[repl writer worker 11] ERROR: warning: log line attempted (126k) over max size(10k), printing beginning and end

[Vishesh Singhal]

Hi,

I have cluster with 3 nodes, and running the MongoDB as a windows service as:

"C:\MongoDB\bin\mongod.exe" --service --config="C:\MongoDB\Scripts\mongod.conf"

with mongod.conf file:

port=27017

dbpath=E:\MongoDB\data\db

logpath=D:\logs\MongoDB\mongo.log

keyFile=C:\MongoDB\scripts\keyfile.txt

logappend=true

replSet=tf4

smallfiles=true

oplogSize=10240

directoryperdb=true

I found that the Mongodb service was crashed. I checked the logs and found alot of Error/warning as:

Mon Jan 04 13:08:44.399 [repl writer worker 11] ERROR: warning: log line attempted (126k) over max size(10k), printing beginning and end

Can you please help me what that error is and how can I fix this error.

[Stephen Steneker]

On Tuesday, 5 January 2016 17:31:16 UTC+11, Vishesh Singhal wrote:

I found that the Mongodb service was crashed. I checked the logs and found alot of Error/warning as:

Mon Jan 04 13:08:44.399 [repl writer worker 11] ERROR: warning: log line attempted (126k) over max size(10k), printing beginning and end

Can you please help me what that error is and how can I fix this error.

Hi Vishesh,

Can you provide some more details:

• What specific version of MongoDB server and Windows are you running?
• Did the MongoDB service crash on all of your nodes, or a specific node?
• What is the current state of your replica set -- did the crashed nodes recover successfully, or are you still trying to restart them?
• What role did the node(s) have immediately prior to the crash (eg. primary or secondary)?

The particular log line you have highlighted is actually a warning, not an error. The warning relates to log entries that have been truncated (in the mongod log), which may be common if you generate large queries using $in. You should see part of the query logged (beginning and end), but the full content of the query is larger than 10k so there will be a "..." replacing the middle part of the query.

If your MongoDB service crashed, there should be a more descriptive error prior to the service stopping - try searching for "Assertion". If you can post a gist/pastebin with more of the log immediately prior to the crash, that would be helpful.

Regards,

Stephen