dovecot fts hangs on search

Sat May 5 09:15:57 EEST 2018

Hello Teemu,

I am working on this today.

The errors I have might be an artefact of the virtual machine I am using 
(KVM), especially the multiple snapshots. I will send a confirmation 
when I am sure.

However, I had some difficulties understanding the principle of the 
original script, and how it runs. Perhaps the documentation can be 
improved a little bit.

Kind regards,
André

On 04/05/18 07:11, Teemu Huovila wrote:
> Hello
> 
> Could you plese
> 1. send the full output of doveconf -n
> 2. Check the SOLR logs for any errors
> 3. Describe your dovecot architecture, ie. if  you are running a single backend or a more complex configuration.
> 4. Provide a backtrace of the core dump using the instructions on https://dovecot.org/bugreport.html
> 
> br,
> Teemu
> 
> On 04.05.2018 01:13, André Rodier wrote:
>> On 02/05/18 22:17, André Rodier wrote:
>>> On 02/05/18 11:45, André Rodier wrote:
>>>> On 2018-05-01 21:29, André Rodier wrote:
>>>>> On 2018-05-01 07:22, André Rodier wrote:
>>>>>> Hello,
>>>>>>
>>>>>> I am trying to use Doevecot fts, with solr the script provided.
>>>>>>
>>>>>> To rebuild the index, I use the command:
>>>>>> doveadm -D index -u mirina 'inbox'
>>>>>>
>>>>>> To rescan, I use: doveadm -D fts rescan -u mirina
>>>>>>
>>>>>> But when I do a search, with doveadm, the program hangs:
>>>>>>
>>>>>> doveadm -D search -u mirina text Madagascar
>>>>>>
>>>>>>> Debug: Loading modules from directory: /usr/lib/dovecot/modules
>>>>>>> Debug: Module loaded: /usr/lib/dovecot/modules/lib10_quota_plugin.so
>>>>>>> Debug: Module loaded: /usr/lib/dovecot/modules/lib20_fts_plugin.so
>>>>>>> Debug: Module loaded: /usr/lib/dovecot/modules/lib21_fts_solr_plugin.so
>>>>>>> Debug: Loading modules from directory: /usr/lib/dovecot/modules/doveadm
>>>>>>> Debug: Skipping module doveadm_acl_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/lib10_doveadm_acl_plugin.so: undefined symbol: acl_lookup_dict_iterate_visible_next (this is usually intentional, so just ignore this message)
>>>>>>> Debug: Skipping module doveadm_expire_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/lib10_doveadm_expire_plugin.so: undefined symbol: expire_set_deinit (this is usually intentional, so just ignore this message)
>>>>>>> Debug: Module loaded: /usr/lib/dovecot/modules/doveadm/lib10_doveadm_quota_plugin.so
>>>>>>> Debug: Module loaded: /usr/lib/dovecot/modules/doveadm/lib10_doveadm_sieve_plugin.so
>>>>>>> Debug: Skipping module doveadm_fts_lucene_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/lib20_doveadm_fts_lucene_plugin.so: undefined symbol: lucene_index_iter_deinit (this is usually intentional, so just ignore this m$
>>>>>>> ssage)
>>>>>>> Debug: Module loaded: /usr/lib/dovecot/modules/doveadm/lib20_doveadm_fts_plugin.so
>>>>>>> Debug: Skipping module doveadm_mail_crypt_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/libdoveadm_mail_crypt_plugin.so: undefined symbol: mail_crypt_box_get_pvt_digests (this is usually intentional, so just ignore thi$ message)
>>>>>>> doveadm(mirina): Debug: auth USER input: mirina home=/home/users/mirina uid=1002 gid=1001 mail=mirina at homebox.space
>>>>>>> doveadm(mirina): Debug: Added userdb setting: mail=mirina at homebox.space doveadm(mirina): Debug: Effective uid=1002, gid=1001, home=/home/users/mirina
>>>>>>> doveadm(mirina): Debug: Quota root: name=User quota backend=maildir args=
>>>>>>> doveadm(mirina): Debug: Quota rule: root=User quota mailbox=* bytes=2147483648 messages=0
>>>>>>> doveadm(mirina): Debug: Quota grace: root=User quota bytes=214748364 (10%)
>>>>>>> doveadm(mirina): Debug: Namespace inbox: type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/mails/maildir:INDEX=~/mails/indexes/
>>>>>>> doveadm(mirina): Debug: maildir++: root=/home/users/mirina/mails/maildir, index=/home/users/mirina/mails/indexes, indexpvt=, control=, inbox=/home/users/mirina/mails/maildir, alt=
>>>>>>> doveadm(mirina): Debug: quota: quota_over_flag check: STORAGE ret=1 value=134 limit=2097152
>>>>>>> doveadm(mirina): Debug: quota: quota_over_flag check: MESSAGE ret=0 value=3 limit=0
>>>>>>> doveadm(mirina): Debug: quota: quota_over_flag=0((null)) vs currently overquota=0
>>>>>>> doveadm(mirina): Debug: Namespace : Using permissions from /home/users/mirina/mails/maildir: mode=0700 gid=default
>>>>>>> doveadm(mirina): Debug: http-client: host localhost: Host created
>>>>>>> doveadm(mirina): Debug: http-client: host localhost: DNS lookup successful; got 2 IPs
>>>>>>> doveadm(mirina): Debug: http-client: peer [::1]:8080: Peer created
>>>>>>> doveadm(mirina): Debug: http-client: queue http://localhost:8080: Setting up connection to [::1]:8080 (1 requests pending)
>>>>>>> doveadm(mirina): Debug: http-client: peer [::1]:8080: Linked queue http://localhost:8080 (1 queues linked)
>>>>>>> doveadm(mirina): Debug: http-client: queue http://localhost:8080: Started new connection to [::1]:8080
>>>>>>> doveadm(mirina): Debug: http-client: request [Req1: GET http://localhost:8080/solr/select?fl=uid,score&rows=1&sort=uid+asc&q=%7b!lucene+q.op%3dAND%7d(hdr:Madagascar+OR+body:Madagascar)&fq=%2Bbox:838a1701af1ae65a3e12000032c62018+%2Buser:mi$
>>>>>>> ina]: Submitted
>>>>>>> doveadm(mirina): Debug: http-client: Waiting for 1 requests to finish
>>>>>>> doveadm(mirina): Debug: http-client: peer [::1]:8080: Creating 1 new connections to handle requests (already 0 usable, connecting to 0, closing 0)
>>>>>>> doveadm(mirina): Debug: http-client: peer [::1]:8080: Making new connection 1 of 1
>>>>>>> doveadm(mirina): Debug: http-client: conn [::1]:8080 [0]: HTTP connection created (1 parallel connections exist)
>>>>>>> doveadm(mirina): Debug: http-client: conn [::1]:8080 [0]: Connected
>>>>>>> doveadm(mirina): Debug: http-client: conn [::1]:8080 [0]: Ready for requests
>>>>>>> doveadm(mirina): Debug: http-client: peer [::1]:8080: Successfully connected (connections=1)
>>>>>>> doveadm(mirina): Debug: http-client: peer [::1]:8080: Using 1 idle connections to handle 1 requests (1 total connections ready)
>>>>>>> doveadm(mirina): Debug: http-client: queue http://localhost:8080: Connection to peer [::1]:8080 claimed request [Req1: GET http://localhost:8080/solr/select?fl=uid,score&rows=1&sort=uid+asc&q=%7b!lucene+q.op%3dAND%7d(hdr:Madagascar+OR+bod$
>>>>>>> :Madagascar)&fq=%2Bbox:838a1701af1ae65a3e12000032c62018+%2Buser:mirina]
>>>>>>> doveadm(mirina): Debug: http-client: conn [::1]:8080 [0]: Claimed request [Req1: GET http://localhost:8080/solr/select?fl=uid,score&rows=1&sort=uid+asc&q=%7b!lucene+q.op%3dAND%7d(hdr:Madagascar+OR+body:Madagascar)&fq=%2Bbox:838a1701af1ae6$
>>>>>>> a3e12000032c62018+%2Buser:mirina]
>>>>>>> [...]
>>>>>>> doveadm(mirina): Debug: http-client: request [Req5: GET http://localhost:8080/solr/select?fl=uid,score&rows=1&sort=uid+asc&q=%7b!lucene+q.op%3dAND%7d(hdr:Madagascar+OR+body:Madagascar)&fq=%2Bbox:6dd14d3aae1ae65a3e12000032c62018+%2Buser:mirina]: Sent header
>>>>>>> doveadm(mirina): Debug: http-client: peer [::1]:8080: No more requests to service for this peer (1 connections exist)
>>>>>>> doveadm(mirina): Debug: http-client: conn [::1]:8080 [0]: Got 200 response for request [Req5: GET http://localhost:8080/solr/select?fl=uid,score&rows=1&sort=uid+asc&q=%7b!lucene+q.op%3dAND%7d(hdr:Madagascar+OR+body:Madagascar)&fq=%2Bbox:6dd14d3aae1ae65a3e12000032c62018+%2Buser:mirina] (took 2 ms + 0 ms in queue)
>>>>>>> doveadm(mirina): Debug: http-client: conn [::1]:8080 [0]: Response payload stream destroyed (0 ms after initial response)
>>>>>>> doveadm(mirina): Debug: http-client: request [Req5: GET http://localhost:8080/solr/select?fl=uid,score&rows=1&sort=uid+asc&q=%7b!lucene+q.op%3dAND%7d(hdr:Madagascar+OR+body:Madagascar)&fq=%2Bbox:6dd14d3aae1ae65a3e12000032c62018+%2Buser:mirina]: Finished
>>>>>>> doveadm(mirina): Debug: http-client: queue http://localhost:8080: Dropping request [Req5: GET http://localhost:8080/solr/select?fl=uid,score&rows=1&sort=uid+asc&q=%7b!lucene+q.op%3dAND%7d(hdr:Madagascar+OR+body:Madagascar)&fq=%2Bbox:6dd14d3aae1ae65a3e12000032c62018+%2Buser:mirina]
>>>>>>> doveadm(mirina): Debug: http-client: host localhost: Host is idle (timeout = 1799974 msecs)
>>>>>>> doveadm(mirina): Debug: http-client: request [Req5: GET http://localhost:8080/solr/select?fl=uid,score&rows=1&sort=uid+asc&q=%7b!lucene+q.op%3dAND%7d(hdr:Madagascar+OR+body:Madagascar)&fq=%2Bbox:6dd14d3aae1ae65a3e12000032c62018+%2Buser:mirina]: Free (requests left=1)
>>>>>>> doveadm(mirina): Debug: http-client: All requests finished
>>>>>>
>>>>>> When I do the search with an imap client, I have this error after a
>>>>>> long timeout:
>>>>>>
>>>>>>> May 01 07:08:58 homebox dovecot[5683]: imap(mirina): Panic: file imap-client.c: line 854 (client_check_command_hangs): assertion failed: (client->io != NULL || (client->output_cmd_lock != NULL && client->output_cmd_lock != client->input_lock))
>>>>>>> May 01 07:08:58 homebox dovecot[5683]: imap(mirina): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x95e92) [0x7f216b6f6e92] -> /usr/lib/dovecot/libdovecot.so.0(+0x95f8d) [0x7f216b6f6f8d] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f216b68ca91] -> dovecot/imap(client_continue_pending_input+0x1fc) [0x55f44a7eb15c] -> dovecot/imap(client_input+0x120) [0x55f44a7eb460] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x52) [0x7f216b70b9f2] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x109) [0x7f216b70d029] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x3c) [0x7f216b70ba8c] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f216b70bc38] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f216b692fd3] -> dovecot/imap(main+0x328) [0x55f44a7dde68] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7f216b2e22e1] -> dovecot/imap(_start+0x2a) [0x55f44a7ddfea]
>>>>>>> May 01 07:08:58 homebox dovecot[5683]: imap(mirina): Fatal: master: service(imap): child 6149 killed with signal 6 (core dumps disabled)
>>>>>>> May 01 07:08:58 homebox in.imapproxyd[20305]: Raw_Proxy(): IMAP server unexpectedly closed the connection on sd 11
>>>>>>
>>>>>> My 10-master.conf:
>>>>>>
>>>>>> service decode2text {
>>>>>>    executable = script /usr/local/bin/decode2text.sh
>>>>>>    user = dovecot
>>>>>>    unix_listener decode2text {
>>>>>>      mode = 0666
>>>>>>    }
>>>>>> }
>>>>>>
>>>>>> And my 90-plugins.cof:
>>>>>>    # Add dovecot fts config
>>>>>>    fts = solr
>>>>>>    fts_autoindex = no
>>>>>>    fts_solr = url=http://localhost:8080/solr/ debug
>>>>>>    fts_decoder = decode2text
>>>>>>
>>>>>> Am I doing anything wrong?
>>>>>>
>>>>>> Thanks for your help.
>>>>>>
>>>>>> André
>>>>>
>>>>> hello again,
>>>>>
>>>>> The issue is not solved, but I have been able to see an error message:
>>>>> indexer-worker(andre): Error: parser script didn't send any data
>>>>>
>>>>> This is weird, because 1) this error is intermittent, 2) I explicitly
>>>>> modified the script to echo a specific word in al the cases.
>>>>>
>>>>> Any idea, someone?
>>>>>
>>>>> Thanks
>>>>
>>>> Hello again,
>>>>
>>>> I am still having this issue.
>>>>
>>>> The inbox I am testing has only three emails, with three attachments. The same document in doc, pdf and odt...
>>>>
>>>> Thanks for your help and advice, if you have any.
>>>>
>>>> Kind regards,
>>>> André
>>>
>>> Hello again, I really hope to find some Dovecot support on this list.
>>>
>>> On Debian stretch, I have tried versions from stable (2.2.27-3+deb9u2) and from the backports (2.2.34-2~bpo9+1)
>>>
>>> None of the version works. The operation doveadm search, or by imap is frozen...Even if I use the exact script provided by Dovecot decode2txt.sh.
>>>
>>> Any idea from the Dovecot core team would be nice.
>>>
>>> Thanks.
>>> André Rodier.
>>
>> Hello - again,
>>
>> I can only find a few explanations for the lack of answers to my questions..
>>
>> If nobody knows how the dovecot fts code works anymore, it's OK, just just tell, so I stop searching what I am doing wrong...
>>
>> If Dovecot team is planing to push another fts engine, it's OK as well, but I need to know...
>>
>> I am loosing a lot of time on this, and I start to be upset.
>>
>> To summarise:
>>
>> - I have a custom script that extract text from attachments, for instance doc or pdf files.
>> - I successfully tested my script on the command line, and it returns the right text every time, in a few ms. I use a one page doc or pdf, with just a paragraph.
>> - When using the dovecot search function with the same documents attached to an email, I have a timeout, and sometimes an error message.
>>
>> My dovecot plugin configuration:
>>
>>>    fts = solr
>>>    fts_solr = url=http://localhost:8080/solr/
>>>    fts_decoder = decode2text
>>>    fts_index_timeout = 10
>>
>> The script is a non modified version of decode2text provided by the Dovecot installation.
>>
>> Please, just point me in some direction.
>>
>> André Rodier.