"create table" and "insert data" are separate. And the disk is consumed by queries. because when I finished data loading, it was, only 3~4G. Thank you for the link. I will try restart server to see if monetdb can unlink these files too. I execute queries in auto commit mode, should I control transactions myself? ------------------ Original ------------------ From: "Guillaume Savary";; Date: Thu, Sep 24, 2015 02:30 PM To: "Communication channel for MonetDB users"; Cc: "scArcer"<53308768@qq.com>; Subject: Re: Disk space running out Hi, Are you repeating this "create table + insert data" multiple times on this disk? Because there is a bug on the BAT files which are never freed : https://www.monetdb.org/bugzilla/show_bug.cgi?id=3802 Work around : try to do the "create table" in an other transaction than the "insert data". Le 24/09/2015 08:17, scArcer a écrit : Here is my situation. I create a table A, load about 3~4G data into it. Then a lot of queries are executed, making it using disk up to 1T. [hadoop@falco001-bi-30-141 data3]$ du -sh monetdb/ 1.1T monetdb/ and when I try to execute new query, I got this error: sql>select * from ods.attr_user_c_profile limit 10; could not allocate space for GDKsave: error -1 on: name=06/62/66261, ext=theap, mode=0 !OS: No space left on device HEAPextend: failed to extend to 983040 for 06/62/66261.theap: h->storage == STORE_MEM && can_map && fd >= 0 && HEAPsave_intern() < 0 ------------------ Original ------------------ From: "Martin Kersten";; Date: Thu, Sep 24, 2015 02:03 PM To: "users-list"; Subject: Re: Disk space running out On 24/09/15 06:04, scArcer wrote: > Hi, I'm facing the problem of disk space running out. > Since monetdb will store the query intermediates into the disk when the memory is not enough to hold them all, I'm wondering that does monetdb will automatically free the disk space? > And if it doesn't, how can I do it manually? > > Hi It will release disk space as soon as possible. > _______________________________________________ > users-list mailing list > users-list@monetdb.org > https://www.monetdb.org/mailman/listinfo/users-list > _______________________________________________ users-list mailing list users-list@monetdb.org https://www.monetdb.org/mailman/listinfo/users-list _______________________________________________ users-list mailing list users-list@monetdb.org https://www.monetdb.org/mailman/listinfo/users-list -- Guillaume Savary Securactive R&D