Load Balanced Network File Accesses

• US 20180205787A1
• Filed: 03/16/2018
• Published: 07/19/2018
• Est. Priority Date: 11/11/2015
• Status: Active Grant

• Current Assignee: Weka.IO Ltd.
• Original Assignee: Weka.IO Ltd.
• Inventors: Ben Dayan, Maor, Palmon, Omri, Zvibel, Liran
• Granted Patent: US 11,108,852 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 16/182 Distributed file systems
• CPC Class Codes: H04L 2101/668 Internet protocol [IP] address subnets
• CPC Class Codes: H04L 43/0852 Delays
• CPC Class Codes: H04L 43/0882 Utilisation of link capacity
• CPC Class Codes: H04L 61/5007 Internet protocol [IP] addresses
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• CPC Class Codes: H04L 67/1008 based on parameters of servers, e.g. available memory or workload monitoring of computer activity G06F11/30
• CPC Class Codes: H04L 67/101 based on network conditions
• CPC Class Codes: H04L 67/1029 using data related to the state of servers by a load balancer
• CPC Class Codes: H04L 67/1097 for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06

Abstract

A system comprises control circuitry that is operable to assign a first of a plurality of computing devices to serve file system requests destined for any of a first plurality of network addresses; assign a second of the computing devices to serve file system requests destined for any of a second plurality of network addresses; maintain statistics regarding file system requests sent to each of the first plurality of network addresses and the second plurality of network addresses; and reassign, based on the statistics, the first of the computing devices to serve file system requests destined for a selected one of the second plurality of network addresses.

Claims

1-45. -45. (canceled)

46. A system comprising:

control circuitry, wherein the control circuitry is operable to maintain statistics regarding file system requests,

wherein prior to a network event;

a first computing device is operable to serve a file system request to any of a first plurality of IP addresses of a set of IP addresses,

a second computing device is operable to serve a file system request to any of a second plurality of IP addresses of the set of IP addresses, and

a third computing device is operable to serve a file system request to any of a third plurality of IP addresses of the set of IP addresses,

and wherein subsequent to the network event, based on the statistics, the control circuitry is operable to;

reassign the second computing device to serve file system requests destined for a first portion of the first plurality of IP addresses, and

reassign the third computing device to serve file system requests destined for a second portion of the first plurality of IP addresses.

47. The system of claim 46, wherein the network event is a failure of the first computing device.

48. The system of claim 46, wherein the network event is a lapse of a determined time interval.

49. The system of claim 46, wherein the network event is detection of a load imbalance among the first computing device and the second computing device.

50. The system of claim 46, wherein the statistics comprise, for each IP address of the set of IP addresses, a count of how many of the file system requests are sent to the IP address.

51. The system of claim 46, wherein the statistics comprise, for each IP address of the set of IP addresses, a count of number of bits sent to or from the IP address.

52. The system of claim 46, wherein the statistics comprise, for each IP address of the set of IP addresses, an indication of an amount of time required to serve those of the file system requests that are sent to the IP address.

53. The system of claim 46, wherein the reassignment is based on a goal of uniform distribution of file system requests.

54. The system of claim 46, wherein the control circuitry comprises one or more network adaptors.

55. The system of claim 46, wherein the first computing device is a virtual machine.

56. A system comprising:

control circuitry operable to;

assign a first computing device to serve file system requests destined for any of a first plurality of network addresses;

assign a second computing device to serve file system requests destined for any of a second plurality of network addresses;

assign a third computing device to serve file system requests destined for any of a third plurality of network addresses;

maintain statistics regarding file system requests serviced by the first computing device, the second computing device, and third computing device; and

reassign, based on the statistics, the first computing device to serve file system requests destined for one or more of the second plurality of network addresses and one or more of the third plurality of network addresses.

57. The system of claim 56, wherein the reassignment is in response to a network event.

58. The system of claim 57, wherein the network event is a failure of the first computing device.

59. The system of claim 57, wherein the network event is a lapse of a determined time interval.

60. The system of claim 57, wherein the network event is detection of a load imbalance between the first computing device and the second computing device.

61. The system of claim 56, wherein the statistics comprise, for each network address of the first plurality of network addresses and the second plurality of network addresses, a count of number of file system requests sent to the network address.

62. The system of claim 56, wherein the statistics comprise, for each network address of the first plurality of network addresses and the second plurality of network addresses, a count of number of bits sent to or from the network address.

63. The system of claim 56, wherein the statistics comprise, for each network address of the set of network addresses, an indication of an amount of time required to serve file system requests sent to the network address.

64. The system of claim 56, wherein the control circuitry is operable to:

detect a network event; and

in response to the network event, trigger a third computing device to transition out of a standby mode and take over serving of file system requests destined for a selected one or more of the first plurality of network addresses and/or a selected one or more of the second plurality of network addresses.

65. The system of claim 56, wherein the first computing device is a virtual machine.