Exemplo n.º 1
0
    def getMetadata(self, metaId=None):
        """
        Get Meta data array of key,values lines
        """
        if not metaId:
            metaId = self.getMetadataId()

        vgname, offs = metaId

        try:
            meta = misc.readblock(lvm.lvPath(vgname, sd.METADATA),
                                  offs * volume.METADATA_SIZE,
                                  volume.METADATA_SIZE)
            # TODO: factor out logic below for sharing with file volumes
            out = {}
            for l in meta:
                if l.startswith("EOF"):
                    return out
                if l.find("=") < 0:
                    continue
                key, value = l.split("=", 1)
                out[key.strip()] = value.strip()

        except Exception as e:
            self.log.error(e, exc_info=True)
            raise se.VolumeMetadataReadError("%s: %s" % (metaId, e))

        return out
Exemplo n.º 2
0
    def getMetadata(self, metaId=None):
        """
        Get Meta data array of key,values lines
        """
        if not metaId:
            metaId = self.getMetadataId()

        vgname, offs = metaId

        try:
            meta = misc.readblock(lvm.lvPath(vgname, sd.METADATA),
                                  offs * VOLUME_METASIZE, VOLUME_METASIZE)
            out = {}
            for l in meta:
                if l.startswith("EOF"):
                    return out
                if l.find("=") < 0:
                    continue
                key, value = l.split("=")
                out[key.strip()] = value.strip()

        except Exception as e:
            self.log.error(e, exc_info=True)
            raise se.VolumeMetadataReadError("%s: %s" % (metaId, e))

        return out
Exemplo n.º 3
0
    def readlines(self):
        # Fetch the metadata from metadata volume
        lvm.activateLVs(self._vgName, self._lvName)

        m = misc.readblock(self.metavol, self._offset, self._size)
        # Read from metadata volume will bring a load of zeroes trailing
        # actual metadata. Strip it out.
        metadata = [i for i in m if len(i) > 0 and i[0] != '\x00' and "=" in i]

        return metadata
Exemplo n.º 4
0
    def readlines(self):
        # Fetch the metadata from metadata volume
        lvm.activateLVs(self._vgName, self._lvName)

        m = misc.readblock(self.metavol, self._offset, self._size)
        # Read from metadata volume will bring a load of zeroes trailing
        # actual metadata. Strip it out.
        metadata = [i for i in m if len(i) > 0 and i[0] != '\x00' and "=" in i]

        return metadata