Simplify Snapshot Delete Further #47626
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This change removes the special path for deleting the index metadata blobs and moves deleting them to the bulk delete of unreferenced blobs at the end of the snapshot delete process. This saves N RPC calls for a snapshot containing N indices and simplifies the code.
original-brownbear
added
>non-issue
:Distributed Coordination/Snapshot/Restore
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Pinging @elastic/es-distributed (:Distributed/Snapshot/Restore) |
tlrx
approved these changes
Oct 7, 2019
| writeIndexGen(updatedRepositoryData, repositoryStateId); | ||
| final ActionListener<Void> afterCleanupsListener = | ||
| new GroupedActionListener<>(ActionListener.wrap(() -> listener.onResponse(null)), 2); | ||
| threadPool.executor(ThreadPool.Names.SNAPSHOT).execute(ActionRunnable.wrap(afterCleanupsListener, |
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Nit: maybe add a single line comment like // clean up unreferenced blob in parallel with the snapshot deletion ?
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Thanks Tanguy! |
original-brownbear
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Oct 7, 2019
This change removes the special path for deleting the index metadata blobs and moves deleting them to the bulk delete of unreferenced blobs at the end of the snapshot delete process. This saves N RPC calls for a snapshot containing N indices and simplifies the code. Also, this change moves the unreferenced data cleanup up the stack to make it more obvious that any exceptions during this pahse will be ignored and not fail the delete request. Lastly, this change removes the needless chaining of first deleting unreferenced data from the snapshot delete and then running the stale data cleanup (that would also run from the cleanup endpoint) and simply fires off the cleanup right after updating the repository data (index-N) in parallel to the other delete operations to speed up the delete some more.
original-brownbear
added a commit
that referenced
this pull request
Oct 7, 2019
This change removes the special path for deleting the index metadata blobs and moves deleting them to the bulk delete of unreferenced blobs at the end of the snapshot delete process. This saves N RPC calls for a snapshot containing N indices and simplifies the code. Also, this change moves the unreferenced data cleanup up the stack to make it more obvious that any exceptions during this pahse will be ignored and not fail the delete request. Lastly, this change removes the needless chaining of first deleting unreferenced data from the snapshot delete and then running the stale data cleanup (that would also run from the cleanup endpoint) and simply fires off the cleanup right after updating the repository data (index-N) in parallel to the other delete operations to speed up the delete some more.
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This change removes the special path for deleting
the index metadata blobs and moves deleting them to
the bulk delete of unreferenced blobs at the end of
the snapshot delete process.
This saves N RPC calls for a snapshot containing N
indices and simplifies the code.
Also, this change moves the unreferenced data cleanup up
the stack to make it more obvious that any exceptions during
this pahse will be ignored and not fail the delete request.
Lastly, this change removes the needless chaining of
first deleting unreferenced data from the snapshot delete
and then running the stale data cleanup (that would also run
from the cleanup endpoint) and simply fires off the cleanup
right after updating the repository data (index-N) in parallel
to the other delete operations to speed up the delete some more.