19192: Fix deadlock in lookupnode.
[arvados.git] / sdk / go / arvados / fs_site_test.go
index 9d763118004c53e917572364b7d9b71ca2ae667b..3abe2b457f702b510a46f97ccf528f35f337eb92 100644 (file)
@@ -10,6 +10,8 @@ import (
        "io/ioutil"
        "net/http"
        "os"
+       "strings"
+       "sync"
        "syscall"
        "time"
 
@@ -135,18 +137,18 @@ func (s *SiteFSSuite) TestByUUIDAndPDH(c *check.C) {
        c.Check(names, check.DeepEquals, []string{"baz"})
 
        _, err = s.fs.OpenFile("/by_id/"+fixtureNonexistentCollection, os.O_RDWR|os.O_CREATE, 0755)
-       c.Check(err, check.Equals, ErrInvalidArgument)
+       c.Check(err, ErrorIs, ErrInvalidOperation)
        err = s.fs.Rename("/by_id/"+fixtureFooCollection, "/by_id/beep")
-       c.Check(err, check.Equals, ErrInvalidArgument)
+       c.Check(err, ErrorIs, ErrInvalidOperation)
        err = s.fs.Rename("/by_id/"+fixtureFooCollection+"/foo", "/by_id/beep")
-       c.Check(err, check.Equals, ErrInvalidArgument)
+       c.Check(err, ErrorIs, ErrInvalidOperation)
        _, err = s.fs.Stat("/by_id/beep")
        c.Check(err, check.Equals, os.ErrNotExist)
        err = s.fs.Rename("/by_id/"+fixtureFooCollection+"/foo", "/by_id/"+fixtureFooCollection+"/bar")
        c.Check(err, check.IsNil)
 
        err = s.fs.Rename("/by_id", "/beep")
-       c.Check(err, check.Equals, ErrInvalidArgument)
+       c.Check(err, ErrorIs, ErrInvalidOperation)
 }
 
 // Copy subtree from OS src to dst path inside fs. If src is a
@@ -211,9 +213,11 @@ func copyFromOS(fs FileSystem, dst, src string) error {
 
 func (s *SiteFSSuite) TestSnapshotSplice(c *check.C) {
        s.fs.MountProject("home", "")
+       thisfile, err := ioutil.ReadFile("fs_site_test.go")
+       c.Assert(err, check.IsNil)
 
        var src1 Collection
-       err := s.client.RequestAndDecode(&src1, "POST", "arvados/v1/collections", nil, map[string]interface{}{
+       err = s.client.RequestAndDecode(&src1, "POST", "arvados/v1/collections", nil, map[string]interface{}{
                "collection": map[string]string{
                        "name":       "TestSnapshotSplice src1",
                        "owner_uuid": fixtureAProjectUUID,
@@ -251,39 +255,235 @@ func (s *SiteFSSuite) TestSnapshotSplice(c *check.C) {
        defer s.client.RequestAndDecode(nil, "DELETE", "arvados/v1/collections/"+dst.UUID, nil, nil)
        err = s.fs.Sync()
        c.Assert(err, check.IsNil)
-       err = copyFromOS(s.fs, "/home/A Project/TestSnapshotSplice dst", "..") // arvados.git/sdk/go
+
+       dstPath := "/home/A Project/TestSnapshotSplice dst"
+       err = copyFromOS(s.fs, dstPath, "..") // arvados.git/sdk/go
        c.Assert(err, check.IsNil)
 
+       // Snapshot directory
        snap1, err := Snapshot(s.fs, "/home/A Project/TestSnapshotSplice src1/ctxlog")
-       c.Assert(err, check.IsNil)
-       err = Splice(s.fs, "/home/A Project/TestSnapshotSplice dst/ctxlog-copy", snap1)
-       c.Assert(err, check.IsNil)
-       err = Splice(s.fs, "/home/A Project/TestSnapshotSplice dst/ctxlog-copy2", snap1)
-       c.Assert(err, check.IsNil)
+       c.Check(err, check.IsNil)
+       // Attach same snapshot twice, at paths that didn't exist before
+       err = Splice(s.fs, dstPath+"/ctxlog-copy", snap1)
+       c.Check(err, check.IsNil)
+       err = Splice(s.fs, dstPath+"/ctxlog-copy2", snap1)
+       c.Check(err, check.IsNil)
+       // Splicing a snapshot twice results in two independent copies
+       err = s.fs.Rename(dstPath+"/ctxlog-copy2/log.go", dstPath+"/ctxlog-copy/log2.go")
+       c.Check(err, check.IsNil)
+       _, err = s.fs.Open(dstPath + "/ctxlog-copy2/log.go")
+       c.Check(err, check.Equals, os.ErrNotExist)
+       f, err := s.fs.Open(dstPath + "/ctxlog-copy/log.go")
+       if c.Check(err, check.IsNil) {
+               buf, err := ioutil.ReadAll(f)
+               c.Check(err, check.IsNil)
+               c.Check(string(buf), check.Not(check.Equals), "")
+               f.Close()
+       }
 
-       snap2, err := Snapshot(s.fs, "/home/A Project/TestSnapshotSplice dst/ctxlog-copy")
-       c.Assert(err, check.IsNil)
-       err = Splice(s.fs, "/home/A Project/TestSnapshotSplice dst/ctxlog-copy-copy", snap2)
-       c.Assert(err, check.IsNil)
+       // Snapshot regular file
+       snapFile, err := Snapshot(s.fs, "/home/A Project/TestSnapshotSplice src1/arvados/fs_site_test.go")
+       c.Check(err, check.IsNil)
+       // Replace dir with file
+       err = Splice(s.fs, dstPath+"/ctxlog-copy2", snapFile)
+       c.Check(err, check.IsNil)
+       if f, err := s.fs.Open(dstPath + "/ctxlog-copy2"); c.Check(err, check.IsNil) {
+               buf, err := ioutil.ReadAll(f)
+               c.Check(err, check.IsNil)
+               c.Check(string(buf), check.Equals, string(thisfile))
+       }
 
-       snapDst, err := Snapshot(s.fs, "/home/A Project/TestSnapshotSplice dst")
-       c.Assert(err, check.IsNil)
-       err = Splice(s.fs, "/home/A Project/TestSnapshotSplice dst", snapDst)
-       c.Assert(err, check.IsNil)
-       err = Splice(s.fs, "/home/A Project/TestSnapshotSplice dst/copy1", snapDst)
-       c.Assert(err, check.IsNil)
-       err = Splice(s.fs, "/home/A Project/TestSnapshotSplice dst/copy2", snapDst)
-       c.Assert(err, check.IsNil)
-       err = s.fs.RemoveAll("/home/A Project/TestSnapshotSplice dst/arvados")
-       c.Assert(err, check.IsNil)
-       _, err = s.fs.Open("/home/A Project/TestSnapshotSplice dst/arvados/fs_site_test.go")
-       c.Assert(err, check.Equals, os.ErrNotExist)
-       f, err := s.fs.Open("/home/A Project/TestSnapshotSplice dst/copy2/arvados/fs_site_test.go")
-       c.Assert(err, check.IsNil)
-       defer f.Close()
-       buf, err := ioutil.ReadAll(f)
+       // Cannot splice a file onto a collection root; cannot splice
+       // anything to a target outside a collection.
+       for _, badpath := range []string{
+               dstPath + "/",
+               dstPath,
+               "/home/A Project/newnodename/",
+               "/home/A Project/newnodename",
+               "/home/A Project/",
+               "/home/A Project",
+               "/home/newnodename/",
+               "/home/newnodename",
+               "/home/",
+               "/home",
+               "/newnodename/",
+               "/newnodename",
+               "/",
+       } {
+               err = Splice(s.fs, badpath, snapFile)
+               c.Check(err, check.NotNil)
+               if strings.Contains(badpath, "newnodename") && strings.HasSuffix(badpath, "/") {
+                       c.Check(err, ErrorIs, os.ErrNotExist, check.Commentf("badpath %q", badpath))
+               } else {
+                       c.Check(err, ErrorIs, ErrInvalidOperation, check.Commentf("badpath %q", badpath))
+               }
+               if strings.TrimSuffix(badpath, "/") == dstPath {
+                       c.Check(err, check.ErrorMatches, `cannot use Splice to attach a file at top level of \*arvados.collectionFileSystem: invalid operation`, check.Commentf("badpath: %q", badpath))
+                       continue
+               }
+
+               err = Splice(s.fs, badpath, snap1)
+               if strings.Contains(badpath, "newnodename") && strings.HasSuffix(badpath, "/") {
+                       c.Check(err, ErrorIs, os.ErrNotExist, check.Commentf("badpath %q", badpath))
+               } else {
+                       c.Check(err, ErrorIs, ErrInvalidOperation, check.Commentf("badpath %q", badpath))
+               }
+       }
+
+       // Destination's parent must already exist
+       for _, badpath := range []string{
+               dstPath + "/newdirname/",
+               dstPath + "/newdirname/foobar",
+               "/foo/bar",
+       } {
+               err = Splice(s.fs, badpath, snap1)
+               c.Check(err, ErrorIs, os.ErrNotExist, check.Commentf("badpath %s", badpath))
+               err = Splice(s.fs, badpath, snapFile)
+               c.Check(err, ErrorIs, os.ErrNotExist, check.Commentf("badpath %s", badpath))
+       }
+
+       snap2, err := Snapshot(s.fs, dstPath+"/ctxlog-copy")
+       if c.Check(err, check.IsNil) {
+               err = Splice(s.fs, dstPath+"/ctxlog-copy-copy", snap2)
+               c.Check(err, check.IsNil)
+       }
+
+       // Snapshot entire collection, splice into same collection at
+       // a new path, remove file from original location, verify
+       // spliced content survives
+       snapDst, err := Snapshot(s.fs, dstPath+"")
        c.Check(err, check.IsNil)
-       c.Check(string(buf), check.Not(check.Equals), "")
-       err = f.Close()
-       c.Assert(err, check.IsNil)
+       err = Splice(s.fs, dstPath+"", snapDst)
+       c.Check(err, check.IsNil)
+       err = Splice(s.fs, dstPath+"/copy1", snapDst)
+       c.Check(err, check.IsNil)
+       err = Splice(s.fs, dstPath+"/copy2", snapDst)
+       c.Check(err, check.IsNil)
+       err = s.fs.RemoveAll(dstPath + "/arvados/fs_site_test.go")
+       c.Check(err, check.IsNil)
+       err = s.fs.RemoveAll(dstPath + "/arvados")
+       c.Check(err, check.IsNil)
+       _, err = s.fs.Open(dstPath + "/arvados/fs_site_test.go")
+       c.Check(err, check.Equals, os.ErrNotExist)
+       f, err = s.fs.Open(dstPath + "/copy2/arvados/fs_site_test.go")
+       if c.Check(err, check.IsNil) {
+               defer f.Close()
+               buf, err := ioutil.ReadAll(f)
+               c.Check(err, check.IsNil)
+               c.Check(string(buf), check.Equals, string(thisfile))
+       }
+}
+
+func (s *SiteFSSuite) TestLocks(c *check.C) {
+       DebugLocksPanicMode = false
+       done := make(chan struct{})
+       defer close(done)
+       ticker := time.NewTicker(2 * time.Second)
+       go func() {
+               for {
+                       timeout := time.AfterFunc(5*time.Second, func() {
+                               // c.FailNow() doesn't break deadlock, but this sure does
+                               panic("timed out -- deadlock?")
+                       })
+                       select {
+                       case <-done:
+                               timeout.Stop()
+                               return
+                       case <-ticker.C:
+                               c.Logf("MemorySize == %d", s.fs.MemorySize())
+                       }
+                       timeout.Stop()
+               }
+       }()
+       ncolls := 5
+       ndirs := 3
+       nfiles := 5
+       projects := make([]Group, 5)
+       for pnum := range projects {
+               c.Logf("make project %d", pnum)
+               err := s.client.RequestAndDecode(&projects[pnum], "POST", "arvados/v1/groups", nil, map[string]interface{}{
+                       "group": map[string]string{
+                               "name":        fmt.Sprintf("TestLocks project %d", pnum),
+                               "owner_uuid":  fixtureAProjectUUID,
+                               "group_class": "project",
+                       },
+                       "ensure_unique_name": true,
+               })
+               c.Assert(err, check.IsNil)
+               for cnum := 0; cnum < ncolls; cnum++ {
+                       c.Logf("make project %d collection %d", pnum, cnum)
+                       var coll Collection
+                       err = s.client.RequestAndDecode(&coll, "POST", "arvados/v1/collections", nil, map[string]interface{}{
+                               "collection": map[string]string{
+                                       "name":       fmt.Sprintf("TestLocks collection %d", cnum),
+                                       "owner_uuid": projects[pnum].UUID,
+                               },
+                       })
+                       c.Assert(err, check.IsNil)
+                       for d1num := 0; d1num < ndirs; d1num++ {
+                               s.fs.Mkdir(fmt.Sprintf("/by_id/%s/dir1-%d", coll.UUID, d1num), 0777)
+                               for d2num := 0; d2num < ndirs; d2num++ {
+                                       s.fs.Mkdir(fmt.Sprintf("/by_id/%s/dir1-%d/dir2-%d", coll.UUID, d1num, d2num), 0777)
+                                       for fnum := 0; fnum < nfiles; fnum++ {
+                                               f, err := s.fs.OpenFile(fmt.Sprintf("/by_id/%s/dir1-%d/dir2-%d/file-%d", coll.UUID, d1num, d2num, fnum), os.O_CREATE|os.O_RDWR, 0755)
+                                               c.Assert(err, check.IsNil)
+                                               f.Close()
+                                               f, err = s.fs.OpenFile(fmt.Sprintf("/by_id/%s/dir1-%d/file-%d", coll.UUID, d1num, fnum), os.O_CREATE|os.O_RDWR, 0755)
+                                               c.Assert(err, check.IsNil)
+                                               f.Close()
+                                       }
+                               }
+                       }
+               }
+       }
+       c.Log("sync")
+       s.fs.Sync()
+       var wg sync.WaitGroup
+       for n := 0; n < 100; n++ {
+               wg.Add(1)
+               go func() {
+                       defer wg.Done()
+                       for pnum, project := range projects {
+                               c.Logf("read project %d", pnum)
+                               if pnum%2 == 0 {
+                                       f, err := s.fs.Open(fmt.Sprintf("/by_id/%s", project.UUID))
+                                       c.Assert(err, check.IsNil)
+                                       f.Readdir(-1)
+                                       f.Close()
+                               }
+                               for cnum := 0; cnum < ncolls; cnum++ {
+                                       c.Logf("read project %d collection %d", pnum, cnum)
+                                       if pnum%2 == 0 {
+                                               f, err := s.fs.Open(fmt.Sprintf("/by_id/%s/TestLocks collection %d", project.UUID, cnum))
+                                               c.Assert(err, check.IsNil)
+                                               _, err = f.Readdir(-1)
+                                               c.Assert(err, check.IsNil)
+                                               f.Close()
+                                       }
+                                       if pnum%3 == 0 {
+                                               for d1num := 0; d1num < ndirs; d1num++ {
+                                                       f, err := s.fs.Open(fmt.Sprintf("/by_id/%s/TestLocks collection %d/dir1-%d", project.UUID, cnum, d1num))
+                                                       c.Assert(err, check.IsNil)
+                                                       fis, err := f.Readdir(-1)
+                                                       c.Assert(err, check.IsNil)
+                                                       c.Assert(fis, check.HasLen, ndirs+nfiles)
+                                                       f.Close()
+                                               }
+                                       }
+                                       for d1num := 0; d1num < ndirs; d1num++ {
+                                               for d2num := 0; d2num < ndirs; d2num++ {
+                                                       f, err := s.fs.Open(fmt.Sprintf("/by_id/%s/TestLocks collection %d/dir1-%d/dir2-%d", project.UUID, cnum, d1num, d2num))
+                                                       c.Assert(err, check.IsNil)
+                                                       fis, err := f.Readdir(-1)
+                                                       c.Assert(err, check.IsNil)
+                                                       c.Assert(fis, check.HasLen, nfiles)
+                                                       f.Close()
+                                               }
+                                       }
+                               }
+                       }
+               }()
+       }
+       wg.Wait()
+       c.Logf("MemorySize == %d", s.fs.MemorySize())
 }