Make SchemaStorage accessible in Offloader #6567
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jiazhai
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Mar 20, 2020
sijie
approved these changes
Mar 20, 2020
|
conflict with #6764, mark as 2.5.2 and cherry-pick into branch-2.5 |
jiazhai
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May 8, 2020
While offloading ledgers from bookies to 2nd storage, we could offload the ledgers in columnar format. Columnar data could accelerate analytical workloads' execution by skipping unnecessary columns or data blocks (also known as column pruning and filter push down in analytical systems). The only blocker in Pulsar side is that offloaders cannot get the schema of the ledgers, this PR makes the schema storage accessible from offloaders. (cherry picked from commit 3223477)
huangdx0726
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Aug 24, 2020
While offloading ledgers from bookies to 2nd storage, we could offload the ledgers in columnar format. Columnar data could accelerate analytical workloads' execution by skipping unnecessary columns or data blocks (also known as column pruning and filter push down in analytical systems). The only blocker in Pulsar side is that offloaders cannot get the schema of the ledgers, this PR makes the schema storage accessible from offloaders.
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While offloading ledgers from bookies to 2nd storage, we could offload the ledgers in columnar format. Columnar data could accelerate analytical workloads' execution by skipping unnecessary columns or data blocks (also known as column pruning and filter push down in analytical systems).
The only blocker in Pulsar side is that offloaders cannot get the schema of the ledgers, this PR makes the schema storage accessible from offloaders.