<div class="releasenotes">
</notextile>
-h2(#main). development main (as of 2022-12-22)
+h2(#main). development main (as of 2023-04-18)
+
+"previous: Upgrading to 2.6.1":#v2_6_1
+
+h3. UseAWSS3v2Driver option removed
+
+The old "v1" S3 driver for keepstore has been removed. The new "v2" implementation, which has been the default since Arvados 2.5.0, is always used. The @Volumes.*.DriverParameters.UseAWSS3v2Driver@ configuration key is no longer recognized. If your config file uses it, remove it to avoid warning messages at startup.
+
+h2(#v2_6_1). v2.6.1 (2023-04-17)
+
+"previous: Upgrading to 2.6.0":#v2_6_0
+
+h3. Performance improvement for permission row de-duplication migration
+
+The migration which de-duplicates permission links has been optimized. We recommend upgrading from 2.5.0 directly to 2.6.1 in order to avoid the slow permission de-deplication migration in 2.6.0.
+
+You should still plan for the arvados-api-server package upgrade to take longer than usual due to the database schema update changing the integer id column in each table from 32-bit to 64-bit.
+
+h2(#v2_6_0). v2.6.0 (2023-04-06)
"previous: Upgrading to 2.5.0":#v2_5_0
+h3. Slow migration on upgrade
+
+Important! This upgrade includes a database schema update changing the integer id column in each table from 32-bit to 64-bit. Because it touches every row in the table, on moderate to large sized installations *this may be very slow* (on the order of hours). Plan for the arvados-api-server package upgrade to take longer than usual.
+
+h3. Default request concurrency, new limit on log requests
+
+The configuration value @API.MaxConcurrentRequests@ (the number of concurrent requests that will be accepted by a single instance of arvados-controller) now has a default value of 64, instead of being unlimited.
+
+New configuration value @API.LogCreateRequestFraction@ (default 0.50) limits requests that post live container logs to the API server, to avoid situations where log messages crowd out other more important requests.
+
+h3. New limit on concurrent workflows
+
+New configuration options @CloudVMs.SupervisorFraction@ (default 0.30) limits the number of concurrent workflow supervisors, to avoid situations where too many workflow runners crowds out actual workers.
+
+h3. Default limit for cloud VM instances
+
+There is a new configuration entry @CloudVMs.MaxInstances@ (default 64) that limits the number of VMs the cloud dispatcher will run at a time. This may need to be adjusted to suit your anticipated workload.
+
+Using the obsolete configuration entry @MaxCloudVMs@, which was previously accepted in config files but not obeyed, will now result in a deprecation warning.
+
+h3. Default frequency for running keep-balance has changed
+
+The frequency that @keep-balance@ will run (@Collections.BalancePeriod@) has been changed from every 10 minutes to every 6 hours.
+
h2(#v2_5_0). v2.5.0 (2022-12-22)
"previous: Upgrading to 2.4.4":#v2_4_4
h3. Dispatchers require PostgreSQL database access
-All dispatchers (cloud, slurm, and LSF) now connect directly to the PostgreSQL database. Make sure these connections are supported by your network firewall rules, PostgreSQL connection settings, and PostgreSQL server configuration (pg_hba.conf) as shown in the "PostgreSQL install instructions":{{site.baseurl}}/install/install-postgresql.html.
+All dispatchers (cloud, LSF, and Slurm) now connect directly to the PostgreSQL database. Make sure these connections are supported by your network firewall rules, PostgreSQL connection settings, and PostgreSQL server configuration (in @pg_hba.conf@) as shown in the "PostgreSQL install instructions":{{site.baseurl}}/install/install-postgresql.html.
h3. Google or OpenID Connect login restricted to trusted clients
projects / arvados.git / blobdiff