readJournals = async (indexFilenames, journal) => {
  let i = 0;
  const result = [];

  for (const indexFilename of indexFilenames) {
    const index = getIndexName(indexFilename)
    const journalFilename = getJournalFilename(indexFilename, journal)
    await readJournalAsync(indexFilename, journal)
      .then(journalData => {
        log.info(`Read file index journal ${journalFilename}`)
        result.push({index, data: journalData.data})
      })
      .catch(err => {
        log.debug(err, `Failed to read index journal ${journalFilename}. Skip it`)
      })
  }

  return result
}
@param {string[]} indexFilenames
@param {string} journal
@returns {IndexJournal[]}