Good Morning Jin:
There are two things I can think of to load this track.
Try running wigEncode on the track. This will convert it
from a bedGraph to a fixedStep type of wiggle. The resulting
.wig file may end up too large, it may not. It doesn't matter
how large the .wib file ends up being, it doesn't have to
go into the database. If the .wig file will load with hgLoadWiggle,
then your track will function.
Another way to go, although never tested, may not work, is to
separate your track into separate files by chromosome. Then
load each file into a set of tables with the chrom prefix
in front of the "mytrack" table name, e.g.:
hgLoadBed -bedGraph=4 hg18 chr1_mytrack chr1_mytrack.bed
hgLoadBed -bedGraph=4 hg18 chr2_mytrack chr2_mytrack.bed
... etc ...
That may work too.
--Hiram
Ma, Jin wrote:
> Dear browser colleagues,
>
> I was trying to load a wiggle track of more than 100 million records
> with the following command and the processed either got killed or got
> out-of-memory errors? Did I use the right command or that was just the
> resource limitation of my user profile in our system? Is there a better
> way of loading it? Thanks.
>
> hgLoadBed -bedGraph=4 hg18 mytrack mytrack.wig
>
> Jin
>
>
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