consumption is DB_BLOCK_BUFFERS, which is basically the DBs disk cache. Since the OS caches disk I/O anyways it is sort of redundant (for testing!!).
I hope this helps.
bakunin
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LEARN ABOUT SUSE
tracker-store
tracker-store(1) User Commands tracker-store(1)
NAME
tracker-store - database indexer and query daemon
SYNOPSIS
tracker-store [OPTION...]
DESCRIPTION
tracker-store provides both a powerful database daemon which allows clients to query or update their data using the highly descriptive
SPARQL language.
tracker-store does not do any file crawling or any mining of data itself, instead other processes do that and serves as a daemon waiting
for such requests from application miners like tracker-miner-fs.
For help on how to configure this daemon, see the man page for tracker-store.cfg.
OPTIONS
-?, --help
A brief help message including some examples.
-V, --version
Returns the version of this binary.
-v, --verbosity={0|1|2|3}
Sets the logging level, 0=errors, 1=minimal, 2=detailed, 3=debug.
-r, --force-reindex
This forces tracker-store to remove databases and to recreate fresh databases ready for data insertion from the miners. For more
information about the miners, see tracker-miner-fs.
-m, --low-memory
This changes the behavior of the database manager and some other parts of tracker-store to be optimized for lower memory systems by
lowering database connection cache sizes and page sizes for example. This may slow down indexing performance.
-n, --readonly-mode
This starts tracker-store in a mode which disables writing to the database. Only SPARQL read requests can be serviced if this option
is used.
ENVIRONMENT
TRACKER_DB_SQL_DIR
This is the directory which tracker uses to load the .sql files from. These are needed on each invocation of tracker-store. If
unset it will default to the correct place. This is used mainly for testing purposes.
TRACKER_DB_ONTOLOGIES_DIR
This is the directory which tracker uses to load the .ontology files from. If unset it will default to the correct place. This is
used mainly for testing purposes.
FILES
$HOME/.config/tracker/tracker-store.cfg $HOME/.config/tracker/tracker-fts.cfg
NOTES
tracker-store is highly bound to the D-Bus freedesktop project. A D-Bus session is needed for all Tracker processes to communicate between
each other. D-Bus is our acting IPC. See dbus-daemon(1) for more information.
SEE ALSO
tracker-applet(1), tracker-search-tool(1), tracker-search(1), tracker-tag(1), tracker-stats(1), tracker-services(1), tracker-info(1),
tracker-status(1).
tracker-store.cfg(5), tracker-fts.cfg(5).
http://www.w3.org/TR/rdf-sparql-query/
dbus-daemon(1),
http://www.freedesktop.org/wiki/Software/dbus
GNU
September 2009 tracker-store(1)