after rebuild => SOLR schema version not supported: 2.8. Supported versions are [2.7]

[terchris]

Hi
I did a "docker-compose build --no-cache". It seems that there has been a change in the SOLR schema. This is my output:
ckan | Loading paste environment: config:/srv/app/production.ini
ckan | 2018-04-01 16:36:57,442 CRIT Supervisor running as root (no user in config file)
ckan | 2018-04-01 16:36:57,443 WARN For [program:ckan-worker], redirect_stderr=true but stderr_logfile has also been set to a filename, the filename has been ignored
ckan | 2018-04-01 16:36:57,444 INFO Included extra file "/etc/supervisord.d/worker.conf" during parsing
ckan | Unlinking stale socket /tmp/supervisor.sock
ckan | 2018-04-01 16:36:57,852 INFO RPC interface 'supervisor' initialized
ckan | 2018-04-01 16:36:57,853 CRIT Server 'unix_http_server' running without any HTTP authentication checking
ckan | 2018-04-01 16:36:57,855 INFO supervisord started with pid 24
ckan | 2018-04-01 16:36:58,859 INFO spawned: 'ckan-worker' with pid 31
ckan | 2018-04-01 16:36:59,861 INFO success: ckan-worker entered RUNNING state, process has stayed up for > than 1 seconds (startsecs)
solr | 28181 INFO (qtp1989972246-18) [ x:ckan] o.a.s.c.S.Request [ckan] webapp=/solr path=/select params={q=:&rows=1&wt=json} hits=0 status=0 QTime=0
solr | 28183 INFO (qtp1989972246-18) [ x:ckan] o.a.s.c.S.Request [ckan] webapp=/solr path=/select params={q=:&rows=1&wt=json} hits=0 status=0 QTime=0
solr | 28340 INFO (qtp1989972246-17) [ x:ckan] o.a.s.c.S.Request [ckan] webapp=/solr path=/admin/file params={file=schema.xml} status=0 QTime=70
solr | 28341 INFO (qtp1989972246-12) [ x:ckan] o.a.s.c.S.Request [ckan] webapp=/solr path=/admin/file params={file=schema.xml} status=0 QTime=73
ckan | Traceback (most recent call last):
ckan | File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 247, in loadapp
ckan | Traceback (most recent call last):
ckan | File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 247, in loadapp
ckan | return loadobj(APP, uri, name=name, **kw)
ckan | File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 272, in loadobj
ckan | return context.create()
ckan | File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 710, in create
ckan | return self.object_type.invoke(self)
ckan | File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 146, in invoke
ckan | return fix_call(context.object, context.global_conf, **context.local_conf)
ckan | File "/usr/lib/python2.7/site-packages/paste/deploy/util.py", line 55, in fix_call
ckan | return loadobj(APP, uri, name=name, **kw)
ckan | File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 272, in loadobj
ckan | return context.create()
ckan | File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 710, in create
ckan | return self.object_type.invoke(self)
ckan | File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 146, in invoke
ckan | return fix_call(context.object, context.global_conf, **context.local_conf)
ckan | File "/usr/lib/python2.7/site-packages/paste/deploy/util.py", line 55, in fix_call
ckan | val = callable(*args, **kw)
ckan | File "/srv/app/src/ckan/ckan/config/middleware/init.py", line 46, in make_app
ckan | val = callable(*args, **kw)
ckan | File "/srv/app/src/ckan/ckan/config/middleware/init.py", line 46, in make_app
ckan | load_environment(conf, app_conf)
ckan | File "/srv/app/src/ckan/ckan/config/environment.py", line 99, in load_environment
ckan | load_environment(conf, app_conf)
ckan | File "/srv/app/src/ckan/ckan/config/environment.py", line 99, in load_environment
ckan | p.load_all()
ckan | File "/srv/app/src/ckan/ckan/plugins/core.py", line 129, in load_all
ckan | p.load_all()
ckan | File "/srv/app/src/ckan/ckan/plugins/core.py", line 129, in load_all
ckan | unload_all()
ckan | File "/srv/app/src/ckan/ckan/plugins/core.py", line 182, in unload_all
ckan | unload_all()
ckan | File "/srv/app/src/ckan/ckan/plugins/core.py", line 182, in unload_all
ckan | unload(*reversed(_PLUGINS))
ckan | File "/srv/app/src/ckan/ckan/plugins/core.py", line 210, in unload
ckan | unload(*reversed(_PLUGINS))
ckan | File "/srv/app/src/ckan/ckan/plugins/core.py", line 210, in unload
ckan | plugins_update()
ckan | File "/srv/app/src/ckan/ckan/plugins/core.py", line 121, in plugins_update
ckan | plugins_update()
ckan | File "/srv/app/src/ckan/ckan/plugins/core.py", line 121, in plugins_update
ckan | environment.update_config()
ckan | File "/srv/app/src/ckan/ckan/config/environment.py", line 207, in update_config
ckan | environment.update_config()
ckan | File "/srv/app/src/ckan/ckan/config/environment.py", line 207, in update_config
ckan | search.check_solr_schema_version()
ckan | File "/srv/app/src/ckan/ckan/lib/search/init.py", line 306, in check_solr_schema_version
ckan | search.check_solr_schema_version()
ckan | File "/srv/app/src/ckan/ckan/lib/search/init.py", line 306, in check_solr_schema_version
ckan | % (version, ', '.join(SUPPORTED_SCHEMA_VERSIONS)))
ckan | ckan.lib.search.common.SearchError: SOLR schema version not supported: 2.8. Supported versions are [2.7]
ckan | % (version, ', '.join(SUPPORTED_SCHEMA_VERSIONS)))
ckan | ckan.lib.search.common.SearchError: SOLR schema version not supported: 2.8. Supported versions are [2.7]
ckan | OOPS ! failed loading app in worker 1 (pid 26) :( trying again...
ckan | DAMN ! worker 1 (pid: 26) died :( trying respawn ...

[ccancellieri]

I've got the same when I switched back to 2.8 (this repo does not have a full backport and change versions in only one ckan doker file is not enough).

Try looking at solr/Dockerfile and fix the version accordingly