live accounting used to be a cache to store writes before they are picked up during
the tally iteration, after which the cache is cleared. This created a window in which
users could potentially exceed the storage limit. This PR refactors live accounting to
hold current estimations of space used per project. This should also reduce DB load
since we no longer need to query the satellite DB when checking space used for limiting.
The mechanism by which the new live accounting system works is as follows:
During the upload of any segment, the size of that segment is added to its respective
project total in live accounting. At the beginning of the tally iteration we record
the current values in live accounting as `initialLiveTotals`. At the end of the tally
iteration we again record the current totals in live accounting as `latestLiveTotals`.
The metainfo loop observer in tally allows us to get the project totals from what it
observed in metainfo DB which are stored in `tallyProjectTotals`. However, for any
particular segment uploaded during the metainfo loop, the observer may or may not
have seen it. Thus, we take half of the difference between `latestLiveTotals` and
`initialLiveTotals`, and add that to the total that was found during tally and set that
as the new live accounting total.
Initially, live accounting was storing the total stored amount across all nodes rather than
the segment size, which is inconsistent with how we record amounts stored in the project
accounting DB, so we have refactored live accounting to record segment size
Change-Id: Ie48bfdef453428fcdc180b2d781a69d58fd927fb
Create a service for deleting pieces of storage nodes.
Currently the DeletePieces method returns after a success threshold,
completion or a timeout.
The end goal is to return when reaching the success threshold and
leaving the remaining goroutines running after DeletePieces method
returns and add a life cycle to the service that it waits for them when
it closes.
This is the first commit for ticket:
https://storjlabs.atlassian.net/browse/V3-3476
Change-Id: If740bbf57c741f880449980b8176b036dd956c7b
Add a back-pressure mechanism to the satellite metainfo
DeleteObjectPieces method for returning once the 75% of successful
deleted pieces is reached.
Change-Id: Ia38df49fba5838f0605c40a77cfff8e3442cb5b0
The DeleteObjectPieces should print out the warning on closing the
connections only if there was an error.
Change-Id: If3d7ab256d8508c08388c1f22c7dd1eb819d2509
The DeleteObjectPieces must close the storage node client once it has
finished deleting its pieces.
Change-Id: I08eb8af8e4215d77d59b52f5055211b918374ab4
DeleteObjectPieces must not call overlay cache KnownReliable method with
an empty list of node IDs for avoiding to log a useless noisy warning.
Change-Id: Ibe2a34f2913f003d3ba020f9764c1369fa63123b
Use the helper function IsRPC of the err2 package rather than checking
if an error is of a specific RPC status code with an 'if' conditional.
Change-Id: Ibe89d6c2d836307c3112a6d7cc6bf95f0f985fd2
deletePointer must return an ErrObjectNotFound rather than a rpc status
error NotFound because the callers must distinguish such error if it
comes from the getPointer or from the UnsynchronizedDelete.
Change-Id: I68b4e45a2765e63b73bf85c2c39a5fc0198373f6
We are missing some tests for new Metainfo API that we have for old API.
This is first change to adjust old tests to new API.
Change-Id: Ie2b16bf85de8633662f952e863dbf3d409d801d9
For improving the deletion performance we are shifting the
responsibility to delete the pieces of the object from Uplink to the
Satellite.
BeginDeleteObject was the first call to return the stream ID which was
used for after retrieving the list of segments and then get addressed
order limits for deleting the pieces (of each segment) from the storage
nodes.
Now we want the Satellite deletes the pieces of all the object segments
from the storage nodes hence we don't need anymore to have several
network round trips between the Uplink and the Satellite because the
Satellite can delete all of them in the initial BegingDeleteObject
request.
satellite/metainfo.ListSegments has been changed to return 0 items if
the pointer of the last segment of an object is not found because we
need to preserve the backward compatibility with Uplinks that won't be
updated to the last release and they rely on listing the segments after
calling BeginDeleteObject for retrieving the addressed order limits
to contact the storage nodes to delete the pieces.
Change-Id: I5f99ecf27d62d65b0a062936b9b17581ef692af0
The endpoint listSegmentsManually method misses a check for the limit
parameter, otherwise it can return inconsistent results when it's 0 or
negative.
When 0 or negative, without the check, it returns no segments but also
that there isn't more segments and that isn't correct.
The function is only called from the Endpoint.ListSegments method and
the function cares to ensure that limit is always greater than 0, but if
the method doesn't check that a new future caller could misuse it and
provoke a bug.
Additionally:
* Documentation for the modified function has been written
* The part of the function that repeated the logic of the
Endpoint.getPointer method has been removed for using that method.
* Added logging before returning an internal error in
Endpoint.getPointer.
Change-Id: I5c4f0db2292da0162db6b7d63553895808d0925a
Do some cleanup for adding new identified TODOs (associated with ticket
https://storjlabs.atlassian.net/browse/V3-3406) and remove an old one.
Change-Id: I5d20dbe1c4dee0a8279e08b05b907f4cc9dba278
* Use unexported existent method in logic that was duplicated in some
exported methods.
* Log a forgotten internal error.
* Improve the documentation adding more and fixing some to fit to our
code style conventions.
Change-Id: Ie6f8bc59f9089f92b8b0d1b4c09c2142c3f273f5
The Endpoint.getPointer method lacked of tracing.
Also add a dot at the end of documentation comment for following our
code style conventions.
Change-Id: I9b63ad297f04e31825648aae43aa8f9ebba2b4e2
Return an error when misusing the endpoint method
'listSegmentsFromNumberOfSegments' because there is the method
'listSegmentsManually' for being used when the number of segments is
less or equal than 0.
If we don't return an error on `listSegmentsFromNumberOfSegments` we
would realize that we have a bug much more later than returning an error
because the clients wouldn't receive an error and would receive an empty
list, making them to wonder what they are doing wrong to receive 0
results before they realize that they could be in front of a bug.
This commit also renames the function to be plural as "numberOfSegments"
parameter and the test function which missed also the end 's'.
Change-Id: I02318685bf36aa3af26545731a1711621a5e2e39
Fix a documentation comment for one method and apply our code
conventions to some that I stumbled.
Change-Id: I3baf5d004a128dcd561c3e27c080aab345c64461
Improve the piece hash validation filtering out a piece when an order
limit is not found for it.
The commit also improves the documentation of an internal metainfo
method and rename the parameters of 2 methods for clarifying what they
are.
Large conditional blocks are hard to read.
When the conditional block only has one branch it's easy to understand
the logic of the function to early return switching the condition.
We don't use reverse listing in any of our code, outside of tests, and
it is only exposed through libuplink in the
lib/uplink.(*Project).ListBuckets() API. We also don't know of any users
who might have a need for reverse listing through ListBuckets().
Since one of our prospective pointerdb backends can not support
backwards iteration, and because of the above considerations, we are
going to remove the reverse listing feature.
Change-Id: I8d2a1f33d01ee70b79918d584b8c671f57eef2a0
* uplink/storage/segments: return error no optimal threshold
Return an error if the store get less uploaded pieces than the indicated
by the optimal threshold.
* satellite/metainfo: Fix gRPC status error & add reason
This commit fix the CommitSegment endpoint method to return an
"Invalid Argument" status code when uplink submits invalid data which is
detected when filtering invalid pieces by filterInvalidPieces endpoint
method.
Because filterInvalidPieces is also used by CommitSegmentOld, such
method part has been changed accordingly.
* An initial check in CommitSegment to detect earlier if uplink sends an
invalid number of upload pieces.
* Add more information to some log messages.
* Return more information to uplink when it sends a number of invalid
pieces which make impossible to finish the operation successfully.
* satellite/metainfo: Swap some "sugar" loggers to normal ones
Swap "sugar" loggers to normal ones because they impact the performance
in production systems and they should only be used under specific
circumstances which were none of the ones changed.
all of the packages and tests work with both grpc and
drpc. we'll probably need to do some jenkins pipelines
to run the tests with drpc as well.
most of the changes are really due to a bit of cleanup
of the pkg/transport.Client api into an rpc.Dialer in
the spirit of a net.Dialer. now that we don't need
observers, we can pass around stateless configuration
to everything rather than stateful things that issue
observations. it also adds a DialAddressID for the
case where we don't have a pb.Node, but we do have an
address and want to assert some ID. this happened
pretty frequently, and now there's no more weird
contortions creating custom tls options, etc.
a lot of the other changes are being consistent/using
the abstractions in the rpc package to do rpc style
things like finding peer information, or checking
status codes.
Change-Id: Ief62875e21d80a21b3c56a5a37f45887679f9412
What: we move api keys out of the grpc connection-level metadata on the client side and into the request protobufs directly. the server side still supports both mechanisms for backwards compatibility.
Why: dRPC won't support connection-level metadata. the only thing we currently use connection-level metadata for is api keys. we need to move all information needed by a request into the request protobuf itself for drpc support. check out the .proto changes for the main details.
One fun side-fact: Did you know that protobuf fields 1-15 are special and only use one byte for both the field number and type? Additionally did you know we don't use field 15 anywhere yet? So the new request header will use field 15, and should use field 15 on all protobufs going forward.
Please describe the tests: all existing tests should pass
Please describe the performance impact: none
