hydra/doc/dev-notes.txt
Eelco Dolstra 96a514c169
Remove the "releases" feature
We haven't used this in many years (it was really only used for nix
and patchelf releases).
2020-05-06 12:39:21 +02:00

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* Recreating the schema bindings:
$ make -C src/sql update-dbix
* Running the test server:
$ DBIC_TRACE=1 ./script/hydra_server.pl
* Setting the maximum number of concurrent builds per system type:
$ psql -d hydra <<< "insert into SystemTypes(system, maxConcurrent) values('i686-linux', 3);"
* Creating a user:
$ hydra-create-user root --email-address 'e.dolstra@tudelft.nl' \
--password-hash "$(echo -n foobar | sha1sum | cut -c1-40)"
(Replace "foobar" with the desired password.)
To make the user an admin:
$ hydra-create-user root --role admin
To enable a non-admin user to create projects:
$ hydra-create-user root --role create-projects
* Changing the priority of a scheduled build:
update buildschedulinginfo set priority = 200 where id = <ID>;
* Changing the priority of all builds for a jobset:
update buildschedulinginfo set priority = 20 where id in (select id from builds where finished = 0 and project = 'nixpkgs' and jobset = 'trunk');
* Steps to install:
- Install the Hydra closure.
- Set HYDRA_DATA to /somewhere.
- Run hydra_init.pl
- Start hydra_server
- Visit http://localhost:3000/
- Create a user (see above)
- Create a project, jobset etc.
- Start hydra_evaluator and hydra_queue_runner
* Job selection:
php-sat:build [system = "i686-linux"]
php-sat:build [same system]
tarball [same patchelfSrc]
--if system i686-linux --arg build {...}
* Restart all aborted builds in a given evaluation (e.g. 820909):
> update builds set finished = 0 where id in (select id from builds where finished = 1 and buildstatus = 3 and exists (select 1 from jobsetevalmembers where eval = 820909 and build = id));
* Restart all builds in a given evaluation that had a build step time out:
> update builds set finished = 0 where id in (select id from builds where finished = 1 and buildstatus != 0 and exists (select 1 from jobsetevalmembers where eval = 926992 and build = id) and exists (select 1 from buildsteps where build = id and status = 7));
* select * from (select project, jobset, job, system, max(timestamp) timestamp from builds where finished = 1 group by project, jobset, job, system) x join builds y on x.timestamp = y.timestamp and x.project = y.project and x.jobset = y.jobset and x.job = y.job and x.system = y.system;
select * from (select project, jobset, job, system, max(timestamp) timestamp from builds where finished = 1 group by project, jobset, job, system) natural join builds;
* Delete all scheduled builds that are not already building:
delete from builds where finished = 0 and not exists (select 1 from buildschedulinginfo s where s.id = builds.id and busy != 0);
* select x.project, x.jobset, x.job, x.system, x.id, x.timestamp, r.buildstatus, b.id, b.timestamp
from (select project, jobset, job, system, max(id) as id from Builds where finished = 1 group by project, jobset, job, system) as a_
natural join Builds x
natural join BuildResultInfo r
left join Builds b on b.id =
(select max(id) from builds c
natural join buildresultinfo r2
where x.project = c.project and x.jobset = c.jobset and x.job = c.job and x.system = c.system
and x.id > c.id and r.buildstatus != r2.buildstatus);
* Using PostgreSQL (version 9.2 or newer is required):
$ HYDRA_DBI="dbi:Pg:dbname=hydra;" hydra-server
* Find the builds with the highest number of build steps:
select id, (select count(*) from buildsteps where build = x.id) as n from builds x order by n desc;
* Evaluating the NixOS Hydra jobs:
$ ./hydra_eval_jobs ~/Dev/nixos-wc/release.nix --arg nixpkgs '{outPath = /home/eelco/Dev/nixpkgs-wc;}' --arg nixosSrc '{outPath = /home/eelco/Dev/nixos-wc; rev = 1234;}' --arg services '{outhPath = /home/eelco/services-wc;}' --argstr system i686-linux --argstr system x86_64-linux --arg officialRelease false
* Show all the failing jobs/systems in the nixpkgs:stdenv jobset that
succeed in the nixpkgs:trunk jobset:
select job, system from builds b natural join buildresultinfo where project = 'nixpkgs' and jobset = 'stdenv' and iscurrent = 1 and finished = 1 and buildstatus != 0 and exists (select 1 from builds natural join buildresultinfo where project = 'nixpkgs' and jobset = 'trunk' and job = b.job and system = b.system and iscurrent = 1 and finished = 1 and buildstatus = 0) order by job, system;
* Get all Nixpkgs jobs that have never built succesfully:
select project, jobset, job from builds b1
where project = 'nixpkgs' and jobset = 'trunk' and iscurrent = 1
group by project, jobset, job
having not exists
(select 1 from builds b2 where b1.project = b2.project and b1.jobset = b2.jobset and b1.job = b2.job and finished = 1 and buildstatus = 0)
order by project, jobset, job;