def save_results_hive_table(request, query_history_id): """ Save the results of a query to a hive table. Rerun the query. """ response = {'status': 0, 'message': ''} query_history = authorized_get_query_history(request, query_history_id, must_exist=True) server_id, state = _get_query_handle_and_state(query_history) query_history.save_state(state) error_msg, log = None, None if request.method != 'POST': response['message'] = _('A POST request is required.') else: if not query_history.is_success(): response['message'] = _('This query is %(state)s. Results unavailable.') % {'state': state} response['status'] = -1 return JsonResponse(response) db = dbms.get(request.user, query_history.get_query_server_config()) database = query_history.design.get_design().query.get('database', 'default') form = beeswax.forms.SaveResultsTableForm({ 'target_table': request.POST.get('table') }, db=db, database=database) if form.is_valid(): try: handle, state = _get_query_handle_and_state(query_history) result_meta = db.get_results_metadata(handle) except Exception as ex: response['message'] = _('Cannot find query handle and state: %s') % str(query_history) response['status'] = -2 return JsonResponse(response) try: query_history = db.create_table_as_a_select( request, query_history, form.target_database, form.cleaned_data['target_table'], result_meta ) response['id'] = query_history.id response['query'] = query_history.query response['type'] = 'hive-table' response['path'] = form.cleaned_data['target_table'] response['success_url'] = reverse( 'metastore:describe_table', kwargs={'database': form.target_database, 'table': form.cleaned_data['target_table']} ) response['watch_url'] = reverse(get_app_name(request) + ':api_watch_query_refresh_json', kwargs={'id': query_history.id}) except Exception as ex: error_msg, log = expand_exception(ex, db) response['message'] = _('The result could not be saved: %s.') % error_msg response['status'] = -3 else: response['status'] = 1 response['message'] = '\n'.join(list(form.errors.values())[0]) return JsonResponse(response)
def save_results_hdfs_file(request, query_history_id): """ Save the results of a query to an HDFS file. Do not rerun the query. """ response = {'status': 0, 'message': ''} query_history = authorized_get_query_history(request, query_history_id, must_exist=True) server_id, state = _get_query_handle_and_state(query_history) query_history.save_state(state) error_msg, log = None, None if request.method != 'POST': response['message'] = _('A POST request is required.') else: if not query_history.is_success(): response['message'] = _('This query is %(state)s. Results unavailable.') % {'state': state} response['status'] = -1 return JsonResponse(response) db = dbms.get(request.user, query_history.get_query_server_config()) form = beeswax.forms.SaveResultsFileForm({ 'target_file': request.POST.get('path'), 'overwrite': request.POST.get('overwrite', False), }) if form.is_valid(): target_file = form.cleaned_data['target_file'] overwrite = form.cleaned_data['overwrite'] try: handle, state = _get_query_handle_and_state(query_history) except Exception, ex: response['message'] = _('Cannot find query handle and state: %s') % str(query_history) response['status'] = -2 return JsonResponse(response) try: if overwrite and request.fs.exists(target_file): if request.fs.isfile(target_file): request.fs.do_as_user(request.user.username, request.fs.rmtree, target_file) else: raise PopupException(_("The target path is a directory")) upload(target_file, handle, request.user, db, request.fs) response['type'] = 'hdfs-file' response['id'] = query_history.id response['query'] = query_history.query response['path'] = target_file response['success_url'] = '/filebrowser/view=%s' % target_file response['watch_url'] = reverse(get_app_name(request) + ':api_watch_query_refresh_json', kwargs={'id': query_history.id}) except Exception, ex: error_msg, log = expand_exception(ex, db) response['message'] = _('The result could not be saved: %s.') % error_msg response['status'] = -3
def save_results_hdfs_file(request, query_history_id): """ Save the results of a query to an HDFS file. Do not rerun the query. """ response = {'status': 0, 'message': ''} query_history = authorized_get_query_history(request, query_history_id, must_exist=True) server_id, state = _get_query_handle_and_state(query_history) query_history.save_state(state) error_msg, log = None, None if request.method != 'POST': response['message'] = _('A POST request is required.') else: if not query_history.is_success(): response['message'] = _('This query is %(state)s. Results unavailable.') % {'state': state} response['status'] = -1 return JsonResponse(response) db = dbms.get(request.user, query_history.get_query_server_config()) form = beeswax.forms.SaveResultsFileForm({ 'target_file': request.POST.get('path'), 'overwrite': request.POST.get('overwrite', False), }) if form.is_valid(): target_file = form.cleaned_data['target_file'] overwrite = form.cleaned_data['overwrite'] try: handle, state = _get_query_handle_and_state(query_history) except Exception, ex: response['message'] = _('Cannot find query handle and state: %s') % str(query_history) response['status'] = -2 return JsonResponse(response) try: if overwrite and request.fs.exists(target_file): if request.fs.isfile(target_file): request.fs.do_as_user(request.user.username, request.fs.rmtree, target_file) else: raise PopupException(_("The target path is a directory")) upload(target_file, handle, request.user, db, request.fs) response['type'] = 'hdfs-file' response['id'] = query_history.id response['query'] = query_history.query response['path'] = target_file response['success_url'] = '/filebrowser/view=%s' % target_file response['watch_url'] = reverse(get_app_name(request) + ':api_watch_query_refresh_json', kwargs={'id': query_history.id}) except Exception, ex: error_msg, log = expand_exception(ex, db) response['message'] = _('The result could not be saved: %s.') % error_msg response['status'] = -3
def watch_query_refresh_json(request, id): query_history = authorized_get_query_history(request, id, must_exist=True) db = dbms.get(request.user, query_history.get_query_server_config()) if not request.POST.get('next'): # We need this as multi query would fail as current query is closed handle, state = _get_query_handle_and_state(query_history) query_history.save_state(state) # Go to next statement if asked to continue or when a statement with no dataset finished. try: if request.POST.get('next') or (not query_history.is_finished() and query_history.is_success() and not query_history.has_results): close_operation(request, id) query_history = db.execute_next_statement(query_history, request.POST.get('query-query')) handle, state = _get_query_handle_and_state(query_history) except QueryServerException as ex: raise ex except Exception as ex: LOG.exception(ex) handle, state = _get_query_handle_and_state(query_history) try: start_over = request.POST.get('log-start-over') == 'true' log = db.get_log(handle, start_over=start_over) except Exception as ex: log = str(ex) jobs = parse_out_jobs(log) job_urls = massage_job_urls_for_json(jobs) result = { 'status': -1, 'log': log, 'jobs': jobs, 'jobUrls': job_urls, 'isSuccess': query_history.is_success(), 'isFailure': query_history.is_failure(), 'id': id, 'statement': query_history.get_current_statement(), 'watch_url': reverse(get_app_name(request) + ':api_watch_query_refresh_json', kwargs={'id': query_history.id}), 'oldLogsApi': USE_GET_LOG_API.get() } # Run time error if query_history.is_failure(): res = db.get_operation_status(handle) if query_history.is_canceled(res): result['status'] = 0 elif hasattr(res, 'errorMessage') and res.errorMessage: result['message'] = res.errorMessage else: result['message'] = _('Bad status for request %s:\n%s') % (id, res) else: result['status'] = 0 return JsonResponse(result)
def cancel_query(request, query_id): response = {'status': -1, 'message': ''} if request.method != 'POST': response['message'] = _('A POST request is required.') else: try: query_history = authorized_get_history(request, query_id, must_exist=True) db = dbms.get(request.user, query_history.get_query_server_config()) db.cancel_operation(query_history.get_handle()) _get_query_handle_and_state(query_history) response['status'] = 0 except Exception, e: response['message'] = unicode(e)
def cancel_query(request, query_history_id): response = {'status': -1, 'message': ''} if request.method != 'POST': response['message'] = _('A POST request is required.') else: try: query_history = authorized_get_query_history(request, query_history_id, must_exist=True) db = dbms.get(request.user, query_history.get_query_server_config()) db.cancel_operation(query_history.get_handle()) _get_query_handle_and_state(query_history) response['status'] = 0 except Exception, e: response['message'] = unicode(e)
def watch_query_refresh_json(request, id): query_history = authorized_get_query_history(request, id, must_exist=True) db = dbms.get(request.user, query_history.get_query_server_config()) if not request.POST.get('next'): # We need this as multi query would fail as current query is closed handle, state = _get_query_handle_and_state(query_history) query_history.save_state(state) # Go to next statement if asked to continue or when a statement with no dataset finished. try: if request.POST.get('next') or (not query_history.is_finished() and query_history.is_success() and not query_history.has_results): query_history = db.execute_next_statement(query_history, request.POST.get('query-query')) handle, state = _get_query_handle_and_state(query_history) except QueryServerException, ex: raise ex
def watch_query_refresh_json(request, id): query_history = authorized_get_query_history(request, id, must_exist=True) db = dbms.get(request.user, query_history.get_query_server_config()) if not request.POST.get('next'): # We need this as multi query would fail as current query is closed handle, state = _get_query_handle_and_state(query_history) query_history.save_state(state) # Go to next statement if asked to continue or when a statement with no dataset finished. try: if request.POST.get('next') or (not query_history.is_finished() and query_history.is_success() and not query_history.has_results): query_history = db.execute_next_statement(query_history, request.POST.get('query-query')) handle, state = _get_query_handle_and_state(query_history) except QueryServerException, ex: raise ex
def save_results_hive_table(request, query_history_id): """ Save the results of a query to a hive table. Rerun the query. """ response = {'status': 0, 'message': ''} query_history = authorized_get_query_history(request, query_history_id, must_exist=True) server_id, state = _get_query_handle_and_state(query_history) query_history.save_state(state) error_msg, log = None, None if request.method != 'POST': response['message'] = _('A POST request is required.') else: if not query_history.is_success(): response['message'] = _('This query is %(state)s. Results unavailable.') % {'state': state} response['status'] = -1 return JsonResponse(response) db = dbms.get(request.user, query_history.get_query_server_config()) database = query_history.design.get_design().query.get('database', 'default') form = beeswax.forms.SaveResultsTableForm({ 'target_table': request.POST.get('table') }, db=db, database=database) if form.is_valid(): try: handle, state = _get_query_handle_and_state(query_history) result_meta = db.get_results_metadata(handle) except Exception, ex: response['message'] = _('Cannot find query handle and state: %s') % str(query_history) response['status'] = -2 return JsonResponse(response) try: query_history = db.create_table_as_a_select(request, query_history, form.target_database, form.cleaned_data['target_table'], result_meta) response['id'] = query_history.id response['query'] = query_history.query response['type'] = 'hive-table' response['path'] = form.cleaned_data['target_table'] response['success_url'] = reverse('metastore:describe_table', kwargs={'database': form.target_database, 'table': form.cleaned_data['target_table']}) response['watch_url'] = reverse(get_app_name(request) + ':api_watch_query_refresh_json', kwargs={'id': query_history.id}) except Exception, ex: error_msg, log = expand_exception(ex, db) response['message'] = _('The result could not be saved: %s.') % error_msg response['status'] = -3
def save_results_hdfs_directory(request, query_history_id): """ Save the results of a query to an HDFS directory. Rerun the query. """ response = {'status': 0, 'message': ''} query_history = authorized_get_query_history(request, query_history_id, must_exist=True) server_id, state = _get_query_handle_and_state(query_history) query_history.save_state(state) error_msg, log = None, None if request.method != 'POST': response['message'] = _('A POST request is required.') else: if not query_history.is_success(): response['message'] = _( 'This query is %(state)s. Results unavailable.') % { 'state': state } response['status'] = -1 return JsonResponse(response) db = dbms.get(request.user, query_history.get_query_server_config()) form = beeswax.forms.SaveResultsDirectoryForm( {'target_dir': request.POST.get('path')}, fs=request.fs) if form.is_valid(): target_dir = request.POST.get('path') try: response['type'] = 'hdfs-dir' response['id'] = query_history.id response['query'] = query_history.query response['path'] = target_dir response['success_url'] = '/filebrowser/view=%s' % target_dir query_history = db.insert_query_into_directory( query_history, target_dir) response['watch_url'] = reverse( get_app_name(request) + ':api_watch_query_refresh_json', kwargs={'id': query_history.id}) except Exception as ex: error_msg, log = expand_exception(ex, db) response['message'] = _( 'The result could not be saved: %s.') % error_msg response['status'] = -3 else: response['status'] = 1 response['errors'] = form.errors return JsonResponse(response)
def watch_query_refresh_json(request, id): query_history = authorized_get_history(request, id, must_exist=True) db = dbms.get(request.user, query_history.get_query_server_config()) handle, state = _get_query_handle_and_state(query_history) query_history.save_state(state) # Show popup message if error, should be better in error tab instead and merged into the result response below if query_history.is_failure(): res = db.get_operation_status(handle) if hasattr(res, 'errorMessage') and res.errorMessage: message = res.errorMessage else: message = '' raise QueryServerException(Exception('Bad status for request %s:\n%s' % (id, res)), message=message) # Multi query if more statements try: if not query_history.is_finished() and query_history.is_success() and not query_history.has_results: db.execute_next_statement(query_history) handle, state = _get_query_handle_and_state(query_history) except Exception, ex: LOG.exception(ex) handle, state = _get_query_handle_and_state(query_history)
def save_results_hdfs_directory(request, query_history_id): """ Save the results of a query to an HDFS directory. Rerun the query. """ response = {'status': 0, 'message': ''} query_history = authorized_get_query_history(request, query_history_id, must_exist=True) server_id, state = _get_query_handle_and_state(query_history) query_history.save_state(state) error_msg, log = None, None if request.method != 'POST': response['message'] = _('A POST request is required.') else: if not query_history.is_success(): response['message'] = _('This query is %(state)s. Results unavailable.') % {'state': state} response['status'] = -1 return JsonResponse(response) db = dbms.get(request.user, query_history.get_query_server_config()) form = beeswax.forms.SaveResultsDirectoryForm({ 'target_dir': request.POST.get('path') }, fs=request.fs) if form.is_valid(): target_dir = request.POST.get('path') try: response['type'] = 'hdfs-dir' response['id'] = query_history.id response['query'] = query_history.query response['path'] = target_dir response['success_url'] = '/filebrowser/view=%s' % target_dir query_history = db.insert_query_into_directory(query_history, target_dir) response['watch_url'] = reverse(get_app_name(request) + ':api_watch_query_refresh_json', kwargs={'id': query_history.id}) except Exception, ex: error_msg, log = expand_exception(ex, db) response['message'] = _('The result could not be saved: %s.') % error_msg response['status'] = -3 else:
def watch_query(request, id, download_format=None): """ Wait for the query to finish and (by default) displays the results of query id. It understands the optional GET params: on_success_url If given, it will be displayed when the query is successfully finished. Otherwise, it will display the view query results page by default. context A string of "name:data" that describes the context that generated this query result. It may be: - "table":"<table_name>" - "design":<design_id> All other GET params will be passed to on_success_url (if present). """ # Coerce types; manage arguments query_history = authorized_get_history(request, id, must_exist=True) db = dbms.get(request.user, query_history.get_query_server_config()) # GET param: context. context_param = request.GET.get('context', '') # GET param: on_success_url. Default to view_results if request.session.get( 'dl_status', False) == False and download_format in common.DL_FORMATS: results_url = urlresolvers.reverse( get_app_name(request) + ':execute_query') else: results_url = urlresolvers.reverse(get_app_name(request) + ':view_results', kwargs={ 'id': id, 'first_row': 0 }) if request.GET.get('download', ''): results_url += '?download=true' on_success_url = request.GET.get('on_success_url') if not on_success_url: on_success_url = results_url # Go to next statement if asked to continue or when a statement with no dataset finished. if request.method == 'POST' or (not query_history.is_finished() and query_history.is_success() and not query_history.has_results): try: query_history = db.execute_next_statement(query_history) except Exception: pass # Check query state handle, state = _get_query_handle_and_state(query_history) query_history.save_state(state) if query_history.is_failure(): # When we fetch, Beeswax server will throw us a BeeswaxException, which has the # log we want to display. return format_preserving_redirect(request, results_url, request.GET) elif query_history.is_finished() or (query_history.is_success() and query_history.has_results): if request.session.get('dl_status', False): # BUG-20020 on_success_url = urlresolvers.reverse( get_app_name(request) + ':download', kwargs=dict(id=str(id), format=download_format)) _clean_session(request) return format_preserving_redirect(request, on_success_url, request.GET) # Still running log = db.get_log(handle) # Keep waiting # - Translate context into something more meaningful (type, data) query_context = _parse_query_context(context_param) return render( 'watch_wait.mako', request, { 'query': query_history, 'fwd_params': request.GET.urlencode(), 'log': log, 'hadoop_jobs': _parse_out_hadoop_jobs(log)[0], 'query_context': query_context, 'download_format': download_format, ## ExpV })
def watch_query(request, id, download_format=None): """ Wait for the query to finish and (by default) displays the results of query id. It understands the optional GET params: on_success_url If given, it will be displayed when the query is successfully finished. Otherwise, it will display the view query results page by default. context A string of "name:data" that describes the context that generated this query result. It may be: - "table":"<table_name>" - "design":<design_id> All other GET params will be passed to on_success_url (if present). """ # Coerce types; manage arguments query_history = authorized_get_history(request, id, must_exist=True) db = dbms.get(request.user, query_history.get_query_server_config()) # GET param: context. context_param = request.GET.get('context', '') # GET param: on_success_url. Default to view_results if request.session.get('dl_status', False)==False and download_format in common.DL_FORMATS: results_url = urlresolvers.reverse(get_app_name(request) + ':execute_query') else: results_url = urlresolvers.reverse(get_app_name(request) + ':view_results', kwargs={'id': id, 'first_row': 0}) if request.GET.get('download', ''): results_url += '?download=true' on_success_url = request.GET.get('on_success_url') if not on_success_url: on_success_url = results_url # Go to next statement if asked to continue or when a statement with no dataset finished. if request.method == 'POST' or ( not query_history.is_finished() and query_history.is_success() and not query_history.has_results): try: query_history = db.execute_next_statement(query_history) except Exception: pass # Check query state handle, state = _get_query_handle_and_state(query_history) query_history.save_state(state) if query_history.is_failure(): # When we fetch, Beeswax server will throw us a BeeswaxException, which has the # log we want to display. return format_preserving_redirect(request, results_url, request.GET) elif query_history.is_finished() or (query_history.is_success() and query_history.has_results): if request.session.get('dl_status', False): # BUG-20020 on_success_url = urlresolvers.reverse(get_app_name(request) + ':download', kwargs=dict(id=str(id), format=download_format)) _clean_session(request) return format_preserving_redirect(request, on_success_url, request.GET) # Still running log = db.get_log(handle) # Keep waiting # - Translate context into something more meaningful (type, data) query_context = _parse_query_context(context_param) return render('watch_wait.mako', request, { 'query': query_history, 'fwd_params': request.GET.urlencode(), 'log': log, 'hadoop_jobs': _parse_out_hadoop_jobs(log)[0], 'query_context': query_context, 'download_format': download_format, ## ExpV })
if not request.POST.get('next'): # We need this as multi query would fail as current query is closed handle, state = _get_query_handle_and_state(query_history) query_history.save_state(state) # Go to next statement if asked to continue or when a statement with no dataset finished. try: if request.POST.get('next') or (not query_history.is_finished() and query_history.is_success() and not query_history.has_results): close_operation(request, id) query_history = db.execute_next_statement(query_history, request.POST.get('query-query')) handle, state = _get_query_handle_and_state(query_history) except QueryServerException, ex: raise ex except Exception, ex: LOG.exception(ex) handle, state = _get_query_handle_and_state(query_history) try: start_over = request.POST.get('log-start-over') == 'true' log = db.get_log(handle, start_over=start_over) except Exception, ex: log = str(ex) jobs = _parse_out_hadoop_jobs(log) job_urls = massage_job_urls_for_json(jobs) result = { 'status': -1, 'log': log, 'jobs': jobs, 'jobUrls': job_urls,
def view_results(request, id, first_row=0): """ Returns the view for the results of the QueryHistory with the given id. The query results MUST be ready. To display query results, one should always go through the watch_query view. If ``first_row`` is 0, restarts (if necessary) the query read. Otherwise, just spits out a warning if first_row doesn't match the servers conception. Multiple readers will produce a confusing interaction here, and that's known. It understands the ``context`` GET parameter. (See watch_query().) """ first_row = long(first_row) start_over = (first_row == 0) results = None data = None fetch_error = False error_message = '' log = '' app_name = get_app_name(request) query_history = authorized_get_history(request, id, must_exist=True) db = dbms.get(request.user, query_history.get_query_server_config()) handle, state = _get_query_handle_and_state(query_history) context_param = request.GET.get('context', '') query_context = _parse_query_context(context_param) # To remove in Hue 2.3 download = request.GET.get('download', '') # Update the status as expired should not be accessible expired = state == QueryHistory.STATE.expired if expired: state = QueryHistory.STATE.expired query_history.save_state(state) # Retrieve query results try: if not download: results = db.fetch(handle, start_over, 100) data = list(results.rows()) # Materialize results # We display the "Download" button only when we know that there are results: downloadable = first_row > 0 or data else: downloadable = True data = [] results = type('Result', (object,), { 'rows': 0, 'columns': [], 'has_more': False, 'start_row': 0, }) log = db.get_log(handle) except Exception as ex: fetch_error = True error_message, log = expand_exception(ex, db) # Handle errors error = fetch_error or results is None or expired context = { 'error': error, 'error_message': error_message, 'has_more': True, 'query': query_history, 'results': data, 'expected_first_row': first_row, 'log': log, 'hadoop_jobs': _parse_out_hadoop_jobs(log)[0], 'query_context': query_context, 'can_save': False, 'context_param': context_param, 'expired': expired, 'app_name': app_name, 'download': download, } if not error: download_urls = {} if downloadable: for format in common.DL_FORMATS: download_urls[format] = urlresolvers.reverse('beeswax' + ':download', kwargs=dict(id=str(id), format=format)) save_form = SaveResultsForm() results.start_row = first_row context.update({ 'results': data, 'has_more': results.has_more, 'next_row': results.start_row + len(data), 'start_row': results.start_row, 'expected_first_row': first_row, 'columns': results.columns, 'download_urls': download_urls, 'save_form': save_form, 'can_save': query_history.owner == request.user and not download, }) return render('watch_results.mako', request, context)
def save_results(request, query_id): """ Save the results of a query to an HDFS directory or Hive table. """ response = {'status': 0, 'message': ''} query_history = authorized_get_history(request, query_id, must_exist=True) server_id, state = _get_query_handle_and_state(query_history) query_history.save_state(state) error_msg, log = None, None if request.method != 'POST': response['message'] = _('A POST request is required.') else: if not query_history.is_success(): response['message'] = _('This query is %(state)s. Results unavailable.') % {'state': state} response['status'] = -1 return HttpResponse(json.dumps(response), mimetype="application/json") # massage data to work with old forms data = {} if request.POST.get('type') == 'hive-table': data['save_target'] = 'to a new table' data['target_table'] = request.POST.get('path', None) elif request.POST.get('type') == 'hdfs': data['save_target'] = 'to HDFS directory' data['target_dir'] = request.POST.get('path', None) else: data['save_target'] = None data['target_table'] = request.POST.get('path', None) data['target_dir'] = request.POST.get('path', None) db = dbms.get(request.user, query_history.get_query_server_config()) form = beeswax.forms.SaveResultsForm(data, db=db, fs=request.fs) if form.is_valid(): try: handle, state = _get_query_handle_and_state(query_history) result_meta = db.get_results_metadata(handle) except Exception, ex: response['message'] = _('Cannot find query: %s') % {'state': state} response['status'] = -2 return HttpResponse(json.dumps(response), mimetype="application/json") try: if form.cleaned_data['save_target'] == form.SAVE_TYPE_DIR: target_dir = form.cleaned_data['target_dir'] query_history = db.insert_query_into_directory(query_history, target_dir) response['type'] = 'hdfs' response['id'] = query_history.id response['query'] = query_history.query response['path'] = target_dir response['watch_url'] = reverse(get_app_name(request) + ':watch_query_refresh_json', kwargs={'id': query_history.id}) elif form.cleaned_data['save_target'] == form.SAVE_TYPE_TBL: db.create_table_as_a_select(request, query_history, form.cleaned_data['target_table'], result_meta) response['type'] = 'hive-table' response['path'] = form.cleaned_data['target_table'] except Exception, ex: error_msg, log = expand_exception(ex, db) response['message'] = _('The result could not be saved: %s.') % error_msg response['status'] = -3
if not request.POST.get('next'): # We need this as multi query would fail as current query is closed handle, state = _get_query_handle_and_state(query_history) query_history.save_state(state) # Go to next statement if asked to continue or when a statement with no dataset finished. try: if request.POST.get('next') or (not query_history.is_finished() and query_history.is_success() and not query_history.has_results): close_operation(request, id) query_history = db.execute_next_statement(query_history, request.POST.get('query-query')) handle, state = _get_query_handle_and_state(query_history) except QueryServerException, ex: raise ex except Exception, ex: LOG.exception(ex) handle, state = _get_query_handle_and_state(query_history) try: start_over = request.POST.get('log-start-over') == 'true' log = db.get_log(handle, start_over=start_over) except Exception, ex: log = str(ex) jobs = _parse_out_hadoop_jobs(log) job_urls = massage_job_urls_for_json(jobs) result = { 'status': -1, 'log': log, 'jobs': jobs, 'jobUrls': job_urls,
def view_results(request, id, first_row=0): """ Returns the view for the results of the QueryHistory with the given id. The query results MUST be ready. To display query results, one should always go through the watch_query view. If ``first_row`` is 0, restarts (if necessary) the query read. Otherwise, just spits out a warning if first_row doesn't match the servers conception. Multiple readers will produce a confusing interaction here, and that's known. It understands the ``context`` GET parameter. (See watch_query().) """ first_row = long(first_row) start_over = (first_row == 0) results = None data = None fetch_error = False error_message = '' log = '' app_name = get_app_name(request) query_history = authorized_get_history(request, id, must_exist=True) db = dbms.get(request.user, query_history.get_query_server_config()) handle, state = _get_query_handle_and_state(query_history) context_param = request.GET.get('context', '') query_context = _parse_query_context(context_param) # To remove in Hue 2.3 download = request.GET.get('download', '') # Update the status as expired should not be accessible expired = state == QueryHistory.STATE.expired if expired: state = QueryHistory.STATE.expired query_history.save_state(state) # Retrieve query results try: if not download: results = db.fetch(handle, start_over, 100) data = list(results.rows()) # Materialize results # We display the "Download" button only when we know that there are results: downloadable = first_row > 0 or data else: downloadable = True data = [] results = type('Result', (object, ), { 'rows': 0, 'columns': [], 'has_more': False, 'start_row': 0, }) log = db.get_log(handle) except Exception as ex: fetch_error = True error_message, log = expand_exception(ex, db) # Handle errors error = fetch_error or results is None or expired context = { 'error': error, 'error_message': error_message, 'has_more': True, 'query': query_history, 'results': data, 'expected_first_row': first_row, 'log': log, 'hadoop_jobs': _parse_out_hadoop_jobs(log)[0], 'query_context': query_context, 'can_save': False, 'context_param': context_param, 'expired': expired, 'app_name': app_name, 'download': download, } if not error: download_urls = {} if downloadable: for format in common.DL_FORMATS: download_urls[format] = urlresolvers.reverse( 'beeswax' + ':download', kwargs=dict(id=str(id), format=format)) save_form = SaveResultsForm() results.start_row = first_row context.update({ 'results': data, 'has_more': results.has_more, 'next_row': results.start_row + len(data), 'start_row': results.start_row, 'expected_first_row': first_row, 'columns': results.columns, 'download_urls': download_urls, 'save_form': save_form, 'can_save': query_history.owner == request.user and not download, }) return render('watch_results.mako', request, context)