Multiple tests are seeing a cluster of apparently related symptoms:
- During the last portion of a checkpoint cache usage grows to well above the configured maximum
- Operations stall, probably as a result of cache exceeding maximum
- The WiredTigerLAS.wt file grows without bound, and circumstantial evidence related to the use of the WT lookaside cache connects this with the previous two symptoms.
- FTDC data capture stalls
Three examples from two different apps: