这是一个创建于 2528 天前的主题，其中的信息可能已经有所发展或是发生改变。
官方说在 rocky 版本是作为实验功能引入,
参考后的配置(/etc/glance/glance-api.conf)
[DEFAULT] ... enabled_backends = reliable:file, fast:rbd ... [glance_store] default_backend = reliable [reliable] filesystem_store_datadir = /opt/stack/data/glance/images/ store_description = "Reliable filesystem backend" [fast] store_description = "Fast rbd backend" rbd_store_pool = images rbd_store_user = glance rbd_store_ceph_cOnf= /etc/ceph/ceph.conf rbd_store_chunk_size = 8 rados_connect_timeout = 0 [os_staging] filesystem_store_datadir = /opt/stack/data/glance/os_staging/ store_description = "Filesystem store for staging purpose" 源码内判断后端存储位置的代码(glance/glance/api/v2/image_data.py class ImageDataController)
... ... @utils.mutating def upload(self, req, image_id, data, size): backend = None if CONF.enabled_backends: backend = req.headers.get('x-image-meta-store', CONF.glance_store.default_backend) try: LOG.debug(" = = = = = = backend: %s = = = = = = " % backend) glance_store.get_store_from_store_identifier(backend) LOG.debug("glance_store.backend %s" % glance_store.backend) except glance_store.UnknownScheme as exc: raise webob.exc.HTTPBadRequest(explanation=exc.msg, request=req, content_type='text/plain') image_repo = self.gateway.get_repo(req.context) image = None refresher = None cxt = req.context try: self.policy.enforce(cxt, 'upload_image', {}) image = image_repo.get(image_id) image.status = 'saving' try: if CONF.data_api == 'glance.db.registry.api': # create a trust if backend is registry try: # request user plugin for current token user_plugin = req.environ.get('keystone.token_auth') roles = [] # use roles from request environment because they # are not transformed to lower-case unlike cxt.roles for role_info in req.environ.get( 'keystone.token_info')['token']['roles']: roles.append(role_info['name']) refresher = trust_auth.TokenRefresher(user_plugin, cxt.tenant, roles) except Exception as e: LOG.info(_LI("Unable to create trust: %s " "Use the existing user token."), encodeutils.exception_to_unicode(e)) image_repo.save(image, from_state='queued') image.set_data(data, size, backend=backend) try: image_repo.save(image, from_state='saving') except exception.NotAuthenticated: if refresher is not None: # request a new token to update an image in database cxt.auth_token = refresher.refresh_token() image_repo = self.gateway.get_repo(req.context) image_repo.save(image, from_state='saving') else: raise try: # release resources required for re-auth if refresher is not None: refresher.release_resources() except Exception as e: LOG.info(_LI("Unable to delete trust %(trust)s: %(msg)s"), {"trust": refresher.trust_id, "msg": encodeutils.exception_to_unicode(e)}) ... ... 目前请求头并没有 x-image-meta-store 属性,直接按默认的 reliable 后端配置来
相关日志:
12 月 24 15:59:25 controller [email protected][6524]: DEBUG glance.api.v2.image_data [None req-081110c4-8d29-4567-a4fb-bbbc7313efbf alt_demo admin] = = = = = = backend: reliable = = = = = = {{(pid=6527) upload /opt/stack/glance/glance/api/v2/image_data.py:127}} 12 月 24 15:59:25 controller [email protected][6524]: DEBUG glance.api.v2.image_data [None req-081110c4-8d29-4567-a4fb-bbbc7313efbf alt_demo admin] glance_store.backend <module 'glance_store.backend' from '/usr/lib/python2.7/site-packages/glance_store/backend.pyc'> {{(pid=6527) upload /opt/stack/glance/glance/api/v2/image_data.py:129}} ...... 12 月 24 15:59:26 controller [email protected][6524]: DEBUG glance_store._drivers.filesystem [None req-081110c4-8d29-4567-a4fb-bbbc7313efbf alt_demo admin] Wrote 0 bytes to /opt/stack/data/glance/images/9da337be-bb04-43af-ac1d-b9e5a15a0c70 with checksum d41d8cd98f00b204e9800998ecf8427e and multihash cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e {{(pid=6527) add /usr/lib/python2.7/site-packages/glance_store/_drivers/filesystem.py:728}} 12 月 24 15:59:27 controller [email protected][6524]: DEBUG glance_store.multi_backend [None req-081110c4-8d29-4567-a4fb-bbbc7313efbf alt_demo admin] Skipping store.set_acls... not implemented {{(pid=6527) set_acls_for_multi_store /usr/lib/python2.7/site-packages/glance_store/multi_backend.py:439}} ...... 在 http 上传缓存目录能找到上传成功的文件,但在从缓存目录写入到 image 目录时,但写入数据就变成了 Wrote 0 bytes
可能是最近比较浮躁
一直跑流程也还是找不到为什么
请求能有大大指点一二
 | 1 firejoke OP 回滚后测试,已经确定不是代码层的问题 |
| 2 firejoke OP 定位到了最终问题,是在 def upload(self, req, image_id, data, size): backend = None if CONF.enabled_backends: 下面打了个日志记录了整个 req,结果就导致写入数据 0 具体原因不明 |
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