fcb8d040e8
Instead of lengthy blurbs, switch to single-line, machine-readable standardized (https://spdx.dev) license identifiers. The Linux kernel switched long ago, so there is strong precedent. Three cases are handled: AGPL-only, Apache-only, and dual licensed. For the latter case, I chose (AGPL-3.0-or-later and Apache-2.0), reasoning that our changes are extensive enough to apply our license. The changes we applied mechanically with a script, except to licenses/README.md. Closes #9937
63 lines
1.8 KiB
Python
Executable File
63 lines
1.8 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright (C) 2018-present ScyllaDB
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#
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#
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# SPDX-License-Identifier: AGPL-3.0-or-later
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#
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import argparse
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import os
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import json
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from functools import reduce
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import requests
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def scylla_api_get(item, params={}):
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headers = {
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'Content-Type': 'application/json',
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'Accept': 'application/json',
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}
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response = requests.get('http://127.0.0.1:10000/{}'.format(item), headers=headers, params=params)
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return response
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def toppartitions(kscf, duration, list_size, capacity):
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r = scylla_api_get('column_family/toppartitions/{}'.format(kscf), {
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'duration': str(duration),
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'list_size': str(list_size),
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'capacity': str(capacity)})
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return json.loads(r.text)
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def print_pks(title, map):
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print(title)
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w = reduce(lambda n, r: max(len(r['partition']), n), map, len('Partition')+3)
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print((" %-{}s%s".format(w)) % ('Partition', 'Count'))
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for r in map:
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print((" %-{}s%s".format(w)) % (r['partition'], r['count']))
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print()
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ap = argparse.ArgumentParser(description='Samples database reads and writes and reports the most active partitions in a specified table')
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ap.add_argument('-k', type=int,
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default=10, dest='list_size',
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help='The number of the top partitions to list (default: 10)')
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ap.add_argument('-s', type=int,
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default=256, dest='capacity',
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help='The capacity of stream summary (default: 256)')
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ap.add_argument('keyspace',
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help='Name of keyspace')
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ap.add_argument('table',
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help='Name of column family')
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ap.add_argument('duration', type=int,
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help='Query duration in milliseconds')
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args = ap.parse_args()
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res = toppartitions("{}:{}".format(args.keyspace, args.table), args.duration, args.list_size, args.capacity)
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if res == {}:
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print("(nothing reported)")
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exit(1)
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print_pks("READ", res["read"])
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print_pks("WRITE", res["write"])
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exit(0)
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