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24 lines
1.3 KiB
Plaintext
24 lines
1.3 KiB
Plaintext
12.0.0
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* Some varients of the omap_get_keys and omap_get_vals librados
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functions have been deprecated in favor of omap_get_vals2 and
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omap_get_keys2. The new methods include an output argument
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indicating whether there are additional keys left to fetch.
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Previously this had to be inferred from the requested key count vs
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the number of keys returned, but this breaks with new OSD-side
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limits on the number of keys or bytes that can be returned by a
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single omap request. These limits were introduced by kraken but
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are effectively disabled by default (by setting a very large limit
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of 1 GB) because users of the newly deprecated interface cannot
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tell whether they should fetch more keys or not. In the case of
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the standalone calls in the C++ interface
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(IoCtx::get_omap_{keys,vals}), librados has been updated to loop on
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the client side to provide a correct result via multiple calls to
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the OSD. In the case of the methods used for building
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multi-operation transactions, however, client-side looping is not
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practical, and the methods have been deprecated. Note that use of
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either the IoCtx methods on older librados versions or the
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deprecated methods on any version of librados will lead to
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incomplete results if/when the new OSD limits are enabled.
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