Cannot call method 'drain' of undefined

[pnorman]

Version 4c6fa1c on Ubuntu 14.04

[Core] File roads.mss changed on disk
[Core] File roads.mss changed on disk
[Core] File roads.mss changed on disk
[Core] File roads.mss changed on disk
[Core] File roads.mss changed on disk
[httpserver] /repo/poll/ 200
[Core] Loading project from /home/pnorman/osm/openstreetmap-carto/repo/project.yaml
[Core] Loading project from /home/pnorman/osm/openstreetmap-carto/repo/project.yaml
[Core] Loading project from /home/pnorman/osm/openstreetmap-carto/repo/project.yaml
[Core] Loading project from /home/pnorman/osm/openstreetmap-carto/repo/project.yaml
[Core] Loading project from /home/pnorman/osm/openstreetmap-carto/repo/project.yaml
[Local Config] Patched config from /home/pnorman/osm/openstreetmap-carto/repo/localconfig.json

/home/pnorman/osm/kosmtik-3/src/back/ProjectServer.js:270
        self.mapPool.drain(function() {
                     ^
TypeError: Cannot call method 'drain' of undefined
    at Array.0 (/home/pnorman/osm/kosmtik-3/src/back/ProjectServer.js:270:22)
    at null.<anonymous> (/home/pnorman/osm/kosmtik-3/src/back/StateBase.js:27:43)
    at null.<anonymous> (/home/pnorman/osm/kosmtik-3/src/back/StateBase.js:37:13)
    at DataSourceLoader.patchMML (/home/pnorman/osm/kosmtik-3/src/plugins/datasource-loader/index.js:36:15)
    at null.<anonymous> (/home/pnorman/osm/kosmtik-3/src/back/StateBase.js:35:74)
    at done (/home/pnorman/osm/kosmtik-3/src/plugins/local-config/index.js:14:23)
    at /home/pnorman/osm/kosmtik-3/src/plugins/local-config/index.js:52:13
    at /home/pnorman/osm/kosmtik-3/node_modules/npm/node_modules/graceful-fs/graceful-fs.js:76:16
    at fs.js:268:14
    at /home/pnorman/osm/kosmtik-3/node_modules/npm/node_modules/graceful-fs/graceful-fs.js:42:10

[yohanboniface]

Which NodeJS version? Any project?

[pnorman]

osm-carto, nodejs v0.10.25 (Ubuntu 14.04 LTS)

[yohanboniface]

Do you have the error with all projects or only this one? Are you still on mapnik 3.4.7?

[pnorman]

Do you have the error with all projects or only this one?

It's intermittent, so hard to say.

Are you still on mapnik 3.4.7?

Yes

[JesseCrocker]

I've been seeing this error when a project file fails to load due to invalid yaml, then i change the file to make it valid, and it auto-reloads again.

[pnorman]

I've been seeing this error when a project file fails to load due to invalid yaml, then i change the file to make it valid, and it auto-reloads again.

If Kosmtik reloads the project file while it's being saved, it might get an invalid YAML file. If you truncate the file at a random place you'll normally get valid YAML, but there are some quoted strings that might result in something invalid.

[pnorman]

Doesn't look like it's related to YAML. I got this when I had invalid MSS, fixed it, then hit reload on the web interface. Autoreload was off.

[pnorman]

I've been seeing this error when a project file fails to load due to invalid yaml, then i change the file to make it valid, and it auto-reloads again.

This happens with both MSS and YAML. The general sequence is to have a syntax error (e.g. missing }), start Kosmtik, then fix the error. When it auto-reloads it encounters this.