gorse-in-one启动时候还有个panic

[ppyupp]

只在启动时候出现, 不过捕获到了... 就是看着难受 -_-!
{
"level":"error",
"ts":1656313095.142161,
"caller":"base/util.go:61",
"msg":"panic recovered",
"panic":"runtime error: index out of range [-1]",
"stacktrace":"github.com/zhenghaoz/gorse/base.CheckPanic
/Users/ak47/dec/gorse-master/base/util.go:61
runtime.gopanic
/usr/local/go/src/runtime/panic.go:838
runtime.goPanicIndex
/usr/local/go/src/runtime/panic.go:89
github.com/zhenghaoz/gorse/base/search.(*IVF).Build.func1
/Users/ak47/dec/gorse-master/base/search/ivf.go:205
github.com/zhenghaoz/gorse/base/parallel.Parallel
/Users/ak47/dec/gorse-master/base/parallel/parallel.go:31
github.com/zhenghaoz/gorse/base/search.(*IVF).Build
/Users/ak47/dec/gorse-master/base/search/ivf.go:192
github.com/zhenghaoz/gorse/base/search.(*IVFBuilder).Build
/Users/ak47/dec/gorse-master/base/search/ivf.go:274
github.com/zhenghaoz/gorse/master.(*Master).findItemNeighborsIVF
/Users/ak47/dec/gorse-master/master/tasks.go:386
github.com/zhenghaoz/gorse/master.(*Master).runFindItemNeighborsTask
/Users/ak47/dec/gorse-master/master/tasks.go:254
github.com/zhenghaoz/gorse/master.(*Master).runRankingRelatedTasks
/Users/ak47/dec/gorse-master/master/tasks.go:857
github.com/zhenghaoz/gorse/master.(*Master).RunPrivilegedTasksLoop
/Users/ak47/dec/gorse-master/master/master.go:277"
}

[zhenghaoz]

这个是数据集为空时候会出现的BUG

[Issues-translate-bot]

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---

This is a bug that occurs when the dataset is empty

[zhenghaoz]

这个BUG的深层次原因是计算距离的时候出现了NaN，复现的话需要依赖数据

[Issues-translate-bot]

Bot detected the issue body's language is not English, translate it automatically. 👯👭🏻🧑‍🤝‍🧑👫🧑🏿‍🤝‍🧑🏻👩🏾‍🤝‍👨🏿👬🏿

---

The deep-seated reason for this bug is that NaN appears when calculating the distance.

[myxtype]

同样遇到这样的问题

{"level":"info","ts":1664419110.760423,"caller":"master/tasks.go:252","msg":"start searching neighbors of items","n_cache":100}
panic: runtime error: index out of range [-1]

goroutine 152 [running]:
github.com/zhenghaoz/gorse/base/search.(*IVF).Build.func1(0xc000064400?, 0x0)
	/go/gorse/base/search/ivf.go:222 +0x38e
github.com/zhenghaoz/gorse/base/parallel.Parallel(0x2, 0xc0004d8360?, 0xc012e9e050)
	/go/gorse/base/parallel/parallel.go:39 +0xf7
github.com/zhenghaoz/gorse/base/search.(*IVF).Build(0xc00c7be180)
	/go/gorse/base/search/ivf.go:209 +0x525
github.com/zhenghaoz/gorse/base/search.(*IVFBuilder).Build(0xc012e9e000, 0x3f4ccccd, 0x3, 0x64?, 0xc000324070)
	/go/gorse/base/search/ivf.go:294 +0x175
github.com/zhenghaoz/gorse/master.(*Master).findUserNeighborsIVF(0xc0001b8c00, 0xc012eacd80, {0xc00c87e700, 0x1, 0x1}, {0xc00acfe000, 0x4fce3, 0x4fce3}, 0xc000102240, 0xc0001577e0)
	/go/gorse/master/tasks.go:752 +0x470
github.com/zhenghaoz/gorse/master.(*FindUserNeighborsTask).run(0xc0095ee510, 0x167b965?)
	/go/gorse/master/tasks.go:625 +0x606
github.com/zhenghaoz/gorse/master.(*Master).RunPrivilegedTasksLoop.func2({0x1abb000, 0xc0095ee510})
	/go/gorse/master/master.go:301 +0x18c
created by github.com/zhenghaoz/gorse/master.(*Master).RunPrivilegedTasksLoop
	/go/gorse/master/master.go:297 +0x85c

[zhenghaoz]

同样遇到这样的问题

{"level":"info","ts":1664419110.760423,"caller":"master/tasks.go:252","msg":"start searching neighbors of items","n_cache":100}
panic: runtime error: index out of range [-1]

goroutine 152 [running]:
github.com/zhenghaoz/gorse/base/search.(*IVF).Build.func1(0xc000064400?, 0x0)
	/go/gorse/base/search/ivf.go:222 +0x38e
github.com/zhenghaoz/gorse/base/parallel.Parallel(0x2, 0xc0004d8360?, 0xc012e9e050)
	/go/gorse/base/parallel/parallel.go:39 +0xf7
github.com/zhenghaoz/gorse/base/search.(*IVF).Build(0xc00c7be180)
	/go/gorse/base/search/ivf.go:209 +0x525
github.com/zhenghaoz/gorse/base/search.(*IVFBuilder).Build(0xc012e9e000, 0x3f4ccccd, 0x3, 0x64?, 0xc000324070)
	/go/gorse/base/search/ivf.go:294 +0x175
github.com/zhenghaoz/gorse/master.(*Master).findUserNeighborsIVF(0xc0001b8c00, 0xc012eacd80, {0xc00c87e700, 0x1, 0x1}, {0xc00acfe000, 0x4fce3, 0x4fce3}, 0xc000102240, 0xc0001577e0)
	/go/gorse/master/tasks.go:752 +0x470
github.com/zhenghaoz/gorse/master.(*FindUserNeighborsTask).run(0xc0095ee510, 0x167b965?)
	/go/gorse/master/tasks.go:625 +0x606
github.com/zhenghaoz/gorse/master.(*Master).RunPrivilegedTasksLoop.func2({0x1abb000, 0xc0095ee510})
	/go/gorse/master/master.go:301 +0x18c
created by github.com/zhenghaoz/gorse/master.(*Master).RunPrivilegedTasksLoop
	/go/gorse/master/master.go:297 +0x85c

如果你愿意共享下数据的话就容易修复了，这个bug需要特定数据触发😂