Error initialising medic-api - badmatch

Technical Support
1

Our CHT server failed and now we are trying to restore from a backup.

Restoring from a month-old backup works fine.

But when restoring from the most recent backup, the cht-api container has this error when starting:

Info: Starting CHT API
2024-01-24 04:10:37 INFO: Running server checks… 
Node Environment Options: 'undefined'
Node Version: 16.20.1 in development mode
CouchDB Version: 2.3.1
CouchDb Cluster ready
2024-01-24 04:10:37 INFO: Checks passed successfully 
2024-01-24 04:10:37 INFO: Extracting initial documents… 
2024-01-24 04:10:37 ERROR: Fatal error initialising medic-api 
2024-01-24 04:10:37 ERROR: {
  error: 'error',
  reason: "{badmatch,{'EXIT',{{badmatch,eof},\n" +
    '                   [{couch_file,read_raw_iolist_int,3,\n' +
    '                                [{file,"src/couch_file.erl"},{line,627}]},\n' +
    '                    {couch_file,handle_call,3,\n' +
    '                                [{file,"src/couch_file.erl"},{line,449}]},\n' +
    '                    {gen_server,try_handle_call,4,\n' +
    '                                [{file,"gen_server.erl"},{line,636}]},\n' +
    '                    {gen_server,handle_msg,6,\n' +
    '                                [{file,"gen_server.erl"},{line,665}]},\n' +
    '                    {proc_lib,init_p_do_apply,3,\n' +
    '                              [{file,"proc_lib.erl"},{line,247}]}]}}}',
  status: 500,
  name: 'error',
  message: "{badmatch,{'EXIT',{{badmatch,eof},\n" +
    '                   [{couch_file,read_raw_iolist_int,3,\n' +
    '                                [{file,"src/couch_file.erl"},{line,627}]},\n' +
    '                    {couch_file,handle_call,3,\n' +
    '                                [{file,"src/couch_file.erl"},{line,449}]},\n' +
    '                    {gen_server,try_handle_call,4,\n' +
    '                                [{file,"gen_server.erl"},{line,636}]},\n' +
    '                    {gen_server,handle_msg,6,\n' +
    '                                [{file,"gen_server.erl"},{line,665}]},\n' +
    '                    {proc_lib,init_p_do_apply,3,\n' +
    '                              [{file,"proc_lib.erl"},{line,247}]}]}}}',
  stack: 'Error\n' +
    '    at Object.generateErrorFromResponse (/api/node_modules/pouchdb-errors/lib/index.js:104:18)\n' +
    '    at /api/node_modules/pouchdb-adapter-http/lib/index.js:254:33\n' +
    '    at processTicksAndRejections (node:internal/process/task_queues:96:5)',
  docId: 'settings'
}

Any help would be greatly appreciated!

2

Hi @jschwab77

It looks like your backup is somehow corrupted, CouchDb has trouble reading it. Unfortunately I don’t know how to guide you further. Have you tried reapplying the same backup?

3

I’ve tried restoring from the backup several times but got the same error.

Is there a way I could investigate and possibly repair this ‘settings’ doc?

4

I don’t think it’s the settings doc that you’re having issues here with. I don’t have an avenue to investigate this. Can you perhaps try a different backup? Not the most recent, but the one before?

5

I’d also be interested in knowing more about your server failure and the reason you need to restore from backup, if that’s something you’re willing to share. Thanks!