StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
primarykey
Id
13641170
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2012-11-30T08:02:48.653
FavoriteCount
0
LastActivityDate
2015-10-20T09:34:03.763
LastEditDate
2015-10-20T09:34:03.763
LastEditorUserId
1002036
OwnerUserId
1002036
ParentId
13641169
PostTypeId
2
Score
1
ViewCount
0
LastEditorDisplayName
text
Body
The issue was in shared memory system settings (<a href="https://en.wikipedia.org/wiki/Shared_memory_(interprocess_communication)" rel="nofollow">shared memory – wiki</a>). There is parameter <code>kern.sysv.shmseg</code> in <code>/etc/sysctl.conf</code> file which represents the maximum number of shared memory segments each process can attach. So I had value 32 that was not enough for my script. To view parameters, use: <pre><code>sysctl -A | grep shm </code></pre> To update that parameters, edit file: <pre><code>sudo vim /etc/sysctl.conf </code></pre> My looks now like that: <pre><code>kern.sysv.shmmax=564777216 kern.sysv.shmmin=1 kern.sysv.shmmni=700 kern.sysv.shmseg=128 kern.sysv.shmall=131072 </code></pre> Notice, you need restart system in order to apply settings. To view currently allocated shared memory segments, type: <pre><code>ipcs -m -b </code></pre> To remove all shared memory segments: <pre><code>for n in `ipcs -b -m | egrep ^m | awk '{ print $2; }'`; do ipcrm -m $n; done </code></pre> Notice, only segments that are not attached to any process will be really removed. More on shared memory settings: <a href="http://techjournal.318.com/general-technology/shared-memory-settings-explain/" rel="nofollow">http://techjournal.318.com/general-technology/shared-memory-settings-explain/</a>, <a href="http://www.spy-hill.com/help/apple/SharedMemory.html" rel="nofollow">http://www.spy-hill.com/help/apple/SharedMemory.html</a>, <a href="http://support.apple.com/kb/HT4022" rel="nofollow">http://support.apple.com/kb/HT4022</a>
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POPython - OSError 24 (Too many open files) and shared memory
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USSerge
UserOwnerUserId
1. USSerge
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. POPython - OSError 24 (Too many open files) and shared memory
 singulars
 PostTypePostTypeId
 PTQuestion
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTAcceptedByOriginator
CommentsPostId
1. This table or related slice is empty.

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.