df4fac2849
To ask user the host is not shared with another services, then set "--lock-memory 1" if it's not shared. Fixes #1393
56 lines
1.9 KiB
Python
Executable File
56 lines
1.9 KiB
Python
Executable File
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#
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# Copyright 2019 ScyllaDB
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#
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#
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# This file is part of Scylla.
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#
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# Scylla is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Scylla is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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import os
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import sys
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import argparse
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from scylla_util import *
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if __name__ == '__main__':
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if os.getuid() > 0:
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print('Requires root permission.')
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sys.exit(1)
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parser = argparse.ArgumentParser(description='Configure memory for Scylla.')
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parser.add_argument('--lock-memory',
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help='lock all memory', action='store_true')
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parser.add_argument('--memory',
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help='memory to use, in bytes (ex: 4G, default=all)')
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parser.add_argument('--reserve-memory',
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help='memory reserved to OS (if --memory not specified)')
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args = parser.parse_args()
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if not args.lock_memory and not args.memory and not args.reserve_memory:
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parser.print_help()
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sys.exit(1)
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conf_args=[]
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if args.lock_memory:
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conf_args.append('--lock-memory=1')
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if args.memory:
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conf_args.append('--memory={}'.format(args.memory))
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if args.reserve_memory:
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conf_args.append('--reserve-memory={}'.format(args.reserve_memory))
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conf = 'MEM_CONF="{}"\n'.format(' '.join(conf_args))
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with open(str(etcdir_p() / 'scylla.d' / 'memory.conf'), 'w') as f:
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f.write(conf)
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