qa: 1506 (new) + archive (new) for derived metric rate() counter wrap…

… fix

This completes the work for
#1921

qa/1506

@@ -0,0 +1,46 @@
+#!/bin/sh
+# PCP QA Test No. 1506
+# derived metric issue with rate() and counters going
+# backwards ... see
+#	https://github.com/performancecopilot/pcp/issues/1921
+#
+# Copyright (c) 2024 Ken McDonell.  All Rights Reserved.
+#
+# This test uses the archives/buggy_archive that was attached
+# to the github issue, and this archive is:
+# Copyright (c) 2024 Oracle.  All Rights Reserved.
+#
+
+if [ $# -eq 0 ]
+then
+    seq=`basename $0`
+    echo "QA output created by $seq"
+else
+    # use $seq from caller, unless not set
+    [ -n "$seq" ] || seq=`basename $0`
+    echo "QA output created by `basename $0` $*"
+fi
+
+# get standard environment, filters and checks
+. ./common.product
+. ./common.filter
+. ./common.check
+
+$sudo rm -rf $tmp $tmp.* $seq.full
+
+_cleanup()
+{
+    cd $here
+    $sudo rm -rf $tmp $tmp.*
+}
+
+status=0	# success is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# real QA test starts here
+unset PCP_DERIVED_CONFIG
+
+pmval -z -t 5 -f 4 -a archives/buggy_archive disk.dev.util 2>&1
+
+# success, all done
+exit

qa/1506.out

@@ -0,0 +1,52 @@
+QA output created by 1506
+Note: timezone set to local timezone of host "jyoder-ol8-3" from archive
+
+metric:    disk.dev.util
+archive:   archives/buggy_archive
+host:      jyoder-ol8-3
+start:     Sat Aug 26 19:04:00 2023
+end:       Sat Aug 26 19:05:58 2023
+semantics: instantaneous value
+units:     none
+samples:   24
+interval:  5.00 sec
+19:04:00.955  No values available
+
+                              sda                   sdb 
+19:04:05.955               0.0800                0.0000 
+19:04:10.955               0.0800                0.0000 
+19:04:15.955               0.3400                0.0000 
+19:04:20.955               0.3600                0.0000 
+19:04:25.955                    ?                0.0000 
+19:04:30.955  No values available
+
+                              sda                   sdb 
+19:04:35.955                    ?                0.0000 
+19:04:40.955  No values available
+
+                              sda                   sdb 
+19:04:45.955                    ?                0.0000 
+19:04:50.955                    ?                0.0000 
+19:04:55.955  No values available
+
+                              sda                   sdb 
+19:05:00.955                    ?                0.0000 
+19:05:05.955  No values available
+
+                              sda                   sdb 
+19:05:10.955                    ?                0.0000 
+19:05:15.955                    ?                0.0000 
+19:05:20.955  No values available
+
+                              sda                   sdb 
+19:05:25.955                    ?                0.0000 
+19:05:30.955  No values available
+
+                              sda                   sdb 
+19:05:35.955                    ?                0.0000 
+19:05:40.955                    ?                0.0000 
+19:05:45.955  No values available
+
+                              sda                   sdb 
+19:05:50.955              40.0800                0.0000 
+19:05:55.955              94.4200                0.0000 

qa/group

@@ -1968,7 +1968,7 @@ x11
 1503 pcp pidstat ps python local
 1504 pmval archive archive_v3 local multi-archive
 1505 pmcheck local
-1506:reserved pmval derive local
+1506 pmval derive local
 1511 pmcd local pmda.sample
 1515 pmda.denki local valgrind
 1530 pmda.zfs local valgrind