{"id":7452,"date":"2018-02-07T13:48:30","date_gmt":"2018-02-07T13:48:30","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=7452"},"modified":"2021-12-07T12:58:52","modified_gmt":"2021-12-07T07:28:52","slug":"sqoop-troubleshooting-tips","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/sqoop-troubleshooting-tips\/","title":{"rendered":"Sqoop Troubleshooting Tips &#8211; Apache Sqoop Known Issues"},"content":{"rendered":"<p>While working on <a href=\"https:\/\/data-flair.training\/blogs\/sqoop-introduction\/\"><strong>Sqoop<\/strong><\/a>, there is the possibility that may failure encounters. So, to troubleshoot any failure there are several steps we should follow. So, in this article, \u201cSqoop Troubleshooting\u201d we will learn the sqoop troubleshooting process or we can say apache sqoop known issues. Also, we will learn sqoop troubleshooting tips to troubleshoot in a better way.<\/p>\n<h3>General Sqoop Troubleshooting Process<\/h3>\n<p>While running Sqoop, there are several steps we should follow. <span class=\"adverb\">Basically<\/span>, that will help to troubleshoot any failure that we encounter. Such as:<\/p>\n<ul>\n<li style=\"font-weight: 400\">Generally, we can turn on verbose output by executing the same command again. It will help to identify errors. Also, by specifying the &#8211;verbose option. <span class=\"adverb\">Basically<\/span>, Sqoop troubleshooting process produces more debug output on the console. Hence we can <span class=\"adverb\">easily<\/span> inspect them.<\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Also, to see if there are any specific failures recorded we can look at the task logs from <a href=\"https:\/\/data-flair.training\/blogs\/hadoop-tutorial\/\"><strong>Hadoop<\/strong><\/a>. Since failure may occur while task execution is not relayed correctly to the console.<\/span><\/li>\n<li style=\"font-weight: 400\"><span class=\"adverb\">Basically<\/span>, Sqoop troubleshooting is just that the necessary input files or input\/output tables are present. Moreover, can <span class=\"passivevoice\">be accessed by<\/span> the user that Sqoop is executing as or connecting to the database as. Since there is a possibility that the necessary files or tables are present. <span class=\"complexword\">However<\/span>, it is not necessary that Sqoop connects can access these files.<\/li>\n<li style=\"font-weight: 400\">Generally, we need to break the job into two separate actions, to see where the problem <span class=\"adverb\">really<\/span> occurs. Especially, if you are doing a compound action try breaking them. While compound actions can be like populating a <a href=\"https:\/\/data-flair.training\/blogs\/apache-hive-tutorial\/\"><strong>Hive<\/strong><\/a> table or <strong><a href=\"https:\/\/data-flair.training\/blogs\/apache-hive-partitions\/\">partition in a hive<\/a><\/strong>.<\/li>\n<\/ul>\n<h3>Specific Sqoop Troubleshooting Tips<\/h3>\n<h4>a. Oracle: Connection Reset Errors<\/h4>\n<p><b>Problem 1<\/b><span style=\"font-weight: 400\">.<\/span><br \/>\nFor Oracle whenever we use the default Sqoop connector, some data get transferred. <span class=\"complexword\">However<\/span>, a lot of errors <span class=\"passivevoice\">are reported<\/span> during the map-reduce job. Like below:<br \/>\n11\/05\/26 16:23:47 INFO mapred.JobClient: Task Id : attempt_201105261333_0002_m_000002_0, Status : FAILED<br \/>\njava.lang.RuntimeException: java.lang.RuntimeException: java.sql.SQLRecoverableException: IO Error: Connection reset<br \/>\nat com.cloudera.sqoop.mapreduce.db.DBInputFormat.setConf(DBInputFormat.java:164)<br \/>\nat org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:62)<br \/>\nat org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:117)<br \/>\nat org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:605)<br \/>\nat org.apache.hadoop.mapred.MapTask.run(MapTask.java:322)<br \/>\nat org.apache.hadoop.mapred.Child$4.run(Child.java:268)<br \/>\nat java.security.AccessController.doPrivileged(Native Method)<br \/>\nat javax.security.auth.Subject.doAs(Subject.java:396)<br \/>\nat org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1115)<br \/>\nat org.apache.hadoop.mapred.Child.main(Child.java:262)<br \/>\nCaused by: java.lang.RuntimeException: java.sql.SQLRecoverableException: IO Error: Connection reset<br \/>\nat com.cloudera.sqoop.mapreduce.db.DBInputFormat.getConnection(DBInputFormat.java:190)<br \/>\nat com.cloudera.sqoop.mapreduce.db.DBInputFormat.setConf(DBInputFormat.java:159)<br \/>\n&#8230; 9 more<br \/>\nCaused by: java.sql.SQLRecoverableException: IO Error: Connection reset<br \/>\nat oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:428)<br \/>\nat oracle.jdbc.driver.PhysicalConnection.&lt;init&gt;(PhysicalConnection.java:536)<br \/>\nat oracle.jdbc.driver.T4CConnection.&lt;init&gt;(T4CConnection.java:228)<br \/>\nat oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)<br \/>\nat oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521)<br \/>\nat java.sql.DriverManager.getConnection(DriverManager.java:582)<br \/>\nat java.sql.DriverManager.getConnection(DriverManager.java:185)<br \/>\nat com.cloudera.sqoop.mapreduce.db.DBConfiguration.getConnection(DBConfiguration.java:152)<br \/>\nat com.cloudera.sqoop.mapreduce.db.DBInputFormat.getConnection(DBInputFormat.java:184)<br \/>\n&#8230; 10 more<br \/>\nCaused by: java.net.SocketException: Connection reset<br \/>\nat java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:96)<br \/>\nat java.net.SocketOutputStream.write(SocketOutputStream.java:136)<br \/>\nat oracle.net.ns.DataPacket.send(DataPacket.java:199)<br \/>\nat oracle.net.ns.NetOutputStream.flush(NetOutputStream.java:211)<br \/>\nat oracle.net.ns.NetInputStream.getNextPacket(NetInputStream.java:227)<br \/>\nat oracle.net.ns.NetInputStream.read(NetInputStream.java:175)<br \/>\nat oracle.net.ns.NetInputStream.read(NetInputStream.java:100)<br \/>\nat oracle.net.ns.NetInputStream.read(NetInputStream.java:85)<br \/>\nat oracle.jdbc.driver.T4CSocketInputStreamWrapper.readNextPacket(T4CSocketInputStreamWrapper.java:123)<br \/>\nat oracle.jdbc.driver.T4CSocketInputStreamWrapper.read(T4CSocketInputStreamWrapper.java:79)<br \/>\nat oracle.jdbc.driver.T4CMAREngine.unmarshalUB1(T4CMAREngine.java:1122)<br \/>\nat oracle.jdbc.driver.T4CMAREngine.unmarshalSB1(T4CMAREngine.java:1099)<br \/>\nat oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:288)<br \/>\nat oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:191)<br \/>\nat oracle.jdbc.driver.T4CTTIoauthenticate.doOAUTH(T4CTTIoauthenticate.java:366)<br \/>\nat oracle.jdbc.driver.T4CTTIoauthenticate.doOAUTH(T4CTTIoauthenticate.java:752)<br \/>\nat oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:366)<br \/>\n&#8230; 18 more<br \/>\n<b><\/b><\/p>\n<p><b>Solution<\/b><span style=\"font-weight: 400\">. <\/span><br \/>\nSince we lack a fast random number generation device on the host this type of problem occurs. Especially where the map tasks execute. Moreover, we can address this on typical Linux systems. It is possible by setting the following property in the java.security file.<br \/>\n<b>securerandom.source=file:\/dev\/..\/dev\/urandom<\/b><br \/>\n<span style=\"font-weight: 400\">Under $JAVA_HOME\/jre\/lib\/security directory we can find the java.security file. Also, we can specify this property on the command line. By:<\/span><br \/>\n<b>-D mapred.child.java.opts=&#8221;-Djava.security.egd=file:\/dev\/..\/dev\/urandom&#8221;<\/b><br \/>\n<b>Note:<\/b><span style=\"font-weight: 400\">\u00a0 Basically, it is essential to specify this weird path \/dev\/..\/dev\/urandom as it is due to a <strong>Java<\/strong> bug 6202721. Else \/dev\/urandom will be ignored and substituted by \/dev\/random.<\/span><\/p>\n<h3>b. Oracle: Case-Sensitive Catalog Query Errors<\/h3>\n<p><b>Problem 2.<\/b><br \/>\nWhen Sqoop cannot figure out column names while working with Oracle. It may encounter problems. Although, there is one major reason behind this scenario. That is the catalog queries which Sqoop uses for Oracle. Expect the correct case to <span class=\"passivevoice\">be specified<\/span> for the username as well as the table name.<br \/>\n<b><\/b><\/p>\n<p><b>For example,<\/b><br \/>\n<span style=\"font-weight: 400\">By using &#8211;hive-import and resulting in a NullPointerException:<\/span><br \/>\n1\/09\/21 17:18:49 INFO manager.OracleManager: Time zone has been set to<br \/>\nGMT<br \/>\n11\/09\/21 17:18:49 DEBUG manager.SqlManager: Using fetchSize for next<br \/>\nquery: 1000<br \/>\n11\/09\/21 17:18:49 INFO manager.SqlManager: Executing SQL statement:<br \/>\nSELECT t.* FROM addlabel_pris t WHERE 1=0<br \/>\n11\/09\/21 17:18:49 DEBUG manager.OracleManager$ConnCache: Caching<br \/>\nreleased connection for jdbc:oracle:thin:<br \/>\n11\/09\/21 17:18:49 ERROR sqoop.Sqoop: Got exception running Sqoop:<br \/>\njava.lang.NullPointerException<br \/>\njava.lang.NullPointerException<br \/>\nat com.cloudera.sqoop.hive.TableDefWriter.getCreateTableStmt(TableDefWriter.java:148)<br \/>\nat com.cloudera.sqoop.hive.HiveImport.importTable(HiveImport.java:187)<br \/>\nat com.cloudera.sqoop.tool.ImportTool.importTable(ImportTool.java:362)<br \/>\nat com.cloudera.sqoop.tool.ImportTool.run(ImportTool.java:423)<br \/>\nat com.cloudera.sqoop.Sqoop.run(Sqoop.java:144)<br \/>\nat org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)<br \/>\nat com.cloudera.sqoop.Sqoop.runSqoop(Sqoop.java:180)<br \/>\nat com.cloudera.sqoop.Sqoop.runTool(Sqoop.java:219)<br \/>\nat com.cloudera.sqoop.Sqoop.runTool(Sqoop.java:228)<br \/>\nat com.cloudera.sqoop.Sqoop.main(Sqoop.java:237)<\/p>\n<p><strong>Solution:<\/strong><br \/>\nMake sure we specify the username, that Sqoop is connecting as, in upper case. Unless it was created with mixed\/lower case within quotes.<br \/>\nAgain ensure we need to specify the table name, that we are working with, in upper case. Unless it was created with mixed\/lower case within quotes.<\/p>\n<h4>c. MySQL: Connection Failure<\/h4>\n<p><b>Problem 3.<\/b><br \/>\nIt is possible to get the below connection failure. While importing a MySQL table into Sqoop if we do not have the permissions to access our MySQL database.<br \/>\n<b>Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure<\/b><br \/>\n<b><\/b><\/p>\n<p><b>Solution:<\/b><br \/>\n<span style=\"font-weight: 400\">At first, make sure that where we are running Sqoop there we can connect to the database from the node:<\/span><br \/>\n<b>$ mysql &#8211;host=&lt;IP Address&gt; &#8211;database=test &#8211;user=&lt;username&gt; &#8211;password=&lt;password&gt;<\/b><br \/>\nSince this works, it rules out any problem with the client network configuration. Also with security\/authentication configuration.<br \/>\n<span style=\"font-weight: 400\">Afterwards, add the network port for the server to our my.cnf file \/etc\/my.cnf:<\/span><br \/>\n<b>[mysqld]<\/b><br \/>\n<b>port = xxxx<\/b><br \/>\n<span style=\"font-weight: 400\">In addition, To connect by Sqoop, set up a user account. Now, to access the database over the network grant permissions to the user by following steps.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">At First, Log into MySQL as root mysql -u root -p&lt;ThisIsMyPassword&gt;.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\"> Issue the following command:<\/span><\/li>\n<\/ul>\n<p><b>mysql&gt; grant all privileges on test.* to &#8216;testuser&#8217;@&#8217;%&#8217; identified by &#8216;testpassword&#8217;<\/b><br \/>\n<b>Note:<\/b><span style=\"font-weight: 400\"> \u00a0It will enable the testuser to connect to the MySQL server from any IP address. <\/span><\/p>\n<h4>d. Oracle: ORA-00933 error (SQL command not properly ended)<\/h4>\n<p><b>Problem 4.<\/b><br \/>\nWe may encounter the below problem. <span class=\"hardreadability\">while working with Oracle when the Sqoop command <\/span><span class=\"adverb\">explicitly<\/span><span class=\"hardreadability\"> specifies the &#8211;driver &lt;driver name&gt; option<\/span>. <span class=\"veryhardreadability\">Moreover, the built-in connection manager selection defaults to the generic connection manager, when the driver option <\/span><span class=\"passivevoice\">is included<\/span><span class=\"veryhardreadability\"> in the Sqoop command that causes this issue with Oracle<\/span>.<\/p>\n<p><span class=\"veryhardreadability\">Likewise, the built-in connection manager selection mechanism selects the Oracle-specific connection manager, if the driver option is not specified<\/span>. That generates valid SQL for Oracle also uses the driver &#8220;oracle.jdbc.OracleDriver&#8221;.<br \/>\n<b>ERROR manager.SqlManager: Error executing statement:<\/b><br \/>\n<b>java.sql.SQLSyntaxErrorException: ORA-00933: SQL command not properly ended<\/b><br \/>\n<b><\/b><\/p>\n<p><b>Solution: <\/b><br \/>\n<span style=\"font-weight: 400\">Re-run the Sqoop command after omitting the option &#8211;driver oracle.jdbc.driver.OracleDriver.<\/span><\/p>\n<h4>e. MySQL: Import of TINYINT(1) from MySQL behaves strangely<\/h4>\n<p><b>Problem 5.<\/b><br \/>\n<span style=\"font-weight: 400\">While Sqoop may treat TINYINT(1) columns as booleans, that may cause issues with <a href=\"https:\/\/data-flair.training\/blogs\/apache-hive-architecture\/\"><strong>HIVE<\/strong><\/a> import. Generally, it occurs when by default the MySQL JDBC connector maps the TINYINT(1) to java.sql.Types.BIT. Basically, that Sqoop maps to boolean by default.<\/span><br \/>\n<b><\/b><\/p>\n<p><b>Solution: <\/b><br \/>\n<span class=\"complexword\">However<\/span>, there is one possible solution for it. <span class=\"hardreadability\">To force MySQL JDBC connector to stop converting TINYINT(1) to java.sql.Types.BIT by adding tinyInt1isBit=false into your JDBC path<\/span>. <span class=\"adverb\">Basically<\/span>, to create something like jdbc:mysql:\/\/localhost\/test?tinyInt1isBit=false.<\/p>\n<h3>Conclusion<\/h3>\n<p>As a result, we have learned all the possible sqoop troubleshooting steps. However, that will help to troubleshoot all possible failure that we encounter through sqoop troubleshooting or Apache sqoop known issues. Still, if you want to ask any query, feel free to ask through the comment section. We will definitely, get back to you.<br \/>\n<strong>See also- <a href=\"https:\/\/data-flair.training\/blogs\/sqoop-architecture-and-working\/\">Sqoop\u00a0Architecture <\/a><\/strong>&amp;\u00a0<a href=\"https:\/\/data-flair.training\/blogs\/features-of-sqoop\/\"><strong> Why Learn Sqoop<\/strong><\/a><br \/>\n<a href=\"http:\/\/sqoop.apache.org\/\"><strong>For reference<\/strong><\/a><span hidden class=\"__iawmlf-post-loop-links\" data-iawmlf-links=\"[{&quot;id&quot;:2028,&quot;href&quot;:&quot;http:\\\/\\\/sqoop.apache.org&quot;,&quot;archived_href&quot;:&quot;http:\\\/\\\/web-wp.archive.org\\\/web\\\/20250925155903\\\/https:\\\/\\\/sqoop.apache.org\\\/&quot;,&quot;redirect_href&quot;:&quot;&quot;,&quot;checks&quot;:[{&quot;date&quot;:&quot;2025-12-10 22:16:24&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2025-12-13 23:03:34&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2025-12-17 06:30:42&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2025-12-20 10:18:24&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2025-12-24 02:01:17&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2025-12-27 19:00:12&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2025-12-30 19:52:56&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-01-02 23:02:08&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-01-06 11:12:12&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-01-11 07:39:38&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-01-14 14:00:02&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-01-19 20:14:32&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-01-23 07:39:12&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-01-26 22:35:53&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-02-02 09:53:53&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-02-09 06:23:03&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-02-12 18:07:52&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-02-16 05:01:07&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-02-20 15:46:49&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-02-23 20:42:32&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-03-02 19:22:48&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-03-06 04:01:50&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-03-10 04:30:56&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-03-16 11:20:34&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-03-20 07:53:03&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-03-23 12:38:35&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-03-31 03:58:55&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-04-03 07:44:35&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-04-06 10:04:08&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-04-09 14:27:25&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-04-14 16:47:23&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-04-21 15:59:43&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-04-26 17:43:51&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-04-30 00:21:38&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-05-04 07:58:56&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-05-07 14:39:59&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-05-12 19:37:57&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-05-17 18:39:42&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-05-21 10:10:02&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-05-26 11:21:43&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-06-01 06:33:57&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-06-05 02:07:45&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-06-10 06:22:15&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-06-14 04:14:00&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-06-18 03:31:28&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-06-21 19:29:51&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-06-25 17:04:32&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-06-29 06:32:15&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-07-02 14:31:23&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-07-06 12:01:37&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-07-09 21:39:27&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-07-13 05:53:35&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-07-16 16:20:34&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-07-19 23:26:24&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-07-23 14:38:31&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-07-27 08:07:16&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-08-02 06:39:08&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-08-06 09:03:11&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-08-09 17:40:41&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-08-14 05:02:03&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-08-17 15:24:19&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-08-20 20:21:31&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-08-24 16:51:28&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-08-28 13:17:25&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-08-31 20:30:32&quot;,&quot;http_code&quot;:206}],&quot;broken&quot;:false,&quot;last_checked&quot;:{&quot;date&quot;:&quot;2026-08-31 20:30:32&quot;,&quot;http_code&quot;:206},&quot;process&quot;:&quot;done&quot;}]\"><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>While working on Sqoop, there is the possibility that may failure encounters. So, to troubleshoot any failure there are several steps we should follow. So, in this article, \u201cSqoop Troubleshooting\u201d we will learn the&#46;&#46;&#46;<\/p>\n","protected":false},"author":9,"featured_media":7592,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[68],"tags":[972,7329,8992,9318,9319,13675,13676,13677,14949,14964],"class_list":["post-7452","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sqoop","tag-apache-sqoop-known-issues","tag-issues-in-apache-sqoop","tag-mysql-connection-failure","tag-oracle-connection-reset-errors","tag-oracle-ora-00933-error","tag-sqoop-troubleshooting","tag-sqoop-troubleshooting-process","tag-sqoop-troubleshooting-tips","tag-troubles-in-sqoop","tag-troubleshooting-in-sqoop"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sqoop Troubleshooting Tips - Apache Sqoop Known Issues - DataFlair<\/title>\n<meta name=\"description\" content=\"Sqoop Troubleshooting process &amp; tips-Apache sqoop known issues, ways to resolve sqoop issues for smooth programming in sqoop,Troubleshooting in Oracle,MySQL\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/data-flair.training\/blogs\/sqoop-troubleshooting-tips\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sqoop Troubleshooting Tips - Apache Sqoop Known Issues - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Sqoop Troubleshooting process &amp; tips-Apache sqoop known issues, ways to resolve sqoop issues for smooth programming in sqoop,Troubleshooting in Oracle,MySQL\" \/>\n<meta property=\"og:url\" content=\"https:\/\/data-flair.training\/blogs\/sqoop-troubleshooting-tips\/\" \/>\n<meta property=\"og:site_name\" content=\"DataFlair\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/DataFlairWS\/\" \/>\n<meta property=\"article:published_time\" content=\"2018-02-07T13:48:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-12-07T07:28:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/02\/Troubleshooting-tips-in-Sqoop-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"628\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"DataFlair Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:site\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"DataFlair Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Sqoop Troubleshooting Tips - Apache Sqoop Known Issues - DataFlair","description":"Sqoop Troubleshooting process & tips-Apache sqoop known issues, ways to resolve sqoop issues for smooth programming in sqoop,Troubleshooting in Oracle,MySQL","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/data-flair.training\/blogs\/sqoop-troubleshooting-tips\/","og_locale":"en_US","og_type":"article","og_title":"Sqoop Troubleshooting Tips - Apache Sqoop Known Issues - DataFlair","og_description":"Sqoop Troubleshooting process & tips-Apache sqoop known issues, ways to resolve sqoop issues for smooth programming in sqoop,Troubleshooting in Oracle,MySQL","og_url":"https:\/\/data-flair.training\/blogs\/sqoop-troubleshooting-tips\/","og_site_name":"DataFlair","article_publisher":"https:\/\/www.facebook.com\/DataFlairWS\/","article_published_time":"2018-02-07T13:48:30+00:00","article_modified_time":"2021-12-07T07:28:52+00:00","og_image":[{"width":1200,"height":628,"url":"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/02\/Troubleshooting-tips-in-Sqoop-1.jpg","type":"image\/jpeg"}],"author":"DataFlair Team","twitter_card":"summary_large_image","twitter_creator":"@DataFlairWS","twitter_site":"@DataFlairWS","twitter_misc":{"Written by":"DataFlair Team","Est. reading time":"8 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/data-flair.training\/blogs\/sqoop-troubleshooting-tips\/#article","isPartOf":{"@id":"https:\/\/data-flair.training\/blogs\/sqoop-troubleshooting-tips\/"},"author":{"name":"DataFlair Team","@id":"https:\/\/data-flair.training\/blogs\/#\/schema\/person\/6e11a88eea98179e861a0933f8959f8f"},"headline":"Sqoop Troubleshooting Tips &#8211; 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