SOLR Data Import Handler : A command is still running...

[Doss <it...@gmail.com>]

We are doing hourly data import to our index, per day one or two requests
are getting failed with the message "A command is still running...".

1. Does it mean, the data import not happened for the last hour?
2. If you look at the "Full Dump Started" time has an older data, in the
below log all most 13 days, why is that so?

userinfoindex start - Wed Jan 22 05:12:01 IST 2020 {
"responseHeader":{     "status":0,     "QTime":0},   "initArgs":[
"defaults",[       "config","data-import.xml"]],
"command":"full-import",   "status":"busy",   "importResponse":"A command
is still running...",   "statusMessages":{     "Time
Elapsed":"298:1:59.986",     "Total Requests made to DataSource":"1",
"Total Rows Fetched":"17426",     "Total Documents Processed":"17425",
"Total Documents Skipped":"0",     "Full Dump Started":"2020-01-09
19:10:02"}}

Thanks,
Doss.