Ravi Gummadi 5b9ce0b551 Cap the number of worker threads
Users can configure the number of worker threads however when it's
not specified the calculated number of workers can get too large on
hosts with a large number of CPUs.

Change-Id: Ic0c77d03ab67d3850fa6b46010e63d886a96cc31
2017-03-01 07:41:09 -05:00

124 lines
4.8 KiB
YAML

---
# Copyright 2014, Rackspace US, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Set the package install state for distribution packages
# Options are 'present' and 'latest'
galera_server_package_state: "latest"
galera_cluster_members: "{{ groups['galera_all'] }}"
galera_server_bootstrap_node: "{{ galera_cluster_members[0] }}"
galera_ignore_cluster_state: false
galera_upgrade: false
galera_wsrep_node_name: "{{ inventory_hostname }}"
galera_cluster_name: openstack_galera_cluster
# This variable will prevent the galera_cluster_name from changing unintentionally on a running cluster.
# To intentionally change the galera_cluster_name set this variable to True
galera_force_change_cluster_name: False
# The galera server-id should be set on all cluster nodes to ensure
# that replication is handled correctly and the error
# "Warning: You should set server-id to a non-0 value if master_host is
# set; we will force server id to 2, but this MySQL server will not act
# as a slave." is no longer present.
# galera_server_id: 0
# These are here to stub out the internal ROLE API.
# if these are used they should be set within the
# distro specific variable files found in vars/
galera_server_distro_package_pins: []
galera_debconf_items: []
galera_server_percona_distro_packages: []
galera_mariadb_server_package: "{{ _galera_mariadb_server_package }}"
galera_repo_url: "{{ _galera_repo_url }}"
galera_existing_cluster: true
galera_running_and_bootstrapped: false
galera_monitoring_user: monitoring
galera_monitoring_user_password: ""
galera_root_user: root
# WARNING: This option is deprecated and will be removed in v12.0
galera_gcache_size: 1024M
galera_max_heap_table_size: 32M
galera_tmp_table_size: 32M
galera_file_limits: 65535
galera_wait_timeout: 3600
## innodb options
galera_innodb_buffer_pool_size: 4096M
galera_innodb_log_file_size: 1024M
galera_innodb_log_buffer_size: 128M
## wsrep configuration
galera_wsrep_address: "{{ ansible_host }}"
galera_wsrep_cluster_address: "{% if galera_cluster_members | length > 1 %}{% for host in galera_cluster_members %}{{ hostvars[host]['ansible_host'] }}{% if not loop.last %},{% endif %}{% endfor %}{% endif %}"
galera_wsrep_node_incoming_address: "{{ galera_wsrep_address }}"
## Cap the maximum number of threads / workers when a user value is unspecified.
galera_wsrep_slave_threads_max: 16
galera_wsrep_slave_threads: "{{ [[ansible_processor_vcpus|default(2), 2] | max, galera_wsrep_slave_threads_max] | min }}"
galera_wsrep_retry_autocommit: 3
galera_wsrep_debug: 0
galera_wsrep_sst_method: xtrabackup-v2
galera_wsrep_provider_options:
- { option: "gcache.size", value: "{{ galera_gcache_size }}" }
galera_wsrep_sst_auth_user: "root"
galera_wsrep_sst_auth_password: "{{ galera_root_password }}"
# xtrabackup parallel/compression/sync threads
galera_xtrabackup_threads: 4
galera_pip_packages:
- MySQL-python
- pycrypto
galera_pip_package_state: "latest"
# Galera slow/unindexed query logging
galera_slow_query_logging: 0
galera_unindexed_query_logging: 0
## Tunable overrides
galera_my_cnf_overrides: {}
galera_cluster_cnf_overrides: {}
galera_debian_cnf_overrides: {}
# Set the max connections value for galera. Set this value to override the
# computed value which is (100 x vCPUs) with a cap of 1600. If computed, the
# lowest value throughout the cluster will be used which is something to note
# if deploying galera on different hardware.
# galera_max_connections: 500
# Settings for percona and qpress
# The [percona|qpress]_arch_[url|sha256] hashes can be found in the distro vars files.
galera_package_arch: "{{ hostvars[inventory_hostname]['ansible_architecture'] }}"
# Validate SSL certificates when downloading the galera deb above
# May be set to "no" when proxy server is intercepting the certificates.
percona_package_download_validate_certs: yes
percona_package_url: "{{ percona_arch_url.get( galera_package_arch | lower ) }}"
percona_package_sha256: "{{ percona_arch_sha256.get( galera_package_arch | lower ) }}"
percona_package_path: "/opt/{{ percona_package_url | basename }}"
qpress_package_download_validate_certs: yes
qpress_package_url: "{{ qpress_arch_url.get( galera_package_arch | lower ) }}"
qpress_package_sha256: "{{ qpress_arch_sha256.get( galera_package_arch | lower ) }}"
qpress_package_path: "/opt/{{ qpress_package_url | basename }}"