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Merge "create/remove tmp_dir in monogdb-node code"
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jobs/mongodb_node_ng/templates/create_mongodb_tmp_dir.erb
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,160 @@ | ||
| #!/bin/bash | ||
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| LOG_DIR=/var/vcap/sys/log/mongodb_node | ||
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| mkdir -p $LOG_DIR | ||
| log_echo() { | ||
| echo "`date` $1" >> $LOG_DIR/tmp_dir_ctl.log | ||
| } | ||
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| create_tmp_file() { | ||
| size=$1 | ||
| file_path=$2 | ||
| /usr/bin/truncate -s ${size}M ${file_path} | ||
| if [ ! $? -eq 0 ]; then | ||
| log_echo "ERROR: fail to create the loop file for mongodb tmp directory" | ||
| # delete the incomplete file | ||
| rm -rf $file_path | ||
| exit 1 | ||
| else | ||
| chmod 0700 $file_path | ||
| fi | ||
| } | ||
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| mongodb_tmp_in=/var/vcap/store | ||
| mongodb_tmp_loop_file="$mongodb_tmp_in/mongodb_tmp_loop" | ||
| mongodb_tmp_dir="/var/vcap/store/tmp_dir" | ||
| # unit of size should be MB, default size is 10GB | ||
| mongodb_tmp_size=<%= properties.mongodb_node.max_tmp || 10240 %> | ||
| # greedy_level, recreate files and directories if possible, may delete the file and direcotry with the same names or, just report | ||
| greedy_level=<%= properties.mongodb_node.tmp_greedy_level || 1 %> | ||
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| case $1 in | ||
| create) | ||
| will_create_file=0 | ||
| will_setup_loop=0 | ||
| will_create_dir=0 | ||
| # check whether the mongodb_tmp_loop has been created, if not, try to create it | ||
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| if [ ! -f "$mongodb_tmp_loop_file" ]; then | ||
| create_tmp_file $mongodb_tmp_size $mongodb_tmp_loop_file | ||
| fi | ||
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| size=`stat -c %s $mongodb_tmp_loop_file` | ||
| expect_size=`expr $mongodb_tmp_size \* 1024 \* 1024` | ||
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| if [ ! "$size" = "$expect_size" ]; then | ||
| if [ $greedy_level -eq 0 ]; then | ||
| # graceful, just notify | ||
| log_echo "ERROR: there is a tmp loop file which has different size" | ||
| exit 1 | ||
| else | ||
| # not graceful, will delete the old file and recreate a new one if possible | ||
| will_create_file=1 | ||
| fi | ||
| fi | ||
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| ret=`losetup -a | grep "$mongodb_tmp_loop_file"` | ||
| if [ ! -z "$ret" ]; then | ||
| loop_dev=`echo "$ret" | cut -d: -f1` | ||
| if [ -d "$mongodb_tmp_dir" ]; then | ||
| check_mount=`mount -l | grep "$loop_dev" | grep "$mongodb_tmp_dir"` | ||
| if [ ! -z "$check_mount" ]; then | ||
| if [ $will_create_file -eq 0 ]; then | ||
| # usually, starting mongodb will come here | ||
| chown vcap $mongodb_tmp_dir | ||
| exit 0 | ||
| fi | ||
| else | ||
| if [ $greedy_level -eq 0]; then | ||
| log_echo "ERROR: $mongodb_tmp_dir exists but not mounted to $loop_dev" | ||
| exit 1 | ||
| else | ||
| # must recreate the directory for mounting | ||
| will_create_dir=1 | ||
| fi | ||
| fi | ||
| else | ||
| # must create a new directory for mounting | ||
| will_create_dir=1 | ||
| fi | ||
| else | ||
| loop_dev=`losetup -f` | ||
| if [ $? -ne 0 ]; then | ||
| log_echo "ERROR: fail to get one free loop device" | ||
| exit 1 | ||
| fi | ||
| will_setup_loop=1 | ||
| if [ -d "$mongodb_tmp_dir" ]; then | ||
| if [ $greedy_level -eq 0]; then | ||
| log_echo "ERROR: $mongodb_tmp_dir exists but not mounted to the new loop device: $loop_dev" | ||
| exit 1 | ||
| else | ||
| # must recreate the directory for mounting | ||
| will_create_dir=1 | ||
| fi | ||
| else | ||
| # must create a new directory for mounting | ||
| will_create_dir=1 | ||
| fi | ||
| fi | ||
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| if [ $will_create_file -eq 1 ]; then | ||
| # delete the old file | ||
| umount -d $mongodb_tmp_dir | ||
| rm -rf $mongodb_tmp_dir | ||
| losetup -d $loop_dev | ||
| rm -rf $mongodb_tmp_loop_file | ||
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| create_tmp_file $mongodb_tmp_size $mongodb_tmp_loop_file | ||
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| will_setup_loop=1 | ||
| will_create_dir=1 | ||
| fi | ||
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| if [ $will_setup_loop -eq 1 ]; then | ||
| losetup $loop_dev $mongodb_tmp_loop_file | ||
| if [ $? -ne 0 ]; then | ||
| log_echo "ERROR: fail to bind the loop device with the loop file" | ||
| exit 1 | ||
| fi | ||
| mke2fs -t ext4 $loop_dev | ||
| if [ $? -ne 0 ]; then | ||
| log_echo "ERROR: fail to make ext4 filesystem" | ||
| exit 1 | ||
| fi | ||
| fi | ||
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| if [ $will_create_dir -eq 1 ]; then | ||
| umount -d $mongodb_tmp_dir | ||
| mkdir -p $mongodb_tmp_dir | ||
| mount -t ext4 $loop_dev $mongodb_tmp_dir | ||
| if [ $? -ne 0 ]; then | ||
| log_echo "ERROR: fail to mount $loop_dev to $mongodb_tmp_dir" | ||
| exit 1 | ||
| fi | ||
| fi | ||
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| chown $SUDO_USER $mongodb_tmp_dir | ||
| ;; | ||
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| remove) | ||
| ret=$(mountpoint "$mongodb_tmp_dir") | ||
| if [ $? -eq "0" ]; then | ||
| ret=$(umount -d $mongodb_tmp_dir 2>&1) | ||
| if [ $? -eq "0" ]; then | ||
| log_echo "successfully umount $mongodb_tmp_dir" | ||
| else | ||
| log_echo "failed to umount $mongodb_tmp_dir: $ret" | ||
| fi | ||
| fi | ||
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| ;; | ||
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| *) | ||
| echo "Usage: $0 {create|remove}" | ||
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| ;; | ||
| esac |
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