Recovery of local resource

Patent metadata

Field	Value
Publication number	US-9983952-B2
Application number	US-201514964974-A
Country	US
Kind code	B2
Filing date	Dec 10, 2015
Priority date	Dec 22, 2014
Publication date	May 29, 2018
Grant date	May 29, 2018

Abstract

A method, system, and computer program product that includes a processor cataloging a current resource definition and a current transaction state for the resource. The processor recovers the resource and a transaction state for the resource after an emergency restart, by utilizing the current resource definition and the current transaction state, wherein the recovering comprises recovering transactions of the resource. The processor completes or backs out of the transactions. The processor closes the resource and the processor recovers the resource by utilizing a global catalog.

First claim

What is claimed is:

1. A computer-implemented method comprising:
cataloging, by a processor, a current resource definition and a current transaction state for a resource;
recovering, by the processor, the resource and a transaction state for the resource after an emergency restart subsequent to one of an immediate shutdown or an abnormal shutdown of the resource, by utilizing the current resource definition and the current transaction state, wherein the recovering comprises recovering transactions of the resource;
completing or backing out of, by the processor, the transactions;
closing, by the processor, the resource, comprising:
verifying, by the processor, that the resource and the transaction state were recovered by utilizing the current resource definition and the current transaction state; and
based on the verifying, closing the resource; and

recovering, by the processor, the resource by utilizing a global catalog.

2. The computer-implemented method of claim 1 , wherein the transaction state is any type of resource data state that may be recovered by the processor.

3. The computer-implemented method of claim 1 , further comprising:
indicating, by the processor, to a global controller that the resource is being recovered utilizing the current transaction state.

4. The computer-implemented method of claim 1 , further comprising:
indicating, by the processor, to a global controller that the resource has been recovered utilizing the current transaction state.

5. The computer-implemented method of claim 1 , further comprising:
indicating, by the processor, to a global controller that the transactions have been completed or backed out of.

6. The computer-implemented method of claim 1 , wherein the recovering the resource by utilizing a global catalog comprises:
obtaining, by the processor, an indication that the resource has closed; and
based on the obtaining, recovering, by the processor, the resource by utilizing a global catalog.

7. The computer-implemented method of claim 1 , further comprising:
recovering, by the processor, an additional resource by utilizing the global catalog in parallel with the recovering the resource and the transaction state by utilizing the current resource definition and the current transaction state.

8. The computer-implemented method of claim 1 , the recovering the resource by utilizing a global catalog comprising:
obtaining, by the processor, an indicator associated with the resource; and
based on obtaining the indicator, recovering the resource by utilizing a global catalog.

9. The computer-implemented method of claim 1 , further comprising:
obtaining, by the processor, an indication that the recovering the resource by utilizing the global catalog is complete; and
generating, by the processor, a message.

10. A computer program product comprising:
a non-transitory computer readable storage medium readable by a processor and storing instructions for execution by the processor for performing a method comprising:
cataloging, by the processor, a current resource definition and a current transaction state for a resource;
recovering, by the processor, the resource and a transaction state for the resource after an emergency restart subsequent to one of an immediate shutdown or an abnormal shutdown of the resource, by utilizing the current resource definition and the current transaction state, wherein the recovering comprises recovering transactions of the resource;
completing or backing out of, by the processor, the transactions;
closing, by the processor, the resource, comprising:
verifying, by the processor, that the resource and the transaction state were recovered by utilizing the current resource definition and the current transaction state; and
based on the verifying, closing the resource; and

recovering, by the processor, the resource by utilizing a global catalog.

11. The computer program product of claim 10 , wherein the transaction state is any type of resource data state that may be recovered by the processor.

12. The computer program product of claim 10 , the method further comprising:
indicating, by the processor, to a global controller that the resource is being recovered utilizing the current transaction state.

13. The computer program product of claim 10 , the method further comprising:
indicating, by the processor, to a global controller that the resource has been recovered utilizing the current transaction state.

14. The computer program product of claim 10 , the method further comprising:
indicating, by the processor, to a global controller that the transactions have been completed or backed out of.

15. The computer program product of claim 10 , wherein the recovering the resource by utilizing a global catalog comprises:
obtaining, by the processor, an indication that the resource has closed; and
based on the obtaining, recovering, by the processor, the resource by utilizing a global catalog.

16. The computer program product of claim 10 , the method further comprising:
recovering, by the processor, an additional resource by utilizing the global catalog in parallel with the recovering the resource and the transaction state by utilizing the current resource definition and the current transaction state.

17. The computer program product of claim 10 , the recovering the resource by utilizing a global catalog comprising:
obtaining, by the processor, an indicator associated with the resource; and
based on obtaining the indicator, recovering the resource by utilizing a global catalog.

18. A system comprising:
a memory;
a processor in communication with the memory; and
program instructions executable by the processor via the memory to perform a method, the method comprising:
cataloging, by a processor, a current resource definition and a current transaction state for a resource;
recovering, by the processor, the resource and a transaction state for the resource after an emergency restart subsequent to one of an immediate shutdown or an abnormal shutdown of the resource, by utilizing the current resource definition and the current transaction state, wherein the recovering comprises recovering transactions of the resource;
completing or backing out of, by the processor, the transactions;
closing, by the processor, the resource, comprising:
verifying, by the processor, that the resource and the transaction state were recovered by utilizing the current resource definition and the current transaction state; and
based on the verifying, closing the resource; and

recovering, by the processor, the resource by utilizing a global catalog.

19. The system of claim 18 , wherein the transaction state is any type of resource data state that may be recovered by the processor.

Assignees

• IBM

Inventors

• Bohm Fraser P
• Li Guo Q
• Mitchell Ian J
• Wharmby Andrew D

Classifications

• G06F11/1471

  involving logging of persistent data for recovery · CPC title

• G06F2201/86

  Event-based monitoring · CPC title

• G06F2201/87

  Monitoring of transactions · CPC title

• G06F11/1441

  Resetting or repowering · CPC title

• G06F11/1474 Primary

  in transactions (updating of structured data in databases G06F16/23) · CPC title