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Miscellaneous updates to the copying operation to Impala Cluster:

- Assign the WRITE and EXECUTE permissions to the DBs' HDFS-directories, in order to be able to create tables on top of them, in the Impala Cluster.
- Make sure the "copydb" function returns early, when it encounters a fatal error, while respecting the "SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR" config.
This commit is contained in:
Lampros Smyrnaios 2024-05-28 17:51:45 +03:00
parent 15b54a345a
commit e3f28338c1
4 changed files with 88 additions and 36 deletions

View File

@ -72,6 +72,8 @@ function copydb() {
rm -f error.log
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 2
else
return 2
fi
fi
@ -90,19 +92,30 @@ function copydb() {
-pb \
${OCEAN_HDFS_NODE}/user/hive/warehouse/${db}.db ${IMPALA_HDFS_DB_BASE_PATH}
# Check the exit status of the "hadoop distcp" command.
if [ $? -eq 0 ]; then
echo -e "\nSuccessfully copied the files of '${db}'.\n"
if [ $? -eq 0 ]; then # Check the exit status of the "hadoop distcp" command.
echo -e "\nSuccessfully copied the files of '${db}' from Ocean to Impala cluster.\n"
else
echo -e "\n\nERROR: FAILED TO TRANSFER THE FILES OF '${db}', WITH 'hadoop distcp'. GOT EXIT STATUS: $?\n\n"
rm -f error.log
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 3
else
return 3
fi
fi
# In case we ever use this script for a writable DB (using inserts/updates), we should perform the following costly operation as well..
#hdfs dfs -conf ${IMPALA_CONFIG_FILE} -chmod -R 777 ${TEMP_SUBDIR_FULLPATH}/${db}.db
# Give WRITE and EXECUTE permissions to the DBs' directory only, in order to be able to create more tables later, on top of that DB.
hdfs dfs -conf ${IMPALA_CONFIG_FILE} -chmod u+wx ${IMPALA_HDFS_DB_BASE_PATH}/${db}.db
# In case we ever use this script for a writable DB (using inserts/updates), we should perform the costly recursive operation as well, using the "-R" param.
if [ $? -ne 0 ]; then # Check the exit status..
echo -e "\n\nERROR: FAILED TO ASSIGN WRITE AND EXECUTE PERMISSIONS TO THE DIRECTORY OF DB: '${db}'. GOT EXIT STATUS: $?\n\n"
rm -f error.log
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 4
else
return 4
fi
fi
echo -e "\nCreating schema for db: '${db}'\n"
@ -131,7 +144,7 @@ function copydb() {
if [ -z "$CURRENT_PRQ_FILE" ]; then # If there is not parquet-file inside.
echo -e "\nERROR: THE TABLE \"${i}\" HAD NO FILES TO GET THE SCHEMA FROM! IT'S EMPTY!\n\n"
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 4
exit 5
fi
else
impala-shell --user ${HADOOP_USER_NAME} -i ${IMPALA_HOSTNAME} -q "create table ${db}.${i} like parquet '${CURRENT_PRQ_FILE}' stored as parquet;" |& tee error.log
@ -139,7 +152,7 @@ function copydb() {
if [ -n "$log_errors" ]; then
echo -e "\n\nERROR: THERE WAS A PROBLEM WHEN CREATING TABLE '${i}'!\n\n"
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 5
exit 6
fi
fi
fi
@ -185,7 +198,7 @@ function copydb() {
if [[ $new_num_of_views_to_retry -eq $previous_num_of_views_to_retry ]]; then
echo -e "\n\nERROR: THE NUMBER OF VIEWS TO RETRY HAS NOT BEEN REDUCED! THE SCRIPT IS LIKELY GOING TO AN INFINITE-LOOP! EXITING..\n\n"
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 6
exit 7
fi
elif [[ $new_num_of_views_to_retry -gt 0 ]]; then
echo -e "\nTo be retried \"create_view_statements\" (${new_num_of_views_to_retry}):\n\n${all_create_view_statements[@]}\n"
@ -215,7 +228,7 @@ function copydb() {
echo -e "\n\nERROR: 1 OR MORE ENTITIES OF DB '${db}' FAILED TO BE COPIED TO IMPALA CLUSTER!\n\n"
rm -f error.log
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 7
exit 8
fi
fi

View File

@ -72,6 +72,8 @@ function copydb() {
rm -f error.log
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 2
else
return 2
fi
fi
@ -90,19 +92,30 @@ function copydb() {
-pb \
${OCEAN_HDFS_NODE}/user/hive/warehouse/${db}.db ${IMPALA_HDFS_DB_BASE_PATH}
# Check the exit status of the "hadoop distcp" command.
if [ $? -eq 0 ]; then
echo -e "\nSuccessfully copied the files of '${db}'.\n"
if [ $? -eq 0 ]; then # Check the exit status of the "hadoop distcp" command.
echo -e "\nSuccessfully copied the files of '${db}' from Ocean to Impala cluster.\n"
else
echo -e "\n\nERROR: FAILED TO TRANSFER THE FILES OF '${db}', WITH 'hadoop distcp'. GOT EXIT STATUS: $?\n\n"
rm -f error.log
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 3
else
return 3
fi
fi
# In case we ever use this script for a writable DB (using inserts/updates), we should perform the following costly operation as well..
#hdfs dfs -conf ${IMPALA_CONFIG_FILE} -chmod -R 777 ${TEMP_SUBDIR_FULLPATH}/${db}.db
# Give WRITE and EXECUTE permissions to the DBs' directory only, in order to be able to create more tables later, on top of that DB.
hdfs dfs -conf ${IMPALA_CONFIG_FILE} -chmod u+wx ${IMPALA_HDFS_DB_BASE_PATH}/${db}.db
# In case we ever use this script for a writable DB (using inserts/updates), we should perform the costly recursive operation as well, using the "-R" param.
if [ $? -ne 0 ]; then # Check the exit status..
echo -e "\n\nERROR: FAILED TO ASSIGN WRITE AND EXECUTE PERMISSIONS TO THE DIRECTORY OF DB: '${db}'. GOT EXIT STATUS: $?\n\n"
rm -f error.log
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 4
else
return 4
fi
fi
echo -e "\nCreating schema for db: '${db}'\n"
@ -131,7 +144,7 @@ function copydb() {
if [ -z "$CURRENT_PRQ_FILE" ]; then # If there is not parquet-file inside.
echo -e "\nERROR: THE TABLE \"${i}\" HAD NO FILES TO GET THE SCHEMA FROM! IT'S EMPTY!\n\n"
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 4
exit 5
fi
else
impala-shell --user ${HADOOP_USER_NAME} -i ${IMPALA_HOSTNAME} -q "create table ${db}.${i} like parquet '${CURRENT_PRQ_FILE}' stored as parquet;" |& tee error.log
@ -139,7 +152,7 @@ function copydb() {
if [ -n "$log_errors" ]; then
echo -e "\n\nERROR: THERE WAS A PROBLEM WHEN CREATING TABLE '${i}'!\n\n"
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 5
exit 6
fi
fi
fi
@ -185,7 +198,7 @@ function copydb() {
if [[ $new_num_of_views_to_retry -eq $previous_num_of_views_to_retry ]]; then
echo -e "\n\nERROR: THE NUMBER OF VIEWS TO RETRY HAS NOT BEEN REDUCED! THE SCRIPT IS LIKELY GOING TO AN INFINITE-LOOP! EXITING..\n\n"
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 6
exit 7
fi
elif [[ $new_num_of_views_to_retry -gt 0 ]]; then
echo -e "\nTo be retried \"create_view_statements\" (${new_num_of_views_to_retry}):\n\n${all_create_view_statements[@]}\n"
@ -215,7 +228,7 @@ function copydb() {
echo -e "\n\nERROR: 1 OR MORE ENTITIES OF DB '${db}' FAILED TO BE COPIED TO IMPALA CLUSTER!\n\n"
rm -f error.log
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 7
exit 8
fi
fi

View File

@ -72,6 +72,8 @@ function copydb() {
rm -f error.log
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 2
else
return 2
fi
fi
@ -90,19 +92,30 @@ function copydb() {
-pb \
${OCEAN_HDFS_NODE}/user/hive/warehouse/${db}.db ${IMPALA_HDFS_DB_BASE_PATH}
# Check the exit status of the "hadoop distcp" command.
if [ $? -eq 0 ]; then
echo -e "\nSuccessfully copied the files of '${db}'.\n"
if [ $? -eq 0 ]; then # Check the exit status of the "hadoop distcp" command.
echo -e "\nSuccessfully copied the files of '${db}' from Ocean to Impala cluster.\n"
else
echo -e "\n\nERROR: FAILED TO TRANSFER THE FILES OF '${db}', WITH 'hadoop distcp'. GOT EXIT STATUS: $?\n\n"
rm -f error.log
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 3
else
return 3
fi
fi
# In case we ever use this script for a writable DB (using inserts/updates), we should perform the following costly operation as well..
#hdfs dfs -conf ${IMPALA_CONFIG_FILE} -chmod -R 777 ${TEMP_SUBDIR_FULLPATH}/${db}.db
# Give WRITE and EXECUTE permissions to the DBs' directory only, in order to be able to create more tables later, on top of that DB.
hdfs dfs -conf ${IMPALA_CONFIG_FILE} -chmod u+wx ${IMPALA_HDFS_DB_BASE_PATH}/${db}.db
# In case we ever use this script for a writable DB (using inserts/updates), we should perform the costly recursive operation as well, using the "-R" param.
if [ $? -ne 0 ]; then # Check the exit status..
echo -e "\n\nERROR: FAILED TO ASSIGN WRITE AND EXECUTE PERMISSIONS TO THE DIRECTORY OF DB: '${db}'. GOT EXIT STATUS: $?\n\n"
rm -f error.log
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 4
else
return 4
fi
fi
echo -e "\nCreating schema for db: '${db}'\n"
@ -131,7 +144,7 @@ function copydb() {
if [ -z "$CURRENT_PRQ_FILE" ]; then # If there is not parquet-file inside.
echo -e "\nERROR: THE TABLE \"${i}\" HAD NO FILES TO GET THE SCHEMA FROM! IT'S EMPTY!\n\n"
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 4
exit 5
fi
else
impala-shell --user ${HADOOP_USER_NAME} -i ${IMPALA_HOSTNAME} -q "create table ${db}.${i} like parquet '${CURRENT_PRQ_FILE}' stored as parquet;" |& tee error.log
@ -139,7 +152,7 @@ function copydb() {
if [ -n "$log_errors" ]; then
echo -e "\n\nERROR: THERE WAS A PROBLEM WHEN CREATING TABLE '${i}'!\n\n"
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 5
exit 6
fi
fi
fi
@ -185,7 +198,7 @@ function copydb() {
if [[ $new_num_of_views_to_retry -eq $previous_num_of_views_to_retry ]]; then
echo -e "\n\nERROR: THE NUMBER OF VIEWS TO RETRY HAS NOT BEEN REDUCED! THE SCRIPT IS LIKELY GOING TO AN INFINITE-LOOP! EXITING..\n\n"
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 6
exit 7
fi
elif [[ $new_num_of_views_to_retry -gt 0 ]]; then
echo -e "\nTo be retried \"create_view_statements\" (${new_num_of_views_to_retry}):\n\n${all_create_view_statements[@]}\n"
@ -215,7 +228,7 @@ function copydb() {
echo -e "\n\nERROR: 1 OR MORE ENTITIES OF DB '${db}' FAILED TO BE COPIED TO IMPALA CLUSTER!\n\n"
rm -f error.log
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 7
exit 8
fi
fi

View File

@ -74,6 +74,8 @@ function copydb() {
rm -f error.log
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 2
else
return 2
fi
fi
@ -92,19 +94,30 @@ function copydb() {
-pb \
${OCEAN_HDFS_NODE}/user/hive/warehouse/${db}.db ${IMPALA_HDFS_DB_BASE_PATH}
# Check the exit status of the "hadoop distcp" command.
if [ $? -eq 0 ]; then
echo -e "\nSuccessfully copied the files of '${db}'.\n"
if [ $? -eq 0 ]; then # Check the exit status of the "hadoop distcp" command.
echo -e "\nSuccessfully copied the files of '${db}' from Ocean to Impala cluster.\n"
else
echo -e "\n\nERROR: FAILED TO TRANSFER THE FILES OF '${db}', WITH 'hadoop distcp'. GOT EXIT STATUS: $?\n\n"
rm -f error.log
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 3
else
return 3
fi
fi
# In case we ever use this script for a writable DB (using inserts/updates), we should perform the following costly operation as well..
#hdfs dfs -conf ${IMPALA_CONFIG_FILE} -chmod -R 777 ${TEMP_SUBDIR_FULLPATH}/${db}.db
# Give WRITE and EXECUTE permissions to the DBs' directory only, in order to be able to create more tables later, on top of that DB.
hdfs dfs -conf ${IMPALA_CONFIG_FILE} -chmod u+wx ${IMPALA_HDFS_DB_BASE_PATH}/${db}.db
# In case we ever use this script for a writable DB (using inserts/updates), we should perform the costly recursive operation as well, using the "-R" param.
if [ $? -ne 0 ]; then # Check the exit status..
echo -e "\n\nERROR: FAILED TO ASSIGN WRITE AND EXECUTE PERMISSIONS TO THE DIRECTORY OF DB: '${db}'. GOT EXIT STATUS: $?\n\n"
rm -f error.log
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 4
else
return 4
fi
fi
echo -e "\nCreating schema for db: '${db}'\n"
@ -133,7 +146,7 @@ function copydb() {
if [ -z "$CURRENT_PRQ_FILE" ]; then # If there is not parquet-file inside.
echo -e "\nERROR: THE TABLE \"${i}\" HAD NO FILES TO GET THE SCHEMA FROM! IT'S EMPTY!\n\n"
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 4
exit 5
fi
else
impala-shell --user ${HADOOP_USER_NAME} -i ${IMPALA_HOSTNAME} -q "create table ${db}.${i} like parquet '${CURRENT_PRQ_FILE}' stored as parquet;" |& tee error.log
@ -141,7 +154,7 @@ function copydb() {
if [ -n "$log_errors" ]; then
echo -e "\n\nERROR: THERE WAS A PROBLEM WHEN CREATING TABLE '${i}'!\n\n"
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 5
exit 6
fi
fi
fi
@ -187,7 +200,7 @@ function copydb() {
if [[ $new_num_of_views_to_retry -eq $previous_num_of_views_to_retry ]]; then
echo -e "\n\nERROR: THE NUMBER OF VIEWS TO RETRY HAS NOT BEEN REDUCED! THE SCRIPT IS LIKELY GOING TO AN INFINITE-LOOP! EXITING..\n\n"
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 6
exit 7
fi
elif [[ $new_num_of_views_to_retry -gt 0 ]]; then
echo -e "\nTo be retried \"create_view_statements\" (${new_num_of_views_to_retry}):\n\n${all_create_view_statements[@]}\n"
@ -217,7 +230,7 @@ function copydb() {
echo -e "\n\nERROR: 1 OR MORE ENTITIES OF DB '${db}' FAILED TO BE COPIED TO IMPALA CLUSTER!\n\n"
rm -f error.log
if [[ SHOULD_EXIT_WHOLE_SCRIPT_UPON_ERROR -eq 1 ]]; then
exit 7
exit 8
fi
fi