Crawling errors of UCM by SES

Hello,

We have a problem of index files by SES from UCM.
In fact, we ‘check in’ several files in our UCM, in order to crawler these files by SES.
After that, we've checked the log file of UCM. We didn't find any trace of the update information. I think, that means the update file of UCM does not work in UCM.

In fact, we use the SES by our search engine. We know that every time a file is included or be modified in UCM, a logic connection of this file will be created in the directery
    mnt/ucm_shared/server/custom/SESCrawlerExport/datafeeds/ses