Add support for TimeWindow Compaction Strategy #1432
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raphaelsc
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For more details, https://issues.apache.org/jira/browse/CASSANDRA-9666 Fixes scylladb#1432. Signed-off-by: Raphael S. Carvalho <raphaelsc@scylladb.com>
raphaelsc
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For more details, https://issues.apache.org/jira/browse/CASSANDRA-9666 Fixes scylladb#1432. Signed-off-by: Raphael S. Carvalho <raphaelsc@scylladb.com>
avikivity
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"Time window strategy was introduced to address several limitations of date tiered strategy. In addition, its options are much easier to reason about, basically just window size and window unit. TWCS will work to keep only one sstable in each window. So the only real optimization needed is to align partition key to the window. Size tiered strategy is used to reduce write amplification when compacting the incoming window. For more details: https://issues.apache.org/jira/browse/CASSANDRA-9666 Fixes #1432." * 'twcs_v2' of github.com:raphaelsc/scylla: tests: add tests for time window compaction strategy compaction: wire up time window compaction strategy compaction/twcs: override default values with options in schema sstables: implement time window compaction strategy sstables: import TimeWindowCompactionStrategy.java
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@hasmikhail Are there any updates on this? I am using scylla 2.0.1 and when I try to alter my table to use TWCS I get that the strategy isnt found. eg: ALTER TABLE prices WITH compaction = {
'compaction_window_size': '30',
'compaction_window_unit': 'DAYS',
'class': 'TimeWindowCompactionStrategy'};I get: |
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TimeWindowCompactionStrategy will be part of 2.1
…On Tue, Nov 28, 2017 at 9:46 AM, Quinton Pike ***@***.***> wrote:
@hasmikhail <https://github.com/hasmikhail> Are there any updates on
this? I am using scylla 2.0.1 and when I try to alter my table to use TWCS
I get that the strategy isnt found.
eg:
ALTER TABLE prices WITH compaction = {
'compaction_window_size': '30',
'compaction_window_unit': 'DAYS',
'class': 'TimeWindowCompactionStrategy'};
I get: ConfigurationException: Unable to find compaction strategy class
'TimeWindowCompactionStrategy'
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On Tue, Nov 28, 2017 at 5:46 AM, Quinton Pike ***@***.***> wrote:
@hasmikhail <https://github.com/hasmikhail> Are there any updates on
this? I am using scylla 2.0.1 and when I try to alter my table to use TWCS
I get that the strategy isnt found.
TWCS will be first available in scylla 2.1
… eg:
ALTER TABLE prices WITH compaction = {
'compaction_window_size': '30',
'compaction_window_unit': 'DAYS',
'class': 'TimeWindowCompactionStrategy'};
I get: ConfigurationException: Unable to find compaction strategy class
'TimeWindowCompactionStrategy'
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<#1432 (comment)>,
or mute the thread
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@slivne Any rough estimates on 2.1 release date? Thanks for the great work on this project! |
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extracted from PR #511
"DTCS will be deprecated, suggest support TWCS , see https://issues.apache.org/jira/browse/CASSANDRA-9666"
cassandra implementation jeffjirsa/cassandra@f966b5b
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