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<Resource name="jdbc/flexdbDS" auth="Container"
type="oracle.ucp.jdbc.PoolDataSource"
factory="oracle.ucp.jdbc.PoolDataSourceImpl"
connectionFactoryClassName="oracle.jdbc.pool.OracleDataSource"
minPoolSize="0"
maxPoolSize="100"
initialPoolSize="0"
autoCommit="false"
url="jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=tcp)(HOST=**HOSTNAME**)(PORT=**PORT**)))(CONNECT_DATA=(SERVICE_NAME=**SERVICE_NAME**)))"
user="fd_admin"
password="**FD_ADMIN_PASSWORD**"
fastConnectionFailoverEnabled="true"
connectionCachingEnabled="true"
connectionCacheProperties="{InitialLimit=0, MinLimit=0, MaxLimit=100, ConnectionWaitTimeout=60, InactivityTimeout=60, AbandonedConnectionTimeout=300, PropertyCheckInterval=30}"
validationQuery="select 1 from dual"
testOnBorrow="true"/> |
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- URL must be in the format listed in the example, the JDBC short format of host:sid:port should not be used.
- If RAC is used for the database, multiple nodes can be listed in the address list of the URL or it can point to the scan listener for the cluster. Example:
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- Sample URL for a RAC implementation that has a primary and secondary scan listener connecting to to a service name GOLD-CLOUD. This includes connection timeout, retry, and retry delay settings.
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url="jdbc:oracle:thin:@(DESCRIPTION = CONNECT_TIMEOUT=120) (RETRY_COUNT=20) (RETRY_DELAY=3) (TRANSPORT_CONNECT_TIMEOUT=3) (ADDRESS_LIST =(LOAD_BALANCE=on) (ADDRESS = (PROTOCOL = TCP) (HOST=primary-scan) (PORT=1521))) (ADDRESS_LIST =(LOAD_BALANCE=on) (ADDRESS = (PROTOCOL = TCP) (HOST=secondary-scan) (PORT=1521))) (CONNECT_DATA=(SERVICE_NAME = gold-cloud)))" |
- Type and factory must reference the UCP driver.
- Actual timeout values will be environment specific. I would start with the defaults(not setting them) and then increase as needed.
- Set CONNECT_TIMEOUT to a high value to prevent logon storms.
- DO NOT use RETRY_COUNT without RETRY_DELAY
- Set LOAD_BALANCE= ON per ADDRESS_LIST to balance SCANs
- Use one DESCRIPTION and more than one causes long delays