Trace Showing Unexpected Truncation

[pid 35929]open("/data/db/hot_v1_757/1452179587-1452179585-2936321096680911853.pre-tsidx", O_RDWR|O_CREAT|O_EXCL|O_TRUNC, 0600) = 302
[pid 35929]write(302,"Splunk6\0\0\0\0\4\0\0\1D\0\0\0\226\0\0\0\1\0\0\0\4\0\0\0\4\0\0\0\5\0\0\0\1\0\0\0\1\0\0\0\4\0\0\0\4\0\0\0\5\0\0\0\1"..., 5033) = 5033
[pid 35929] close(302)                  = 0
[pid 35929]link("/data/db/hot_v1_757/1452179587-1452179585-2936321096680911853.pre-tsidx","/data/db/hot_v1_757/1452179587-1452179585-2936321096703952094.tsidx") = 0
[pid 35929]unlink("/data/newark/db/hot_v1_757/1452179587-1452179585-2936321096680911853.pre-tsidx") = 0
[pid 35922]stat("/data/newark/db/hot_v1_757/1452179587-1452179585-2936321096703952094.tsidx", {st_mode=S_IFREG|0600, st_size=0, ...}) = 0