Timothy Farkas created DRILL-6380:
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Summary: Mongo db storage plugin tests can hang on jenkins.
Key: DRILL-6380
URL: https://issues.apache.org/jira/browse/DRILL-6380
Project: Apache Drill
Issue Type: Bug
Reporter: Timothy Farkas
Assignee: Timothy Farkas
When running on our Jenkins server the mongodb tests hang because the Config servers take
up to 5 seconds to process each request (see *Error 2*). This causes the tests to never finish
within a reasonable span of time. Searching online people run into this issue when mixing
versions of mongo db, but that is not happening in our tests. A possible cause is *Error 1*
which seems to indicate that the mongo db config servers are not completely initialized since
the config servers should have a lockping document when starting up.
*Error 1*
{code}
[mongod output] 2018-05-01T23:38:47.468-0700 I COMMAND [replSetDistLockPinger] command config.lockpings
command: findAndModify { findAndModify: "lockpings", query: { _id: "ConfigServer" }, update:
{ $set: { ping: new Date(1525243123413) } }, upsert: true, writeConcern: { w: "majority",
wtimeout: 15000 } } planSummary: IDHACK update: { $set: { ping: new Date(1525243123413) }
} keysExamined:0 docsExamined:0 nMatched:0 nModified:0 upsert:1 keysInserted:2 numYields:0
reslen:198 locks:{ Global: { acquireCount: { r: 2, w: 2 } }, Database: { acquireCount: { w:
2 } }, Collection: { acquireCount: { w: 1 } }, Metadata: { acquireCount: { w: 1 } }, oplog:
{ acquireCount: { w: 1 } } } protocol:op_query 4055ms
[mongod output] 2018-05-01T23:38:47.469-0700 W SHARDING [replSetDistLockPinger] pinging failed
for distributed lock pinger :: caused by :: LockStateChangeFailed: findAndModify query predicate
didn't match any lock document
[mongod output] 2018-05-01T23:38:47.498-0700 I SHARDING [Balancer] lock 'balancer' successfully
forced
[mongod output] 2018-05-01T23:38:47.498-0700 I SHARDING [Balancer] distributed lock 'balancer'
acquired, ts : 5ae95cd5d1023488104e6282
[mongod output] 2018-05-01T23:38:47.498-0700 I SHARDING [Balancer] CSRS balancer thread is
recovering
[mongod output] 2018-05-01T23:38:47.498-0700 I SHARDING [Balancer] CSRS balancer thread is
recovered
[mongod output] 2018-05-01T23:38:48.056-0700 I NETWORK [thread2] connection accepted from
127.0.0.1:50244 #10 (7 connections now open)
{code}
*Error 2*
{code}
[mongod output] 2018-05-01T23:39:37.690-0700 I COMMAND [conn7] command config.settings command:
find { find: "settings", filter: { _id: "chunksize" }, readConcern: { level: "majority", afterOpTime:
{ ts: Timestamp 1525243172000|1, t: 1 } }, limit: 1, maxTimeMS: 30000 } planSummary: EOF keysExamined:0
docsExamined:0 cursorExhausted:1 numYields:0 nreturned:0 reslen:354 locks:{ Global: { acquireCount:
{ r: 2 } }, Database: { acquireCount: { r: 1 } }, Collection: { acquireCount: { r: 1 } } }
protocol:op_command 4988ms
{code}
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