On Wed, Sep 24, 2014 at 2:48 AM, Dilip kumar <dilip.ku...@huawei.com> wrote:
> On 24 August 2014 11:33, Amit Kapila Wrote > > > > Thanks for you comments, i have worked on both the review comment lists, > sent on 19 August, and 24 August. > > > > Latest patch is attached with the mail.. > Hi Dilip, I think you have an off-by-one error in the index into the array of file handles. vacuumdb runs at full CPU, and if I run: strace -ttt -T -f ../parallel_vac/bin/vacuumdb -z -a -j 8 I get the select returning immediately with a bad file descriptor error: 1411663937.641177 select(55, [4 5 6 7 8 9 10 54], NULL, NULL, NULL) = -1 EBADF (Bad file descriptor) <0.000012> 1411663937.641232 recvfrom(3, 0x104e3f0, 16384, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) <0.000012> 1411663937.641279 recvfrom(4, 0x1034bc0, 16384, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) <0.000011> 1411663937.641326 recvfrom(5, 0x10017c0, 16384, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) <0.000014> 1411663937.641415 recvfrom(6, 0x10097e0, 16384, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) <0.000020> 1411663937.641487 recvfrom(7, 0x1012330, 16384, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) <0.000013> 1411663937.641538 recvfrom(8, 0x101af00, 16384, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) <0.000011> 1411663937.641584 recvfrom(9, 0x1023af0, 16384, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) <0.000012> 1411663937.641631 recvfrom(10, 0x1054600, 16384, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) <0.000012> Cheers, Jeff
