Details
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Bug
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Status: Closed
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Major - P3
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Resolution: Works as Designed
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3.4.0-rc4
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None
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None
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Replication
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ALL
Description
- Start with a 3 node replica set in which all nodes are wiredTiger with journaling disabled
- Make a single write
- Attempt to step down the primary
When attempting the step down command you will get:
backup_test:PRIMARY> rs.stepDown()
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{
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"ok" : 0,
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"errmsg" : "No electable secondaries caught up as of 2016-11-20T21:56:10.466+0000. Please use {force: true} to force node to step down.",
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"code" : 50,
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"codeName" : "ExceededTimeLimit"
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}
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The rs.status() looks as below. Not that all the optimeDurable are undefined:
backup_test:PRIMARY> rs.status()
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{
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"set" : "backup_test",
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"date" : ISODate("2016-11-20T21:55:49.329Z"),
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"myState" : 1,
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"term" : NumberLong(2),
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"heartbeatIntervalMillis" : NumberLong(2000),
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"optimes" : {
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"lastCommittedOpTime" : {
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"ts" : Timestamp(0, 0),
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"t" : NumberLong(-1)
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},
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"appliedOpTime" : {
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"ts" : Timestamp(1479678946, 1),
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"t" : NumberLong(2)
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},
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"durableOpTime" : {
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"ts" : Timestamp(0, 0),
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"t" : NumberLong(-1)
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}
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},
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"members" : [
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{
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"_id" : 0,
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"name" : "cailinmac:27000",
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"health" : 1,
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"state" : 2,
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"stateStr" : "SECONDARY",
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"uptime" : 7,
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"optime" : {
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"ts" : Timestamp(1479678946, 1),
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"t" : NumberLong(2)
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},
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"optimeDurable" : {
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"ts" : Timestamp(1479678888, 1),
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"t" : NumberLong(1)
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},
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"optimeDate" : ISODate("2016-11-20T21:55:46Z"),
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"optimeDurableDate" : ISODate("2016-11-20T21:54:48Z"),
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"lastHeartbeat" : ISODate("2016-11-20T21:55:48.020Z"),
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"lastHeartbeatRecv" : ISODate("2016-11-20T21:55:46.518Z"),
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"pingMs" : NumberLong(0),
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"syncingTo" : "cailinmac:27020",
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"configVersion" : 1
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},
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{
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"_id" : 1,
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"name" : "cailinmac:27010",
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"health" : 1,
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"state" : 1,
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"stateStr" : "PRIMARY",
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"uptime" : 140,
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"optime" : {
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"ts" : Timestamp(1479678946, 1),
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"t" : NumberLong(2)
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},
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"optimeDate" : ISODate("2016-11-20T21:55:46Z"),
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"infoMessage" : "could not find member to sync from",
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"electionTime" : Timestamp(1479678905, 1),
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"electionDate" : ISODate("2016-11-20T21:55:05Z"),
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"configVersion" : 1,
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"self" : true
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},
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{
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"_id" : 2,
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"name" : "cailinmac:27020",
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"health" : 1,
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"state" : 2,
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"stateStr" : "SECONDARY",
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"uptime" : 120,
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"optime" : {
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"ts" : Timestamp(1479678946, 1),
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"t" : NumberLong(2)
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},
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"optimeDurable" : {
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"ts" : Timestamp(0, 0),
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"t" : NumberLong(-1)
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},
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"optimeDate" : ISODate("2016-11-20T21:55:46Z"),
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"optimeDurableDate" : ISODate("1970-01-01T00:00:00Z"),
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"lastHeartbeat" : ISODate("2016-11-20T21:55:47.952Z"),
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"lastHeartbeatRecv" : ISODate("2016-11-20T21:55:48.912Z"),
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"pingMs" : NumberLong(0),
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"syncingTo" : "cailinmac:27010",
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"configVersion" : 1
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}
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],
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"ok" : 1
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}
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Here are the command line options for a member. If I enable journaling, this problem disappears.
backup_test:PRIMARY> db.runCommand({getCmdLineOpts:1})
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{
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"argv" : [
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"mongod",
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"--port=27000",
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"--replSet=backup_test",
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"--dbpath=/Users/cailin/Documents/code/mms/data/db/replica/backup_test/backup_test_0",
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"--logpath=/Users/cailin/Documents/code/mms/data/db/replica/backup_test/backup_test_0/mongodb.log",
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"--logappend",
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"--oplogSize=100",
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"--storageEngine=wiredTiger",
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"--nojournal",
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"--wiredTigerEngineConfigString=cache_size=512MB"
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],
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"parsed" : {
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"net" : {
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"port" : 27000
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},
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"replication" : {
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"oplogSizeMB" : 100,
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"replSet" : "backup_test"
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},
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"storage" : {
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"dbPath" : "/Users/cailin/Documents/code/mms/data/db/replica/backup_test/backup_test_0",
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"engine" : "wiredTiger",
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"journal" : {
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"enabled" : false
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},
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"wiredTiger" : {
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"engineConfig" : {
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"configString" : "cache_size=512MB"
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}
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}
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},
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"systemLog" : {
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"destination" : "file",
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"logAppend" : true,
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"path" : "/Users/cailin/Documents/code/mms/data/db/replica/backup_test/backup_test_0/mongodb.log"
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}
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},
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"ok" : 1
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}
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Attachments
Issue Links
- documents
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SERVER-27217 Allow nopreallocj to be specified in YAML config file
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- Closed
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- related to
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DOCS-9367 summarize use of writeConcernMajorityJournalDefault
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- Closed
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