1.1.1

Table Of Contents
connection (boot)Property Type
gemre.Prex
membership-port-range
The range of ports available for unicast UDP messaging and for TCP failure detection. Specify this value as two
integers separated by a minus sign. Different members can use different ranges.
SQLFire randomly chooses two unique integers from this range for the member, one for UDP unicast messaging
and the other for TCP failure detection messaging. Additionally, the system uniquely identies the member using
the combined host IP address and UDP port number.
Description
You may want to restrict the range of ports that SQLFire uses so the product can run in an environment where
routers only allow trafc on certain ports.
1024-65535Default Value
connection (boot)Property Type
gemre.Prex
password
A password for the user name given at boot or connection time.
Use this attribute in conjunction with the user attribute.
Description
not setDefault Value
connectionProperty Type
n/aPrex
persist-dd
Enables or disables disk persistence for the data dictionary. By default, all data stores (SQLFire members booted with
host-data=true) set this value to "true" to enable persistence. All SQLFire data stores in the same cluster must use the same
persistence setting.
When persistence is enabled, if all data stores in a cluster are down, then clients cannot execute DDL statements in the
cluster until a data store becomes available. This ensures that the persisent data dictionary can be recovered when the nal
data store rejoins the cluster.
Description
Note: You cannot enable persistence for SQLFire accessors (members that booted with host-data=false).
When persist-dd is set to "false," then no tables can be declared as persistent. However, overow can still be congured
if you explicitly dene the sys-disk-dir attribute.
When a new SQLFire member joins an existing cluster, the data dictionary is obtained either from other members, or it is
retrieved from persisted data if the new member is determined to have to most current copy of the data in the cluster.
Optimizing Availability and Performance on page 87 provides more information about starting and shutting down SQLFire
clusters that utilize disk stores for persistence.
trueDefault Value
connection (boot)Property Type
vFabric SQLFire User's Guide340
vFabric SQLFire Reference