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February 21, 2021 18:36
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Generate a heapdump file for analysis
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| router.post( | |
| '/heapdump-4E5AB3A6ECC24CD5B413A6D4DB5DB02FB4907018', | |
| auth(config.server.authToken), | |
| asyncHandler(async (req, res, next) => { | |
| const { logger } = dependencies; | |
| const hostname = os.hostname(); | |
| const filepath = '/tmp/'; | |
| const filename = `${Date.now()}.heapsnapshot`; | |
| try { | |
| heapdump.writeSnapshot(filepath + filename, err => { | |
| if (err) { | |
| throw err; | |
| } | |
| logger.info('Generated heapdump: ' + filename); | |
| const s3 = new S3(); | |
| const upload = new S3.ManagedUpload({ | |
| service: s3, | |
| params: { | |
| Bucket: 'engineering', | |
| Key: `heapdump/some-service/${hostname}/${filename}`, | |
| Body: fs.createReadStream(filepath + filename) | |
| } | |
| }); | |
| upload.send(err => { | |
| if (err) { | |
| logger.error('Error uploading', { err }); | |
| throw err; | |
| } | |
| logger.info(`Uploaded heapdump: ${filename}`); | |
| res.sendStatus(200); | |
| }); | |
| }); | |
| } catch (e) { | |
| logger.error(e); | |
| res.sendStatus(500); | |
| } | |
| }) | |
| ); |
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