Hi Mich, I believe the duration of locks is defined by hive.txn.timeout, which is 5 min by default. https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties
Retry your SHOW LOCKS command and check that the Last HeartBeat is not changing. If it is, it means your query is still active somehow. If it isn't, the lock should disappear by itself after the timeout. Also, I don't know if this is a known issue in Hive's Jira, but we noticed that trying to read and write data into the same table within a single query creates a deadlock. If that is what you were trying to do, you should rather write your data in a temporary file and then move it back into the table. On Fri, Oct 23, 2015 at 9:56 AM, Mich Talebzadeh <m...@peridale.co.uk> wrote: > Hi, > > > > > > What is the duration of locks held in Hive? > > > > I have got the following locks in Hive, although I have already killed the > jobs! > > > > > > Lock ID Database Table Partition State Type > Transaction ID Last Hearbeat Acquired At User Hostname > > 14031 asehadoop t NULL WAITING EXCLUSIVE NULL > 1445586539232 NULL hduser rhes564 > > 14029 asehadoop t_staging NULL ACQUIRED > SHARED_READ NULL 1445586247044 1445585940653 hduser rhes564 > > 14029 asehadoop t NULL ACQUIRED SHARED_READ > NULL 1445586247044 1445585940654 hduser rhes564 > > 14030 asehadoop t NULL WAITING EXCLUSIVE NULL > 1445586471827 NULL hduser rhes564 > > > > > > mapred job -list > > Total jobs:0 > > JobId State StartTime > UserName Queue Priority UsedContainers > RsvdContainers UsedMem RsvdMem NeededMem AM info > > > > No locks are held in metastore (Oracle in my case) as well. > > > > Thanks > > > > > > Mich Talebzadeh > > > > *Sybase ASE 15 Gold Medal Award 2008* > > A Winning Strategy: Running the most Critical Financial Data on ASE 15 > > > http://login.sybase.com/files/Product_Overviews/ASE-Winning-Strategy-091908.pdf > > Author of the books* "A Practitioner’s Guide to Upgrading to Sybase ASE > 15", ISBN 978-0-9563693-0-7*. > > co-author *"Sybase Transact SQL Guidelines Best Practices", ISBN > 978-0-9759693-0-4* > > *Publications due shortly:* > > *Complex Event Processing in Heterogeneous Environments*, ISBN: > 978-0-9563693-3-8 > > *Oracle and Sybase, Concepts and Contrasts*, ISBN: 978-0-9563693-1-4, volume > one out shortly > > > > http://talebzadehmich.wordpress.com > > > > NOTE: The information in this email is proprietary and confidential. This > message is for the designated recipient only, if you are not the intended > recipient, you should destroy it immediately. Any information in this > message shall not be understood as given or endorsed by Peridale Technology > Ltd, its subsidiaries or their employees, unless expressly so stated. It is > the responsibility of the recipient to ensure that this email is virus > free, therefore neither Peridale Ltd, its subsidiaries nor their employees > accept any responsibility. > > >
