What are the main reasons for the failure of wdpost

[de-authority]

I see a lot of wdpost failure related queries in the community everyday, can you share the main reasons that lead to wdpost failure? By the way, how did you find and solve this cause?

[de-authority]

1: do wdpost slowly

you can find this by filter the miner log with "elapsed" mostly like this 2021-07-02T16:31:35.016+0200 INFO storageminer storage/wdpost_run.go:642 computing window post {"batch": 0, "elapsed": 901.551636302}
if the elapsed time is longer than 1800. you have slow wdpost.
it may cause by

1. calculate without GPU
2. bad network storage system.

[dd45e640b42e6da7da96faee3996ef7c]

• file limits wrongly set
• storage access to slow
• cores/gpu used by other stuff
• connection to the lotus daemon fails
• internet connection fails
• lotus daemon out of sync
• address traffic jams/stuck messages
• no fil in wallets for sending the post

the list is for sure longer than this