How do I update memory consumption to fix indexer memory errors?
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During the indexing phase, many fetching processes are run asynchronously due to the load placed on trying to fetch all of the block content at once. These processes are stored in memory to be fetched at set intervals defined in each asynchronous fetcher.
Indexer.Memory.Monitor checks if the BEAM memory usage exceeds a set limit (defaults to 1 GiB) and if it does, it asks the process with the most memory that is registered as shrinkable to shrink.
Memory usage is checked once per minute. If the soft-limit is reached, the shrinkable work queues will shed half their load. The shed load will be restored from the database, the same as when a restart of the server occurs, so rebuilding the work queue will be slower, but use less memory.
If all queues are at their minimum size, then no more memory can be reclaimed and an error will be logged.
As mentioned above, future work is entered into memory to be processed later. These same processes are imported into the database to be checked on a server restart and reentered into memory to be processed.
The default Memory limit is 1 GiB and can be edited by setting INDEXER_MEMORY_LIMIT environment variable. See for more info.
To perform a left bitshift conversion yourself open the interactive shell.
1. iex
2. import Bitwise
3. 1 <<< 30 //1073741824
INDEXER_MEMORY_LIMIT environment variable value
Left Bitshift
Bytes
GiB
1 or 1gb or 1g regardless of the case of the letters
1 <<< 30
1073741824
1
5 or 5gb or 5g
5 <<< 30
5368709120
5.3
10 or 10gb or 10g
10 <<< 30
10737418240
10.7
15 or 15gb or 15g
15 <<< 30
16106127360
16.1
20 or 20gb or 20g
20 <<< 30
21474836480
21.4
25 or 25gb or 25g
25 <<< 30
26843545600
26.8
30 or 30gb or 30g
30 <<< 30
32212254720
32.2
35 or 35gb or 35g
35 <<< 30
37580963840
37.6
40 or 40gb or 40g
40 <<< 30
42949672960
43
45 or 45gb or 45g
45 <<< 30
48318382080
48.3
50 or 50gb or 50g
50 <<< 30
53687091200
53.7
100mb or 100m regardless of the case of the letters
100 <<< 20
104857600
0.105
500mb or 500m
500 <<< 20
524288000
0.52
1500mb or 1500m
1500 <<< 20
1572864000
1.57
9536mb or 9536m
9536 <<< 20
9999220736
~10
28610mb or 28610m
28610 <<< 20
29999759360
~30