1. A method for performing resource pool size maintenance for an application server, comprising:
triggering a resource pool shrink check;
determining that pool shrinking is necessary;
reducing resources in an unavailable deque; and
reducing resources in an available deque.
2. The method of claim 1 wherein said triggering a resource pool shrink check includes:
determining that a period of time has expired; and
performing the resource pool shrink check at the expiration of the period of time.
3. The method of claim 2 wherein the period of time is set by a programmable attribute.
4. The method of claim 1 wherein said determining that pool shrinking is necessary includes:
detecting resources contained in an available deque or a unavailable deque.
5. The method of claim 1 wherein determining that pool shrinking is necessary includes:
determining the number of resources in the resource pool is greater than a maximum resource pool threshold value.
6. The method of claim 5 wherein the maximum resource pool threshold value is set by a programmable attribute.
7. The method of claim 1 wherein reducing resources in an unavailable deque includes:
reducing resources in an unavailable deque to coincide with a maximum unavailable resources threshold.
8. The method of claim 7 wherein the reduced resources in the unavailable deque are destroyed.
9. The method of claim 1 wherein reducing resources in an available deque includes:
reducing resources in an available deque to coincide with a maximum available resources threshold.
10. The method of claim 9 wherein resources in the available deque are destroyed.
11. A method for performing resource pool maintenance for an application server, comprising:
triggering a test for pool resources;
performing a test on pool resources; and
refreshing pool resources based on the pool resources testing.
12. The method of claim 11 wherein said triggering a test for pool resources includes:
determining that a period of time has expired; and
performing the resource pool shrink check at the expiration of the period of time.
13. The method of claim 11 wherein said performing a test on pool resources includes:
determining if pool resources are functioning properly, wherein the resources are refreshed if they are not functioning properly.
14. A method for performing maintenance on connection pool deques in an application server, comprising:
traversing an unavailable deque and a reserved deque;
performing maintenance on the unavailable deque; and
performing maintenance on the reserved deque.
15. The method as claimed in claim 14 wherein said traversing an unavailable and a reserved deques includes:
determining what resources are available in the unavailable deque and the reserved deques.
16. The method as claimed in claim 14 wherein said performing maintenance on the unavailable deque includes:
scheduling resource creation for each resource in the unavailable deque.
17. The method as claimed in claim 14 wherein said performing maintenance on the reserved deque includes:
scheduling resource creation for each resource in the reserved deque.
18. A method for performing resource creation in a connection pool in an application server, comprising:
generating a resource in connection pool;
confirming the generation of the resource in the connection pool;
moving the resource to an available deque;
19. The method of claim 18 further comprising:
determining that a period of time has expired; and
generating a resource at the expiration of the period of time.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. Tensioning device of a traction mechanism drive, comprising a base part that is fixed in place, a pivot arm that is allocated to said base part and can pivot about a rotary bearing that includes a hub, a pin of the base part, and a sliding bearing, and a spring that is inserted between the base part and the pivot arm exerts an expansion force and provides a non-positive support of a tensioning roller that is connected to the pivot arm on a traction mechanism, and includes a damping device that damps adjusting movements of the pivot arm, the pin of the rotary bearing is fixed with one end in the base part and with the other end in a support disk and the damping device comprises two separate spring-loaded friction elements, including: a friction disk that is supported with a positive-fit on the support disk connected to the pin of the base part and a friction-fit on the pivot arm, and a friction ring that surrounds a spring end of the spring and is fixed on the pivot arm and is supported with a friction-fit on an inner wall of the base part, wherein the friction ring includes a joint that is supported with a lateral surface with a friction-fit on the inner wall of the base part, and the friction ring has a wedge that is directed inward in the radial direction and is inserted in an operating state between a wedge surface of a projection of the pivot arm extending in the axial direction and a spring end of the spring.
2. Tensioning device according to claim 1, wherein the friction disk engages with the support disk by gearing.
3. Tensioning device according to claim 1, wherein the friction disk forms, on a side of the pivot arm, at least one friction surface that is at least one of directed in a radial direction, tapered conically, or is directed in an axial direction.
4. Tensioning device according to claim 3, wherein the friction disk engages with at least one of an inner cone or an outer cone in a correspondingly shaped axial receptacle of the pivot arm.
5. Tensioning device according to claim 4, wherein the inner cone and the outer cone of the friction disk have flank angles that match each other.
6. Tensioning device according to claim 1, wherein the joint of the friction ring is supported with at least one friction block with a friction-fit on the inner wall of the base part.
7. Tensioning device according to claim 1, wherein PA 46 with a chemically linked PTFE additive is provided as a material for at least one of the friction disk or for the friction ring.
8. Tensioning device according to claim 1, wherein the pin forms stepped end sections on two sides, with said stepped end sections being fit as a joint assembly in a bore of the base part or the support disk and being attached with at least one of a non-positive or material-fit.
9. Tensioning device according to claim 6, wherein components directly or indirectly forming the rotary bearing, the base part, the pivot arm, the pin, and the support disk are made from the same materials.
10. Tensioning device according to claim 1, wherein the pivot arm forms a collar that extends in the axial direction and surrounds the support disk on an outside while forming an annular gap.
11. Tensioning device according to claim 10, wherein a sealing element is inserted in the annular gap between the collar of the pivot arm and the support disk for sealing the damping device.
12. Tensioning device according to claim 1, wherein the tensioning roller is positioned on the pivot arm at an end on a side directed toward the base part.
13. Tensioning device according to claim 2, wherein the gearing is Hirth gearing.