8a223f395d
This part one of a two part HA Improvements feature that introduces
the collection of heartbeat health at the system level.
The full feature is intended to provide service management (SM)
with the last 2 seconds of maintenace's heartbeat health view that
is reflective of each controller's connectivity to each host
including its peer controller.
The heartbeat cluster summary information is additional information
for SM to draw on when needing to make a choice of which controller
is healthier, if/when to switch over and to ultimately avoid split
brain scenarios in a two controller system.
Feature Behavior: A common heartbeat cluster data structure is
introduced and published to the sysroot for SM. The heartbeat
service populates and maintains a local copy of this structure
with data that reflects the responsivness for each monitored
network of all the monitored hosts for the last 20 heartbeat
periods. Mtce sends the current cluster summary to SM upon request.
General flow of cluster feature wrt hbsAgent:
hbs_cluster_init: general data init
hbs_cluster_nums: set controller and network numbers
forever:
select:
hbs_cluster_add / hbs_cluster_del: - add/del hosts from mtcAgent
hbs_sm_handler -> hbs_cluster_send: - send cluster to SM
heartbeating:
hbs_cluster_append: add controller cluster to pulse request
hbs_cluster_update: get controller cluster data from pulse responses
hbs_cluster_save: save other controller cluster view in cluster vault
hbs_cluster_log: log cluster state changes (clog)
Test Plan:
PASS: Verify compute system install
PASS: Verify storage system install
PASS: Verify cluster data ; all members of structure
PASS: Verify storage-0 state management
PASS: Verify add of second controller
PASS: Verify add of storage-0 node
PASS: Verify behavior over Swact
PASS: Verify lock/unlock of second controller ; overall behavior
PASS: Verify lock/unlock of storage-0 ; overall behavior
PASS: Verify lock/unlock of storage-1 ; overall behavior
PASS: Verify lock/unlock of compute nodes ; overall behavior
PASS: Verify heartbeat failure and recovery of compute node
PASS: Verify heartbeat failure and recovery of storage-0
PASS: Verify heartbeat failure and recovery of controller
PASS: Verify delete of controller node
PASS: Verify delete of storage-0
PASS: Verify delete of compute node
PASS: Verify cluster when controller-1 active / controller-0 disabled
PASS: Verify MNFA and recovery handling
PASS: Verify handling in presence of multiple failure conditions
PASS: Verify hbsAgent memory leak soak test with continuous SM query.
PASS: Verify active controller-1 infra network failure behavior.
PASS: Verify inactive controller-1 infra network failure behavior.
Change-Id: I4154287f6dcf5249be5ab3180f2752ab47c5da3c
Story: 2003576
Task: 24907
Signed-off-by: Eric MacDonald <eric.macdonald@windriver.com>
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