Adjust jsonrpc configuration.

Signed-off-by: Sergii Kabashniuk <skabashniuk@redhat.com>

assembly/assembly-wsmaster-war/src/main/webapp/WEB-INF/classes/che/che.properties

@@ -629,20 +629,20 @@ che.server.secure_exposer.jwtproxy.memory_limit=128mb
 # in case if pool size would be exceeded message execution will be rejected
 che.core.jsonrpc.processor_max_pool_size=50
 # Initial json processing pool. Minimum number of threads that used to process major JSON RPC messages.
-che.core.jsonrpc.processor_core_pool_size=3
+che.core.jsonrpc.processor_core_pool_size=5
 # Configuration of queue used to process Json RPC messages.
 # org.eclipse.che.commons.lang.execution.ExecutorServiceProvider contains more information about this parameter
-che.core.jsonrpc.processor_queue_capacity=10000000
+che.core.jsonrpc.processor_queue_capacity=100000
 
 ## Configuration of major "/websocket-minor" endpoint
 # Maximum size of the JSON RPC processing pool
 # in case if pool size would be exceeded message execution will be rejected
 che.core.jsonrpc.minor_processor_max_pool_size=100
 # Initial json processing pool. Minimum number of threads that used to process minor JSON RPC messages.
-che.core.jsonrpc.minor_processor_core_pool_size=5
+che.core.jsonrpc.minor_processor_core_pool_size=15
 # Configuration of queue used to process Json RPC messages.
 # org.eclipse.che.commons.lang.execution.ExecutorServiceProvider contains more information about this parameter
-che.core.jsonrpc.minor_processor_queue_capacity=100
+che.core.jsonrpc.minor_processor_queue_capacity=10000
 
 ## Port the the http server endpoint that would be exposed with Prometheus metrics
 che.metrics.port=8087

multiuser/permission/che-multiuser-permission-workspace/src/main/java/org/eclipse/che/multiuser/permission/workspace/server/model/impl/WorkerImpl.java

@@ -22,6 +22,7 @@
 import javax.persistence.ManyToOne;
 import javax.persistence.NamedQueries;
 import javax.persistence.NamedQuery;
+import javax.persistence.QueryHint;
 import javax.persistence.Table;
 import org.eclipse.che.api.workspace.server.model.impl.WorkspaceImpl;
 import org.eclipse.che.multiuser.api.permission.server.model.impl.AbstractPermissions;
@@ -54,7 +55,8 @@
           "SELECT worker "
               + "FROM Worker worker "
               + "WHERE worker.userId = :userId "
-              + "AND worker.workspaceId = :workspaceId ")
+              + "AND worker.workspaceId = :workspaceId ",
+      hints = {@QueryHint(name = "eclipselink.query-results-cache", value = "true")})
 })
 @Table(name = "che_worker")
 public class WorkerImpl extends AbstractPermissions implements Worker {