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/**
* Tests that MongoDB sets the WiredTiger table logging settings correctly under different
* circumstances.
*
* @tags: [requires_wiredtiger, requires_journaling]
*/
(function() {
load('jstests/disk/libs/wt_file_helper.js');
// Create a bunch of collections under various database names.
let conn = MongoRunner.runMongod({});
const dbpath = conn.dbpath;
for (let i = 0; i < 10; i++) {
assert.commandWorked(conn.getDB(i.toString()).createCollection(i.toString()));
}
MongoRunner.stopMongod(conn);
/**
* Test 1. The regular case, where no table logging setting modifications are needed.
*/
jsTest.log("Test 1.");
conn = startMongodOnExistingPath(dbpath, {});
checkLog.contains(
conn,
"No table logging settings modifications are required for existing WiredTiger tables. Logging enabled? 1");
MongoRunner.stopMongod(conn);
/**
* Test 2. Repair checks all of the table logging settings.
*/
jsTest.log("Test 2.");
assertRepairSucceeds(dbpath, conn.port, {});
// Cannot use checkLog here as the server is no longer running.
let logContents = rawMongoProgramOutput();
assert(
logContents.indexOf(
"Modifying the table logging settings to 1 for all existing WiredTiger tables. Repair? 1, has previously incomplete table checks? 0") >
0);
/**
* Test 3. Explicitly create the '_wt_table_checks' file to force all of the table logging setting
* modifications to be made.
*/
jsTest.log("Test 3.");
let files = listFiles(dbpath);
for (f in files) {
assert(!files[f].name.includes("_wt_table_checks"));
}
writeFile(dbpath + "/_wt_table_checks", "");
// Cannot skip table logging checks on startup when there are previously incomplete table checks.
conn = startMongodOnExistingPath(dbpath,
{setParameter: "wiredTigerSkipTableLoggingChecksOnStartup=true"});
assert.eq(conn, null);
conn = startMongodOnExistingPath(dbpath, {});
checkLog.contains(
conn,
"Modifying the table logging settings to 1 for all existing WiredTiger tables. Repair? 0, has previously incomplete table checks? 1");
MongoRunner.stopMongod(conn);
/**
* Test 4. Change into a single replica set, which requires all of the table logging settings to be
* updated. But simulate an interruption/crash while starting up during the table logging check
* phase.
*
* The next start up will detect an unclean shutdown causing all of the table logging settings to be
* updated.
*/
jsTest.log("Test 4.");
conn = startMongodOnExistingPath(dbpath, {
replSet: "mySet",
setParameter:
"failpoint.crashAfterUpdatingFirstTableLoggingSettings=" + tojson({"mode": "alwaysOn"})
});
assert(!conn);
// Cannot use checkLog here as the server is no longer running.
logContents = rawMongoProgramOutput();
assert(logContents.indexOf(
"Crashing due to 'crashAfterUpdatingFirstTableLoggingSettings' fail point") > 0);
// The '_wt_table_checks' still exists, so all table logging settings should be modified.
conn = startMongodOnExistingPath(dbpath, {});
checkLog.contains(
conn,
"Modifying the table logging settings to 1 for all existing WiredTiger tables. Repair? 0, has previously incomplete table checks? 1");
MongoRunner.stopMongod(conn);
/**
* Test 5. Change into a single node replica set, which requires all of the table logging settings
* to be updated as the node was successfully started up as a standalone the last time.
*/
jsTest.log("Test 5.");
conn = startMongodOnExistingPath(dbpath, {replSet: "mySet"});
checkLog.contains(
conn,
"Modifying the table logging settings for all existing WiredTiger tables. Logging enabled? 0");
MongoRunner.stopMongod(conn);
/**
* Test 6. Restart as a standalone and skip table logging checks on startup. Verify that restarting
* as a replica set again does not require any table logging modifications.
*/
jsTest.log("Test 6.");
conn = startMongodOnExistingPath(dbpath, {
setParameter: {
wiredTigerSkipTableLoggingChecksOnStartup: true,
logComponentVerbosity: tojson({verbosity: 1})
}
});
// Skipping table logging checks for all existing tables.
checkLog.contains(conn,
"Skipping table logging checks for all existing WiredTiger" +
" tables on startup. wiredTigerSkipTableLoggingChecksOnStartup=1");
// Log level 1 prints each individual table it skips table logging checks for.
checkLog.contains(conn, "Skipping table logging check");
MongoRunner.stopMongod(conn);
conn = startMongodOnExistingPath(dbpath, {replSet: "mySet"});
// No table logging settings modifications are required.
checkLog.contains(conn,
"No table logging settings modifications" +
" are required for existing WiredTiger tables");
MongoRunner.stopMongod(conn);
}());
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