Hello Everyone,
So here is v4.
Regards,
Lukas Straub
Changes:
v4:
-use new yank api that finally has been merged
-cleanup the test a bit by using numbers instead of "hosta" and "hostb"
-resource-agent: Don't set master-score to 0 on invalid configuration
v3:
-resource-agent: Don't determine local qemu state by remote master-score, query
directly via qmp instead
-resource-agent: Add max_queue_size parameter for colo-compare
-resource-agent: Fix monitor action on secondary returning error during
clean shutdown
-resource-agent: Fix stop action setting master-score to 0 on primary on
clean shutdown
v2:
-use new yank api
-drop disk_size parameter
-introduce pick_qemu_util function and use it
Overview:
Hello Everyone,
These patches introduce a resource agent for fully automatic management of colo
and a test suite building upon the resource agent to extensively test colo.
Test suite features:
-Tests failover with peer crashing and hanging and failover during checkpoint
-Tests network using ssh and iperf3
-Quick test requires no special configuration
-Network test for testing colo-compare
-Stress test: failover all the time with network load
Resource agent features:
-Fully automatic management of colo
-Handles many failures: hanging/crashing qemu, replication error, disk error, ...
-Recovers from hanging qemu by using the "yank" oob command
-Tracks which node has up-to-date data
-Works well in clusters with more than 2 nodes
Run times on my laptop:
Quick test: 200s
Network test: 800s (tagged as slow)
Stress test: 1300s (tagged as slow)
For the last two tests, the test suite needs access to a network bridge to
properly test the network, so some parameters need to be given to the test
run. See tests/acceptance/colo.py for more information.
Regards,
Lukas Straub
Lukas Straub (6):
avocado_qemu: Introduce pick_qemu_util to pick qemu utility binaries
boot_linux.py: Use pick_qemu_util
colo: Introduce resource agent
colo: Introduce high-level test suite
configure,Makefile: Install colo resource-agent
MAINTAINERS: Add myself as maintainer for COLO resource agent
MAINTAINERS | 6 +
configure | 7 +
meson.build | 5 +
meson_options.txt | 2 +
scripts/colo-resource-agent/colo | 1527 +++++++++++++++++++++
scripts/colo-resource-agent/crm_master | 44 +
scripts/colo-resource-agent/crm_resource | 12 +
tests/acceptance/avocado_qemu/__init__.py | 15 +
tests/acceptance/boot_linux.py | 11 +-
tests/acceptance/colo.py | 654 +++++++++
10 files changed, 2274 insertions(+), 9 deletions(-)
create mode 100755 scripts/colo-resource-agent/colo
create mode 100755 scripts/colo-resource-agent/crm_master
create mode 100755 scripts/colo-resource-agent/crm_resource
create mode 100644 tests/acceptance/colo.py
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2.30.0