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65 lines
2.5 KiB
Python
65 lines
2.5 KiB
Python
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#!/usr/bin/env python3
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# Copyright (c) 2023-present The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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"""Test running bitcoind with -reindex from a read-only blockstore
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- Start a node, generate blocks, then restart with -reindex after setting blk files to read-only
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"""
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import platform
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import stat
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import subprocess
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from test_framework.test_framework import BitcoinTestFramework
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class BlockstoreReindexTest(BitcoinTestFramework):
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def set_test_params(self):
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self.setup_clean_chain = True
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self.num_nodes = 1
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self.extra_args = [["-fastprune"]]
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def reindex_readonly(self):
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self.log.debug("Generate block big enough to start second block file")
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fastprune_blockfile_size = 0x10000
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opreturn = "6a"
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nulldata = fastprune_blockfile_size * "ff"
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self.generateblock(self.nodes[0], output=f"raw({opreturn}{nulldata})", transactions=[])
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self.stop_node(0)
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assert (self.nodes[0].chain_path / "blocks" / "blk00000.dat").exists()
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assert (self.nodes[0].chain_path / "blocks" / "blk00001.dat").exists()
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self.log.debug("Make the first block file read-only")
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filename = self.nodes[0].chain_path / "blocks" / "blk00000.dat"
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filename.chmod(stat.S_IREAD)
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used_chattr = False
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if platform.system() == "Linux":
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try:
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subprocess.run(['chattr', '+i', filename], capture_output=True, check=True)
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used_chattr = True
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self.log.info("Made file immutable with chattr")
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except subprocess.CalledProcessError as e:
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self.log.warning(str(e))
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if e.stdout:
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self.log.warning(f"stdout: {e.stdout}")
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if e.stderr:
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self.log.warning(f"stderr: {e.stderr}")
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self.log.debug("Attempt to restart and reindex the node with the unwritable block file")
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with self.nodes[0].assert_debug_log(expected_msgs=['FlushStateToDisk', 'failed to open file'], unexpected_msgs=[]):
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self.nodes[0].assert_start_raises_init_error(extra_args=['-reindex', '-fastprune'],
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expected_msg="Error: A fatal internal error occurred, see debug.log for details")
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if used_chattr:
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subprocess.check_call(['chattr', '-i', filename])
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filename.chmod(0o777)
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def run_test(self):
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self.reindex_readonly()
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if __name__ == '__main__':
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BlockstoreReindexTest().main()
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