US 9,519,553 B2Granted

Failure resistant distributed computing system

AssigneeServiceNow, Inc.

InventorsSridhar Chandrashekar, Swapnesh Patel, Viral Shah, Anurag Garg, Anjali Chablani

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Abstract

A failure resistant distributed computing system includes primary and secondary datacenters each comprising a plurality of computerized servers. A control center selects orchestrations from a predefined list and transmits the orchestrations to the datacenters. Transmitted orchestrations include less than all machine-readable actions necessary to execute the orchestrations. The datacenters execute each received orchestration by referencing a full set of actions corresponding to the received orchestration as previously stored or programmed into the computerized server and executing the referenced full set of actions. At least one of the orchestrations comprises a failover operation from the primary datacenter to the secondary datacenter. Failover shifts performance of task from a set of processing nodes of the primary datacenter to a set of processing nodes of the secondary datacenter, such tasks including managing storage accessible by one or more remote clients and running programs on behalf of remote clients.

Claims21

Dependent claims

A failure resistant network-based distributed computing system with a plurality of datacenters comprising:

primary and secondary datacenters, each datacenter comprising:
a computerized server comprising:
a processor configured to execute a processing node;
and
a memory comprising instructions executable by the processor;
and
a control center comprising:
a memory;
and
a transmitter, wherein the control center is programmed to perform machine-executable operations stored in its memory to:
select orchestrations from a predefined list stored in its memory;
and
transmit, using the transmitter, an identification of the selected orchestrations to at least one of the computerized servers of the primary or secondary datacenters;
and
wherein:
the at least one computerized server of the primary and secondary datacenters is programmed to perform machine-executable operations to, responsive to receiving identification of one of the selected orchestrations from the control center, transmit, to the control center, a request for an updated list of machine-executable actions necessary to execute an identified orchestration, and execute the identified orchestration using its processor by referencing a set of actions corresponding to the identified orchestration as previously stored or programmed into the computerized server and executing the set of actions on the server processor modified by the updated list;
at least one of the machine-executable actions is to direct at least one other computerized server to execute prescribed tasks on its processor;
and
the predefined list of orchestrations comprises at least one machine-executable orchestration to conduct a failover operation from the primary datacenter to the secondary datacenter, the failover operation comprising shifting performance of tasks from at least one processing node of the primary datacenter to at least one processing node of the secondary datacenter, the tasks comprising:
managing storage accessible by one or more clients located remotely from the datacenters;
and
running programs of machine-implemented operations on behalf of clients remotely located from the datacenters.

19 more elements

A failure resistant network-based distributed computing system with a plurality of datacenter, comprising:

primary and secondary datacenters, each datacenter comprising:
a plurality of computerized servers, each of the computerized servers comprising:
a processor;
a communications port connected to a network;
a memory comprising instructions executable by the processor;
and
a messaging queue connected via the communications port with the computerized servers of the datacenter;
wherein:
the processor is configured to execute a processing node;
and
the messaging queues of the primary and secondary datacenters are communicatively interconnected via their respective communication ports by one or more links;
the system further comprising:
a control center comprising:
one or more digital data processing machines;
a communications port;
a memory;
and
a transmitter that communicates via signals sent over its communications port coupled to the at least one messaging queue of each datacenter, wherein the control center is programmed to perform machine-executable operations stored in its memory to:
select orchestrations from a predefined list stored in its memory;
and
transmit, using the transmitter, an identification of the selected orchestrations to a server of the computerized servers of the primary or secondary datacenters via a respective one of the messaging queues;
and
wherein:
each of the computerized servers of the primary and secondary datacenters is programmed to perform machine-executable operations to, responsive to receiving identification of one of the selected orchestrations from the control center via one of the messaging queues, execute the identified orchestration using its processor by referencing a full set of actions corresponding to the received orchestration as previously stored or programmed into the computerized server and executing the referenced full set of actions on the server processor;
and
at least one of the machine-executable actions is to direct at least one other computerized server to execute prescribed tasks on its processor;
the predefined list of orchestrations comprises at least one machine-executable orchestration to conduct a failover operation from the primary datacenter to the secondary datacenter, the failover operation comprising shifting performance of tasks from a set of processing nodes of the primary datacenter to a set of processing nodes of the secondary datacenter, the tasks comprising:
managing storage accessible by one or more clients located remotely from the datacenters;
and
running programs of machine-implemented operations on behalf of clients remotely located from the datacenters;
and
at least one of the computerized servers comprises instructions executable by its processor to perform operations comprising:
from the control center, receiving a differences list corresponding to a given orchestration;
and
performing the given orchestration by executing an amended set of predefined machine-executable actions, the amended set of predefined machine-executable actions comprising the full set of predefined machine-executable actions necessary to execute the given orchestration as stored or programmed into the memory of the computerized server and further as amended according to the differences list.

32 more elements

A computer-implemented method of operating a failure resistant distributed computing system comprising a primary datacenter and a secondary datacenter, each datacenter comprising a computerized server comprising a processor configured to execute a processing node, wherein the primary datacenter and the secondary datacenter are communicatively interconnected, the system further comprising a control center, the method comprising machine-executed operations of:

selecting with the control center orchestrations from a predefined list stored in the control center;
transmitting via the control center an identification of the selected orchestrations to the computerized server of at last one of the primary datacenter or the secondary datacenter;
and
performing operations by the computerized servers of the primary datacenter and the secondary datacenters comprising:
receiving identification of one of the selected orchestrations from the control center;
and
responding to the receiving identification by executing the identified orchestration by referencing a set of actions corresponding to the received orchestration as previously stored or programmed into the computerized server and executing the referenced set of actions;
wherein:
at least one of the referenced set of actions comprises directing at least one other computerized server to execute prescribed tasks;
and
the predefined list of orchestrations comprises at least one machine-executable orchestration to conduct a failover operation from the primary datacenter to the secondary datacenter;
the failover operation comprises:
executing pre-validation tests at the primary datacenter;
stopping the failover operation if any of the pre-validation tests fail;
and
unless any of the pre-validation tests fail:
shifting performance of the tasks from a set of processing nodes of the primary datacenter to a set of processing nodes of the secondary datacenter, the tasks comprising:
managing storage accessible by one or more clients located remotely from the datacenters;
and
running programs of machine-implemented operations on behalf of clients remotely located from the datacenters.

17 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/985,740Filed 31 Dec 2015 · us provisional application
Priority: 31 Dec 2014
Published: US 2016/0188427 A130 Jun 2016
Granted: 13 Dec 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

G06F 11/2025
Failover techniques: using centralised failover control functionality
G06F 11/0709
The processing taking place on a specific hardware platform or in a specific software environment: in a distributed system consisting of a…
G06F 11/2007
Where interconnections or communication control functionality are redundant: using redundant communication media
G06F 11/2038
Where processing functionality is redundant: with a single idle spare processing component

Family

Application62/098,430Us provisional application · filed 31 Dec 2014
US 2016/0188427 A1Pre-grant publication · published 30 Jun 2016
US 9,519,553 B2This patent

From the US filing history. Foreign family members aren’t listed.

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