Re: Baffling situation with tableExists and createTable
sorry about that. I missed this post Ted This is version 1.2.2 of HBase. zkcli was used to remove a stale node with the tablename. Prior to that i ran hbck which didn't do anything As i mentioned i opened a new Issue in Jira for this. thanks Jeff From: Ted Yu <yuzhih...@gmail.com> Sent: Tuesday, April 25, 2017 5:42:24 PM To: user@hbase.apache.org Subject: Re: Baffling situation with tableExists and createTable Which hbase release are you using ? Can you check master log to see if there is some clue w.r.t. LoadTest ? Using "hbase zkcli", you can inspect the znode status. Below is a sample: [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 2] ls /hbase-unsecure/table [hbase:meta, hbase:namespace, IntegrationTestBigLinkedList, datatsv, usertable, hbase:backup, TestTable, t2] [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 3] ls /hbase-unsecure/table/2 Node does not exist: /hbase-unsecure/table/2 [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 4] ls /hbase-unsecure/table/t2 [] [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 5] get /hbase-unsecure/table/t2 �master:16000K��W�,�PBUF cZxid = 0x1000a7f01 ctime = Mon Mar 27 16:50:52 UTC 2017 mZxid = 0x1000a7f17 mtime = Mon Mar 27 16:50:52 UTC 2017 pZxid = 0x1000a7f01 cversion = 0 dataVersion = 2 On Tue, Apr 25, 2017 at 4:09 PM, jeff saremi <jeffsar...@hotmail.com> wrote: > BTW on the page > http://localhost:16010/master-status#userTables > there is no sign of the supposedly existing table either > > > From: jeff saremi <jeffsar...@hotmail.com> > Sent: Tuesday, April 25, 2017 4:05:56 PM > To: user@hbase.apache.org > Subject: Baffling situation with tableExists and createTable > > I have a super simple piece of code which tries to create a test table if > it does not exist > > calling admin.tableExists(TableName.valueOf(table)) returns false causing > the control to be passed to the line that creates it > admin.createTable(tableDescriptor). > Then i get an exception that the table exists! > > Exception in thread "main" org.apache.hadoop.hbase.TableExistsException: > LoadTest > > > String table = config.tableName; > ... > Connection conn = ConnectionFactory.createConnection(hbaseconf); > Admin admin = conn.getAdmin(); > if(!admin.tableExists(TableName.valueOf(table))) { > Log.info("table " + table + " does not exist. Creating it..."); > HTableDescriptor tableDescriptor = new HTableDescriptor(TableName. > valueOf(table)); > tableDescriptor.addFamily(new HColumnDescriptor(config.FAMILY)); > admin.createTable(tableDescriptor); > } > > Jeff >
Re: Baffling situation with tableExists and createTable
Jeff, Apologies, but I don't see an answer to Ted's earlier question about what version of HBase you're making use of? On Wed, Apr 26, 2017 at 2:50 PM, jeff saremi <jeffsar...@hotmail.com> wrote: > i created this > https://issues.apache.org/jira/browse/HBASE-17966 > > to track this issue > > Overall, none of this should have pushed out to the User. HBase should have > transparently take care of inconsistency in the zookeeper. However i didn't > make this ticket as comprehensive to include what I just said. Let's get > tableExists and createTable the same for now > > > From: jeff saremi <jeffsar...@hotmail.com> > Sent: Wednesday, April 26, 2017 8:31:23 AM > To: user@hbase.apache.org > Subject: Re: Baffling situation with tableExists and createTable > > yes i had to go to zookeeper and manually delete a node under Tables > > my question is why there are multiple standards in how tables are handled > > The same logic that is in tableExists() should exist in createTable() and > vice versa > > > > From: ashish singhi <ashish.sin...@huawei.com> > Sent: Wednesday, April 26, 2017 2:29:49 AM > To: user@hbase.apache.org > Subject: RE: Baffling situation with tableExists and createTable > > This is already handled through Procedure-V2 code in HBase 1.1+ versions. > > Regards, > Ashish > > -Original Message- > From: Anoop John [mailto:anoop.hb...@gmail.com] > Sent: 26 April 2017 15:31 > To: user@hbase.apache.org > Subject: Re: Baffling situation with tableExists and createTable > > Ur earlier attempt to create this table would have failed in btw.. So the > status of the table in zk and in master may be diff.. Table exist might be > checking one and the next steps of crate table another.. > Sorry forgot that area of code.. But have seen this kind of situation. > Not sure whether in some latest versions, these kind of probs are solved or > not. > > -Anoop- > > On Wed, Apr 26, 2017 at 6:12 AM, Ted Yu <yuzhih...@gmail.com> wrote: >> Which hbase release are you using ? >> >> Can you check master log to see if there is some clue w.r.t. LoadTest ? >> >> Using "hbase zkcli", you can inspect the znode status. Below is a sample: >> >> [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 2] >> ls /hbase-unsecure/table [hbase:meta, hbase:namespace, >> IntegrationTestBigLinkedList, datatsv, usertable, hbase:backup, >> TestTable, t2] >> [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 3] >> ls >> /hbase-unsecure/table/2 >> Node does not exist: /hbase-unsecure/table/2 >> [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 4] >> ls >> /hbase-unsecure/table/t2 >> [] >> [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 5] >> get >> /hbase-unsecure/table/t2 >> master:16000K W , PBUF >> cZxid = 0x1000a7f01 >> ctime = Mon Mar 27 16:50:52 UTC 2017 >> mZxid = 0x1000a7f17 >> mtime = Mon Mar 27 16:50:52 UTC 2017 >> pZxid = 0x1000a7f01 >> cversion = 0 >> dataVersion = 2 >> >> On Tue, Apr 25, 2017 at 4:09 PM, jeff saremi <jeffsar...@hotmail.com> wrote: >> >>> BTW on the page >>> http://localhost:16010/master-status#userTables >>> there is no sign of the supposedly existing table either >>> >>> >>> From: jeff saremi <jeffsar...@hotmail.com> >>> Sent: Tuesday, April 25, 2017 4:05:56 PM >>> To: user@hbase.apache.org >>> Subject: Baffling situation with tableExists and createTable >>> >>> I have a super simple piece of code which tries to create a test >>> table if it does not exist >>> >>> calling admin.tableExists(TableName.valueOf(table)) returns false >>> causing the control to be passed to the line that creates it >>> admin.createTable(tableDescriptor). >>> Then i get an exception that the table exists! >>> >>> Exception in thread "main" org.apache.hadoop.hbase.TableExistsException: >>> LoadTest >>> >>> >>> String table = config.tableName; >>> ... >>> Connection conn = ConnectionFactory.createConnection(hbaseconf); >>> Admin admin = conn.getAdmin(); >>> if(!admin.tableExists(TableName.valueOf(table))) { >>> Log.info("table " + table + " does not exist. Creating it..."); >>> HTableDescriptor tableDescriptor = new HTableDescriptor(TableName. >>> valueOf(table)); >>> tableDescriptor.addFamily(new HColumnDescriptor(config.FAMILY)); >>> admin.createTable(tableDescriptor); >>> } >>> >>> Jeff >>> -- Sean
Re: Baffling situation with tableExists and createTable
i created this https://issues.apache.org/jira/browse/HBASE-17966 to track this issue Overall, none of this should have pushed out to the User. HBase should have transparently take care of inconsistency in the zookeeper. However i didn't make this ticket as comprehensive to include what I just said. Let's get tableExists and createTable the same for now From: jeff saremi <jeffsar...@hotmail.com> Sent: Wednesday, April 26, 2017 8:31:23 AM To: user@hbase.apache.org Subject: Re: Baffling situation with tableExists and createTable yes i had to go to zookeeper and manually delete a node under Tables my question is why there are multiple standards in how tables are handled The same logic that is in tableExists() should exist in createTable() and vice versa From: ashish singhi <ashish.sin...@huawei.com> Sent: Wednesday, April 26, 2017 2:29:49 AM To: user@hbase.apache.org Subject: RE: Baffling situation with tableExists and createTable This is already handled through Procedure-V2 code in HBase 1.1+ versions. Regards, Ashish -Original Message- From: Anoop John [mailto:anoop.hb...@gmail.com] Sent: 26 April 2017 15:31 To: user@hbase.apache.org Subject: Re: Baffling situation with tableExists and createTable Ur earlier attempt to create this table would have failed in btw.. So the status of the table in zk and in master may be diff.. Table exist might be checking one and the next steps of crate table another.. Sorry forgot that area of code.. But have seen this kind of situation. Not sure whether in some latest versions, these kind of probs are solved or not. -Anoop- On Wed, Apr 26, 2017 at 6:12 AM, Ted Yu <yuzhih...@gmail.com> wrote: > Which hbase release are you using ? > > Can you check master log to see if there is some clue w.r.t. LoadTest ? > > Using "hbase zkcli", you can inspect the znode status. Below is a sample: > > [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 2] > ls /hbase-unsecure/table [hbase:meta, hbase:namespace, > IntegrationTestBigLinkedList, datatsv, usertable, hbase:backup, > TestTable, t2] > [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 3] > ls > /hbase-unsecure/table/2 > Node does not exist: /hbase-unsecure/table/2 > [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 4] > ls > /hbase-unsecure/table/t2 > [] > [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 5] > get > /hbase-unsecure/table/t2 > master:16000K W , PBUF > cZxid = 0x1000a7f01 > ctime = Mon Mar 27 16:50:52 UTC 2017 > mZxid = 0x1000a7f17 > mtime = Mon Mar 27 16:50:52 UTC 2017 > pZxid = 0x1000a7f01 > cversion = 0 > dataVersion = 2 > > On Tue, Apr 25, 2017 at 4:09 PM, jeff saremi <jeffsar...@hotmail.com> wrote: > >> BTW on the page >> http://localhost:16010/master-status#userTables >> there is no sign of the supposedly existing table either >> >> ____ >> From: jeff saremi <jeffsar...@hotmail.com> >> Sent: Tuesday, April 25, 2017 4:05:56 PM >> To: user@hbase.apache.org >> Subject: Baffling situation with tableExists and createTable >> >> I have a super simple piece of code which tries to create a test >> table if it does not exist >> >> calling admin.tableExists(TableName.valueOf(table)) returns false >> causing the control to be passed to the line that creates it >> admin.createTable(tableDescriptor). >> Then i get an exception that the table exists! >> >> Exception in thread "main" org.apache.hadoop.hbase.TableExistsException: >> LoadTest >> >> >> String table = config.tableName; >> ... >> Connection conn = ConnectionFactory.createConnection(hbaseconf); >> Admin admin = conn.getAdmin(); >> if(!admin.tableExists(TableName.valueOf(table))) { >> Log.info("table " + table + " does not exist. Creating it..."); >> HTableDescriptor tableDescriptor = new HTableDescriptor(TableName. >> valueOf(table)); >> tableDescriptor.addFamily(new HColumnDescriptor(config.FAMILY)); >> admin.createTable(tableDescriptor); >> } >> >> Jeff >>
Re: Baffling situation with tableExists and createTable
yes i had to go to zookeeper and manually delete a node under Tables my question is why there are multiple standards in how tables are handled The same logic that is in tableExists() should exist in createTable() and vice versa From: ashish singhi <ashish.sin...@huawei.com> Sent: Wednesday, April 26, 2017 2:29:49 AM To: user@hbase.apache.org Subject: RE: Baffling situation with tableExists and createTable This is already handled through Procedure-V2 code in HBase 1.1+ versions. Regards, Ashish -Original Message- From: Anoop John [mailto:anoop.hb...@gmail.com] Sent: 26 April 2017 15:31 To: user@hbase.apache.org Subject: Re: Baffling situation with tableExists and createTable Ur earlier attempt to create this table would have failed in btw.. So the status of the table in zk and in master may be diff.. Table exist might be checking one and the next steps of crate table another.. Sorry forgot that area of code.. But have seen this kind of situation. Not sure whether in some latest versions, these kind of probs are solved or not. -Anoop- On Wed, Apr 26, 2017 at 6:12 AM, Ted Yu <yuzhih...@gmail.com> wrote: > Which hbase release are you using ? > > Can you check master log to see if there is some clue w.r.t. LoadTest ? > > Using "hbase zkcli", you can inspect the znode status. Below is a sample: > > [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 2] > ls /hbase-unsecure/table [hbase:meta, hbase:namespace, > IntegrationTestBigLinkedList, datatsv, usertable, hbase:backup, > TestTable, t2] > [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 3] > ls > /hbase-unsecure/table/2 > Node does not exist: /hbase-unsecure/table/2 > [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 4] > ls > /hbase-unsecure/table/t2 > [] > [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 5] > get > /hbase-unsecure/table/t2 > master:16000K W , PBUF > cZxid = 0x1000a7f01 > ctime = Mon Mar 27 16:50:52 UTC 2017 > mZxid = 0x1000a7f17 > mtime = Mon Mar 27 16:50:52 UTC 2017 > pZxid = 0x1000a7f01 > cversion = 0 > dataVersion = 2 > > On Tue, Apr 25, 2017 at 4:09 PM, jeff saremi <jeffsar...@hotmail.com> wrote: > >> BTW on the page >> http://localhost:16010/master-status#userTables >> there is no sign of the supposedly existing table either >> >> ____ >> From: jeff saremi <jeffsar...@hotmail.com> >> Sent: Tuesday, April 25, 2017 4:05:56 PM >> To: user@hbase.apache.org >> Subject: Baffling situation with tableExists and createTable >> >> I have a super simple piece of code which tries to create a test >> table if it does not exist >> >> calling admin.tableExists(TableName.valueOf(table)) returns false >> causing the control to be passed to the line that creates it >> admin.createTable(tableDescriptor). >> Then i get an exception that the table exists! >> >> Exception in thread "main" org.apache.hadoop.hbase.TableExistsException: >> LoadTest >> >> >> String table = config.tableName; >> ... >> Connection conn = ConnectionFactory.createConnection(hbaseconf); >> Admin admin = conn.getAdmin(); >> if(!admin.tableExists(TableName.valueOf(table))) { >> Log.info("table " + table + " does not exist. Creating it..."); >> HTableDescriptor tableDescriptor = new HTableDescriptor(TableName. >> valueOf(table)); >> tableDescriptor.addFamily(new HColumnDescriptor(config.FAMILY)); >> admin.createTable(tableDescriptor); >> } >> >> Jeff >>
RE: Baffling situation with tableExists and createTable
This is already handled through Procedure-V2 code in HBase 1.1+ versions. Regards, Ashish -Original Message- From: Anoop John [mailto:anoop.hb...@gmail.com] Sent: 26 April 2017 15:31 To: user@hbase.apache.org Subject: Re: Baffling situation with tableExists and createTable Ur earlier attempt to create this table would have failed in btw.. So the status of the table in zk and in master may be diff.. Table exist might be checking one and the next steps of crate table another.. Sorry forgot that area of code.. But have seen this kind of situation. Not sure whether in some latest versions, these kind of probs are solved or not. -Anoop- On Wed, Apr 26, 2017 at 6:12 AM, Ted Yu <yuzhih...@gmail.com> wrote: > Which hbase release are you using ? > > Can you check master log to see if there is some clue w.r.t. LoadTest ? > > Using "hbase zkcli", you can inspect the znode status. Below is a sample: > > [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 2] > ls /hbase-unsecure/table [hbase:meta, hbase:namespace, > IntegrationTestBigLinkedList, datatsv, usertable, hbase:backup, > TestTable, t2] > [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 3] > ls > /hbase-unsecure/table/2 > Node does not exist: /hbase-unsecure/table/2 > [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 4] > ls > /hbase-unsecure/table/t2 > [] > [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 5] > get > /hbase-unsecure/table/t2 > master:16000K W , PBUF > cZxid = 0x1000a7f01 > ctime = Mon Mar 27 16:50:52 UTC 2017 > mZxid = 0x1000a7f17 > mtime = Mon Mar 27 16:50:52 UTC 2017 > pZxid = 0x1000a7f01 > cversion = 0 > dataVersion = 2 > > On Tue, Apr 25, 2017 at 4:09 PM, jeff saremi <jeffsar...@hotmail.com> wrote: > >> BTW on the page >> http://localhost:16010/master-status#userTables >> there is no sign of the supposedly existing table either >> >> ____ >> From: jeff saremi <jeffsar...@hotmail.com> >> Sent: Tuesday, April 25, 2017 4:05:56 PM >> To: user@hbase.apache.org >> Subject: Baffling situation with tableExists and createTable >> >> I have a super simple piece of code which tries to create a test >> table if it does not exist >> >> calling admin.tableExists(TableName.valueOf(table)) returns false >> causing the control to be passed to the line that creates it >> admin.createTable(tableDescriptor). >> Then i get an exception that the table exists! >> >> Exception in thread "main" org.apache.hadoop.hbase.TableExistsException: >> LoadTest >> >> >> String table = config.tableName; >> ... >> Connection conn = ConnectionFactory.createConnection(hbaseconf); >> Admin admin = conn.getAdmin(); >> if(!admin.tableExists(TableName.valueOf(table))) { >> Log.info("table " + table + " does not exist. Creating it..."); >> HTableDescriptor tableDescriptor = new HTableDescriptor(TableName. >> valueOf(table)); >> tableDescriptor.addFamily(new HColumnDescriptor(config.FAMILY)); >> admin.createTable(tableDescriptor); >> } >> >> Jeff >>
Re: Baffling situation with tableExists and createTable
Ur earlier attempt to create this table would have failed in btw.. So the status of the table in zk and in master may be diff.. Table exist might be checking one and the next steps of crate table another.. Sorry forgot that area of code.. But have seen this kind of situation. Not sure whether in some latest versions, these kind of probs are solved or not. -Anoop- On Wed, Apr 26, 2017 at 6:12 AM, Ted Yu <yuzhih...@gmail.com> wrote: > Which hbase release are you using ? > > Can you check master log to see if there is some clue w.r.t. LoadTest ? > > Using "hbase zkcli", you can inspect the znode status. Below is a sample: > > [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 2] ls > /hbase-unsecure/table > [hbase:meta, hbase:namespace, IntegrationTestBigLinkedList, datatsv, > usertable, hbase:backup, TestTable, t2] > [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 3] ls > /hbase-unsecure/table/2 > Node does not exist: /hbase-unsecure/table/2 > [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 4] ls > /hbase-unsecure/table/t2 > [] > [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 5] get > /hbase-unsecure/table/t2 > �master:16000K��W�,�PBUF > cZxid = 0x1000a7f01 > ctime = Mon Mar 27 16:50:52 UTC 2017 > mZxid = 0x1000a7f17 > mtime = Mon Mar 27 16:50:52 UTC 2017 > pZxid = 0x1000a7f01 > cversion = 0 > dataVersion = 2 > > On Tue, Apr 25, 2017 at 4:09 PM, jeff saremi <jeffsar...@hotmail.com> wrote: > >> BTW on the page >> http://localhost:16010/master-status#userTables >> there is no sign of the supposedly existing table either >> >> ____ >> From: jeff saremi <jeffsar...@hotmail.com> >> Sent: Tuesday, April 25, 2017 4:05:56 PM >> To: user@hbase.apache.org >> Subject: Baffling situation with tableExists and createTable >> >> I have a super simple piece of code which tries to create a test table if >> it does not exist >> >> calling admin.tableExists(TableName.valueOf(table)) returns false causing >> the control to be passed to the line that creates it >> admin.createTable(tableDescriptor). >> Then i get an exception that the table exists! >> >> Exception in thread "main" org.apache.hadoop.hbase.TableExistsException: >> LoadTest >> >> >> String table = config.tableName; >> ... >> Connection conn = ConnectionFactory.createConnection(hbaseconf); >> Admin admin = conn.getAdmin(); >> if(!admin.tableExists(TableName.valueOf(table))) { >> Log.info("table " + table + " does not exist. Creating it..."); >> HTableDescriptor tableDescriptor = new HTableDescriptor(TableName. >> valueOf(table)); >> tableDescriptor.addFamily(new HColumnDescriptor(config.FAMILY)); >> admin.createTable(tableDescriptor); >> } >> >> Jeff >>
Re: Baffling situation with tableExists and createTable
Which hbase release are you using ? Can you check master log to see if there is some clue w.r.t. LoadTest ? Using "hbase zkcli", you can inspect the znode status. Below is a sample: [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 2] ls /hbase-unsecure/table [hbase:meta, hbase:namespace, IntegrationTestBigLinkedList, datatsv, usertable, hbase:backup, TestTable, t2] [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 3] ls /hbase-unsecure/table/2 Node does not exist: /hbase-unsecure/table/2 [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 4] ls /hbase-unsecure/table/t2 [] [zk: cn011.x.com:2181,cn013.x.com:2181,cn012.x.com:2181(CONNECTED) 5] get /hbase-unsecure/table/t2 �master:16000K��W�,�PBUF cZxid = 0x1000a7f01 ctime = Mon Mar 27 16:50:52 UTC 2017 mZxid = 0x1000a7f17 mtime = Mon Mar 27 16:50:52 UTC 2017 pZxid = 0x1000a7f01 cversion = 0 dataVersion = 2 On Tue, Apr 25, 2017 at 4:09 PM, jeff saremi <jeffsar...@hotmail.com> wrote: > BTW on the page > http://localhost:16010/master-status#userTables > there is no sign of the supposedly existing table either > > > From: jeff saremi <jeffsar...@hotmail.com> > Sent: Tuesday, April 25, 2017 4:05:56 PM > To: user@hbase.apache.org > Subject: Baffling situation with tableExists and createTable > > I have a super simple piece of code which tries to create a test table if > it does not exist > > calling admin.tableExists(TableName.valueOf(table)) returns false causing > the control to be passed to the line that creates it > admin.createTable(tableDescriptor). > Then i get an exception that the table exists! > > Exception in thread "main" org.apache.hadoop.hbase.TableExistsException: > LoadTest > > > String table = config.tableName; > ... > Connection conn = ConnectionFactory.createConnection(hbaseconf); > Admin admin = conn.getAdmin(); > if(!admin.tableExists(TableName.valueOf(table))) { > Log.info("table " + table + " does not exist. Creating it..."); > HTableDescriptor tableDescriptor = new HTableDescriptor(TableName. > valueOf(table)); > tableDescriptor.addFamily(new HColumnDescriptor(config.FAMILY)); > admin.createTable(tableDescriptor); > } > > Jeff >
Re: Baffling situation with tableExists and createTable
BTW on the page http://localhost:16010/master-status#userTables there is no sign of the supposedly existing table either From: jeff saremi <jeffsar...@hotmail.com> Sent: Tuesday, April 25, 2017 4:05:56 PM To: user@hbase.apache.org Subject: Baffling situation with tableExists and createTable I have a super simple piece of code which tries to create a test table if it does not exist calling admin.tableExists(TableName.valueOf(table)) returns false causing the control to be passed to the line that creates it admin.createTable(tableDescriptor). Then i get an exception that the table exists! Exception in thread "main" org.apache.hadoop.hbase.TableExistsException: LoadTest String table = config.tableName; ... Connection conn = ConnectionFactory.createConnection(hbaseconf); Admin admin = conn.getAdmin(); if(!admin.tableExists(TableName.valueOf(table))) { Log.info("table " + table + " does not exist. Creating it..."); HTableDescriptor tableDescriptor = new HTableDescriptor(TableName.valueOf(table)); tableDescriptor.addFamily(new HColumnDescriptor(config.FAMILY)); admin.createTable(tableDescriptor); } Jeff
Baffling situation with tableExists and createTable
I have a super simple piece of code which tries to create a test table if it does not exist calling admin.tableExists(TableName.valueOf(table)) returns false causing the control to be passed to the line that creates it admin.createTable(tableDescriptor). Then i get an exception that the table exists! Exception in thread "main" org.apache.hadoop.hbase.TableExistsException: LoadTest String table = config.tableName; ... Connection conn = ConnectionFactory.createConnection(hbaseconf); Admin admin = conn.getAdmin(); if(!admin.tableExists(TableName.valueOf(table))) { Log.info("table " + table + " does not exist. Creating it..."); HTableDescriptor tableDescriptor = new HTableDescriptor(TableName.valueOf(table)); tableDescriptor.addFamily(new HColumnDescriptor(config.FAMILY)); admin.createTable(tableDescriptor); } Jeff