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Perl

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perl からpgpoolへの接続について

退会済みユーザー

退会済みユーザー

総合スコア0

Perl

Perlは多目的に使用される実用性が高い動的プログラミング言語のひとつです。

PostgreSQL

PostgreSQLはオープンソースのオブジェクトリレーショナルデータベース管理システムです。 Oracle Databaseで使われるPL/SQLを参考に実装されたビルトイン言語で、Windows、 Mac、Linux、UNIX、MSなどいくつものプラットフォームに対応しています。

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投稿2017/02/12 09:35

編集2017/02/12 11:19

困ったこと

perlのDBD::Pgからpgpoolを通しqueryを流すと帰ってこない現象がおきております。
参考にデバッグの出力を添付します。
どなたかこの問題を解消してdbへqueryを投げ結果を取得できる方法をご存知ないでしょうか?

DEBUG: selecting load balance node DETAIL: selected backend id is 0 DEBUG: initializing session context DETAIL: selected load balancing node: 0 DEBUG: session context: unsetting query in progress. DONE DEBUG: session context: clearing transaction isolation. DONE DEBUG: session context: clearing writing transaction. DONE DEBUG: session context: clearing failed transaction. DONE DEBUG: session context: clearing failed transaction. DONE DEBUG: session context: clearing skip reading from backends. DONE DEBUG: session context: clearing ignore till sync. DONE DEBUG: pool_use_sync_map: we cannot use sync map because STREAM: 0 query in progress: 0 doing extended query: 0 DEBUG: reading backend data packet kind DETAIL: master node id: 0 DEBUG: reading backend data packet kind DETAIL: backend:0 kind:'Z' DEBUG: reading backend data packet kind DETAIL: backend:0 of 2 kind = 'Z' DEBUG: read_kind_from_backend max_count:1.000000 num_executed_nodes:1 DEBUG: processing backend response DETAIL: received kind 'Z'(5a) from backend DEBUG: processing backend response DETAIL: Ready For Query received DEBUG: session context: clearing ignore till sync. DONE DEBUG: pool_use_sync_map: we cannot use sync map because STREAM: 0 query in progress: 0 doing extended query: 0 DEBUG: pool_use_sync_map: we cannot use sync map because STREAM: 0 query in progress: 0 doing extended query: 0 DEBUG: pool_use_sync_map: we cannot use sync map because STREAM: 0 query in progress: 0 doing extended query: 0 DEBUG: reading message length DETAIL: slot: 0 length: 5 DEBUG: processing ReadyForQuery DETAIL: transaction state ' DEBUG: processing frontend response DETAIL: received kind 'Q'(51) from frontend DEBUG: session context: clearing doing extended query messaging. DONE LOG: statement: begin DEBUG: session context: setting query in progress. DONE DEBUG: decide where to send the queries DETAIL: destination = 3 for query= "begin" LOG: DB node id: 0 backend pid: 5688 statement: begin DEBUG: pool_write: to backend: 0 kind:Q DEBUG: waiting for query response DETAIL: waiting for backend:0 to complete the query DEBUG: pool_read: read 17 bytes from backend 0 DEBUG: detect error: kind: C DEBUG: detect error: kind: C DEBUG: detect error: kind: C DEBUG: detect error: kind: C DEBUG: pool_use_sync_map: we cannot use sync map because STREAM: 0 query in progress: 1 doing extended query: 0 DEBUG: reading backend data packet kind DETAIL: master node id: 0 DEBUG: reading backend data packet kind DETAIL: backend:0 kind:'C' DEBUG: reading backend data packet kind DETAIL: backend:0 of 2 kind = 'C' DEBUG: read_kind_from_backend max_count:1.000000 num_executed_nodes:1 DEBUG: processing backend response DETAIL: received kind 'C'(43) from backend DEBUG: session context: clearing writing transaction. DONE DEBUG: session context: clearing failed transaction. DONE DEBUG: session context: clearing failed transaction. DONE DEBUG: session context: setting command success. DONE DEBUG: pool_use_sync_map: we cannot use sync map because STREAM: 0 query in progress: 1 doing extended query: 0 DEBUG: reading backend data packet kind DETAIL: master node id: 0 DEBUG: reading backend data packet kind DETAIL: backend:0 kind:'Z' DEBUG: reading backend data packet kind DETAIL: backend:0 of 2 kind = 'Z' DEBUG: read_kind_from_backend max_count:1.000000 num_executed_nodes:1 DEBUG: processing backend response DETAIL: received kind 'Z'(5a) from backend DEBUG: processing backend response DETAIL: Ready For Query received DEBUG: session context: clearing ignore till sync. DONE DEBUG: pool_use_sync_map: we cannot use sync map because STREAM: 0 query in progress: 1 doing extended query: 0 DEBUG: pool_use_sync_map: we cannot use sync map because STREAM: 0 query in progress: 1 doing extended query: 0 DEBUG: pool_use_sync_map: we cannot use sync map because STREAM: 0 query in progress: 1 doing extended query: 0 DEBUG: reading message length DETAIL: slot: 0 length: 5 DEBUG: processing ReadyForQuery DETAIL: transaction state 'T'(54) DEBUG: session context: clearing writing transaction. DONE DEBUG: session context: clearing failed transaction. DONE DEBUG: session context: clearing failed transaction. DONE DEBUG: session context: unsetting query in progress. DONE DEBUG: session context: unsetting query in progress. DONE DEBUG: processing frontend response DETAIL: received kind 'P'(50) from frontend DEBUG: session context: clearing doing extended query messaging. DONE DEBUG: session context: setting doing extended query messaging. DONE DEBUG: Parse: statement name <> DEBUG: session context: setting query in progress. DONE DEBUG: checking if query has INSERT INTO, FOR SHARE or FOR UPDATE DETAIL: result = 0 DEBUG: decide where to send the queries DETAIL: destination = 2 for query= "SELECT version();" DEBUG: do_query: extended:1 query:"SELECT current_setting('transaction_isolation')" DEBUG: pool_write: to backend: 0 kind:P DEBUG: pool_write: to backend: 0 kind:B DEBUG: pool_write: to backend: 0 kind:C DEBUG: pool_write: to backend: 0 kind:S DEBUG: pool_write: to backend: 0 kind:E DEBUG: pool_write: to backend: 0 kind:C DEBUG: pool_write: to backend: 0 kind:P DEBUG: pool_write: to backend: 0 kind:S DEBUG: pool_read: read 65 bytes from backend 0 DEBUG: do_query: kind: '1' DEBUG: do_query: received PARSE COMPLETE ('1') DEBUG: do_query: kind: '2' DEBUG: do_query: received BIND COMPLETE ('2') DEBUG: do_query: kind: '3' DEBUG: do_query: received CLOSE COMPLETE ('3') DEBUG: do_query: kind: 'D' DEBUG: do_query: received DATA ROW ('D') DEBUG: do_query: kind: 'C' DEBUG: do_query: received COMMAND COMPLETE ('C') DEBUG: do_query: kind: '3' DEBUG: do_query: received CLOSE COMPLETE ('3') DEBUG: do_query: kind: 'Z' DEBUG: do_query: received READY FOR QUERY ('Z') DEBUG: do_query: all state completed. returning DEBUG: function call walker, function name: "version" DEBUG: comparing function name in blacklist/whitelist regex array DETAIL: pattern_compare: black_function_list (^nextval$) not matched: version DEBUG: comparing function name in blacklist/whitelist regex array DETAIL: pattern_compare: black_function_list (^setval$) not matched: version DEBUG: comparing function name in blacklist/whitelist regex array DETAIL: pattern_compare: black_function_list (^nextval$) not matched: version DEBUG: comparing function name in blacklist/whitelist regex array DETAIL: pattern_compare: black_function_list (^setval$) not matched: version DEBUG: Parse: waiting for master completing the query LOG: DB node id: 0 backend pid: 5688 statement: Parse: SELECT version(); DEBUG: pool_send_and_wait: pool_set_sync_map: 0 DEBUG: pool_write: to backend: 0 kind:P DEBUG: pool_write: to backend: 0 kind:H DEBUG: waiting for query response DETAIL: waiting for backend:0 to complete the query DEBUG: pool_read: read 5 bytes from backend 0 DEBUG: detect error: kind: 1 DEBUG: pool_use_sync_map: we cannot use sync map because STREAM: 0 query in progress: 1 doing extended query: 1 DEBUG: reading backend data packet kind DETAIL: master node id: 0 DEBUG: reading backend data packet kind DETAIL: backend:0 kind:'1' DEBUG: reading backend data packet kind DETAIL: backend:0 of 2 kind = '1' DEBUG: read_kind_from_backend max_count:1.000000 num_executed_nodes:1 DEBUG: processing backend response DETAIL: received kind '1'(31) from backend DEBUG: called by pool_add_sent_message: sent message: address: 0x2399fc0 kind: P name: == DEBUG: pool_use_sync_map: we cannot use sync map because STREAM: 0 query in progress: 1 doing extended query: 1 DEBUG: SimpleForwardToFrontend: packet:1 length:0 DEBUG: session context: setting command success. DONE DEBUG: pool_use_sync_map: we cannot use sync map because STREAM: 0 query in progress: 1 doing extended query: 1 DEBUG: reading backend data packet kind DETAIL: master node id: 0

コード

sub get_dbh { my $dbh = undef; eval{ $dbh = DBI->connect("dbi:Pg:dbname=".$self->commons_config->{'database'}->{'dbname'}.";host=".$self->commons_config->{'database'}->{'host'}, $self->commons_config->{'database'}->{'user'}, $self->commons_config->{'database'}->{'password'}, {AutoCommit => 1, RaiseError => 1, PrintError => 0}); }; local $@; if ($@){ $u->logger($@); exit 1; } local $@; eval{ my $sth = $dbh->prepare("SELECT version();");# <-ここで固まる $sth->execute; }; if ($@){ # $u->logger($@); $u->logger('DB connection error'); exit 1; } return $dbh; }

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直接接続する方式へ変更しました。

投稿2017/02/12 11:20

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