openstack/kolla-ansible
Code Issues Proposed changes

Increase database connections to 10000

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Scale limit testing on a 64 node cluster with 13 TB RAM and 2600
cores showed that atleast 1800 database connections are required
to appropriately start 2000 virtual machines simulateounsly.  Other
documentation on the internet recommends larger values such as 8000,
so we set to a larger value that should be able to handle a maxed out
512GB ram per compute node cluster with all services enabled.

Change-Id: I8767cf3fb04e066cc22e796c647e944b4e4a1742
Closes-Bug: #1564275
This commit is contained in:
Steven Dake 2016-03-31 00:40:01 -07:00
parent 3a028e4334
commit 1fac190cec
1 changed files with 1 additions and 1 deletions
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2
ansible/roles/mariadb/templates/galera.cnf.j2
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@ -25,7 +25,7 @@ wsrep_sst_method=xtrabackup-v2
wsrep_sst_auth={{ database_user }}:{{ database_password }}
wsrep_slave_threads=4
max_connections=1000
max_connections=10000
[server]
pid-file=/var/lib/mysql/mariadb.pid