Pull in script change from #4263.

Author: Kami

scripts/travis/install-and-run-mongodb.sh

@@ -1,33 +1,56 @@
 #!/usr/bin/env bash
 
 # Script which installs versions of MongoDB specified using an environment variable
-
-if [ ! "${MONGODB}" ]; then
-    echo "MONGODB environment variable not set"
+if [ ! "${MONGODB_VERSION}" ]; then
+    echo "MONGODB_VERSION environment variable not set."
     exit 2
 fi
 
 # Note: MongoDB 2.4 and 2.6 don't work with ramdisk since they don't work with
 # small files and require at least 3 GB of space
-if [ ${MONGODB} = '2.4.9' ] || [ ${MONGODB} = '2.6.12' ]; then
+if [ "${MONGODB_VERSION}" = '2.4.9' ] || [ "${MONGODB_VERSION}" = '2.6.12' ]; then
     DATA_DIR=/tmp/mongodbdata
 else
     DATA_DIR=/mnt/ramdisk/mongodb
 fi
 
-wget http://fastdl.mongodb.org/linux/mongodb-linux-x86_64-${MONGODB}.tgz -O /tmp/mongodb.tgz
-tar -xvf /tmp/mongodb.tgz
+DATA_DIR=/tmp/mongodbdata
+MONGODB_DIR=/tmp/mongodb
+
 mkdir -p ${DATA_DIR}
-echo "Starting MongoDB v${MONGODB}"
-${PWD}/mongodb-linux-x86_64-${MONGODB}/bin/mongod --nojournal --journalCommitInterval 500 \
-    --syncdelay 0 --dbpath ${DATA_DIR} --bind_ip 127.0.0.1 &> /tmp/mongodb.log &
-EXIT_CODE=$?
+mkdir -p ${MONGODB_DIR}
+
+DOWNLOAD_URL="http://fastdl.mongodb.org/linux/mongodb-linux-x86_64-${MONGODB_VERSION}.tgz"
+
+echo "Downloading MongoDB ${MONGODB_VERSION} from ${DOWNLOAD_URL}"
+wget -q ${DOWNLOAD_URL} -O /tmp/mongodb.tgz
+tar -xvf /tmp/mongodb.tgz -C ${MONGODB_DIR} --strip=1
+
+echo "Symlinking mongo shell binary to /usr/local/bin"
+
+# Symlink latest mongodb shell
+sudo ln -sf ${MONGODB_DIR}/bin/mongo /usr/local/bin/mongo
+sudo ln -sf ${MONGODB_DIR}/bin/mongo /usr/bin/mongo
+
+echo "Starting MongoDB v${MONGODB_VERSION}"
+# Note: We use --notablescan option to detected missing indexes early. When this
+# option is enabled, queries which result in table scan (which usually means a
+# missing index or a bad query) are not allowed and result in a failed test.
+#--wiredTigerStatisticsLogDelaySecs 0 --noIndexBuildRetry --noscripting --notablescan \
+${MONGODB_DIR}/bin/mongod --nojournal --journalCommitInterval 500 --syncdelay 0 \
+    --wiredTigerStatisticsLogDelaySecs 0 --noIndexBuildRetry --noscripting \
+    --dbpath ${DATA_DIR} --bind_ip 127.0.0.1 &> /tmp/mongodb.log &
+MONGODB_PID=$!
+
+# Give process some time to start up
 sleep 5
 
-if [ ${EXIT_CODE} -ne 0 ]; then
+if ps -p ${MONGODB_PID} > /dev/null; then
+    echo "MongoDB successfuly started"
+    tail -30 /tmp/mongodb.log
+    exit 0
+else
     echo "Failed to start MongoDB"
     tail -30 /tmp/mongodb.log
     exit 1
 fi
-
-tail -30 /tmp/mongodb.log