Details
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Bug
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Resolution: Won't Fix
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Test Blocker
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None
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None
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None
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*Location*: https://docs.couchbase.com/server/6.0/manage/manage-logging/manage-logging.html
*User-Agent*: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36
*Screen Resolution*: 1920 x 1080
Description
My use case: I have some slow operations, so I want to see what is logged at the cluster. After searching a bit, I find this page. It does identify "slow operations" going to the memcached.log.
After looking at the memcached.log, I don't see the slow operations in there. I don't know what the thresholds are for logging.
Looking at how to adjust the logging, I'm told to look at etc/couchbase/static_config.
This file contains a set of Erlang terms:
{error_logger_mf_dir, "/opt/couchbase/var/lib/couchbase/logs"}.
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{path_config_bindir, "/opt/couchbase/bin"}.
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{path_config_etcdir, "/opt/couchbase/etc/couchbase"}.
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{path_config_libdir, "/opt/couchbase/lib"}.
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{path_config_datadir, "/opt/couchbase/var/lib/couchbase"}.
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{path_config_tmpdir, "/opt/couchbase/var/lib/couchbase/tmp"}.
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{path_config_secdir, "/opt/couchbase/etc/security"}.
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{nodefile, "/opt/couchbase/var/lib/couchbase/couchbase-server.node"}.
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{loglevel_default, debug}.
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{loglevel_couchdb, info}.
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{loglevel_ns_server, debug}.
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{loglevel_error_logger, debug}.
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{loglevel_user, debug}.
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{loglevel_menelaus, debug}.
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{loglevel_ns_doctor, debug}.
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{loglevel_stats, debug}.
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{loglevel_rebalance, debug}.
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{loglevel_cluster, debug}.
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{loglevel_views, debug}.
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{loglevel_mapreduce_errors, debug}.
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{loglevel_xdcr, debug}.
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{loglevel_access, info}.
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{disk_sink_opts,
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[{rotation, [{compress, true},
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{size, 41943040},
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{num_files, 10},
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{buffer_size_max, 52428800}]}]}.
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{disk_sink_opts_json_rpc,
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[{rotation, [{compress, true},
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{size, 41943040},
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{num_files, 2},
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{buffer_size_max, 52428800}]}]}.
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{net_kernel_verbosity, 10}.
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{ipv6, false}.
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Problem: For the average user, this will not end well. This is not a file with simple thresholds to adjust, and I cannot see any documentation beyond this.
Personally speaking, I can/have written erlang code and I actually know what our config is, but I'd have to dive into source code to know what erlang terms to put in here. The word memcached does not appear here. I suspect I need to adjust arguments to it, but the method of doing that is not well described.
Suggested Solution: Add documentation on how to handle this.
Attachments
Issue Links
- relates to
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MB-31913 add some clues for adjusting logging to static_config
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- Open
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