Overview You have a custom install on Red Hat Enterprise Linux (RHEL) and have encountered an issue where both ScaleArc instances in a HA pair are showing as Secondary. Further, the HA cluster setting...
Overview Internal inconsistencies in the cluster configuration database can sometimes result in the inability to add or delete database servers from a ScaleArc cluster. When trying to add or delete a ...
Overview Write Ignore is a feature by which a user can instruct ScaleArc not to treat specified queries as Write queries. You may encounter the following error message while trying to enable or disabl...
Overview ScaleArc users may encounter the following error message while trying to open the AlwaysOn AG Listener settings: ERROR: 2591Unable to connect server (<hostname:port>): The SQL Browser service...
Overview You are encountering the following error while adding database servers to a cluster: Error ID 2240: Failed to add server in configuration. Database server id already exists. Solution This...
Overview This article provides an explanation as to why ScaleArc is unable to successfully authenticate database clients using MySQL Connector/J 8.0.21 and instead gives an error that CLIENT_PLUGIN_AU...
Overview SSL configurations in ScaleArc either during cluster creation or when enabling SSL for an already created cluster does not work and the database servers stay in red state but go green as soon...
Overview Network communication breakdown between ScaleArc and the database servers can result in ScaleArc cluster monitor alerts stating that the database servers are down and that the server health c...
Overview This article explains why ScaleArc can sometimes be observed to be attempting connections to SQL Server through what may be interpreted as random TCP port numbers as opposed to the configured...
Overview In certain situations, an MSSQL Always-ON cluster fails on creation time. This article provides information and the steps required to resolve the cluster fails and recreate the cluster creati...