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UrlsController
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Merge branch 'master' of https://code-repo.d4science.org/antonis.lempesis/UrlsController

This commit is contained in:
Antonis Lempesis 2022-02-01 02:08:21 +02:00
parent f5748434c7 e9bede5c45
commit c093e52d15
3 changed files with 35 additions and 25 deletions
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13
src/main/java/eu/openaire/urls_controller/configuration/ImpalaConnector.java
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@ -19,13 +19,16 @@ public final class ImpalaConnector {
@Autowired
private JdbcTemplate jdbcTemplate;
@Value("${services.pdfaggregation.controller.db.oldDatabaseName}")
public static String oldDatabaseName;
@Value("${services.pdfaggregation.controller.db.databaseName}")
public static String databaseName;
private final String oldDatabaseName;
private final String databaseName;
public static final Lock databaseLock = new ReentrantLock(true); // This lock is locking the threads trying to execute queries in the database.
public ImpalaConnector(@Value("${services.pdfaggregation.controller.db.oldDatabaseName}") String oldDatabaseName,
@Value("${services.pdfaggregation.controller.db.databaseName}") String databaseName) {
this.oldDatabaseName = oldDatabaseName;
this.databaseName = databaseName;
}
@PostConstruct
public void init() {
logger.info("Max available memory to the Controller: " + Runtime.getRuntime().maxMemory() + " bytes.");
@ -60,7 +63,7 @@ public final class ImpalaConnector {
jdbcTemplate.execute("CREATE TABLE IF NOT EXISTS " + databaseName + ".assignment (id string, original_url string, workerid string, `date` timestamp) stored as parquet");
jdbcTemplate.execute("COMPUTE STATS " + databaseName + ".assignment");
jdbcTemplate.execute("DROP TABLE IF EXISTS " + ImpalaConnector.databaseName + ".current_assignment PURGE");
jdbcTemplate.execute("DROP TABLE IF EXISTS " + databaseName + ".current_assignment PURGE");
jdbcTemplate.execute("CREATE TABLE IF NOT EXISTS " + databaseName + ".attempt (id string, original_url string, `date` timestamp, status string, error_class string, error_message string) stored as parquet");
jdbcTemplate.execute("COMPUTE STATS " + databaseName + ".attempt");

33
src/main/java/eu/openaire/urls_controller/controllers/UrlController.java
View File

@ -44,6 +44,9 @@ public class UrlController {
@Value("${services.pdfaggregation.controller.assignmentLimit}")
private int assignmentLimit;
@Value("${services.pdfaggregation.controller.db.databaseName}")
private String databaseName;
@GetMapping("")
public ResponseEntity<?> getUrls(@RequestParam String workerId, @RequestParam int workerAssignmentsLimit) {
@ -72,24 +75,24 @@ public class UrlController {
String findAssignmentsQuery = "select pubid, url, datasourceid, datasourcetype\n" +
"from (select distinct pubid, url, datasourceid, datasourcetype, attempt_count from (\n" +
"select p.id as pubid, pu.url as url, d.id as datasourceid, d.type as datasourcetype, attempts.counts as attempt_count\n" +
"from " + ImpalaConnector.databaseName + ".publication p\n" +
"join " + ImpalaConnector.databaseName + ".publication_urls pu on pu.id=p.id\n" +
"join " + ImpalaConnector.databaseName + ".datasource d on d.id=p.datasourceid\n" +
"left outer join (select count(a.id) as counts, a.id from " + ImpalaConnector.databaseName + ".attempt a group by a.id) as attempts on attempts.id=p.id\n" +
"from " + databaseName + ".publication p\n" +
"join " + databaseName + ".publication_urls pu on pu.id=p.id\n" +
"join " + databaseName + ".datasource d on d.id=p.datasourceid\n" +
"left outer join (select count(a.id) as counts, a.id from " + databaseName + ".attempt a group by a.id) as attempts on attempts.id=p.id\n" +
"left outer join (\n" +
" select a.id, a.original_url from " + ImpalaConnector.databaseName + ".assignment a\n" +
" select a.id, a.original_url from " + databaseName + ".assignment a\n" +
" union all\n" +
" select pl.id, pl.original_url from " + ImpalaConnector.databaseName + ".payload pl) as existing on existing.id=p.id and existing.original_url=pu.url\n" +
"where d.allow_harvest=true and existing.id is null and coalesce(attempts.counts, 0) <= " + maxAttemptsPerRecord + " and not exists (select 1 from " + ImpalaConnector.databaseName + ".attempt a where a.id=p.id and a.error_class = 'noRetry' limit 1)\n" +
" select pl.id, pl.original_url from " + databaseName + ".payload pl) as existing on existing.id=p.id and existing.original_url=pu.url\n" +
"where d.allow_harvest=true and existing.id is null and coalesce(attempts.counts, 0) <= " + maxAttemptsPerRecord + " and not exists (select 1 from " + databaseName + ".attempt a where a.id=p.id and a.error_class = 'noRetry' limit 1)\n" +
"limit " + (assignmentsLimit * 10) + ") as non_distinct_results\n" +
"order by coalesce(attempt_count, 0), reverse(pubid), url\n" +
"limit " + assignmentsLimit + ") as findAssignmentsQuery";
// The "order by" in the end makes sure the older attempted records will be re-attempted after a long time.
String createAssignmentsQuery = "create table " + ImpalaConnector.databaseName + ".current_assignment as \n" + findAssignmentsQuery;
String computeCurrentAssignmentsStatsQuery = "COMPUTE STATS " + ImpalaConnector.databaseName + ".current_assignment";
String getAssignmentsQuery = "select * from " + ImpalaConnector.databaseName + ".current_assignment";
String createAssignmentsQuery = "create table " + databaseName + ".current_assignment as \n" + findAssignmentsQuery;
String computeCurrentAssignmentsStatsQuery = "COMPUTE STATS " + databaseName + ".current_assignment";
String getAssignmentsQuery = "select * from " + databaseName + ".current_assignment";
List<Assignment> assignments = new ArrayList<>();
@ -171,8 +174,8 @@ public class UrlController {
// Write the Assignment details to the assignment-table.
// The "timestamp" is generated from the Java-code, so it's in no way provided by a 3rd party.
String insertAssignmentsQuery = "insert into " + ImpalaConnector.databaseName + ".assignment \n select pub_data.pubid, pub_data.url, '" + workerId + "', cast('" + timestamp + "' as timestamp)\n"
+ "from (\n select pubid, url from " + ImpalaConnector.databaseName + ".current_assignment) as pub_data";
String insertAssignmentsQuery = "insert into " + databaseName + ".assignment \n select pub_data.pubid, pub_data.url, '" + workerId + "', cast('" + timestamp + "' as timestamp)\n"
+ "from (\n select pubid, url from " + databaseName + ".current_assignment) as pub_data";
try {
jdbcTemplate.execute(insertAssignmentsQuery);
@ -252,8 +255,8 @@ public class UrlController {
ImpalaConnector.databaseLock.lock();
// Store the workerReport into the database.
String insertIntoPayloadBaseQuery = "INSERT INTO " + ImpalaConnector.databaseName + ".payload (id, original_url, actual_url, date, mimetype, size, hash, location, provenance) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)";
String insertIntoAttemptBaseQuery = "INSERT INTO " + ImpalaConnector.databaseName + ".attempt (id, original_url, date, status, error_class, error_message) VALUES (?, ?, ?, ?, ?, ?)";
String insertIntoPayloadBaseQuery = "INSERT INTO " + databaseName + ".payload (id, original_url, actual_url, date, mimetype, size, hash, location, provenance) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)";
String insertIntoAttemptBaseQuery = "INSERT INTO " + databaseName + ".attempt (id, original_url, date, status, error_class, error_message) VALUES (?, ?, ?, ?, ?, ?)";
String payloadErrorMsg = null;
int failedCount = 0;
@ -372,7 +375,7 @@ public class UrlController {
}
private String dropCurrentAssignmentTable() {
String dropCurrentAssignmentsQuery = "DROP TABLE " + ImpalaConnector.databaseName + ".current_assignment PURGE";
String dropCurrentAssignmentsQuery = "DROP TABLE " + databaseName + ".current_assignment PURGE";
try {
jdbcTemplate.execute(dropCurrentAssignmentsQuery);

14
src/main/java/eu/openaire/urls_controller/util/FileUtils.java
View File

@ -40,6 +40,10 @@ public class FileUtils {
@Autowired
private FileUnZipper fileUnZipper;
@Value("${services.pdfaggregation.controller.db.databaseName}")
private String databaseName;
public enum UploadFullTextsResponse {successful, unsuccessful, databaseError}
public FileUtils() throws RuntimeException {
@ -69,10 +73,10 @@ public class FileUtils {
parameter = " '" + parameter + "'"; // This will be a "string-check".
try {
jdbcTemplate.execute("CREATE TABLE " + ImpalaConnector.databaseName + "." + tableName + "_tmp stored as parquet AS SELECT * FROM " + ImpalaConnector.databaseName + "." + tableName + " " + whereClause + parameter);
jdbcTemplate.execute("DROP TABLE " + ImpalaConnector.databaseName + "." + tableName + " PURGE");
jdbcTemplate.execute("ALTER TABLE " + ImpalaConnector.databaseName + "." + tableName + "_tmp RENAME TO " + ImpalaConnector.databaseName + "." + tableName);
jdbcTemplate.execute("COMPUTE STATS " + ImpalaConnector.databaseName + "." + tableName);
jdbcTemplate.execute("CREATE TABLE " + databaseName + "." + tableName + "_tmp stored as parquet AS SELECT * FROM " + databaseName + "." + tableName + " " + whereClause + parameter);
jdbcTemplate.execute("DROP TABLE " + databaseName + "." + tableName + " PURGE");
jdbcTemplate.execute("ALTER TABLE " + databaseName + "." + tableName + "_tmp RENAME TO " + databaseName + "." + tableName);
jdbcTemplate.execute("COMPUTE STATS " + databaseName + "." + tableName);
} catch (DataAccessException e) {
errorMsg = "Problem when executing the \"clone-drop-rename\" queries!\n";
logger.error(errorMsg, e);
@ -104,7 +108,7 @@ public class FileUtils {
ImpalaConnector.databaseLock.lock();
String getFileLocationForHashQuery = "select `location` from " + ImpalaConnector.databaseName + ".payload where `hash` = ?" ;
String getFileLocationForHashQuery = "select `location` from " + databaseName + ".payload where `hash` = ?" ;
// Get the file-locations.
int numFullTextUrlsFound = 0;