Resharding tool for sharded rocksdb#34667
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tchaikov merged 13 commits intoceph:masterfrom Jun 9, 2020
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jdurgin
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src/kv/RocksDBStore.cc
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| keys_per_iterator ++; | ||
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| //check if need to write batch | ||
| if (bytes_in_batch > 1000000 || |
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should we make these dev options? could see potentially wanting to do it in larger batches for speed, or smaller to throttle things.
Created function that prepares environment for _open_db. Signed-off-by: Adam Kupczyk <akupczyk@redhat.com>
Signed-off-by: Adam Kupczyk <akupczyk@redhat.com>
Reshard ability allows to change current sharding schema, without change to data. Signed-off-by: Adam Kupczyk <akupczyk@redhat.com>
Now merge operator name also includes operators from dedicated to shards. This makes it possible to reshard that will move prefix with merge operator away from default column family. Signed-off-by: Adam Kupczyk <akupczyk@redhat.com>
Signed-off-by: Adam Kupczyk <akupczyk@redhat.com>
…ing resharding Signed-off-by: Adam Kupczyk <akupczyk@redhat.com>
Signed-off-by: Adam Kupczyk <akupczyk@redhat.com>
Signed-off-by: Adam Kupczyk <akupczyk@redhat.com>
Signed-off-by: Adam Kupczyk <akupczyk@redhat.com>
Signed-off-by: Adam Kupczyk <akupczyk@redhat.com>
…ansferred Signed-off-by: Adam Kupczyk <akupczyk@redhat.com>
Signed-off-by: Adam Kupczyk <akupczyk@redhat.com>
Added possibility to control batch size and iterator refresh time for resharding process. Replaced getenv() with new control for resharding unittests. Signed-off-by: Adam Kupczyk <akupczyk@redhat.com>
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retest this please |
jdurgin
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Jun 5, 2020
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Introduces reshard() method to RocksDBStore.
It allows to change current sharding on existing database.
Gives ceph-bluestore-tool 'reshard' command that allows to apply that to BlueStore.