jstests/libs/override_methods/fail_unclean_shutdown_incompatible_commands.js


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/**
 * This override prevents running commands that use the WiredTiger size storer. Because the size
 * storer is only updated periodically, commands that use it after an unclean shutdown could return
 * inaccurate results.
 */
(function() {
"use strict";

load("jstests/libs/override_methods/override_helpers.js");

function runCommandFailUncleanShutdownIncompatibleCommands(
    conn, dbName, commandName, commandObj, func, makeFuncArgs) {
    if (typeof commandObj !== "object" || commandObj === null) {
        return func.apply(conn, makeFuncArgs(commandObj));
    }

    // If the command is in a wrapped form, then we look for the actual command object inside
    // the query/$query object.
    let commandObjUnwrapped = commandObj;
    if (commandName === "query" || commandName === "$query") {
        commandObjUnwrapped = commandObj[commandName];
        commandName = Object.keys(commandObjUnwrapped)[0];
    }

    if (commandName === "count" &&
        (!commandObjUnwrapped.hasOwnProperty("query") ||
         Object.keys(commandObjUnwrapped["query"]).length === 0)) {
        throw new Error("Cowardly fail if fastcount is run with a mongod that had an unclean" +
                        " shutdown: " + tojson(commandObjUnwrapped));
    }

    if (commandName === "dataSize" && !commandObjUnwrapped.hasOwnProperty("min") &&
        !commandObjUnwrapped.hasOwnProperty("max")) {
        throw new Error("Cowardly fail if unbounded dataSize is run with a mongod that had an" +
                        " unclean shutdown: " + tojson(commandObjUnwrapped));
    }

    if (commandName === "collStats" || commandName === "dbStats") {
        throw new Error("Cowardly fail if " + commandName + " is run with a mongod that had" +
                        " an unclean shutdown: " + tojson(commandObjUnwrapped));
    }

    return func.apply(conn, makeFuncArgs(commandObj));
}

OverrideHelpers.prependOverrideInParallelShell(
    "jstests/libs/override_methods/fail_unclean_shutdown_incompatible_commands.js");

OverrideHelpers.overrideRunCommand(runCommandFailUncleanShutdownIncompatibleCommands);
})();