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https://github.com/ceph/ceph
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39 lines
1.4 KiB
Python
39 lines
1.4 KiB
Python
import logging
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from os.path import join as os_path_join
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from tasks.cephfs.cephfs_test_case import CephFSTestCase
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log = logging.getLogger(__name__)
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class TestFSRecovery(CephFSTestCase):
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"""
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Tests for recovering FS after loss of FSMap
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"""
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CLIENTS_REQUIRED = 1
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MDSS_REQUIRED = 3
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def test_recover_fs_after_fsmap_removal(self):
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data_pool = self.fs.get_data_pool_name()
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metadata_pool = self.fs.get_metadata_pool_name()
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# write data in mount, and fsync
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self.mount_a.create_n_files('file_on_fs', 1, sync=True)
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# faild MDSs to allow removing the file system in the next step
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self.fs.fail()
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# Remove file system to lose FSMap and keep the pools intact.
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# This mimics the scenario where the monitor store is rebuilt
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# using OSDs to recover a cluster with corrupt monitor store.
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# The FSMap is permanently lost, but the FS pools are
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# recovered/intact
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self.fs.rm()
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# Recreate file system with pool and previous fscid
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self.run_ceph_cmd(
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'fs', 'new', self.fs.name, metadata_pool, data_pool,
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'--recover', '--force', '--fscid', f'{self.fs.id}')
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self.fs.set_joinable()
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# Check status of file system
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self.fs.wait_for_daemons()
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# check data in file sytem is intact
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filepath = os_path_join(self.mount_a.hostfs_mntpt, 'file_on_fs_0')
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self.assertEqual(self.mount_a.read_file(filepath), "0")
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