US 9,806,978 B2Granted

Monitoring of replicated data instances

AssigneeAmazon Technologies, Inc.

InventorsGrant Alexander MacDonald McAlister, Swaminathan Sivasubramanian, Barry B. Hunter, Jr., Silas M. Brazil

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Abstract

Replicated instances in a database environment provide for automatic failover and recovery. A monitoring component can obtain a lease enabling the component to periodically communicate with, and monitor, one or more data instances in the data environment, where the data instance can be a replicated instance including a primary and a secondary replica. For a large number of instances, the data environment can be partitioned such that each monitoring component can be assigned a partition of the workload. In the event of a failure of a monitoring component, the instances can be repartitioned and the remaining monitoring components can be assigned to the new partitions to substantially evenly distribute the workload.

Claims20

Dependent claims

A system for monitoring provisioned data stores, comprising:

a processor;
and
a memory device including instructions that, upon being executed by the processor, cause the system to:
allocate one or more monitoring components of a plurality of monitoring components to each data zone of a plurality of data zones;
assign, for each data zone of the plurality of data zones, each monitoring component, allocated to the data zone, to one or more respective data stores associated with the data zone;
determine, for at least one data zone of the plurality of data zones, whether a respective heartbeat message is received from each monitoring component allocated to the at least one data zone, wherein the determination is made by at least one of the monitoring components allocated to the at least one data zone;
determine, within a specified heartbeat failure time, that a first respective heartbeat message is not received from at least one first monitoring component;
and
reassign at least some of the plurality of monitoring components such that there is at least one second monitoring component reassigned to the one or more data stores previously assigned to the at least one first monitoring component, wherein a second respective heartbeat message was received from the second monitoring component within the specified heartbeat failure time.

6 more elements

A computer-implemented method for monitoring provisioned data stores, comprising:

under control of one or more computer systems configured with executable instructions,
assigning one or more monitoring components of a plurality of monitoring components to one or more respective data stores associated with each data zone of a plurality of data zones;
determining, for at least one data zone, a respective availability of each monitoring component assigned to the one or more data stores associated with the at least one data zone, wherein the determination is made by at least one of the monitoring components assigned to the at least one data zone;
and
determining that at least one first monitoring component is unavailable;
and
reassigning at least one second monitoring component to the one or more data stores previously assigned to the at least one first monitoring component, wherein the at least one second monitoring component is determined to be available.

4 more elements

A non-transitory computer-readable medium including instructions for monitoring provisioned data stores, the instructions, upon being executed by a processor, causes the processor to:

assign one or more monitoring components of a plurality of monitoring components to one or more respective data stores associated with each data zone of a plurality of data zones;
determine, for at least one data zone, a respective availability of each monitoring component assigned to the one or more data stores associated with the at least one data zone, wherein the determination is made by at least one of the monitoring components assigned to the at least one data zone;
determine that at least one first monitoring component is unavailable;
and
reassign at least one second monitoring component to the one or more data stores previously assigned to the at least one first monitoring component, wherein the at least one second monitoring component is determined to be available.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/216,521Filed 17 Mar 2014 · continuation
Priority: 26 Oct 2009
Published: US 2014/0201363 A117 Jul 2014
Granted: 31 Oct 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

H04L 43/10
Arrangements for monitoring or testing data switching networks: active monitoring, e.g. heartbeat, ping or trace-route
G06F 11/2028
Failover techniques: eliminating a faulty processor or activating a spare
G06F 11/203
Failover techniques: using migration
G06F 11/2035
Where processing functionality is redundant: without idle spare hardware

Family

Application12/606,106Parent of this continuation · filed 26 Oct 2009
US 2014/0201363 A1Pre-grant publication · published 17 Jul 2014
US 8,676,753 B2Parent of this continuation
US 2011/0099146 A1Published application
US 9,806,978 B2This patent

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