EDIT2: Using a 5.0.1 search head with a 5.0.1 back end works. Upgrading the SH to 5.0.2 for the search head broke subsearches.
original post below:
I'm testing my apps on a 5.0.2 search head before upgrading from 4.3.4. The indexers (4) are 4.3.4. All 64-bit Linux versions. I use appendcols for week-over-week and day-over-day comparisons in a lot of my dashboards.
With 5.0.2, appendcols is failing in odd ways. Some queries yield no results at all. Others yield duplicated results. The individual searches by themselves work perfectly fine. The "compound" searches work fine on a 4.3.4 search head.
This one showed 0 results in the timeline chart across the top of the page, but the table showed correct results for LastWeek and wrong (0) for Today. The search works fine from a 4.3.4 search head. Each individual search returns correct results on 5.0.2.
I have two searches, A and B, and they are accelerated.
When I run A or B separately, job inspector shows they are accesing their specific summaries to get the data I need. However, when I do search A and appencols search B, it only accesses the summaries of search A, making the part of appendcols to take too long.