With many of Mongo’s warning messages, I can’t really decipher if they are good/bad and need attention.
What are the storage stats specifically? Is that something like RDBMS stats that help or aid in some other function and it is just sub-optimal if the stats aren’t there? To me, “storage stats” sounds like meta-data surrounding checkpoint writing to disk (?). So, if the writing/flushing isn’t completed within some interval, then subsequent “locks” can’t be acquired and therefore we get these warnings (failed to gather…)? I’ve seen others on the forum with the same warning message, and resolved it by ratcheting up some numbers really, really high and never really address the root cause. I’ve found that (over the years) putting band-aids on something we don’t entirely understand can have long-term negative impacts (especially if we forgot to baseline those changes).
Big question, did my transactions that happened during that timeframe succeed? I’m guessing so, but I just wanted to be sure. We have non-DBAs monitoring Mongo Logfiles and they don’t know what they mean and will flood my inbox with questions.
–Allan