annotate pkg/imports/queue.go @ 1010:8f23ec811afb

Fixed and harmonized wording in importer queue a bit.
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Tue, 23 Oct 2018 10:14:41 +0200
parents fcf016ebdef4
children a244b18cb916
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 package imports
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2
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3 import (
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4 "context"
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5 "database/sql"
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6 "fmt"
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7 "log"
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8 "runtime/debug"
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9 "sync"
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10 "time"
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11
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12 "gemma.intevation.de/gemma/pkg/auth"
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13 "gemma.intevation.de/gemma/pkg/config"
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14 )
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15
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16 type (
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17 Feedback interface {
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18 Info(fmt string, args ...interface{})
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19 Warn(fmt string, args ...interface{})
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20 Error(fmt string, args ...interface{})
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21 }
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22
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23 Job interface {
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24 Do(*sql.Conn, Feedback) error
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25 CleanUp() error
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26 }
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27
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28 JobKind string
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29
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30 JobCreator func(kind JobKind, data string) (Job, error)
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31
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32 idJob struct {
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33 id int64
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34 kind JobKind
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35 user string
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36 data string
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37 }
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38 )
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39
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40 const pollDuration = time.Second * 10
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41
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42 var (
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43 signalChan = make(chan struct{})
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44
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45 creatorsMu sync.Mutex
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46 creators = map[JobKind]JobCreator{}
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47 )
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48
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49 const (
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50 queueUser = "sys_admin"
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51
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52 reEnqueueRunningSQL = `
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53 UPDATE waterway.imports SET state = 'queued'::waterway.import_state
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54 WHERE state = 'running'::waterway.import_state
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55 `
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56
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57 insertJobSQL = `
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58 INSERT INTO waterway.imports (
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59 kind,
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60 username,
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61 data
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62 ) VALUES (
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63 $1,
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64 $2,
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65 $3
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66 ) RETURNING id`
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67
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68 selectJobSQL = `
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69 SELECT
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70 id,
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71 kind,
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72 username,
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73 data
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74 FROM waterway.imports
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75 WHERE state = 'queued'::waterway.import_state AND enqueued IN (
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76 SELECT min(enqueued)
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77 FROM waterway.imports
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78 WHERE state = 'queued'::waterway.import_state
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79 )
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80 LIMIT 1
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81 `
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82 updateStateSQL = `
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83 UPDATE waterway.imports SET state = $1::waterway.import_state
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84 WHERE id = $2
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85 `
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86 logMessageSQL = `
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87 INSERT INTO waterway.import_logs (
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88 import_id,
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89 kind,
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90 msg
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91 ) VALUES (
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92 $1,
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93 $2::waterway.log_type,
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94 $3
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95 )`
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96 )
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97
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98 func init() {
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99 go importLoop()
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100 }
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101
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102 func RegisterJobCreator(kind JobKind, jc JobCreator) {
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103 log.Printf("info: register import job creator for kind '%s'\n", kind)
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104 creatorsMu.Lock()
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105 defer creatorsMu.Unlock()
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106 creators[kind] = jc
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107 }
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108
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109 func jobCreator(kind JobKind) JobCreator {
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110 creatorsMu.Lock()
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111 defer creatorsMu.Unlock()
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112 return creators[kind]
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113 }
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114
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115 func AddJob(kind JobKind, user, data string) (int64, error) {
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116 ctx := context.Background()
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117 var id int64
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118 err := auth.RunAs(queueUser, ctx, func(conn *sql.Conn) error {
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119 return conn.QueryRowContext(ctx, insertJobSQL, string(kind), user, data).Scan(&id)
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120 })
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121 if err == nil {
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122 select {
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123 case signalChan <- struct{}{}:
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124 default:
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125 }
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126 }
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127 return id, err
958
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parents:
diff changeset
128 }
2818ad6c7d32 Started with import queue.
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129
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diff changeset
130 type logFeedback int64
988
7dfd3db94e6d In preparation of persisting import jobs logging is done through an interface.
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131
998
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diff changeset
132 func (lf logFeedback) log(kind, format string, args ...interface{}) {
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parents: 992
diff changeset
133 ctx := context.Background()
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parents: 992
diff changeset
134 err := auth.RunAs(queueUser, ctx, func(conn *sql.Conn) error {
75e65599ea52 Persist job queue in database. WIP.
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parents: 992
diff changeset
135 _, err := conn.ExecContext(
75e65599ea52 Persist job queue in database. WIP.
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parents: 992
diff changeset
136 ctx, logMessageSQL, int64(lf), kind, fmt.Sprintf(format, args...))
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
137 return err
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
138 })
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
139 if err != nil {
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
140 log.Printf("logging failed: %v\n", err)
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parents: 992
diff changeset
141 }
988
7dfd3db94e6d In preparation of persisting import jobs logging is done through an interface.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 987
diff changeset
142 }
7dfd3db94e6d In preparation of persisting import jobs logging is done through an interface.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 987
diff changeset
143
998
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diff changeset
144 func (lf logFeedback) Info(format string, args ...interface{}) {
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parents: 992
diff changeset
145 lf.log("info", format, args...)
988
7dfd3db94e6d In preparation of persisting import jobs logging is done through an interface.
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parents: 987
diff changeset
146 }
7dfd3db94e6d In preparation of persisting import jobs logging is done through an interface.
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parents: 987
diff changeset
147
998
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diff changeset
148 func (lf logFeedback) Warn(format string, args ...interface{}) {
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parents: 992
diff changeset
149 lf.log("warn", format, args...)
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parents: 992
diff changeset
150 }
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parents: 992
diff changeset
151
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diff changeset
152 func (lf logFeedback) Error(format string, args ...interface{}) {
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parents: 992
diff changeset
153 lf.log("error", format, args...)
988
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parents: 987
diff changeset
154 }
7dfd3db94e6d In preparation of persisting import jobs logging is done through an interface.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 987
diff changeset
155
992
a978b2b26a88 Run do and cleanup of import jobs in own go routines with crash handler.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 991
diff changeset
156 func survive(fn func() error) func() error {
a978b2b26a88 Run do and cleanup of import jobs in own go routines with crash handler.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 991
diff changeset
157 return func() error {
a978b2b26a88 Run do and cleanup of import jobs in own go routines with crash handler.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 991
diff changeset
158 errCh := make(chan error)
a978b2b26a88 Run do and cleanup of import jobs in own go routines with crash handler.
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parents: 991
diff changeset
159 go func() {
a978b2b26a88 Run do and cleanup of import jobs in own go routines with crash handler.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 991
diff changeset
160 defer func() {
a978b2b26a88 Run do and cleanup of import jobs in own go routines with crash handler.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 991
diff changeset
161 if err := recover(); err != nil {
a978b2b26a88 Run do and cleanup of import jobs in own go routines with crash handler.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 991
diff changeset
162 errCh <- fmt.Errorf("%v: %s",
a978b2b26a88 Run do and cleanup of import jobs in own go routines with crash handler.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 991
diff changeset
163 err, string(debug.Stack()))
a978b2b26a88 Run do and cleanup of import jobs in own go routines with crash handler.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 991
diff changeset
164 }
a978b2b26a88 Run do and cleanup of import jobs in own go routines with crash handler.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 991
diff changeset
165 }()
a978b2b26a88 Run do and cleanup of import jobs in own go routines with crash handler.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 991
diff changeset
166 errCh <- fn()
a978b2b26a88 Run do and cleanup of import jobs in own go routines with crash handler.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 991
diff changeset
167 }()
a978b2b26a88 Run do and cleanup of import jobs in own go routines with crash handler.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 991
diff changeset
168 return <-errCh
a978b2b26a88 Run do and cleanup of import jobs in own go routines with crash handler.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 991
diff changeset
169 }
a978b2b26a88 Run do and cleanup of import jobs in own go routines with crash handler.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 991
diff changeset
170 }
a978b2b26a88 Run do and cleanup of import jobs in own go routines with crash handler.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 991
diff changeset
171
1005
fcf016ebdef4 Re-enqueue import jobs in state running if the the gemma server starts.
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parents: 1003
diff changeset
172 func reEnqueueRunning() error {
fcf016ebdef4 Re-enqueue import jobs in state running if the the gemma server starts.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1003
diff changeset
173 ctx := context.Background()
fcf016ebdef4 Re-enqueue import jobs in state running if the the gemma server starts.
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parents: 1003
diff changeset
174 return auth.RunAs(queueUser, ctx, func(conn *sql.Conn) error {
fcf016ebdef4 Re-enqueue import jobs in state running if the the gemma server starts.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1003
diff changeset
175 _, err := conn.ExecContext(ctx, reEnqueueRunningSQL)
fcf016ebdef4 Re-enqueue import jobs in state running if the the gemma server starts.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1003
diff changeset
176 return err
fcf016ebdef4 Re-enqueue import jobs in state running if the the gemma server starts.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1003
diff changeset
177 })
fcf016ebdef4 Re-enqueue import jobs in state running if the the gemma server starts.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1003
diff changeset
178 }
fcf016ebdef4 Re-enqueue import jobs in state running if the the gemma server starts.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1003
diff changeset
179
998
75e65599ea52 Persist job queue in database. WIP.
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diff changeset
180 func fetchJob() (*idJob, error) {
75e65599ea52 Persist job queue in database. WIP.
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parents: 992
diff changeset
181 var ji idJob
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
182 ctx := context.Background()
75e65599ea52 Persist job queue in database. WIP.
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parents: 992
diff changeset
183 err := auth.RunAs(queueUser, ctx, func(conn *sql.Conn) error {
75e65599ea52 Persist job queue in database. WIP.
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parents: 992
diff changeset
184 tx, err := conn.BeginTx(ctx, nil)
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
185 if err != nil {
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
186 return err
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
187 }
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
188 defer tx.Rollback()
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
189 if err = tx.QueryRowContext(ctx, selectJobSQL).Scan(
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
190 &ji.id, &ji.kind, &ji.user, &ji.data); err != nil {
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
191 return err
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
192 }
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
193 _, err = tx.ExecContext(ctx, updateStateSQL, "running", ji.id)
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
194 if err == nil {
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
195 err = tx.Commit()
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
196 }
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
197 return err
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
198 })
75e65599ea52 Persist job queue in database. WIP.
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parents: 992
diff changeset
199 switch {
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
200 case err == sql.ErrNoRows:
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
201 return nil, nil
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
202 case err != nil:
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
203 return nil, err
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
204 }
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
205 return &ji, nil
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
206 }
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
207
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
208 func updateState(id int64, state string) error {
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
209 ctx := context.Background()
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
210 return auth.RunAs(queueUser, ctx, func(conn *sql.Conn) error {
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
211 _, err := conn.ExecContext(ctx, updateStateSQL, state, id)
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
212 return err
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
213 })
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
214 }
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
215
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
216 func errorAndFail(id int64, format string, args ...interface{}) error {
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
217 ctx := context.Background()
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
218 err := auth.RunAs(queueUser, ctx, func(conn *sql.Conn) error {
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
219 tx, err := conn.BeginTx(ctx, nil)
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
220 if err != nil {
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
221 return err
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
222 }
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
223 defer tx.Rollback()
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
224 _, err = conn.ExecContext(
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
225 ctx, logMessageSQL, id, "error", fmt.Sprintf(format, args...))
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
226 if err != nil {
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
227 return err
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
228 }
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
229 _, err = conn.ExecContext(
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
230 ctx, updateStateSQL, "failed", id)
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
231 if err == nil {
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
232 err = tx.Commit()
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
233 }
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
234 return err
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
235 })
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
236 return err
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
237 }
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
238
958
2818ad6c7d32 Started with import queue.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
239 func importLoop() {
1000
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 998
diff changeset
240 config.WaitReady()
1005
fcf016ebdef4 Re-enqueue import jobs in state running if the the gemma server starts.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1003
diff changeset
241 // re-enqueue the jobs that are in state running.
fcf016ebdef4 Re-enqueue import jobs in state running if the the gemma server starts.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1003
diff changeset
242 // They where in progess when the server went down.
fcf016ebdef4 Re-enqueue import jobs in state running if the the gemma server starts.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1003
diff changeset
243 if err := reEnqueueRunning(); err != nil {
1010
8f23ec811afb Fixed and harmonized wording in importer queue a bit.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1005
diff changeset
244 log.Printf("re-enqueuing failed: %v", err)
1005
fcf016ebdef4 Re-enqueue import jobs in state running if the the gemma server starts.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1003
diff changeset
245 }
fcf016ebdef4 Re-enqueue import jobs in state running if the the gemma server starts.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1003
diff changeset
246
958
2818ad6c7d32 Started with import queue.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
247 for {
998
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
248 var idj *idJob
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
249 var err error
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
250
1003
d789f19877f4 Do not rely on internal gemma state only. Instead poll every 10 seconds for new import jobs.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1000
diff changeset
251 for {
998
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
252 if idj, err = fetchJob(); err != nil {
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
253 log.Printf("db error: %v\n", err)
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254 }
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diff changeset
255 if idj != nil {
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diff changeset
256 break
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257 }
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258 select {
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diff changeset
259 case <-signalChan:
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260 case <-time.After(pollDuration):
998
75e65599ea52 Persist job queue in database. WIP.
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parents: 992
diff changeset
261 }
958
2818ad6c7d32 Started with import queue.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
262 }
998
75e65599ea52 Persist job queue in database. WIP.
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parents: 992
diff changeset
263
1010
8f23ec811afb Fixed and harmonized wording in importer queue a bit.
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parents: 1005
diff changeset
264 log.Printf("starting import #%d\n", idj.id)
987
3841509f6e9e Store job id alongside to job in job queue.
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parents: 979
diff changeset
265
991
a301d240905f Decoupled import job creation and job execution with a factory function.
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diff changeset
266 jc := jobCreator(idj.kind)
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parents: 989
diff changeset
267 if jc == nil {
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diff changeset
268 errorAndFail(idj.id, "no creator for kind '%s' found", idj.kind)
991
a301d240905f Decoupled import job creation and job execution with a factory function.
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parents: 989
diff changeset
269 continue
988
7dfd3db94e6d In preparation of persisting import jobs logging is done through an interface.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 987
diff changeset
270 }
7dfd3db94e6d In preparation of persisting import jobs logging is done through an interface.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 987
diff changeset
271
991
a301d240905f Decoupled import job creation and job execution with a factory function.
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diff changeset
272 job, err := jc(idj.kind, idj.data)
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diff changeset
273 if err != nil {
1010
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parents: 1005
diff changeset
274 errorAndFail(idj.id, "failed to create job for import #%d: %v",
8f23ec811afb Fixed and harmonized wording in importer queue a bit.
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parents: 1005
diff changeset
275 idj.id, err)
991
a301d240905f Decoupled import job creation and job execution with a factory function.
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parents: 989
diff changeset
276 continue
a301d240905f Decoupled import job creation and job execution with a factory function.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 989
diff changeset
277 }
a301d240905f Decoupled import job creation and job execution with a factory function.
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278
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diff changeset
279 feedback := logFeedback(idj.id)
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diff changeset
280
1010
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diff changeset
281 feedback.Info("import #%d started\n", idj.id)
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diff changeset
282
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diff changeset
283 errDo := survive(func() error {
992
a978b2b26a88 Run do and cleanup of import jobs in own go routines with crash handler.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 991
diff changeset
284 return auth.RunAs(idj.user, context.Background(),
998
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diff changeset
285 func(conn *sql.Conn) error { return job.Do(conn, feedback) })
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diff changeset
286 })()
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parents: 992
diff changeset
287 if errDo != nil {
75e65599ea52 Persist job queue in database. WIP.
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parents: 992
diff changeset
288 feedback.Error("error do: %v\n", errDo)
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parents: 992
diff changeset
289 }
1000
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 998
diff changeset
290 errCleanup := survive(job.CleanUp)()
998
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parents: 992
diff changeset
291 if errCleanup != nil {
75e65599ea52 Persist job queue in database. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 992
diff changeset
292 feedback.Error("error cleanup: %v\n", errCleanup)
958
2818ad6c7d32 Started with import queue.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
293 }
998
75e65599ea52 Persist job queue in database. WIP.
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diff changeset
294
1003
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diff changeset
295 var state string
998
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diff changeset
296 if errDo != nil || errCleanup != nil {
1003
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parents: 1000
diff changeset
297 state = "failed"
998
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parents: 992
diff changeset
298 } else {
1003
d789f19877f4 Do not rely on internal gemma state only. Instead poll every 10 seconds for new import jobs.
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parents: 1000
diff changeset
299 state = "successful"
998
75e65599ea52 Persist job queue in database. WIP.
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parents: 992
diff changeset
300 }
1003
d789f19877f4 Do not rely on internal gemma state only. Instead poll every 10 seconds for new import jobs.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1000
diff changeset
301 if err := updateState(idj.id, state); err != nil {
998
75e65599ea52 Persist job queue in database. WIP.
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parents: 992
diff changeset
302 log.Printf("setting state of job %d failed: %v\n", idj.id, err)
958
2818ad6c7d32 Started with import queue.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
303 }
1010
8f23ec811afb Fixed and harmonized wording in importer queue a bit.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1005
diff changeset
304 log.Printf("import #%d finished: %s\n", idj.id, state)
958
2818ad6c7d32 Started with import queue.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
305 }
2818ad6c7d32 Started with import queue.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
306 }