sql/colexec: BenchmarkAggregator failed

[cockroach-teamcity]

(sql/colexec).BenchmarkAggregator failed on master@1a05ba6475f1b8d1f1de0c609a2a77e420c4c429:

Fatal error:

panic: interface conversion: interface is nil, not colexec.resetter

Stack:

goroutine 813 [running]:
github.com/cockroachdb/cockroach/pkg/sql/colexec.(*mergeJoinBase).completeBufferedGroup(0xc00042dc38, 0x26aa300, 0xc000052120, 0xc00042dc60, 0x26de240, 0xc000368b40, 0x0, 0x26a0014, 0xc000052120, 0x26de240, ...)
	/go/src/github.com/cockroachdb/cockroach/pkg/sql/colexec/mergejoiner.go:508 +0xbf
github.com/cockroachdb/cockroach/pkg/sql/colexec.(*mergeJoinBase).finishProbe(0xc00042dc38, 0x26aa300, 0xc000052120)
	/go/src/github.com/cockroachdb/cockroach/pkg/sql/colexec/mergejoiner.go:569 +0x70
github.com/cockroachdb/cockroach/pkg/sql/colexec.(*mergeJoinInnerOp).Next(0xc00042dc38, 0x26aa300, 0xc000052120, 0x20, 0x26de240)
	/go/src/github.com/cockroachdb/cockroach/pkg/sql/colexec/mergejoiner_inner.eg.go:26042 +0x243
github.com/cockroachdb/cockroach/pkg/sql/colexec.BenchmarkMergeJoiner.func3(0xc000304fc0)
	/go/src/github.com/cockroachdb/cockroach/pkg/sql/colexec/mergejoiner_test.go:2197 +0x4ea
testing.(*B).runN(0xc000304fc0, 0x1)
	/usr/local/go/src/testing/benchmark.go:190 +0xcc
testing.(*B).run1.func1(0xc000304fc0)
	/usr/local/go/src/testing/benchmark.go:230 +0x64
created by testing.(*B).run1
	/usr/local/go/src/testing/benchmark.go:223 +0x7d

Log preceding fatal error

BenchmarkExternalSort/rows=320/cols=1/spilled=true-8                                                	       1	    206726 ns/op	  12.38 MB/s
BenchmarkExternalSort/rows=320/cols=2/spilled=false-8                                               	       1	     86122 ns/op	  59.45 MB/s
BenchmarkExternalSort/rows=320/cols=2/spilled=true-8                                                	       1	    280183 ns/op	  18.27 MB/s
BenchmarkExternalSort/rows=320/cols=4/spilled=false-8                                               	       1	    108344 ns/op	  94.51 MB/s
BenchmarkExternalSort/rows=320/cols=4/spilled=true-8                                                	       1	    338909 ns/op	  30.21 MB/s
BenchmarkExternalSort/rows=5120/cols=1/spilled=false-8                                              	       1	    247772 ns/op	 165.31 MB/s
BenchmarkExternalSort/rows=5120/cols=1/spilled=true-8                                               	       1	   1050531 ns/op	  38.99 MB/s
BenchmarkExternalSort/rows=5120/cols=2/spilled=false-8                                              	       1	    599713 ns/op	 136.60 MB/s
BenchmarkExternalSort/rows=5120/cols=2/spilled=true-8                                               	       1	   1901229 ns/op	  43.09 MB/s
BenchmarkExternalSort/rows=5120/cols=4/spilled=false-8                                              	       1	    856976 ns/op	 191.18 MB/s
BenchmarkExternalSort/rows=5120/cols=4/spilled=true-8                                               	       1	   2694946 ns/op	  60.80 MB/s
BenchmarkHashJoiner/nulls=false/fullOuter=false/distinct=true/rows=40-8                             	       1	    125158 ns/op	  20.45 MB/s
BenchmarkHashJoiner/nulls=false/fullOuter=false/distinct=true/rows=5120-8                           	       1	    640045 ns/op	 511.96 MB/s
BenchmarkHashJoiner/nulls=false/fullOuter=false/distinct=true/rows=81920-8                          	       1	  14025812 ns/op	 373.80 MB/s
BenchmarkHashJoiner/nulls=false/fullOuter=false/distinct=false/rows=40-8                            	       1	    110642 ns/op	  23.14 MB/s
BenchmarkHashJoiner/nulls=false/fullOuter=false/distinct=false/rows=5120-8                          	       1	    647994 ns/op	 505.68 MB/s
BenchmarkHashJoiner/nulls=false/fullOuter=false/distinct=false/rows=81920-8                         	       1	  13145196 ns/op	 398.84 MB/s
BenchmarkHashJoiner/nulls=false/fullOuter=true/distinct=true/rows=40-8                              	       1	    106692 ns/op	  23.99 MB/s
BenchmarkHashJoiner/nulls=false/fullOuter=true/distinct=true/rows=5120-8                            	       1	    721686 ns/op	 454.05 MB/s
BenchmarkHashJoiner/nulls=false/fullOuter=true/distinct=true/rows=81920-8                           	       1	  11960634 ns/op	 438.34 MB/s
BenchmarkHashJoiner/nulls=false/fullOuter=true/distinct=false/rows=40-8                             	       1	    102748 ns/op	  24.92 MB/s
BenchmarkHashJoiner/nulls=false/fullOuter=true/distinct=false/rows=5120-8                           	       1	    681563 ns/op	 480.78 MB/s
BenchmarkHashJoiner/nulls=false/fullOuter=true/distinct=false/rows=81920-8                          	       1	  12662851 ns/op	 414.04 MB/s
BenchmarkHashJoiner/nulls=true/fullOuter=false/distinct=true/rows=40-8                              	       1	     97191 ns/op	  26.34 MB/s
BenchmarkHashJoiner/nulls=true/fullOuter=false/distinct=true/rows=5120-8                            	       1	    907283 ns/op	 361.17 MB/s
BenchmarkHashJoiner/nulls=true/fullOuter=false/distinct=true/rows=81920-8                           	       1	  14602084 ns/op	 359.05 MB/s
BenchmarkHashJoiner/nulls=true/fullOuter=false/distinct=false/rows=40-8                             	       1	    112627 ns/op	  22.73 MB/s
BenchmarkHashJoiner/nulls=true/fullOuter=false/distinct=false/rows=5120-8                           	       1	    893657 ns/op	 366.67 MB/s
BenchmarkHashJoiner/nulls=true/fullOuter=false/distinct=false/rows=81920-8                          	       1	  15031149 ns/op	 348.80 MB/s
BenchmarkHashJoiner/nulls=true/fullOuter=true/distinct=true/rows=40-8                               	       1	    116471 ns/op	  21.98 MB/s
BenchmarkHashJoiner/nulls=true/fullOuter=true/distinct=true/rows=5120-8                             	       1	   1025108 ns/op	 319.65 MB/s
BenchmarkHashJoiner/nulls=true/fullOuter=true/distinct=true/rows=81920-8                            	       1	  15284330 ns/op	 343.02 MB/s
BenchmarkHashJoiner/nulls=true/fullOuter=true/distinct=false/rows=40-8                              	       1	    118683 ns/op	  21.57 MB/s
BenchmarkHashJoiner/nulls=true/fullOuter=true/distinct=false/rows=5120-8                            	       1	    907266 ns/op	 361.17 MB/s
BenchmarkHashJoiner/nulls=true/fullOuter=true/distinct=false/rows=81920-8                           	       1	  15688741 ns/op	 334.18 MB/s
BenchmarkLikeOps/selPrefixBytesBytesConstOp-8                                                       	       1	      3694 ns/op	 346.51 MB/s
BenchmarkLikeOps/selSuffixBytesBytesConstOp-8                                                       	       1	      3765 ns/op	 339.97 MB/s
BenchmarkLikeOps/selRegexpBytesBytesConstOp-8                                                       	       1	     35773 ns/op	  35.78 MB/s
BenchmarkColumnarizeMaterialize-8                                                                   	       1	   6476993 ns/op	  24.70 MB/s
BenchmarkMergeJoiner/rows=20-8                                                                      	       1	     93241 ns/op	  13.73 MB/s
BenchmarkMergeJoiner/rows=80-8                                                                      	       1	     64935 ns/op	  78.85 MB/s
BenchmarkMergeJoiner/rows=320-8                                                                     	       1	    103033 ns/op	 198.77 MB/s
BenchmarkMergeJoiner/rows=20480-8                                                                   	       1	   3242417 ns/op	 404.24 MB/s
BenchmarkMergeJoiner/oneSideRepeat-rows=20-8                                                        	       1	     54462 ns/op	  23.50 MB/s
BenchmarkMergeJoiner/oneSideRepeat-rows=80-8                                                        	       1	     69627 ns/op	  73.53 MB/s
BenchmarkMergeJoiner/oneSideRepeat-rows=320-8                                                       	       1	    105315 ns/op	 194.46 MB/s
BenchmarkMergeJoiner/oneSideRepeat-rows=20480-8                                                     	       1	   3286608 ns/op	 398.81 MB/s
BenchmarkMergeJoiner/bothSidesRepeat-rows=20-8                                                      	       1	     74781 ns/op	  17.12 MB/s
BenchmarkMergeJoiner/bothSidesRepeat-rows=80-8                                                      	       1	     79251 ns/op	  64.60 MB/s
BenchmarkMergeJoiner/bothSidesRepeat-rows=320-8                                                     	       1	    260585 ns/op	  78.59 MB/s

More

Parameters:

• GOFLAGS=-json

make stressrace TESTS=BenchmarkAggregator PKG=./pkg/sql/colexec TESTTIMEOUT=5m STRESSFLAGS='-timeout 5m' 2>&1

See this test on roachdash
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