diff options
Diffstat (limited to 'libpod')
| -rw-r--r-- | libpod/boltdb_state.go | 141 |
1 files changed, 107 insertions, 34 deletions
diff --git a/libpod/boltdb_state.go b/libpod/boltdb_state.go index e5219ab8c..471f64b84 100644 --- a/libpod/boltdb_state.go +++ b/libpod/boltdb_state.go @@ -161,10 +161,6 @@ func (s *BoltState) Refresh() error { return define.ErrDBClosed } - if err := s.PruneContainerExitCodes(); err != nil { - return err - } - db, err := s.getDBCon() if err != nil { return err @@ -207,6 +203,45 @@ func (s *BoltState) Refresh() error { return err } + exitCodeBucket, err := getExitCodeBucket(tx) + if err != nil { + return err + } + + timeStampBucket, err := getExitCodeTimeStampBucket(tx) + if err != nil { + return err + } + + // Clear all exec exit codes + toRemoveExitCodes := []string{} + err = exitCodeBucket.ForEach(func(id, _ []byte) error { + toRemoveExitCodes = append(toRemoveExitCodes, string(id)) + return nil + }) + if err != nil { + return errors.Wrapf(err, "error reading exit codes bucket") + } + for _, id := range toRemoveExitCodes { + if err := exitCodeBucket.Delete([]byte(id)); err != nil { + return errors.Wrapf(err, "error removing exit code for ID %s", id) + } + } + + toRemoveTimeStamps := []string{} + err = timeStampBucket.ForEach(func(id, _ []byte) error { + toRemoveTimeStamps = append(toRemoveTimeStamps, string(id)) + return nil + }) + if err != nil { + return errors.Wrapf(err, "reading timestamps bucket") + } + for _, id := range toRemoveTimeStamps { + if err := timeStampBucket.Delete([]byte(id)); err != nil { + return errors.Wrapf(err, "removing timestamp for ID %s", id) + } + } + // Iterate through all IDs. Check if they are containers. // If they are, unmarshal their state, and then clear // PID, mountpoint, and state for all of them @@ -1358,6 +1393,14 @@ func (s *BoltState) GetContainerConfig(id string) (*ContainerConfig, error) { // AddContainerExitCode adds the exit code for the specified container to the database. func (s *BoltState) AddContainerExitCode(id string, exitCode int32) error { + if len(id) == 0 { + return define.ErrEmptyID + } + + if !s.valid { + return define.ErrDBClosed + } + db, err := s.getDBCon() if err != nil { return err @@ -1397,6 +1440,14 @@ func (s *BoltState) AddContainerExitCode(id string, exitCode int32) error { // GetContainerExitCode returns the exit code for the specified container. func (s *BoltState) GetContainerExitCode(id string) (int32, error) { + if len(id) == 0 { + return -1, define.ErrEmptyID + } + + if !s.valid { + return -1, define.ErrDBClosed + } + db, err := s.getDBCon() if err != nil { return -1, err @@ -1429,6 +1480,14 @@ func (s *BoltState) GetContainerExitCode(id string) (int32, error) { // GetContainerExitCodeTimeStamp returns the time stamp when the exit code of // the specified container was added to the database. func (s *BoltState) GetContainerExitCodeTimeStamp(id string) (*time.Time, error) { + if len(id) == 0 { + return nil, define.ErrEmptyID + } + + if !s.valid { + return nil, define.ErrDBClosed + } + db, err := s.getDBCon() if err != nil { return nil, err @@ -1456,16 +1515,22 @@ func (s *BoltState) GetContainerExitCodeTimeStamp(id string) (*time.Time, error) }) } -// PrunExitCodes removes exit codes older than 5 minutes. +// PruneExitCodes removes exit codes older than 5 minutes. func (s *BoltState) PruneContainerExitCodes() error { + if !s.valid { + return define.ErrDBClosed + } + db, err := s.getDBCon() if err != nil { return err } defer s.deferredCloseDBCon(db) + toRemoveIDs := []string{} + threshold := time.Minute * 5 - return db.View(func(tx *bolt.Tx) error { + err = db.View(func(tx *bolt.Tx) error { timeStampBucket, err := getExitCodeTimeStampBucket(tx) if err != nil { return err @@ -1477,43 +1542,51 @@ func (s *BoltState) PruneContainerExitCodes() error { return fmt.Errorf("converting raw time stamp %v of container %s from DB: %w", rawTimeStamp, string(rawID), err) } if time.Since(timeStamp) > threshold { - // Since the DB connection is locked, pass it - // to remove the exit codes to avoid race - // conditions. - return s.removeContainerExitCode(rawID, db) + toRemoveIDs = append(toRemoveIDs, string(rawID)) } return nil }) }) -} + if err != nil { + return errors.Wrapf(err, "reading exit codes to prune") + } -// removeContainerExitCode removes the exit code and time stamp of the specified container. -func (s *BoltState) removeContainerExitCode(rawID []byte, db *bolt.DB) error { - return db.Update(func(tx *bolt.Tx) error { - exitCodeBucket, err := getExitCodeBucket(tx) - if err != nil { - return err - } - timeStampBucket, err := getExitCodeTimeStampBucket(tx) - if err != nil { - return err - } + if len(toRemoveIDs) > 0 { + err = db.Update(func(tx *bolt.Tx) error { + exitCodeBucket, err := getExitCodeBucket(tx) + if err != nil { + return err + } + timeStampBucket, err := getExitCodeTimeStampBucket(tx) + if err != nil { + return err + } - var finalErr error - if err := exitCodeBucket.Delete(rawID); err != nil { - finalErr = fmt.Errorf("removing exit code of container %s from DB: %w", string(rawID), err) - } - if err := timeStampBucket.Delete(rawID); err != nil { - err = fmt.Errorf("removing exit-code time stamp of container %s from DB: %w", string(rawID), err) - if finalErr != nil { - logrus.Error(err) - } else { - finalErr = err + var finalErr error + for _, id := range toRemoveIDs { + rawID := []byte(id) + if err := exitCodeBucket.Delete(rawID); err != nil { + if finalErr != nil { + logrus.Error(finalErr) + } + finalErr = fmt.Errorf("removing exit code of container %s from DB: %w", id, err) + } + if err := timeStampBucket.Delete(rawID); err != nil { + if finalErr != nil { + logrus.Error(finalErr) + } + finalErr = fmt.Errorf("removing exit code timestamp of container %s from DB: %w", id, err) + } } + + return finalErr + }) + if err != nil { + return errors.Wrapf(err, "pruning exit codes") } + } - return finalErr - }) + return nil } // AddExecSession adds an exec session to the state. |