[jgroups-users] JDBC_PING - "clear_table_on_view_change" attribute missing

Hi,

I’m trying to migrate from jgroups 3.6.11 to 4.0.15.

However, I have a problem regarding JDBC_PING configuration:

<JDBC_PING connection_driver="${hybris.database.driver}"
   connection_password="${hybris.database.password}"
   connection_username="${hybris.database.user}"
   connection_url="${hybris.database.url}"
   initialize_sql="${hybris.jgroups.schema}"
       datasource_jndi_name="${hybris.datasource.jndi.name}"
   clear_table_on_view_change="${hybris.jgroups.clear_table_on_view_change}"/>
/>
With new, 4.0 xsd schema attribute clear_table_on_view_change  is not available anymore. Documentation<http://www.jgroups.org/manual4/index.html> ,however still refers to it:


Another attribute clear_table_on_view_change governs how zombies are handled. Zombies are table entries for members which crashed, but weren’t removed for some reason. E.g. if we have a single member A and kill it (via kill -9), then it won’t get removed from the table.

If clear_table_on_view_change is set to true, then the coordinator clears the table after a view change (instead of only removing the crashed members), and everybody re-inserts its own information. This attribute can be set to true if automatic removal of zombies is desired. However, it is costly, therefore if no zombies ever occur (e.g. because processes are never killed with kill -9), or zombies are removed by a system admin, then it should be set to false.
So it seems to be the same content as for 3.6. Furthermore,
Table 19. JDBC_PING


table in above mentioned documentation does not contain such an attribute and this is another difference comparing to 3.6.

So I’m confused a bit now. Was this enabled by default? Replaced by another attribute? Or something else happened?

Please help.

Regards
Michał

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