Shulou(Shulou.com)06/01 Report--

I. Log cleaning steps

1. Use the database command rotate log to log in to the mongod and mongos instances, respectively

# mongo-- host localhost:27xxxMongoDB shell version: 2.6.xconnecting to: localhost:27xxx/testreplicaset003:SECONDARY > dbtestreplicaset003:SECONDARY > use adminswitched to db adminreplicaset003:SECONDARY > db.runCommand ({logRotate:1}) {"ok": 1} replicaset003:SECONDARY > replicaset001:ARBITER > exitbye# lltotal 22195424 exitbye# lltotal-1 mongod mongod 1124 Dec 20 11:04 mongoc.log-rw-r--r-- 1 mongod mongod 33341517 Dec 20 10:59 mongoc.log.2016-12-20T03-01-17 -rw-r--r-- 1 mongod mongod 4944 Dec 20 11:07 mongod1.log-rw-r--r-- 1 mongod mongod 680817815 Dec 20 11:03 mongod1.log.2016-12-20T03-04-01 Mustang RW Quan-1 mongod mongod 1030 Dec 20 11:07 mongod2.log-rw-r--r-- 1 mongod mongod 1813798574 Dec 20 11:07 mongod2.log.2016-12-20T03-07-43 Mustang RW Quan- 1 mongod mongod 2413 Dec 20 11:07 mongod.log-rw-r--r-- 1 mongod mongod 1880520643 Dec 20 11:06 mongod.log.2016-12-20T03-06-17 mongod 1957 7575 Dec 20 10:52 mongos.log.2016-12-20T02-53-04

two。 Use the system command to clear the log file and keep the log

# cat / dev/null > mongos.log.2016-12-20T02-53-0mm cat / dev/null > mongod.log.2016-12-20T03-06-20T03 cat / dev/null > mongod2.log.2016-12-20T03-07-4mm cat / dev/null > mongod1.log.2016-12-20T03-04-0mm cat / dev/null > mongoc.log.2016-12-20T03-01-root@dev-mongo-001 [root@dev-mongo-001-242mongo] # lltotal 28anthrw- Rmurk mongod mongod-1 mongod mongod 1338 Dec 20 11:09 mongoc.log-rw-r--r-- 1 mongod mongod 0 Dec 20 11:10 mongoc.log.2016-12-20T03-01-17 Mustang RQ-1 mongod mongod 7670 Dec 20 11:10 mongod1.log-rw-r--r-- 1 mongod mongod 0 Dec 20 11:10 mongod1.log.2016-12-20T03-04-01 Kui RW Muk-1 mongod mongod 3594 Dec 20 11: 10 mongod2.log-rw-r--r-- 1 mongod mongod 0 Dec 20 11:10 mongod2.log.2016-12-20T03-07-43 mongos.log-rw-r--r-- RW 20T03-1 mongod mongod 5247 Dec 20 11:10 mongod.log-rw-r--r-- 1 mongod mongod 0 Dec 20 11:09 mongod.log.2016-12-20T03-06-17 Mustang RW mongod.log.2016-1 mongod mongod 2297 Dec 20 11:10 mongos.log-rw-r--r-- 1 Mongod mongod 0 Dec 20 11:09 mongos.log.2016-12-20T02-53-04

Second, train of thought

1. In general, there are two ways to sort out the log of the database, one is through the database command, the other is the system command.

two。 Log cleanup of the original file must be retained, can not use rm to delete files, do not, our aim is to free space.

3. Some companies require that the logs be archived to the big data platform for analysis, so you need to be clear when cleaning up the log files, and don't do it blindly.

III. Official documents

Https://docs.mongodb.com/v2.6/tutorial/rotate-log-files/

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