Retrieving Log Information
Diagnostic and log information can be retrieved by using theGET
method with the/diag
and the/sasl_logs
URIs.
Description
The GET /diag
http method and URI returns general Couchbase Server diagnostic information.
The GET /sasl_logs
http method and URI returns information in a Couchbase Server log file.
For general information on logging and log files, including the location of all log files, see Manage Logging.
Curl Syntax
curl -v -X GET -u [admin]:[password] http://[hostname]:8091/diag curl -v -X GET -u [admin]:[password] http://[hostname]:8091/sasl_logs/[log-name]
The log-name
argument can be any one of the following, each of which is a Couchbase Server log file:
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If no log-name
argument is specified, the default value is debug
; whereby the contents of the debug.log
file are displayed.
Responses
For both URIs, success gives 200 OK
, and displays the returned content.
Failure to authenticate gives 401 Unauthorized
.
When GET /sasl_logs
is used, a log-name
that is either incorrectly specified, or corresponds to a log file that does not currently exist, gives 404 Object Not Found
.
Examples
The following examples show how to return diagnostic information and log-file content.
Returning Diagnostic Information
The following example uses GET /diag
to return Couchbase Server diagnostic information:
curl -v -X GET -u Administrator:password \ http://10.143.194.101:8091/diag
If successful, this returns (extensive) output whose initial section resembles the following:
logs: ------------------------------- 2020-02-07T04:30:30.429-08:00, ns_cookie_manager:3:info:cookie update(ns_1@cb.local) - Initial otp cookie generated: {sanitized, <<"ioEsqBp4LGNDxWCwMhypDPgfIrcseb1GCgSBno+G7d8=">>} 2020-02-07T04:30:30.580-08:00, menelaus_sup:1:info:web start ok(ns_1@cb.local) - Couchbase Server has started on web port 8091 on node 'ns_1@cb.local'. Version: "6.5.0-4960-enterprise". 2020-02-07T04:30:30.816-08:00, mb_master:0:info:message(ns_1@cb.local) - I'm the only node, so I'm the master. 2020-02-07T04:30:30.880-08:00, compat_mode_manager:0:warning:message(ns_1@cb.local) - Changed cluster compat mode from undefined to [6,5] 2020-02-07T04:30:30.937-08:00, memcached_config_mgr:0:info:message(ns_1@cb.local) - Hot-reloaded memcached.json for config change of the following keys: [<<"cli ent_cert_auth">>,
Returning Log-File Content
The following example uses GET /sasl_logs
with the stats
endpoint, to return the contents of the stats.log
log file:
curl -v -X GET -u Administrator:password \ http://10.143.194.101:8091/sasl_logs/stats
If successful, this returns (extensive) output, whose initial section resembles the following:
logs_node (stats.log): ------------------------------- [ns_doctor:debug,2020-02-07T04:30:30.602-08:00,ns_1@cb.local:ns_doctor<0.354.0>:ns_doctor:handle_info:182]Got initial status: [{'ns_1@cb.local', [{last_heard,-576460749154163105}, {now,-576460749183621671}, {active_buckets,[]}, {ready_buckets,[]}, {status_latency,29351}, {outgoing_replications_safeness_level,[]}, {incoming_replications_conf_hashes,[]}, {meminfo, <<"MemTotal: 1016332 kB\nMemFree:
See Also
General information on logging and log files, including the location of all log files, is provided in Manage Logging.