back out numConnectionsPerThreadLocal=1 due to #3508

Signed-off-by: Lee Surprenant <lmsurpre@us.ibm.com>

Author: lmsurpre

demo/fhir/configDropins/overrides/datasources.xml

@@ -12,7 +12,7 @@
              password="change-password"
              currentSchema="fhirdata"
          />
-        <connectionManager maxPoolSize="200" minPoolSize="20" connectionTimeout="60s" maxIdleTime="2m" numConnectionsPerThreadLocal="1"/>
+        <connectionManager maxPoolSize="200" minPoolSize="20" connectionTimeout="60s" maxIdleTime="2m" numConnectionsPerThreadLocal="0"/>
     </dataSource>
 
     <!-- The default bulkdata.xml config includes a batchPersistence element that

docs/src/pages/guides/DB2OnCloudSetup.md

@@ -189,7 +189,7 @@ You are now able to connect to the database as the FHIRSERVER user using only th
 
 3. Click Administration > User Management
 
-4. Click Add User, and enter the user details with a sufficiently complex password. Set the `User Privilege` as `User`. 
+4. Click Add User, and enter the user details with a sufficiently complex password. Set the `User Privilege` as `User`.
 
 5. Save these details for the datasource.xml.
 
@@ -320,14 +320,14 @@ Create a file as the following
             portNumber="${DB_PORT}"
             securityMechanism="15"
             sslConnection="true" />
-        <connectionManager maxPoolSize="200" minPoolSize="20" connectionTimeout="60s" maxIdleTime="2m" numConnectionsPerThreadLocal="1"/>
+        <connectionManager maxPoolSize="200" minPoolSize="20" connectionTimeout="60s" maxIdleTime="2m" numConnectionsPerThreadLocal="0"/>
     </dataSource>
 </server>
 ```
 
 #### For Db2 Auth user
 
-Create a file as the following: 
+Create a file as the following:
 
 ``` xml
 <server>
@@ -342,11 +342,11 @@ Create a file as the following:
             databaseName="${DB_NAME}"
             driverType="4"
             portNumber="${DB_PORT}"
-            sslConnection="true" 
+            sslConnection="true"
             user="fhirserver"
             password="mypassword"
          />
-        <connectionManager maxPoolSize="200" minPoolSize="20" connectionTimeout="60s" maxIdleTime="2m" numConnectionsPerThreadLocal="1"/>
+        <connectionManager maxPoolSize="200" minPoolSize="20" connectionTimeout="60s" maxIdleTime="2m" numConnectionsPerThreadLocal="0"/>
     </dataSource>
 </server>
 ```

docs/src/pages/guides/FHIRPerformanceGuide.md

@@ -145,7 +145,7 @@ The recommended approach for tenant datatstore configuration is to use individua
                  sslmode="require"
                  sslrootcert="resources/security/your-postgres-host.crt" />
         />
-        <connectionManager maxPoolSize="200" minPoolSize="20" connectionTimeout="60s" maxIdleTime="2m" numConnectionsPerThreadLocal="1"/>
+        <connectionManager maxPoolSize="200" minPoolSize="20" connectionTimeout="60s" maxIdleTime="2m" numConnectionsPerThreadLocal="0"/>
     </dataSource>
 ```
 
@@ -266,7 +266,7 @@ The IBM FHIR Server supports multi-tenant SearchParameter extensions described i
 
 The IBM FHIR Server team recommends each tenant include an `extension-search-parameters.json` file, even if it is empty.
 
-An example of the empty search parameters file is: 
+An example of the empty search parameters file is:
 
 ``` json
 {

fhir-server-webapp/src/main/liberty/config/configDropins/disabled/datasource-db2.xml

@@ -13,6 +13,6 @@
              currentSchema="FHIRDATA"
              driverType="4"
          />
-        <connectionManager maxPoolSize="200" minPoolSize="20" connectionTimeout="60s" maxIdleTime="2m" numConnectionsPerThreadLocal="1"/>
+        <connectionManager maxPoolSize="200" minPoolSize="20" connectionTimeout="60s" maxIdleTime="2m" numConnectionsPerThreadLocal="0"/>
     </dataSource>
 </server>

fhir-server-webapp/src/main/liberty/config/configDropins/disabled/datasource-postgresql.xml

@@ -12,6 +12,6 @@
              password="change-password"
              currentSchema="fhirdata"
          />
-        <connectionManager maxPoolSize="200" minPoolSize="20" connectionTimeout="60s" maxIdleTime="2m" numConnectionsPerThreadLocal="1"/>
+        <connectionManager maxPoolSize="200" minPoolSize="20" connectionTimeout="60s" maxIdleTime="2m" numConnectionsPerThreadLocal="0"/>
     </dataSource>
 </server>