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Large M1 data disappears from MT4 between re-launches, but .hst files all present
Unfortunately my subject / headline is still valid!
Having resolved the data import issue with re-writing the date field using Sed, I still find that between launches MT4 "forgets" my imported 30 year M1 data.
This is what I did:
That said, I wonder why history centre says "Database: 0 / 2824274 records"?
Can anybody shed any light on this, or am I just going to have to keep re-importing every time I need to re-launch?
Help! :)
Large M1 data disappears from MT4 between re-launches, but .hst files all present
Unfortunately my subject / headline is still valid!
Having resolved the data import issue with re-writing the date field using Sed, I still find that between launches MT4 "forgets" my imported 30 year M1 data.
This is what I did:
Try this:
- close any charts you have open for the instrument you are trying to import
- disconnect from your Broker
- shut-down MT4
- find the history folder and delete the hst files for the instrument you are importing
- start MT4 - do not connect to your Broker
- import the data
- confirm that the hst file has been created by looking in the history folder -
.hst file not created by the aboveHooray! Its all there, on the chart and in history centre!
All periods now in place, and re-loading between re-launches.
I haven't a clue as to why that should have worked! Anyway I'm glad it has. Thank you so much for your help. Much appreciated. :)
jmb:
I haven't a clue as to why that should have worked! Anyway I'm glad it has. Thank you so much for your help. Much appreciated. :)
You are welcome. :-)
If you have a chart open and you are connected to your broker the hst files will be updated . . so you delete them, then a new tick arrives and the hst file gets updated. The only way I know to stop the hst files being created hen you don't want then to is to do all the importing, etc while disconnected from your Broker.
what "disconnect from your Broker" mean, how to do it ?
Thank's for your answer
I already try that, buy the probem is that if Iam disconnected from my broker, I can't download any data because there is nothing in the option->archives. That is why I asked a confirmation of the meaning of disconnect from your broker.
Anyway, I will do it without historical data, thank's
Thank's for your answer
I already try that, buy the probem is that if Iam disconnected from my broker, I can't download any data because there is nothing in the option->archives. That is why I asked a confirmation of the meaning of disconnect from your broker.
Anyway, I will do it without historical data, thank's
Try this:
Please do not forget to set the max values for bars in history and charts.
I followed the instructions above and still faced the issue, that the history was reduced to round about 65000 candles after I restarted MT4 even though I was not connected with the broker.
The reason: There is a max candles setting in the options for the history DB as well as chart size. With this setting in place, MT4 will overwrite your .hst files with the limited amount of candles.
Solution: set the max values to 2147483647 (MT4 reverts 999999999999 to the max number)