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Files that changed from the base of the PR and between 9d3203402ebe839a8ef2a1bb0e3d0a5e3ec2e108 and 3c301118da82f8d62517d9f74d2e8321285ba64b.
The recent changes in node/pkg/fetcher/accumulator.go
improve the efficiency of the data processing and storage in the accumulatorJob
function. The modification involves restructuring the loop to better handle data from the accumulatorChannel
, updating localAggregatesDataPgsql
, and managing localAggregatesDataRedis
based on timestamps to ensure timely and efficient data operations.
File Path | Change Summary |
---|---|
node/pkg/fetcher/accumulator.go |
Revamped the loop structure in accumulatorJob to enhance data processing and storage efficiency, including managing localAggregatesDataRedis and localAggregatesDataPgsql based on timestamps. |
sequenceDiagram
participant Accumulator as Accumulator
participant AccumulatorChannel as accumulatorChannel
participant PgSQL as localAggregatesDataPgsql
participant Redis as localAggregatesDataRedis
loop Process Data
Accumulator ->> AccumulatorChannel: Read data
Accumulator ->> PgSQL: Update based on data
Accumulator ->> Redis: Check timestamps and update
end
accumulatorJob
function aim to optimize CPU usage and data processing efficiency, potentially addressing the concerns raised in this issue about intensive CPU operations and improving the approach by restructuring the loop.In the code's vast realms, where data does flow,
A loop was reborn, both swift and aglow.
With timestamps to guide, and storage to know,
Efficiency sparkles, in the fetcher's tableau.
So sing, little code, in the languages' song,
Your logic reformed, ever swift, ever strong.
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hmm i cannot think of a scenario where this could happen. There is only one goroutine that handles a specific feed data. Data is popped from a channel and written to a db atomically. Is there any race condition that can result in outdated data?
hmm i cannot think of a scenario where this could happen. There is only one goroutine that handles a specific feed data. Data is popped from a channel and written to a db atomically. Is there any race condition that can result in outdated data?
in redis, only single entry is stored per configuration id as latest local aggregate value to be referenced from aggregator from accumulator, if there's more than two more entries with the same configid, there's a possible scenario where the old local aggregate value overwrites new local aggregate value.
hmm i cannot think of a scenario where this could happen. There is only one goroutine that handles a specific feed data. Data is popped from a channel and written to a db atomically. Is there any race condition that can result in outdated data?
in redis, only single entry is stored per configuration id as latest local aggregate value to be referenced from aggregator from accumulator, if there's more than two more entries with the same configid, there's a possible scenario where the old local aggregate value overwrites new local aggregate value.
hmm but keys in redis are unique so we cannot have multiple entries with the same configid, right?
hmm i cannot think of a scenario where this could happen. There is only one goroutine that handles a specific feed data. Data is popped from a channel and written to a db atomically. Is there any race condition that can result in outdated data?
in redis, only single entry is stored per configuration id as latest local aggregate value to be referenced from aggregator from accumulator, if there's more than two more entries with the same configid, there's a possible scenario where the old local aggregate value overwrites new local aggregate value.
hmm but keys in redis are unique so we cannot have multiple entries with the same configid, right?
yes, that is why I added the condition, so that it doesn't overwrite with old data. I was talking about the scenario where there are multiple entries per config id in the channel to be bulk stored
Description
Add condition to prevent overwriting redis database with old local aggregate data.
Type of change
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